1
/////////////////////////////////////////////////////////////////////////////
2
// Name: src/generic/treectlg.cpp
3
// Purpose: generic tree control implementation
4
// Author: Robert Roebling
6
// Modified: 22/10/98 - almost total rewrite, simpler interface (VZ)
7
// Id: $Id: treectlg.cpp 70625 2012-02-19 14:49:37Z SN $
8
// Copyright: (c) 1998 Robert Roebling and Julian Smart
9
// Licence: wxWindows licence
10
/////////////////////////////////////////////////////////////////////////////
12
// =============================================================================
14
// =============================================================================
16
// -----------------------------------------------------------------------------
18
// -----------------------------------------------------------------------------
20
// For compilers that support precompilation, includes "wx.h".
21
#include "wx/wxprec.h"
29
#include "wx/treectrl.h"
32
#include "wx/dcclient.h"
34
#include "wx/settings.h"
35
#include "wx/listbox.h"
36
#include "wx/textctrl.h"
39
#include "wx/generic/treectlg.h"
40
#include "wx/imaglist.h"
42
#include "wx/renderer.h"
45
#include "wx/osx/private.h"
48
// -----------------------------------------------------------------------------
50
// -----------------------------------------------------------------------------
52
class WXDLLIMPEXP_FWD_CORE wxGenericTreeItem;
54
WX_DEFINE_ARRAY_PTR(wxGenericTreeItem *, wxArrayGenericTreeItems);
56
// ----------------------------------------------------------------------------
58
// ----------------------------------------------------------------------------
60
static const int NO_IMAGE = -1;
62
static const int PIXELS_PER_UNIT = 10;
64
// the margin between the item state image and the item normal image
65
static const int MARGIN_BETWEEN_STATE_AND_IMAGE = 2;
67
// the margin between the item image and the item text
68
static const int MARGIN_BETWEEN_IMAGE_AND_TEXT = 4;
70
// -----------------------------------------------------------------------------
72
// -----------------------------------------------------------------------------
74
// timer used for enabling in-place edit
75
class WXDLLEXPORT wxTreeRenameTimer: public wxTimer
78
// start editing the current item after half a second (if the mouse hasn't
79
// been clicked/moved)
82
wxTreeRenameTimer( wxGenericTreeCtrl *owner );
84
virtual void Notify();
87
wxGenericTreeCtrl *m_owner;
89
wxDECLARE_NO_COPY_CLASS(wxTreeRenameTimer);
92
// control used for in-place edit
93
class WXDLLEXPORT wxTreeTextCtrl: public wxTextCtrl
96
wxTreeTextCtrl(wxGenericTreeCtrl *owner, wxGenericTreeItem *item);
98
void EndEdit( bool discardChanges );
100
const wxGenericTreeItem* item() const { return m_itemEdited; }
103
void OnChar( wxKeyEvent &event );
104
void OnKeyUp( wxKeyEvent &event );
105
void OnKillFocus( wxFocusEvent &event );
107
bool AcceptChanges();
108
void Finish( bool setfocus );
111
wxGenericTreeCtrl *m_owner;
112
wxGenericTreeItem *m_itemEdited;
113
wxString m_startValue;
114
bool m_aboutToFinish;
116
DECLARE_EVENT_TABLE()
117
wxDECLARE_NO_COPY_CLASS(wxTreeTextCtrl);
120
// timer used to clear wxGenericTreeCtrl::m_findPrefix if no key was pressed
121
// for a sufficiently long time
122
class WXDLLEXPORT wxTreeFindTimer : public wxTimer
125
// reset the current prefix after half a second of inactivity
126
enum { DELAY = 500 };
128
wxTreeFindTimer( wxGenericTreeCtrl *owner ) { m_owner = owner; }
130
virtual void Notify() { m_owner->m_findPrefix.clear(); }
133
wxGenericTreeCtrl *m_owner;
135
wxDECLARE_NO_COPY_CLASS(wxTreeFindTimer);
139
class WXDLLEXPORT wxGenericTreeItem
150
wxGenericTreeItem( wxGenericTreeItem *parent,
151
const wxString& text,
154
wxTreeItemData *data );
156
~wxGenericTreeItem();
159
wxArrayGenericTreeItems& GetChildren() { return m_children; }
161
const wxString& GetText() const { return m_text; }
162
int GetImage(wxTreeItemIcon which = wxTreeItemIcon_Normal) const
163
{ return m_images[which]; }
164
wxTreeItemData *GetData() const { return m_data; }
165
int GetState() const { return m_state; }
167
// returns the current image for the item (depending on its
168
// selected/expanded/whatever state)
169
int GetCurrentImage() const;
171
void SetText(const wxString& text)
178
void SetImage(int image, wxTreeItemIcon which)
180
m_images[which] = image;
184
void SetData(wxTreeItemData *data) { m_data = data; }
185
void SetState(int state) { m_state = state; m_width = 0; }
187
void SetHasPlus(bool has = true) { m_hasPlus = has; }
189
void SetBold(bool bold)
196
int GetX() const { return m_x; }
197
int GetY() const { return m_y; }
199
void SetX(int x) { m_x = x; }
200
void SetY(int y) { m_y = y; }
202
int GetHeight() const { return m_height; }
203
int GetWidth() const { return m_width; }
205
int GetTextHeight() const
207
wxASSERT_MSG( m_heightText != -1, "must call CalculateSize() first" );
212
int GetTextWidth() const
214
wxASSERT_MSG( m_widthText != -1, "must call CalculateSize() first" );
219
wxGenericTreeItem *GetParent() const { return m_parent; }
221
// sets the items font for the specified DC if it uses any special font or
222
// simply returns false otherwise
223
bool SetFont(wxGenericTreeCtrl *control, wxDC& dc) const
227
wxTreeItemAttr * const attr = GetAttributes();
228
if ( attr && attr->HasFont() )
229
font = attr->GetFont();
231
font = control->m_boldFont;
241
// deletes all children notifying the treectrl about it
242
void DeleteChildren(wxGenericTreeCtrl *tree);
244
// get count of all children (and grand children if 'recursively')
245
size_t GetChildrenCount(bool recursively = true) const;
247
void Insert(wxGenericTreeItem *child, size_t index)
248
{ m_children.Insert(child, index); }
250
// calculate and cache the item size using either the provided DC (which is
251
// supposed to have wxGenericTreeCtrl::m_normalFont selected into it!) or a
252
// wxClientDC on the control window
253
void CalculateSize(wxGenericTreeCtrl *control, wxDC& dc)
254
{ DoCalculateSize(control, dc, true /* dc uses normal font */); }
255
void CalculateSize(wxGenericTreeCtrl *control);
257
void GetSize( int &x, int &y, const wxGenericTreeCtrl* );
259
void ResetSize() { m_width = 0; }
260
void ResetTextSize() { m_width = 0; m_widthText = -1; }
261
void RecursiveResetSize();
262
void RecursiveResetTextSize();
264
// return the item at given position (or NULL if no item), onButton is
265
// true if the point belongs to the item's button, otherwise it lies
266
// on the item's label
267
wxGenericTreeItem *HitTest( const wxPoint& point,
268
const wxGenericTreeCtrl *,
272
void Expand() { m_isCollapsed = false; }
273
void Collapse() { m_isCollapsed = true; }
275
void SetHilight( bool set = true ) { m_hasHilight = set; }
278
bool HasChildren() const { return !m_children.IsEmpty(); }
279
bool IsSelected() const { return m_hasHilight != 0; }
280
bool IsExpanded() const { return !m_isCollapsed; }
281
bool HasPlus() const { return m_hasPlus || HasChildren(); }
282
bool IsBold() const { return m_isBold != 0; }
285
// get them - may be NULL
286
wxTreeItemAttr *GetAttributes() const { return m_attr; }
287
// get them ensuring that the pointer is not NULL
288
wxTreeItemAttr& Attr()
292
m_attr = new wxTreeItemAttr;
298
void SetAttributes(wxTreeItemAttr *attr)
300
if ( m_ownsAttr ) delete m_attr;
306
// set them and delete when done
307
void AssignAttributes(wxTreeItemAttr *attr)
316
// calculate the size of this item, i.e. set m_width, m_height and
317
// m_widthText and m_heightText properly
319
// if dcUsesNormalFont is true, the current dc font must be the normal tree
321
void DoCalculateSize(wxGenericTreeCtrl *control,
323
bool dcUsesNormalFont);
325
// since there can be very many of these, we save size by chosing
326
// the smallest representation for the elements and by ordering
327
// the members to avoid padding.
328
wxString m_text; // label to be rendered for item
332
wxTreeItemData *m_data; // user-provided data
334
int m_state; // item state
336
wxArrayGenericTreeItems m_children; // list of children
337
wxGenericTreeItem *m_parent; // parent of this item
339
wxTreeItemAttr *m_attr; // attributes???
341
// tree ctrl images for the normal, selected, expanded and
342
// expanded+selected states
343
int m_images[wxTreeItemIcon_Max];
345
wxCoord m_x; // (virtual) offset from top
346
wxCoord m_y; // (virtual) offset from left
347
int m_width; // width of this item
348
int m_height; // height of this item
350
// use bitfields to save size
351
unsigned int m_isCollapsed :1;
352
unsigned int m_hasHilight :1; // same as focused
353
unsigned int m_hasPlus :1; // used for item which doesn't have
354
// children but has a [+] button
355
unsigned int m_isBold :1; // render the label in bold font
356
unsigned int m_ownsAttr :1; // delete attribute when done
358
wxDECLARE_NO_COPY_CLASS(wxGenericTreeItem);
361
// =============================================================================
363
// =============================================================================
365
// ----------------------------------------------------------------------------
367
// ----------------------------------------------------------------------------
369
// translate the key or mouse event flags to the type of selection we're
371
static void EventFlagsToSelType(long style,
375
bool &extended_select,
376
bool &unselect_others)
378
is_multiple = (style & wxTR_MULTIPLE) != 0;
379
extended_select = shiftDown && is_multiple;
380
unselect_others = !(extended_select || (ctrlDown && is_multiple));
383
// check if the given item is under another one
385
IsDescendantOf(const wxGenericTreeItem *parent, const wxGenericTreeItem *item)
389
if ( item == parent )
391
// item is a descendant of parent
395
item = item->GetParent();
401
// -----------------------------------------------------------------------------
402
// wxTreeRenameTimer (internal)
403
// -----------------------------------------------------------------------------
405
wxTreeRenameTimer::wxTreeRenameTimer( wxGenericTreeCtrl *owner )
410
void wxTreeRenameTimer::Notify()
412
m_owner->OnRenameTimer();
415
//-----------------------------------------------------------------------------
416
// wxTreeTextCtrl (internal)
417
//-----------------------------------------------------------------------------
419
BEGIN_EVENT_TABLE(wxTreeTextCtrl,wxTextCtrl)
420
EVT_CHAR (wxTreeTextCtrl::OnChar)
421
EVT_KEY_UP (wxTreeTextCtrl::OnKeyUp)
422
EVT_KILL_FOCUS (wxTreeTextCtrl::OnKillFocus)
425
wxTreeTextCtrl::wxTreeTextCtrl(wxGenericTreeCtrl *owner,
426
wxGenericTreeItem *item)
427
: m_itemEdited(item), m_startValue(item->GetText())
430
m_aboutToFinish = false;
433
m_owner->GetBoundingRect(m_itemEdited, rect, true);
435
// corrects position and size for better appearance
439
#elif defined(__WXGTK__)
444
#elif defined(wxOSX_USE_CARBON) && wxOSX_USE_CARBON
445
int bestHeight = GetBestSize().y - 8;
446
if ( rect.height > bestHeight )
448
int diff = rect.height - bestHeight;
454
(void)Create(m_owner, wxID_ANY, m_startValue,
455
rect.GetPosition(), rect.GetSize());
457
SetSelection(-1, -1);
460
void wxTreeTextCtrl::EndEdit(bool discardChanges)
462
m_aboutToFinish = true;
464
if ( discardChanges )
466
m_owner->OnRenameCancelled(m_itemEdited);
472
// Notify the owner about the changes
475
// Even if vetoed, close the control (consistent with MSW)
480
bool wxTreeTextCtrl::AcceptChanges()
482
const wxString value = GetValue();
484
if ( value == m_startValue )
486
// nothing changed, always accept
487
// when an item remains unchanged, the owner
488
// needs to be notified that the user decided
489
// not to change the tree item label, and that
490
// the edit has been cancelled
492
m_owner->OnRenameCancelled(m_itemEdited);
496
if ( !m_owner->OnRenameAccept(m_itemEdited, value) )
498
// vetoed by the user
502
// accepted, do rename the item
503
m_owner->SetItemText(m_itemEdited, value);
508
void wxTreeTextCtrl::Finish( bool setfocus )
510
m_owner->ResetTextControl();
512
wxPendingDelete.Append(this);
518
void wxTreeTextCtrl::OnChar( wxKeyEvent &event )
520
switch ( event.m_keyCode )
535
void wxTreeTextCtrl::OnKeyUp( wxKeyEvent &event )
537
if ( !m_aboutToFinish )
539
// auto-grow the textctrl:
540
wxSize parentSize = m_owner->GetSize();
541
wxPoint myPos = GetPosition();
542
wxSize mySize = GetSize();
544
GetTextExtent(GetValue() + wxT("M"), &sx, &sy);
545
if (myPos.x + sx > parentSize.x)
546
sx = parentSize.x - myPos.x;
549
SetSize(sx, wxDefaultCoord);
555
void wxTreeTextCtrl::OnKillFocus( wxFocusEvent &event )
557
if ( !m_aboutToFinish )
559
if ( !AcceptChanges() )
560
m_owner->OnRenameCancelled( m_itemEdited );
565
// We should let the native text control handle focus, too.
569
// -----------------------------------------------------------------------------
571
// -----------------------------------------------------------------------------
573
wxGenericTreeItem::wxGenericTreeItem(wxGenericTreeItem *parent,
574
const wxString& text,
575
int image, int selImage,
576
wxTreeItemData *data)
579
m_images[wxTreeItemIcon_Normal] = image;
580
m_images[wxTreeItemIcon_Selected] = selImage;
581
m_images[wxTreeItemIcon_Expanded] = NO_IMAGE;
582
m_images[wxTreeItemIcon_SelectedExpanded] = NO_IMAGE;
585
m_state = wxTREE_ITEMSTATE_NONE;
588
m_isCollapsed = true;
589
m_hasHilight = false;
598
// We don't know the height here yet.
606
wxGenericTreeItem::~wxGenericTreeItem()
610
if (m_ownsAttr) delete m_attr;
612
wxASSERT_MSG( m_children.IsEmpty(),
613
"must call DeleteChildren() before deleting the item" );
616
void wxGenericTreeItem::DeleteChildren(wxGenericTreeCtrl *tree)
618
size_t count = m_children.GetCount();
619
for ( size_t n = 0; n < count; n++ )
621
wxGenericTreeItem *child = m_children[n];
622
tree->SendDeleteEvent(child);
624
child->DeleteChildren(tree);
625
if ( child == tree->m_select_me )
626
tree->m_select_me = NULL;
633
size_t wxGenericTreeItem::GetChildrenCount(bool recursively) const
635
size_t count = m_children.GetCount();
639
size_t total = count;
640
for (size_t n = 0; n < count; ++n)
642
total += m_children[n]->GetChildrenCount();
648
void wxGenericTreeItem::GetSize( int &x, int &y,
649
const wxGenericTreeCtrl *theButton )
651
int bottomY=m_y+theButton->GetLineHeight(this);
652
if ( y < bottomY ) y = bottomY;
653
int width = m_x + m_width;
654
if ( x < width ) x = width;
658
size_t count = m_children.GetCount();
659
for ( size_t n = 0; n < count; ++n )
661
m_children[n]->GetSize( x, y, theButton );
666
wxGenericTreeItem *wxGenericTreeItem::HitTest(const wxPoint& point,
667
const wxGenericTreeCtrl *theCtrl,
671
// for a hidden root node, don't evaluate it, but do evaluate children
672
if ( !(level == 0 && theCtrl->HasFlag(wxTR_HIDE_ROOT)) )
675
int h = theCtrl->GetLineHeight(this);
676
if ((point.y > m_y) && (point.y < m_y + h))
678
int y_mid = m_y + h/2;
679
if (point.y < y_mid )
680
flags |= wxTREE_HITTEST_ONITEMUPPERPART;
682
flags |= wxTREE_HITTEST_ONITEMLOWERPART;
684
int xCross = m_x - theCtrl->GetSpacing();
686
// according to the drawing code the triangels are drawn
687
// at -4 , -4 from the position up to +10/+10 max
688
if ((point.x > xCross-4) && (point.x < xCross+10) &&
689
(point.y > y_mid-4) && (point.y < y_mid+10) &&
690
HasPlus() && theCtrl->HasButtons() )
692
// 5 is the size of the plus sign
693
if ((point.x > xCross-6) && (point.x < xCross+6) &&
694
(point.y > y_mid-6) && (point.y < y_mid+6) &&
695
HasPlus() && theCtrl->HasButtons() )
698
flags |= wxTREE_HITTEST_ONITEMBUTTON;
702
if ((point.x >= m_x) && (point.x <= m_x+m_width))
707
// assuming every image (normal and selected) has the same size!
708
if ( (GetImage() != NO_IMAGE) && theCtrl->m_imageListNormal )
710
theCtrl->m_imageListNormal->GetSize(GetImage(),
717
if ( (GetState() != wxTREE_ITEMSTATE_NONE) &&
718
theCtrl->m_imageListState )
720
theCtrl->m_imageListState->GetSize(GetState(),
724
if ((state_w != -1) && (point.x <= m_x + state_w + 1))
725
flags |= wxTREE_HITTEST_ONITEMSTATEICON;
726
else if ((image_w != -1) &&
728
(state_w != -1 ? state_w +
729
MARGIN_BETWEEN_STATE_AND_IMAGE
732
flags |= wxTREE_HITTEST_ONITEMICON;
734
flags |= wxTREE_HITTEST_ONITEMLABEL;
740
flags |= wxTREE_HITTEST_ONITEMINDENT;
741
if (point.x > m_x+m_width)
742
flags |= wxTREE_HITTEST_ONITEMRIGHT;
747
// if children are expanded, fall through to evaluate them
748
if (m_isCollapsed) return NULL;
752
size_t count = m_children.GetCount();
753
for ( size_t n = 0; n < count; n++ )
755
wxGenericTreeItem *res = m_children[n]->HitTest( point,
766
int wxGenericTreeItem::GetCurrentImage() const
768
int image = NO_IMAGE;
773
image = GetImage(wxTreeItemIcon_SelectedExpanded);
776
if ( image == NO_IMAGE )
778
// we usually fall back to the normal item, but try just the
779
// expanded one (and not selected) first in this case
780
image = GetImage(wxTreeItemIcon_Expanded);
786
image = GetImage(wxTreeItemIcon_Selected);
789
// maybe it doesn't have the specific image we want,
790
// try the default one instead
791
if ( image == NO_IMAGE ) image = GetImage();
796
void wxGenericTreeItem::CalculateSize(wxGenericTreeCtrl* control)
798
// check if we need to do anything before creating the DC
802
wxClientDC dc(control);
803
DoCalculateSize(control, dc, false /* normal font not used */);
807
wxGenericTreeItem::DoCalculateSize(wxGenericTreeCtrl* control,
809
bool dcUsesNormalFont)
811
if ( m_width != 0 ) // Size known, nothing to do
814
if ( m_widthText == -1 )
817
if ( SetFont(control, dc) )
821
else // we have no special font
823
if ( !dcUsesNormalFont )
825
// but we do need to ensure that the normal font is used: notice
826
// that this doesn't count as changing the font as we don't need
828
dc.SetFont(control->m_normalFont);
834
dc.GetTextExtent( GetText(), &m_widthText, &m_heightText );
836
// restore normal font if the DC used it previously and we changed it
838
dc.SetFont(control->m_normalFont);
841
int text_h = m_heightText + 2;
843
int image_h = 0, image_w = 0;
844
int image = GetCurrentImage();
845
if ( image != NO_IMAGE && control->m_imageListNormal )
847
control->m_imageListNormal->GetSize(image, image_w, image_h);
848
image_w += MARGIN_BETWEEN_IMAGE_AND_TEXT;
851
int state_h = 0, state_w = 0;
852
int state = GetState();
853
if ( state != wxTREE_ITEMSTATE_NONE && control->m_imageListState )
855
control->m_imageListState->GetSize(state, state_w, state_h);
857
state_w += MARGIN_BETWEEN_STATE_AND_IMAGE;
859
state_w += MARGIN_BETWEEN_IMAGE_AND_TEXT;
862
int img_h = wxMax(state_h, image_h);
863
m_height = wxMax(img_h, text_h);
866
m_height += 2; // at least 2 pixels
868
m_height += m_height / 10; // otherwise 10% extra spacing
870
if (m_height > control->m_lineHeight)
871
control->m_lineHeight = m_height;
873
m_width = state_w + image_w + m_widthText + 2;
876
void wxGenericTreeItem::RecursiveResetSize()
880
const size_t count = m_children.Count();
881
for (size_t i = 0; i < count; i++ )
882
m_children[i]->RecursiveResetSize();
885
void wxGenericTreeItem::RecursiveResetTextSize()
890
const size_t count = m_children.Count();
891
for (size_t i = 0; i < count; i++ )
892
m_children[i]->RecursiveResetTextSize();
895
// -----------------------------------------------------------------------------
896
// wxGenericTreeCtrl implementation
897
// -----------------------------------------------------------------------------
899
IMPLEMENT_DYNAMIC_CLASS(wxGenericTreeCtrl, wxControl)
901
BEGIN_EVENT_TABLE(wxGenericTreeCtrl, wxTreeCtrlBase)
902
EVT_PAINT (wxGenericTreeCtrl::OnPaint)
903
EVT_SIZE (wxGenericTreeCtrl::OnSize)
904
EVT_MOUSE_EVENTS (wxGenericTreeCtrl::OnMouse)
905
EVT_KEY_DOWN (wxGenericTreeCtrl::OnKeyDown)
906
EVT_CHAR (wxGenericTreeCtrl::OnChar)
907
EVT_SET_FOCUS (wxGenericTreeCtrl::OnSetFocus)
908
EVT_KILL_FOCUS (wxGenericTreeCtrl::OnKillFocus)
909
EVT_TREE_ITEM_GETTOOLTIP(wxID_ANY, wxGenericTreeCtrl::OnGetToolTip)
912
// -----------------------------------------------------------------------------
913
// construction/destruction
914
// -----------------------------------------------------------------------------
916
void wxGenericTreeCtrl::Init()
929
m_hilightBrush = new wxBrush
931
wxSystemSettings::GetColour
933
wxSYS_COLOUR_HIGHLIGHT
938
m_hilightUnfocusedBrush = new wxBrush
940
wxSystemSettings::GetColour
942
wxSYS_COLOUR_BTNSHADOW
947
m_imageListButtons = NULL;
948
m_ownsImageListButtons = false;
951
m_isDragging = false;
952
m_dropTarget = m_oldSelection = NULL;
956
m_renameTimer = NULL;
960
m_dropEffectAboveItem = false;
962
m_dndEffect = NoEffect;
963
m_dndEffectItem = NULL;
965
m_lastOnSame = false;
967
#if defined( __WXMAC__ )
968
m_normalFont = wxFont(wxOSX_SYSTEM_FONT_VIEWS);
970
m_normalFont = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT );
972
m_boldFont = m_normalFont.Bold();
975
bool wxGenericTreeCtrl::Create(wxWindow *parent,
980
const wxValidator& validator,
981
const wxString& name )
985
wxGetOsVersion(&major, &minor);
988
style |= wxTR_ROW_LINES;
990
if (style & wxTR_HAS_BUTTONS)
991
style |= wxTR_NO_LINES;
995
if (style & wxTR_HAS_BUTTONS)
996
style |= wxTR_NO_LINES;
999
if ( !wxControl::Create( parent, id, pos, size,
1000
style|wxHSCROLL|wxVSCROLL|wxWANTS_CHARS,
1005
// If the tree display has no buttons, but does have
1006
// connecting lines, we can use a narrower layout.
1007
// It may not be a good idea to force this...
1008
if (!HasButtons() && !HasFlag(wxTR_NO_LINES))
1014
wxVisualAttributes attr = GetDefaultAttributes();
1015
SetOwnForegroundColour( attr.colFg );
1016
SetOwnBackgroundColour( attr.colBg );
1018
SetOwnFont(attr.font);
1020
// this is a misnomer: it's called "dotted pen" but uses (default) wxSOLID
1021
// style because we apparently get performance problems when using dotted
1022
// pen for drawing in some ports -- but under MSW it seems to work fine
1024
m_dottedPen = wxPen(*wxLIGHT_GREY, 0, wxPENSTYLE_DOT);
1026
m_dottedPen = *wxGREY_PEN;
1029
SetInitialSize(size);
1034
wxGenericTreeCtrl::~wxGenericTreeCtrl()
1036
delete m_hilightBrush;
1037
delete m_hilightUnfocusedBrush;
1041
delete m_renameTimer;
1044
if (m_ownsImageListButtons)
1045
delete m_imageListButtons;
1048
// -----------------------------------------------------------------------------
1050
// -----------------------------------------------------------------------------
1052
unsigned int wxGenericTreeCtrl::GetCount() const
1056
// the tree is empty
1060
unsigned int count = m_anchor->GetChildrenCount();
1061
if ( !HasFlag(wxTR_HIDE_ROOT) )
1063
// take the root itself into account
1070
void wxGenericTreeCtrl::SetIndent(unsigned int indent)
1072
m_indent = (unsigned short) indent;
1077
wxGenericTreeCtrl::GetChildrenCount(const wxTreeItemId& item,
1078
bool recursively) const
1080
wxCHECK_MSG( item.IsOk(), 0u, wxT("invalid tree item") );
1082
return ((wxGenericTreeItem*) item.m_pItem)->GetChildrenCount(recursively);
1085
void wxGenericTreeCtrl::SetWindowStyle(const long styles)
1087
// Do not try to expand the root node if it hasn't been created yet
1088
if (m_anchor && !HasFlag(wxTR_HIDE_ROOT) && (styles & wxTR_HIDE_ROOT))
1090
// if we will hide the root, make sure children are visible
1091
m_anchor->SetHasPlus();
1093
CalculatePositions();
1096
// right now, just sets the styles. Eventually, we may
1097
// want to update the inherited styles, but right now
1098
// none of the parents has updatable styles
1099
m_windowStyle = styles;
1103
// -----------------------------------------------------------------------------
1104
// functions to work with tree items
1105
// -----------------------------------------------------------------------------
1107
wxString wxGenericTreeCtrl::GetItemText(const wxTreeItemId& item) const
1109
wxCHECK_MSG( item.IsOk(), wxEmptyString, wxT("invalid tree item") );
1111
return ((wxGenericTreeItem*) item.m_pItem)->GetText();
1114
int wxGenericTreeCtrl::GetItemImage(const wxTreeItemId& item,
1115
wxTreeItemIcon which) const
1117
wxCHECK_MSG( item.IsOk(), -1, wxT("invalid tree item") );
1119
return ((wxGenericTreeItem*) item.m_pItem)->GetImage(which);
1122
wxTreeItemData *wxGenericTreeCtrl::GetItemData(const wxTreeItemId& item) const
1124
wxCHECK_MSG( item.IsOk(), NULL, wxT("invalid tree item") );
1126
return ((wxGenericTreeItem*) item.m_pItem)->GetData();
1129
int wxGenericTreeCtrl::DoGetItemState(const wxTreeItemId& item) const
1131
wxCHECK_MSG( item.IsOk(), wxTREE_ITEMSTATE_NONE, wxT("invalid tree item") );
1133
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1134
return pItem->GetState();
1137
wxColour wxGenericTreeCtrl::GetItemTextColour(const wxTreeItemId& item) const
1139
wxCHECK_MSG( item.IsOk(), wxNullColour, wxT("invalid tree item") );
1141
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1142
return pItem->Attr().GetTextColour();
1146
wxGenericTreeCtrl::GetItemBackgroundColour(const wxTreeItemId& item) const
1148
wxCHECK_MSG( item.IsOk(), wxNullColour, wxT("invalid tree item") );
1150
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1151
return pItem->Attr().GetBackgroundColour();
1154
wxFont wxGenericTreeCtrl::GetItemFont(const wxTreeItemId& item) const
1156
wxCHECK_MSG( item.IsOk(), wxNullFont, wxT("invalid tree item") );
1158
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1159
return pItem->Attr().GetFont();
1163
wxGenericTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
1165
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
1167
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1168
pItem->SetText(text);
1169
pItem->CalculateSize(this);
1173
void wxGenericTreeCtrl::SetItemImage(const wxTreeItemId& item,
1175
wxTreeItemIcon which)
1177
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
1179
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1180
pItem->SetImage(image, which);
1181
pItem->CalculateSize(this);
1186
wxGenericTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
1188
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
1191
data->SetId( item );
1193
((wxGenericTreeItem*) item.m_pItem)->SetData(data);
1196
void wxGenericTreeCtrl::DoSetItemState(const wxTreeItemId& item, int state)
1198
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
1200
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1201
pItem->SetState(state);
1202
pItem->CalculateSize(this);
1206
void wxGenericTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
1208
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
1210
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1211
pItem->SetHasPlus(has);
1215
void wxGenericTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
1217
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
1219
// avoid redrawing the tree if no real change
1220
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1221
if ( pItem->IsBold() != bold )
1223
pItem->SetBold(bold);
1225
// recalculate the item size as bold and non bold fonts have different
1227
pItem->CalculateSize(this);
1232
void wxGenericTreeCtrl::SetItemDropHighlight(const wxTreeItemId& item,
1235
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
1241
bg = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
1242
fg = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
1245
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1246
pItem->Attr().SetTextColour(fg);
1247
pItem->Attr().SetBackgroundColour(bg);
1251
void wxGenericTreeCtrl::SetItemTextColour(const wxTreeItemId& item,
1252
const wxColour& col)
1254
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
1256
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1257
pItem->Attr().SetTextColour(col);
1261
void wxGenericTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item,
1262
const wxColour& col)
1264
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
1266
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1267
pItem->Attr().SetBackgroundColour(col);
1272
wxGenericTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font)
1274
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
1276
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1277
pItem->Attr().SetFont(font);
1278
pItem->ResetTextSize();
1279
pItem->CalculateSize(this);
1283
bool wxGenericTreeCtrl::SetFont( const wxFont &font )
1285
wxTreeCtrlBase::SetFont(font);
1287
m_normalFont = font;
1288
m_boldFont = m_normalFont.Bold();
1291
m_anchor->RecursiveResetTextSize();
1297
// -----------------------------------------------------------------------------
1298
// item status inquiries
1299
// -----------------------------------------------------------------------------
1301
bool wxGenericTreeCtrl::IsVisible(const wxTreeItemId& item) const
1303
wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
1305
// An item is only visible if it's not a descendant of a collapsed item
1306
wxGenericTreeItem *pItem = (wxGenericTreeItem*) item.m_pItem;
1307
wxGenericTreeItem* parent = pItem->GetParent();
1310
if (!parent->IsExpanded())
1312
parent = parent->GetParent();
1316
GetViewStart(& startX, & startY);
1318
wxSize clientSize = GetClientSize();
1321
if (!GetBoundingRect(item, rect))
1323
if (rect.GetWidth() == 0 || rect.GetHeight() == 0)
1325
if (rect.GetBottom() < 0 || rect.GetTop() > clientSize.y)
1327
if (rect.GetRight() < 0 || rect.GetLeft() > clientSize.x)
1333
bool wxGenericTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const
1335
wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
1337
// consider that the item does have children if it has the "+" button: it
1338
// might not have them (if it had never been expanded yet) but then it
1339
// could have them as well and it's better to err on this side rather than
1340
// disabling some operations which are restricted to the items with
1341
// children for an item which does have them
1342
return ((wxGenericTreeItem*) item.m_pItem)->HasPlus();
1345
bool wxGenericTreeCtrl::IsExpanded(const wxTreeItemId& item) const
1347
wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
1349
return ((wxGenericTreeItem*) item.m_pItem)->IsExpanded();
1352
bool wxGenericTreeCtrl::IsSelected(const wxTreeItemId& item) const
1354
wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
1356
return ((wxGenericTreeItem*) item.m_pItem)->IsSelected();
1359
bool wxGenericTreeCtrl::IsBold(const wxTreeItemId& item) const
1361
wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
1363
return ((wxGenericTreeItem*) item.m_pItem)->IsBold();
1366
// -----------------------------------------------------------------------------
1368
// -----------------------------------------------------------------------------
1370
wxTreeItemId wxGenericTreeCtrl::GetItemParent(const wxTreeItemId& item) const
1372
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1374
return ((wxGenericTreeItem*) item.m_pItem)->GetParent();
1377
wxTreeItemId wxGenericTreeCtrl::GetFirstChild(const wxTreeItemId& item,
1378
wxTreeItemIdValue& cookie) const
1380
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1383
return GetNextChild(item, cookie);
1386
wxTreeItemId wxGenericTreeCtrl::GetNextChild(const wxTreeItemId& item,
1387
wxTreeItemIdValue& cookie) const
1389
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1391
wxArrayGenericTreeItems&
1392
children = ((wxGenericTreeItem*) item.m_pItem)->GetChildren();
1394
// it's ok to cast cookie to size_t, we never have indices big enough to
1395
// overflow "void *"
1396
size_t *pIndex = (size_t *)&cookie;
1397
if ( *pIndex < children.GetCount() )
1399
return children.Item((*pIndex)++);
1403
// there are no more of them
1404
return wxTreeItemId();
1408
wxTreeItemId wxGenericTreeCtrl::GetLastChild(const wxTreeItemId& item) const
1410
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1412
wxArrayGenericTreeItems&
1413
children = ((wxGenericTreeItem*) item.m_pItem)->GetChildren();
1414
return children.IsEmpty() ? wxTreeItemId() : wxTreeItemId(children.Last());
1417
wxTreeItemId wxGenericTreeCtrl::GetNextSibling(const wxTreeItemId& item) const
1419
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1421
wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
1422
wxGenericTreeItem *parent = i->GetParent();
1423
if ( parent == NULL )
1425
// root item doesn't have any siblings
1426
return wxTreeItemId();
1429
wxArrayGenericTreeItems& siblings = parent->GetChildren();
1430
int index = siblings.Index(i);
1431
wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
1433
size_t n = (size_t)(index + 1);
1434
return n == siblings.GetCount() ? wxTreeItemId()
1435
: wxTreeItemId(siblings[n]);
1438
wxTreeItemId wxGenericTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const
1440
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1442
wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
1443
wxGenericTreeItem *parent = i->GetParent();
1444
if ( parent == NULL )
1446
// root item doesn't have any siblings
1447
return wxTreeItemId();
1450
wxArrayGenericTreeItems& siblings = parent->GetChildren();
1451
int index = siblings.Index(i);
1452
wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
1454
return index == 0 ? wxTreeItemId()
1455
: wxTreeItemId(siblings[(size_t)(index - 1)]);
1458
// Only for internal use right now, but should probably be public
1459
wxTreeItemId wxGenericTreeCtrl::GetNext(const wxTreeItemId& item) const
1461
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1463
wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
1465
// First see if there are any children.
1466
wxArrayGenericTreeItems& children = i->GetChildren();
1467
if (children.GetCount() > 0)
1469
return children.Item(0);
1473
// Try a sibling of this or ancestor instead
1474
wxTreeItemId p = item;
1475
wxTreeItemId toFind;
1478
toFind = GetNextSibling(p);
1479
p = GetItemParent(p);
1480
} while (p.IsOk() && !toFind.IsOk());
1485
wxTreeItemId wxGenericTreeCtrl::GetFirstVisibleItem() const
1487
wxTreeItemId itemid = GetRootItem();
1493
if (IsVisible(itemid))
1495
itemid = GetNext(itemid);
1496
} while (itemid.IsOk());
1498
return wxTreeItemId();
1501
wxTreeItemId wxGenericTreeCtrl::GetNextVisible(const wxTreeItemId& item) const
1503
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1504
wxASSERT_MSG( IsVisible(item), wxT("this item itself should be visible") );
1506
wxTreeItemId id = item;
1509
while (id = GetNext(id), id.IsOk())
1515
return wxTreeItemId();
1518
wxTreeItemId wxGenericTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const
1520
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
1521
wxASSERT_MSG( IsVisible(item), wxT("this item itself should be visible") );
1523
// find out the starting point
1524
wxTreeItemId prevItem = GetPrevSibling(item);
1525
if ( !prevItem.IsOk() )
1527
prevItem = GetItemParent(item);
1530
// find the first visible item after it
1531
while ( prevItem.IsOk() && !IsVisible(prevItem) )
1533
prevItem = GetNext(prevItem);
1534
if ( !prevItem.IsOk() || prevItem == item )
1536
// there are no visible items before item
1537
return wxTreeItemId();
1541
// from there we must be able to navigate until this item
1542
while ( prevItem.IsOk() )
1544
const wxTreeItemId nextItem = GetNextVisible(prevItem);
1545
if ( !nextItem.IsOk() || nextItem == item )
1548
prevItem = nextItem;
1554
// called by wxTextTreeCtrl when it marks itself for deletion
1555
void wxGenericTreeCtrl::ResetTextControl()
1560
// find the first item starting with the given prefix after the given item
1561
wxTreeItemId wxGenericTreeCtrl::FindItem(const wxTreeItemId& idParent,
1562
const wxString& prefixOrig) const
1564
// match is case insensitive as this is more convenient to the user: having
1565
// to press Shift-letter to go to the item starting with a capital letter
1566
// would be too bothersome
1567
wxString prefix = prefixOrig.Lower();
1569
// determine the starting point: we shouldn't take the current item (this
1570
// allows to switch between two items starting with the same letter just by
1571
// pressing it) but we shouldn't jump to the next one if the user is
1572
// continuing to type as otherwise he might easily skip the item he wanted
1573
wxTreeItemId itemid = idParent;
1574
if ( prefix.length() == 1 )
1576
itemid = GetNext(itemid);
1579
// look for the item starting with the given prefix after it
1580
while ( itemid.IsOk() && !GetItemText(itemid).Lower().StartsWith(prefix) )
1582
itemid = GetNext(itemid);
1585
// if we haven't found anything...
1586
if ( !itemid.IsOk() )
1588
// ... wrap to the beginning
1589
itemid = GetRootItem();
1590
if ( HasFlag(wxTR_HIDE_ROOT) )
1592
// can't select virtual root
1593
itemid = GetNext(itemid);
1596
// and try all the items (stop when we get to the one we started from)
1597
while ( itemid.IsOk() && itemid != idParent &&
1598
!GetItemText(itemid).Lower().StartsWith(prefix) )
1600
itemid = GetNext(itemid);
1602
// If we haven't found the item, id.IsOk() will be false, as per
1609
// -----------------------------------------------------------------------------
1611
// -----------------------------------------------------------------------------
1613
wxTreeItemId wxGenericTreeCtrl::DoInsertItem(const wxTreeItemId& parentId,
1615
const wxString& text,
1618
wxTreeItemData *data)
1620
wxGenericTreeItem *parent = (wxGenericTreeItem*) parentId.m_pItem;
1623
// should we give a warning here?
1624
return AddRoot(text, image, selImage, data);
1627
m_dirty = true; // do this first so stuff below doesn't cause flicker
1629
wxGenericTreeItem *item =
1630
new wxGenericTreeItem( parent, text, image, selImage, data );
1634
data->m_pItem = item;
1637
parent->Insert( item, previous == (size_t)-1 ? parent->GetChildren().size()
1640
InvalidateBestSize();
1644
wxTreeItemId wxGenericTreeCtrl::AddRoot(const wxString& text,
1647
wxTreeItemData *data)
1649
wxCHECK_MSG( !m_anchor, wxTreeItemId(), "tree can have only one root" );
1651
m_dirty = true; // do this first so stuff below doesn't cause flicker
1653
m_anchor = new wxGenericTreeItem(NULL, text,
1654
image, selImage, data);
1657
data->m_pItem = m_anchor;
1660
if (HasFlag(wxTR_HIDE_ROOT))
1662
// if root is hidden, make sure we can navigate
1664
m_anchor->SetHasPlus();
1666
CalculatePositions();
1669
if (!HasFlag(wxTR_MULTIPLE))
1671
m_current = m_key_current = m_anchor;
1672
m_current->SetHilight( true );
1675
InvalidateBestSize();
1679
wxTreeItemId wxGenericTreeCtrl::DoInsertAfter(const wxTreeItemId& parentId,
1680
const wxTreeItemId& idPrevious,
1681
const wxString& text,
1682
int image, int selImage,
1683
wxTreeItemData *data)
1685
wxGenericTreeItem *parent = (wxGenericTreeItem*) parentId.m_pItem;
1688
// should we give a warning here?
1689
return AddRoot(text, image, selImage, data);
1693
if (idPrevious.IsOk())
1695
index = parent->GetChildren().Index(
1696
(wxGenericTreeItem*) idPrevious.m_pItem);
1697
wxASSERT_MSG( index != wxNOT_FOUND,
1698
"previous item in wxGenericTreeCtrl::InsertItem() "
1699
"is not a sibling" );
1702
return DoInsertItem(parentId, (size_t)++index, text, image, selImage, data);
1706
void wxGenericTreeCtrl::SendDeleteEvent(wxGenericTreeItem *item)
1708
wxTreeEvent event(wxEVT_COMMAND_TREE_DELETE_ITEM, this, item);
1709
GetEventHandler()->ProcessEvent( event );
1712
// Don't leave edit or selection on a child which is about to disappear
1713
void wxGenericTreeCtrl::ChildrenClosing(wxGenericTreeItem* item)
1715
if ( m_textCtrl && item != m_textCtrl->item() &&
1716
IsDescendantOf(item, m_textCtrl->item()) )
1718
m_textCtrl->EndEdit( true );
1721
if ( item != m_key_current && IsDescendantOf(item, m_key_current) )
1723
m_key_current = NULL;
1726
if ( IsDescendantOf(item, m_select_me) )
1731
if ( item != m_current && IsDescendantOf(item, m_current) )
1733
m_current->SetHilight( false );
1739
void wxGenericTreeCtrl::DeleteChildren(const wxTreeItemId& itemId)
1741
m_dirty = true; // do this first so stuff below doesn't cause flicker
1743
wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1744
ChildrenClosing(item);
1745
item->DeleteChildren(this);
1746
InvalidateBestSize();
1749
void wxGenericTreeCtrl::Delete(const wxTreeItemId& itemId)
1751
m_dirty = true; // do this first so stuff below doesn't cause flicker
1753
wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1755
if (m_textCtrl != NULL && IsDescendantOf(item, m_textCtrl->item()))
1757
// can't delete the item being edited, cancel editing it first
1758
m_textCtrl->EndEdit( true );
1761
wxGenericTreeItem *parent = item->GetParent();
1763
// if the selected item will be deleted, select the parent ...
1764
wxGenericTreeItem *to_be_selected = parent;
1767
// .. unless there is a next sibling like wxMSW does it
1768
int pos = parent->GetChildren().Index( item );
1769
if ((int)(parent->GetChildren().GetCount()) > pos+1)
1770
to_be_selected = parent->GetChildren().Item( pos+1 );
1773
// don't keep stale pointers around!
1774
if ( IsDescendantOf(item, m_key_current) )
1776
// Don't silently change the selection:
1777
// do it properly in idle time, so event
1778
// handlers get called.
1780
// m_key_current = parent;
1781
m_key_current = NULL;
1784
// m_select_me records whether we need to select
1785
// a different item, in idle time.
1786
if ( m_select_me && IsDescendantOf(item, m_select_me) )
1788
m_select_me = to_be_selected;
1791
if ( IsDescendantOf(item, m_current) )
1793
// Don't silently change the selection:
1794
// do it properly in idle time, so event
1795
// handlers get called.
1797
// m_current = parent;
1799
m_select_me = to_be_selected;
1802
// remove the item from the tree
1805
parent->GetChildren().Remove( item ); // remove by value
1807
else // deleting the root
1809
// nothing will be left in the tree
1813
// and delete all of its children and the item itself now
1814
item->DeleteChildren(this);
1815
SendDeleteEvent(item);
1817
if (item == m_select_me)
1822
InvalidateBestSize();
1825
void wxGenericTreeCtrl::DeleteAllItems()
1833
void wxGenericTreeCtrl::Expand(const wxTreeItemId& itemId)
1835
wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1837
wxCHECK_RET( item, wxT("invalid item in wxGenericTreeCtrl::Expand") );
1838
wxCHECK_RET( !HasFlag(wxTR_HIDE_ROOT) || itemId != GetRootItem(),
1839
wxT("can't expand hidden root") );
1841
if ( !item->HasPlus() )
1844
if ( item->IsExpanded() )
1847
wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_EXPANDING, this, item);
1849
if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() )
1851
// cancelled by program
1858
CalculatePositions();
1860
RefreshSubtree(item);
1867
event.SetEventType(wxEVT_COMMAND_TREE_ITEM_EXPANDED);
1868
GetEventHandler()->ProcessEvent( event );
1871
void wxGenericTreeCtrl::Collapse(const wxTreeItemId& itemId)
1873
wxCHECK_RET( !HasFlag(wxTR_HIDE_ROOT) || itemId != GetRootItem(),
1874
wxT("can't collapse hidden root") );
1876
wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1878
if ( !item->IsExpanded() )
1881
wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_COLLAPSING, this, item);
1882
if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() )
1884
// cancelled by program
1888
ChildrenClosing(item);
1891
#if 0 // TODO why should items be collapsed recursively?
1892
wxArrayGenericTreeItems& children = item->GetChildren();
1893
size_t count = children.GetCount();
1894
for ( size_t n = 0; n < count; n++ )
1896
Collapse(children[n]);
1900
CalculatePositions();
1902
RefreshSubtree(item);
1904
event.SetEventType(wxEVT_COMMAND_TREE_ITEM_COLLAPSED);
1905
GetEventHandler()->ProcessEvent( event );
1908
void wxGenericTreeCtrl::CollapseAndReset(const wxTreeItemId& item)
1911
DeleteChildren(item);
1914
void wxGenericTreeCtrl::Toggle(const wxTreeItemId& itemId)
1916
wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
1918
if (item->IsExpanded())
1924
void wxGenericTreeCtrl::Unselect()
1928
m_current->SetHilight( false );
1929
RefreshLine( m_current );
1936
void wxGenericTreeCtrl::ClearFocusedItem()
1938
wxTreeItemId item = GetFocusedItem();
1940
SelectItem(item, false);
1943
void wxGenericTreeCtrl::SetFocusedItem(const wxTreeItemId& item)
1945
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
1947
SelectItem(item, true);
1950
void wxGenericTreeCtrl::UnselectAllChildren(wxGenericTreeItem *item)
1952
if (item->IsSelected())
1954
item->SetHilight(false);
1958
if (item->HasChildren())
1960
wxArrayGenericTreeItems& children = item->GetChildren();
1961
size_t count = children.GetCount();
1962
for ( size_t n = 0; n < count; ++n )
1964
UnselectAllChildren(children[n]);
1969
void wxGenericTreeCtrl::UnselectAll()
1971
wxTreeItemId rootItem = GetRootItem();
1973
// the tree might not have the root item at all
1976
UnselectAllChildren((wxGenericTreeItem*) rootItem.m_pItem);
1980
void wxGenericTreeCtrl::SelectChildren(const wxTreeItemId& parent)
1982
wxCHECK_RET( HasFlag(wxTR_MULTIPLE),
1983
"this only works with multiple selection controls" );
1987
if ( !HasChildren(parent) )
1991
wxArrayGenericTreeItems&
1992
children = ((wxGenericTreeItem*) parent.m_pItem)->GetChildren();
1993
size_t count = children.GetCount();
1996
item = (wxGenericTreeItem*) ((wxTreeItemId)children[0]).m_pItem;
1997
wxTreeEvent event(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item);
1998
event.m_itemOld = m_current;
2000
if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() )
2003
for ( size_t n = 0; n < count; ++n )
2005
m_current = m_key_current = children[n];
2006
m_current->SetHilight(true);
2011
event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
2012
GetEventHandler()->ProcessEvent( event );
2016
// Recursive function !
2017
// To stop we must have crt_item<last_item
2019
// Tag all next children, when no more children,
2020
// Move to parent (not to tag)
2021
// Keep going... if we found last_item, we stop.
2023
wxGenericTreeCtrl::TagNextChildren(wxGenericTreeItem *crt_item,
2024
wxGenericTreeItem *last_item,
2027
wxGenericTreeItem *parent = crt_item->GetParent();
2029
if (parent == NULL) // This is root item
2030
return TagAllChildrenUntilLast(crt_item, last_item, select);
2032
wxArrayGenericTreeItems& children = parent->GetChildren();
2033
int index = children.Index(crt_item);
2034
wxASSERT( index != wxNOT_FOUND ); // I'm not a child of my parent?
2036
size_t count = children.GetCount();
2037
for (size_t n=(size_t)(index+1); n<count; ++n)
2039
if ( TagAllChildrenUntilLast(children[n], last_item, select) )
2043
return TagNextChildren(parent, last_item, select);
2047
wxGenericTreeCtrl::TagAllChildrenUntilLast(wxGenericTreeItem *crt_item,
2048
wxGenericTreeItem *last_item,
2051
crt_item->SetHilight(select);
2052
RefreshLine(crt_item);
2054
if (crt_item==last_item)
2057
// We should leave the not shown children of collapsed items alone.
2058
if (crt_item->HasChildren() && crt_item->IsExpanded())
2060
wxArrayGenericTreeItems& children = crt_item->GetChildren();
2061
size_t count = children.GetCount();
2062
for ( size_t n = 0; n < count; ++n )
2064
if (TagAllChildrenUntilLast(children[n], last_item, select))
2073
wxGenericTreeCtrl::SelectItemRange(wxGenericTreeItem *item1,
2074
wxGenericTreeItem *item2)
2078
// item2 is not necessary after item1
2079
// choice first' and 'last' between item1 and item2
2080
wxGenericTreeItem *first= (item1->GetY()<item2->GetY()) ? item1 : item2;
2081
wxGenericTreeItem *last = (item1->GetY()<item2->GetY()) ? item2 : item1;
2083
bool select = m_current->IsSelected();
2085
if ( TagAllChildrenUntilLast(first,last,select) )
2088
TagNextChildren(first,last,select);
2091
void wxGenericTreeCtrl::DoSelectItem(const wxTreeItemId& itemId,
2092
bool unselect_others,
2093
bool extended_select)
2095
wxCHECK_RET( itemId.IsOk(), wxT("invalid tree item") );
2099
bool is_single=!(GetWindowStyleFlag() & wxTR_MULTIPLE);
2100
wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
2102
//wxCHECK_RET( ( (!unselect_others) && is_single),
2103
// wxT("this is a single selection tree") );
2105
// to keep going anyhow !!!
2108
if (item->IsSelected())
2109
return; // nothing to do
2110
unselect_others = true;
2111
extended_select = false;
2113
else if ( unselect_others && item->IsSelected() )
2115
// selection change if there is more than one item currently selected
2116
wxArrayTreeItemIds selected_items;
2117
if ( GetSelections(selected_items) == 1 )
2121
wxTreeEvent event(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item);
2122
event.m_itemOld = m_current;
2123
// TODO : Here we don't send any selection mode yet !
2125
if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() )
2128
wxTreeItemId parent = GetItemParent( itemId );
2129
while (parent.IsOk())
2131
if (!IsExpanded(parent))
2134
parent = GetItemParent( parent );
2138
if (unselect_others)
2140
if (is_single) Unselect(); // to speed up thing
2145
if (extended_select)
2150
m_key_current = (wxGenericTreeItem*) GetRootItem().m_pItem;
2153
// don't change the mark (m_current)
2154
SelectItemRange(m_current, item);
2158
bool select = true; // the default
2160
// Check if we need to toggle hilight (ctrl mode)
2161
if (!unselect_others)
2162
select=!item->IsSelected();
2164
m_current = m_key_current = item;
2165
m_current->SetHilight(select);
2166
RefreshLine( m_current );
2169
// This can cause idle processing to select the root
2170
// if no item is selected, so it must be after the
2172
EnsureVisible( itemId );
2174
event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
2175
GetEventHandler()->ProcessEvent( event );
2178
void wxGenericTreeCtrl::SelectItem(const wxTreeItemId& itemId, bool select)
2180
wxGenericTreeItem * const item = (wxGenericTreeItem*) itemId.m_pItem;
2181
wxCHECK_RET( item, wxT("SelectItem(): invalid tree item") );
2185
if ( !item->IsSelected() )
2186
DoSelectItem(itemId, !HasFlag(wxTR_MULTIPLE));
2190
wxTreeEvent event(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item);
2191
if ( GetEventHandler()->ProcessEvent( event ) && !event.IsAllowed() )
2194
item->SetHilight(false);
2197
event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
2198
GetEventHandler()->ProcessEvent( event );
2202
void wxGenericTreeCtrl::FillArray(wxGenericTreeItem *item,
2203
wxArrayTreeItemIds &array) const
2205
if ( item->IsSelected() )
2206
array.Add(wxTreeItemId(item));
2208
if ( item->HasChildren() )
2210
wxArrayGenericTreeItems& children = item->GetChildren();
2211
size_t count = children.GetCount();
2212
for ( size_t n = 0; n < count; ++n )
2213
FillArray(children[n], array);
2217
size_t wxGenericTreeCtrl::GetSelections(wxArrayTreeItemIds &array) const
2220
wxTreeItemId idRoot = GetRootItem();
2221
if ( idRoot.IsOk() )
2223
FillArray((wxGenericTreeItem*) idRoot.m_pItem, array);
2225
//else: the tree is empty, so no selections
2227
return array.GetCount();
2230
void wxGenericTreeCtrl::EnsureVisible(const wxTreeItemId& item)
2232
wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
2234
if (!item.IsOk()) return;
2236
wxGenericTreeItem *gitem = (wxGenericTreeItem*) item.m_pItem;
2238
// first expand all parent branches
2239
wxGenericTreeItem *parent = gitem->GetParent();
2241
if ( HasFlag(wxTR_HIDE_ROOT) )
2243
while ( parent && parent != m_anchor )
2246
parent = parent->GetParent();
2254
parent = parent->GetParent();
2258
//if (parent) CalculatePositions();
2263
void wxGenericTreeCtrl::ScrollTo(const wxTreeItemId &item)
2268
// update the control before scrolling it
2270
#if defined( __WXMSW__ ) || defined(__WXMAC__)
2273
DoDirtyProcessing();
2276
wxGenericTreeItem *gitem = (wxGenericTreeItem*) item.m_pItem;
2278
int itemY = gitem->GetY();
2282
GetViewStart( &start_x, &start_y );
2284
const int clientHeight = GetClientSize().y;
2286
const int itemHeight = GetLineHeight(gitem) + 2;
2288
if ( itemY + itemHeight > start_y*PIXELS_PER_UNIT + clientHeight )
2290
// need to scroll up by enough to show this item fully
2291
itemY += itemHeight - clientHeight;
2293
else if ( itemY > start_y*PIXELS_PER_UNIT )
2295
// item is already fully visible, don't do anything
2298
//else: scroll down to make this item the top one displayed
2300
Scroll(-1, itemY/PIXELS_PER_UNIT);
2303
// FIXME: tree sorting functions are not reentrant and not MT-safe!
2304
static wxGenericTreeCtrl *s_treeBeingSorted = NULL;
2306
static int LINKAGEMODE tree_ctrl_compare_func(wxGenericTreeItem **item1,
2307
wxGenericTreeItem **item2)
2309
wxCHECK_MSG( s_treeBeingSorted, 0,
2310
"bug in wxGenericTreeCtrl::SortChildren()" );
2312
return s_treeBeingSorted->OnCompareItems(*item1, *item2);
2315
void wxGenericTreeCtrl::SortChildren(const wxTreeItemId& itemId)
2317
wxCHECK_RET( itemId.IsOk(), wxT("invalid tree item") );
2319
wxGenericTreeItem *item = (wxGenericTreeItem*) itemId.m_pItem;
2321
wxCHECK_RET( !s_treeBeingSorted,
2322
wxT("wxGenericTreeCtrl::SortChildren is not reentrant") );
2324
wxArrayGenericTreeItems& children = item->GetChildren();
2325
if ( children.GetCount() > 1 )
2329
s_treeBeingSorted = this;
2330
children.Sort(tree_ctrl_compare_func);
2331
s_treeBeingSorted = NULL;
2333
//else: don't make the tree dirty as nothing changed
2336
void wxGenericTreeCtrl::CalculateLineHeight()
2338
wxClientDC dc(this);
2339
m_lineHeight = (int)(dc.GetCharHeight() + 4);
2341
if ( m_imageListNormal )
2343
// Calculate a m_lineHeight value from the normal Image sizes.
2344
// May be toggle off. Then wxGenericTreeCtrl will spread when
2345
// necessary (which might look ugly).
2346
int n = m_imageListNormal->GetImageCount();
2347
for (int i = 0; i < n ; i++)
2349
int width = 0, height = 0;
2350
m_imageListNormal->GetSize(i, width, height);
2351
if (height > m_lineHeight) m_lineHeight = height;
2355
if ( m_imageListState )
2357
// Calculate a m_lineHeight value from the state Image sizes.
2358
// May be toggle off. Then wxGenericTreeCtrl will spread when
2359
// necessary (which might look ugly).
2360
int n = m_imageListState->GetImageCount();
2361
for (int i = 0; i < n ; i++)
2363
int width = 0, height = 0;
2364
m_imageListState->GetSize(i, width, height);
2365
if (height > m_lineHeight) m_lineHeight = height;
2369
if (m_imageListButtons)
2371
// Calculate a m_lineHeight value from the Button image sizes.
2372
// May be toggle off. Then wxGenericTreeCtrl will spread when
2373
// necessary (which might look ugly).
2374
int n = m_imageListButtons->GetImageCount();
2375
for (int i = 0; i < n ; i++)
2377
int width = 0, height = 0;
2378
m_imageListButtons->GetSize(i, width, height);
2379
if (height > m_lineHeight) m_lineHeight = height;
2383
if (m_lineHeight < 30)
2384
m_lineHeight += 2; // at least 2 pixels
2386
m_lineHeight += m_lineHeight/10; // otherwise 10% extra spacing
2389
void wxGenericTreeCtrl::SetImageList(wxImageList *imageList)
2391
if (m_ownsImageListNormal) delete m_imageListNormal;
2392
m_imageListNormal = imageList;
2393
m_ownsImageListNormal = false;
2397
m_anchor->RecursiveResetSize();
2399
// Don't do any drawing if we're setting the list to NULL,
2400
// since we may be in the process of deleting the tree control.
2402
CalculateLineHeight();
2405
void wxGenericTreeCtrl::SetStateImageList(wxImageList *imageList)
2407
if (m_ownsImageListState) delete m_imageListState;
2408
m_imageListState = imageList;
2409
m_ownsImageListState = false;
2413
m_anchor->RecursiveResetSize();
2415
// Don't do any drawing if we're setting the list to NULL,
2416
// since we may be in the process of deleting the tree control.
2418
CalculateLineHeight();
2421
void wxGenericTreeCtrl::SetButtonsImageList(wxImageList *imageList)
2423
if (m_ownsImageListButtons) delete m_imageListButtons;
2424
m_imageListButtons = imageList;
2425
m_ownsImageListButtons = false;
2429
m_anchor->RecursiveResetSize();
2431
CalculateLineHeight();
2434
void wxGenericTreeCtrl::AssignButtonsImageList(wxImageList *imageList)
2436
SetButtonsImageList(imageList);
2437
m_ownsImageListButtons = true;
2440
// -----------------------------------------------------------------------------
2442
// -----------------------------------------------------------------------------
2444
void wxGenericTreeCtrl::AdjustMyScrollbars()
2449
m_anchor->GetSize( x, y, this );
2450
y += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
2451
x += PIXELS_PER_UNIT+2; // one more scrollbar unit + 2 pixels
2452
int x_pos = GetScrollPos( wxHORIZONTAL );
2453
int y_pos = GetScrollPos( wxVERTICAL );
2454
SetScrollbars( PIXELS_PER_UNIT, PIXELS_PER_UNIT,
2455
x/PIXELS_PER_UNIT, y/PIXELS_PER_UNIT,
2460
SetScrollbars( 0, 0, 0, 0 );
2464
int wxGenericTreeCtrl::GetLineHeight(wxGenericTreeItem *item) const
2466
if (GetWindowStyleFlag() & wxTR_HAS_VARIABLE_ROW_HEIGHT)
2467
return item->GetHeight();
2469
return m_lineHeight;
2472
void wxGenericTreeCtrl::PaintItem(wxGenericTreeItem *item, wxDC& dc)
2474
item->SetFont(this, dc);
2475
item->CalculateSize(this, dc);
2477
wxCoord text_h = item->GetTextHeight();
2479
int image_h = 0, image_w = 0;
2480
int image = item->GetCurrentImage();
2481
if ( image != NO_IMAGE )
2483
if ( m_imageListNormal )
2485
m_imageListNormal->GetSize(image, image_w, image_h);
2486
image_w += MARGIN_BETWEEN_IMAGE_AND_TEXT;
2494
int state_h = 0, state_w = 0;
2495
int state = item->GetState();
2496
if ( state != wxTREE_ITEMSTATE_NONE )
2498
if ( m_imageListState )
2500
m_imageListState->GetSize(state, state_w, state_h);
2502
state_w += MARGIN_BETWEEN_STATE_AND_IMAGE;
2504
state_w += MARGIN_BETWEEN_IMAGE_AND_TEXT;
2508
state = wxTREE_ITEMSTATE_NONE;
2512
int total_h = GetLineHeight(item);
2513
bool drawItemBackground = false,
2514
hasBgColour = false;
2516
if ( item->IsSelected() )
2518
dc.SetBrush(*(m_hasFocus ? m_hilightBrush : m_hilightUnfocusedBrush));
2519
drawItemBackground = true;
2524
wxTreeItemAttr * const attr = item->GetAttributes();
2525
if ( attr && attr->HasBackgroundColour() )
2527
drawItemBackground =
2529
colBg = attr->GetBackgroundColour();
2533
colBg = GetBackgroundColour();
2535
dc.SetBrush(wxBrush(colBg, wxBRUSHSTYLE_SOLID));
2538
int offset = HasFlag(wxTR_ROW_LINES) ? 1 : 0;
2540
if ( HasFlag(wxTR_FULL_ROW_HIGHLIGHT) )
2544
GetVirtualSize(&w, &h);
2545
wxRect rect( x, item->GetY()+offset, w, total_h-offset);
2546
if (!item->IsSelected())
2548
dc.DrawRectangle(rect);
2552
int flags = wxCONTROL_SELECTED;
2554
#if defined( __WXMAC__ ) && !defined(__WXUNIVERSAL__) && wxOSX_USE_CARBON // TODO CS
2555
&& IsControlActive( (ControlRef)GetHandle() )
2558
flags |= wxCONTROL_FOCUSED;
2559
if ((item == m_current) && (m_hasFocus))
2560
flags |= wxCONTROL_CURRENT;
2562
wxRendererNative::Get().
2563
DrawItemSelectionRect(this, dc, rect, flags);
2566
else // no full row highlight
2568
if ( item->IsSelected() &&
2569
(state != wxTREE_ITEMSTATE_NONE || image != NO_IMAGE) )
2571
// If it's selected, and there's an state image or normal image,
2572
// then we should take care to leave the area under the image
2573
// painted in the background colour.
2574
wxRect rect( item->GetX() + state_w + image_w - 2,
2575
item->GetY() + offset,
2576
item->GetWidth() - state_w - image_w + 2,
2578
#if !defined(__WXGTK20__) && !defined(__WXMAC__)
2579
dc.DrawRectangle( rect );
2584
int flags = wxCONTROL_SELECTED;
2586
flags |= wxCONTROL_FOCUSED;
2587
if ((item == m_current) && (m_hasFocus))
2588
flags |= wxCONTROL_CURRENT;
2589
wxRendererNative::Get().
2590
DrawItemSelectionRect(this, dc, rect, flags);
2593
// On GTK+ 2, drawing a 'normal' background is wrong for themes that
2594
// don't allow backgrounds to be customized. Not drawing the background,
2595
// except for custom item backgrounds, works for both kinds of theme.
2596
else if (drawItemBackground)
2598
wxRect rect( item->GetX() + state_w + image_w - 2,
2599
item->GetY() + offset,
2600
item->GetWidth() - state_w - image_w + 2,
2604
dc.DrawRectangle( rect );
2606
else // no specific background colour
2611
int flags = wxCONTROL_SELECTED;
2613
flags |= wxCONTROL_FOCUSED;
2614
if ((item == m_current) && (m_hasFocus))
2615
flags |= wxCONTROL_CURRENT;
2616
wxRendererNative::Get().
2617
DrawItemSelectionRect(this, dc, rect, flags);
2622
if ( state != wxTREE_ITEMSTATE_NONE )
2624
dc.SetClippingRegion( item->GetX(), item->GetY(), state_w, total_h );
2625
m_imageListState->Draw( state, dc,
2628
(total_h > state_h ? (total_h-state_h)/2
2630
wxIMAGELIST_DRAW_TRANSPARENT );
2631
dc.DestroyClippingRegion();
2634
if ( image != NO_IMAGE )
2636
dc.SetClippingRegion(item->GetX() + state_w, item->GetY(),
2638
m_imageListNormal->Draw( image, dc,
2639
item->GetX() + state_w,
2641
(total_h > image_h ? (total_h-image_h)/2
2643
wxIMAGELIST_DRAW_TRANSPARENT );
2644
dc.DestroyClippingRegion();
2647
dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
2648
int extraH = (total_h > text_h) ? (total_h - text_h)/2 : 0;
2649
dc.DrawText( item->GetText(),
2650
(wxCoord)(state_w + image_w + item->GetX()),
2651
(wxCoord)(item->GetY() + extraH));
2653
// restore normal font
2654
dc.SetFont( m_normalFont );
2656
if (item == m_dndEffectItem)
2658
dc.SetPen( *wxBLACK_PEN );
2659
// DnD visual effects
2660
switch (m_dndEffect)
2664
dc.SetBrush(*wxTRANSPARENT_BRUSH);
2665
int w = item->GetWidth() + 2;
2666
int h = total_h + 2;
2667
dc.DrawRectangle( item->GetX() - 1, item->GetY() - 1, w, h);
2672
int x = item->GetX(),
2674
dc.DrawLine( x, y, x + item->GetWidth(), y);
2679
int x = item->GetX(),
2682
dc.DrawLine( x, y, x + item->GetWidth(), y);
2692
wxGenericTreeCtrl::PaintLevel(wxGenericTreeItem *item,
2697
int x = level*m_indent;
2698
if (!HasFlag(wxTR_HIDE_ROOT))
2702
else if (level == 0)
2704
// always expand hidden root
2706
wxArrayGenericTreeItems& children = item->GetChildren();
2707
int count = children.GetCount();
2713
PaintLevel(children[n], dc, 1, y);
2714
} while (++n < count);
2716
if ( !HasFlag(wxTR_NO_LINES) && HasFlag(wxTR_LINES_AT_ROOT)
2719
// draw line down to last child
2720
origY += GetLineHeight(children[0])>>1;
2721
oldY += GetLineHeight(children[n-1])>>1;
2722
dc.DrawLine(3, origY, 3, oldY);
2728
item->SetX(x+m_spacing);
2731
int h = GetLineHeight(item);
2733
int y_mid = y_top + (h>>1);
2736
int exposed_x = dc.LogicalToDeviceX(0);
2737
int exposed_y = dc.LogicalToDeviceY(y_top);
2739
if (IsExposed(exposed_x, exposed_y, 10000, h)) // 10000 = very much
2743
// don't draw rect outline if we already have the
2744
// background color under Mac
2745
(item->IsSelected() && m_hasFocus) ? wxBLACK_PEN :
2746
#endif // !__WXMAC__
2750
if ( item->IsSelected()
2751
#if defined( __WXMAC__ ) && !defined(__WXUNIVERSAL__) && wxOSX_USE_CARBON // TODO CS
2752
// On wxMac, if the tree doesn't have the focus we draw an empty
2753
// rectangle, so we want to make sure that the text is visible
2754
// against the normal background, not the highlightbackground, so
2755
// don't use the highlight text colour unless we have the focus.
2756
&& m_hasFocus && IsControlActive( (ControlRef)GetHandle() )
2764
colText = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
2766
colText = wxSystemSettings::GetColour(wxSYS_COLOUR_LISTBOXHIGHLIGHTTEXT);
2771
wxTreeItemAttr *attr = item->GetAttributes();
2772
if (attr && attr->HasTextColour())
2773
colText = attr->GetTextColour();
2775
colText = GetForegroundColour();
2779
dc.SetTextForeground(colText);
2783
PaintItem(item, dc);
2785
if (HasFlag(wxTR_ROW_LINES))
2787
// if the background colour is white, choose a
2788
// contrasting color for the lines
2789
dc.SetPen(*((GetBackgroundColour() == *wxWHITE)
2790
? wxMEDIUM_GREY_PEN : wxWHITE_PEN));
2791
dc.DrawLine(0, y_top, 10000, y_top);
2792
dc.DrawLine(0, y, 10000, y);
2795
// restore DC objects
2796
dc.SetBrush(*wxWHITE_BRUSH);
2797
dc.SetPen(m_dottedPen);
2798
dc.SetTextForeground(*wxBLACK);
2800
if ( !HasFlag(wxTR_NO_LINES) )
2802
// draw the horizontal line here
2804
if (x > (signed)m_indent)
2805
x_start -= m_indent;
2806
else if (HasFlag(wxTR_LINES_AT_ROOT))
2808
dc.DrawLine(x_start, y_mid, x + m_spacing, y_mid);
2811
// should the item show a button?
2812
if ( item->HasPlus() && HasButtons() )
2814
if ( m_imageListButtons )
2816
// draw the image button here
2819
int image = item->IsExpanded() ? wxTreeItemIcon_Expanded
2820
: wxTreeItemIcon_Normal;
2821
if ( item->IsSelected() )
2822
image += wxTreeItemIcon_Selected - wxTreeItemIcon_Normal;
2824
m_imageListButtons->GetSize(image, image_w, image_h);
2825
int xx = x - image_w/2;
2826
int yy = y_mid - image_h/2;
2828
wxDCClipper clip(dc, xx, yy, image_w, image_h);
2829
m_imageListButtons->Draw(image, dc, xx, yy,
2830
wxIMAGELIST_DRAW_TRANSPARENT);
2832
else // no custom buttons
2834
static const int wImage = 9;
2835
static const int hImage = 9;
2838
if (item->IsExpanded())
2839
flag |= wxCONTROL_EXPANDED;
2840
if (item == m_underMouse)
2841
flag |= wxCONTROL_CURRENT;
2843
wxRendererNative::Get().DrawTreeItemButton
2847
wxRect(x - wImage/2,
2856
if (item->IsExpanded())
2858
wxArrayGenericTreeItems& children = item->GetChildren();
2859
int count = children.GetCount();
2866
PaintLevel(children[n], dc, level, y);
2867
} while (++n < count);
2869
if (!HasFlag(wxTR_NO_LINES) && count > 0)
2871
// draw line down to last child
2872
oldY += GetLineHeight(children[n-1])>>1;
2873
if (HasButtons()) y_mid += 5;
2875
// Only draw the portion of the line that is visible, in case
2877
wxCoord xOrigin=0, yOrigin=0, width, height;
2878
dc.GetDeviceOrigin(&xOrigin, &yOrigin);
2879
yOrigin = abs(yOrigin);
2880
GetClientSize(&width, &height);
2882
// Move end points to the beginning/end of the view?
2883
if (y_mid < yOrigin)
2885
if (oldY > yOrigin + height)
2886
oldY = yOrigin + height;
2888
// after the adjustments if y_mid is larger than oldY then the
2889
// line isn't visible at all so don't draw anything
2891
dc.DrawLine(x, y_mid, x, oldY);
2897
void wxGenericTreeCtrl::DrawDropEffect(wxGenericTreeItem *item)
2901
if ( item->HasPlus() )
2903
// it's a folder, indicate it by a border
2908
// draw a line under the drop target because the item will be
2910
DrawLine(item, !m_dropEffectAboveItem );
2913
SetCursor(*wxSTANDARD_CURSOR);
2918
SetCursor(wxCURSOR_NO_ENTRY);
2922
void wxGenericTreeCtrl::DrawBorder(const wxTreeItemId &item)
2924
wxCHECK_RET( item.IsOk(), "invalid item in wxGenericTreeCtrl::DrawLine" );
2926
wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
2928
if (m_dndEffect == NoEffect)
2930
m_dndEffect = BorderEffect;
2931
m_dndEffectItem = i;
2935
m_dndEffect = NoEffect;
2936
m_dndEffectItem = NULL;
2939
wxRect rect( i->GetX()-1, i->GetY()-1, i->GetWidth()+2, GetLineHeight(i)+2 );
2940
CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2941
RefreshRect( rect );
2944
void wxGenericTreeCtrl::DrawLine(const wxTreeItemId &item, bool below)
2946
wxCHECK_RET( item.IsOk(), "invalid item in wxGenericTreeCtrl::DrawLine" );
2948
wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
2950
if (m_dndEffect == NoEffect)
2953
m_dndEffect = BelowEffect;
2955
m_dndEffect = AboveEffect;
2956
m_dndEffectItem = i;
2960
m_dndEffect = NoEffect;
2961
m_dndEffectItem = NULL;
2964
wxRect rect( i->GetX()-1, i->GetY()-1, i->GetWidth()+2, GetLineHeight(i)+2 );
2965
CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
2966
RefreshRect( rect );
2969
// -----------------------------------------------------------------------------
2970
// wxWidgets callbacks
2971
// -----------------------------------------------------------------------------
2973
void wxGenericTreeCtrl::OnSize( wxSizeEvent &event )
2976
if (HasFlag( wxTR_FULL_ROW_HIGHLIGHT) && m_current)
2977
RefreshLine( m_current );
2983
void wxGenericTreeCtrl::OnPaint( wxPaintEvent &WXUNUSED(event) )
2991
dc.SetFont( m_normalFont );
2992
dc.SetPen( m_dottedPen );
2994
// this is now done dynamically
2995
//if(GetImageList() == NULL)
2996
// m_lineHeight = (int)(dc.GetCharHeight() + 4);
2999
PaintLevel( m_anchor, dc, 0, y );
3002
void wxGenericTreeCtrl::OnSetFocus( wxFocusEvent &event )
3011
void wxGenericTreeCtrl::OnKillFocus( wxFocusEvent &event )
3020
void wxGenericTreeCtrl::OnKeyDown( wxKeyEvent &event )
3022
// send a tree event
3023
wxTreeEvent te( wxEVT_COMMAND_TREE_KEY_DOWN, this);
3024
te.m_evtKey = event;
3025
if ( GetEventHandler()->ProcessEvent( te ) )
3031
void wxGenericTreeCtrl::OnChar( wxKeyEvent &event )
3033
if ( (m_current == 0) || (m_key_current == 0) )
3039
// how should the selection work for this event?
3040
bool is_multiple, extended_select, unselect_others;
3041
EventFlagsToSelType(GetWindowStyleFlag(),
3044
is_multiple, extended_select, unselect_others);
3046
if (GetLayoutDirection() == wxLayout_RightToLeft)
3048
if (event.GetKeyCode() == WXK_RIGHT)
3049
event.m_keyCode = WXK_LEFT;
3050
else if (event.GetKeyCode() == WXK_LEFT)
3051
event.m_keyCode = WXK_RIGHT;
3056
// * : Expand all/Collapse all
3057
// ' ' | return : activate
3058
// up : go up (not last children!)
3060
// left : go to parent
3061
// right : open if parent and go next
3062
// home : go to root
3063
// end : go to last item without opening parents
3064
// alnum : start or continue searching for the item with this prefix
3065
int keyCode = event.GetKeyCode();
3068
// Make the keys work as they do in the native control:
3070
// left => collapse if current item is expanded
3071
if (keyCode == WXK_RIGHT)
3075
else if (keyCode == WXK_LEFT && IsExpanded(m_current))
3085
if (m_current->HasPlus() && !IsExpanded(m_current))
3093
if ( !IsExpanded(m_current) )
3096
ExpandAllChildren(m_current);
3099
//else: fall through to Collapse() it
3103
if (IsExpanded(m_current))
3105
Collapse(m_current);
3111
// Use the item's bounding rectangle to determine position for
3114
GetBoundingRect(m_current, ItemRect, true);
3117
eventMenu(wxEVT_COMMAND_TREE_ITEM_MENU, this, m_current);
3118
// Use the left edge, vertical middle
3119
eventMenu.m_pointDrag = wxPoint(ItemRect.GetX(),
3121
ItemRect.GetHeight() / 2);
3122
GetEventHandler()->ProcessEvent( eventMenu );
3128
if ( !event.HasModifiers() )
3131
eventAct(wxEVT_COMMAND_TREE_ITEM_ACTIVATED, this, m_current);
3132
GetEventHandler()->ProcessEvent( eventAct );
3135
// in any case, also generate the normal key event for this key,
3136
// even if we generated the ACTIVATED event above: this is what
3137
// wxMSW does and it makes sense because you might not want to
3138
// process ACTIVATED event at all and handle Space and Return
3139
// directly (and differently) which would be impossible otherwise
3143
// up goes to the previous sibling or to the last
3144
// of its children if it's expanded
3147
wxTreeItemId prev = GetPrevSibling( m_key_current );
3150
prev = GetItemParent( m_key_current );
3151
if ((prev == GetRootItem()) && HasFlag(wxTR_HIDE_ROOT))
3153
break; // don't go to root if it is hidden
3157
wxTreeItemIdValue cookie;
3158
wxTreeItemId current = m_key_current;
3159
// TODO: Huh? If we get here, we'd better be the first
3160
// child of our parent. How else could it be?
3161
if (current == GetFirstChild( prev, cookie ))
3163
// otherwise we return to where we came from
3167
m_key_current = (wxGenericTreeItem*) prev.m_pItem;
3174
while ( IsExpanded(prev) && HasChildren(prev) )
3176
wxTreeItemId child = GetLastChild(prev);
3183
DoSelectItem( prev, unselect_others, extended_select );
3184
m_key_current=(wxGenericTreeItem*) prev.m_pItem;
3189
// left arrow goes to the parent
3192
wxTreeItemId prev = GetItemParent( m_current );
3193
if ((prev == GetRootItem()) && HasFlag(wxTR_HIDE_ROOT))
3195
// don't go to root if it is hidden
3196
prev = GetPrevSibling( m_current );
3200
DoSelectItem( prev, unselect_others, extended_select );
3206
// this works the same as the down arrow except that we
3207
// also expand the item if it wasn't expanded yet
3208
if (m_current != GetRootItem().m_pItem || !HasFlag(wxTR_HIDE_ROOT))
3210
//else: don't try to expand hidden root item (which can be the
3211
// current one when the tree is empty)
3217
if (IsExpanded(m_key_current) && HasChildren(m_key_current))
3219
wxTreeItemIdValue cookie;
3220
wxTreeItemId child = GetFirstChild( m_key_current, cookie );
3224
DoSelectItem( child, unselect_others, extended_select );
3225
m_key_current=(wxGenericTreeItem*) child.m_pItem;
3229
wxTreeItemId next = GetNextSibling( m_key_current );
3232
wxTreeItemId current = m_key_current;
3233
while (current.IsOk() && !next)
3235
current = GetItemParent( current );
3236
if (current) next = GetNextSibling( current );
3241
DoSelectItem( next, unselect_others, extended_select );
3242
m_key_current=(wxGenericTreeItem*) next.m_pItem;
3248
// <End> selects the last visible tree item
3251
wxTreeItemId last = GetRootItem();
3253
while ( last.IsOk() && IsExpanded(last) )
3255
wxTreeItemId lastChild = GetLastChild(last);
3257
// it may happen if the item was expanded but then all of
3258
// its children have been deleted - so IsExpanded() returned
3259
// true, but GetLastChild() returned invalid item
3268
DoSelectItem( last, unselect_others, extended_select );
3273
// <Home> selects the root item
3276
wxTreeItemId prev = GetRootItem();
3280
if ( HasFlag(wxTR_HIDE_ROOT) )
3282
wxTreeItemIdValue cookie;
3283
prev = GetFirstChild(prev, cookie);
3288
DoSelectItem( prev, unselect_others, extended_select );
3293
// do not use wxIsalnum() here
3294
if ( !event.HasModifiers() &&
3295
((keyCode >= '0' && keyCode <= '9') ||
3296
(keyCode >= 'a' && keyCode <= 'z') ||
3297
(keyCode >= 'A' && keyCode <= 'Z' )))
3299
// find the next item starting with the given prefix
3300
wxChar ch = (wxChar)keyCode;
3302
wxTreeItemId id = FindItem(m_current, m_findPrefix + ch);
3313
// also start the timer to reset the current prefix if the user
3314
// doesn't press any more alnum keys soon -- we wouldn't want
3315
// to use this prefix for a new item search
3318
m_findTimer = new wxTreeFindTimer(this);
3321
m_findTimer->Start(wxTreeFindTimer::DELAY, wxTIMER_ONE_SHOT);
3331
wxGenericTreeCtrl::DoTreeHitTest(const wxPoint& point, int& flags) const
3336
if (point.x<0) flags |= wxTREE_HITTEST_TOLEFT;
3337
if (point.x>w) flags |= wxTREE_HITTEST_TORIGHT;
3338
if (point.y<0) flags |= wxTREE_HITTEST_ABOVE;
3339
if (point.y>h) flags |= wxTREE_HITTEST_BELOW;
3340
if (flags) return wxTreeItemId();
3342
if (m_anchor == NULL)
3344
flags = wxTREE_HITTEST_NOWHERE;
3345
return wxTreeItemId();
3348
wxGenericTreeItem *hit = m_anchor->HitTest(CalcUnscrolledPosition(point),
3352
flags = wxTREE_HITTEST_NOWHERE;
3353
return wxTreeItemId();
3358
// get the bounding rectangle of the item (or of its label only)
3359
bool wxGenericTreeCtrl::GetBoundingRect(const wxTreeItemId& item,
3361
bool textOnly) const
3363
wxCHECK_MSG( item.IsOk(), false,
3364
"invalid item in wxGenericTreeCtrl::GetBoundingRect" );
3366
wxGenericTreeItem *i = (wxGenericTreeItem*) item.m_pItem;
3370
int image_h = 0, image_w = 0;
3371
int image = ((wxGenericTreeItem*) item.m_pItem)->GetCurrentImage();
3372
if ( image != NO_IMAGE && m_imageListNormal )
3374
m_imageListNormal->GetSize( image, image_w, image_h );
3375
image_w += MARGIN_BETWEEN_IMAGE_AND_TEXT;
3378
int state_h = 0, state_w = 0;
3379
int state = ((wxGenericTreeItem*) item.m_pItem)->GetState();
3380
if ( state != wxTREE_ITEMSTATE_NONE && m_imageListState )
3382
m_imageListState->GetSize( state, state_w, state_h );
3384
state_w += MARGIN_BETWEEN_STATE_AND_IMAGE;
3386
state_w += MARGIN_BETWEEN_IMAGE_AND_TEXT;
3389
rect.x = i->GetX() + state_w + image_w;
3390
rect.width = i->GetWidth() - state_w - image_w;
3393
else // the entire line
3396
rect.width = GetClientSize().x;
3400
rect.height = GetLineHeight(i);
3402
// we have to return the logical coordinates, not physical ones
3403
rect.SetTopLeft(CalcScrolledPosition(rect.GetTopLeft()));
3408
wxTextCtrl *wxGenericTreeCtrl::EditLabel(const wxTreeItemId& item,
3409
wxClassInfo * WXUNUSED(textCtrlClass))
3411
wxCHECK_MSG( item.IsOk(), NULL, wxT("can't edit an invalid item") );
3413
wxGenericTreeItem *itemEdit = (wxGenericTreeItem *)item.m_pItem;
3415
wxTreeEvent te(wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, this, itemEdit);
3416
if ( GetEventHandler()->ProcessEvent( te ) && !te.IsAllowed() )
3422
// We have to call this here because the label in
3423
// question might just have been added and no screen
3424
// update taken place.
3426
#if defined( __WXMSW__ ) || defined(__WXMAC__)
3429
DoDirtyProcessing();
3432
// TODO: use textCtrlClass here to create the control of correct class
3433
m_textCtrl = new wxTreeTextCtrl(this, itemEdit);
3435
m_textCtrl->SetFocus();
3440
// returns a pointer to the text edit control if the item is being
3441
// edited, NULL otherwise (it's assumed that no more than one item may
3442
// be edited simultaneously)
3443
wxTextCtrl* wxGenericTreeCtrl::GetEditControl() const
3448
void wxGenericTreeCtrl::EndEditLabel(const wxTreeItemId& WXUNUSED(item),
3449
bool discardChanges)
3451
wxCHECK_RET( m_textCtrl, wxT("not editing label") );
3453
m_textCtrl->EndEdit(discardChanges);
3456
bool wxGenericTreeCtrl::OnRenameAccept(wxGenericTreeItem *item,
3457
const wxString& value)
3459
wxTreeEvent le(wxEVT_COMMAND_TREE_END_LABEL_EDIT, this, item);
3461
le.m_editCancelled = false;
3463
return !GetEventHandler()->ProcessEvent( le ) || le.IsAllowed();
3466
void wxGenericTreeCtrl::OnRenameCancelled(wxGenericTreeItem *item)
3468
// let owner know that the edit was cancelled
3469
wxTreeEvent le(wxEVT_COMMAND_TREE_END_LABEL_EDIT, this, item);
3470
le.m_label = wxEmptyString;
3471
le.m_editCancelled = true;
3473
GetEventHandler()->ProcessEvent( le );
3476
void wxGenericTreeCtrl::OnRenameTimer()
3478
EditLabel( m_current );
3481
void wxGenericTreeCtrl::OnMouse( wxMouseEvent &event )
3483
if ( !m_anchor )return;
3485
wxPoint pt = CalcUnscrolledPosition(event.GetPosition());
3487
// Is the mouse over a tree item button?
3489
wxGenericTreeItem *thisItem = m_anchor->HitTest(pt, this, flags, 0);
3490
wxGenericTreeItem *underMouse = thisItem;
3492
bool underMouseChanged = (underMouse != m_underMouse) ;
3493
#endif // wxUSE_TOOLTIPS
3496
(flags & wxTREE_HITTEST_ONITEMBUTTON) &&
3497
(!event.LeftIsDown()) &&
3499
(!m_renameTimer || !m_renameTimer->IsRunning()))
3507
if (underMouse != m_underMouse)
3511
// unhighlight old item
3512
wxGenericTreeItem *tmp = m_underMouse;
3513
m_underMouse = NULL;
3517
m_underMouse = underMouse;
3519
RefreshLine( m_underMouse );
3523
// Determines what item we are hovering over and need a tooltip for
3524
wxTreeItemId hoverItem = thisItem;
3526
// We do not want a tooltip if we are dragging, or if the rename timer is
3528
if ( underMouseChanged &&
3531
(!m_renameTimer || !m_renameTimer->IsRunning()) )
3533
// Ask the tree control what tooltip (if any) should be shown
3535
hevent(wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP, this, hoverItem);
3537
if ( GetEventHandler()->ProcessEvent(hevent) && hevent.IsAllowed() )
3539
SetToolTip(hevent.m_label);
3544
// we process left mouse up event (enables in-place edit), middle/right down
3545
// (pass to the user code), left dbl click (activate item) and
3546
// dragging/moving events for items drag-and-drop
3547
if ( !(event.LeftDown() ||
3549
event.MiddleDown() ||
3550
event.RightDown() ||
3551
event.LeftDClick() ||
3553
((event.Moving() || event.RightUp()) && m_isDragging)) )
3562
wxGenericTreeItem *item = m_anchor->HitTest(pt, this, flags, 0);
3564
if ( event.Dragging() && !m_isDragging )
3566
if (m_dragCount == 0)
3571
if (m_dragCount != 3)
3573
// wait until user drags a bit further...
3577
wxEventType command = event.RightIsDown()
3578
? wxEVT_COMMAND_TREE_BEGIN_RDRAG
3579
: wxEVT_COMMAND_TREE_BEGIN_DRAG;
3581
wxTreeEvent nevent(command, this, m_current);
3582
nevent.SetPoint(CalcScrolledPosition(pt));
3584
// by default the dragging is not supported, the user code must
3585
// explicitly allow the event for it to take place
3588
if ( GetEventHandler()->ProcessEvent(nevent) && nevent.IsAllowed() )
3590
// we're going to drag this item
3591
m_isDragging = true;
3593
// remember the old cursor because we will change it while
3595
m_oldCursor = m_cursor;
3597
// in a single selection control, hide the selection temporarily
3598
if ( !(GetWindowStyleFlag() & wxTR_MULTIPLE) )
3600
m_oldSelection = (wxGenericTreeItem*) GetSelection().m_pItem;
3602
if ( m_oldSelection )
3604
m_oldSelection->SetHilight(false);
3605
RefreshLine(m_oldSelection);
3612
else if ( event.Dragging() )
3614
if ( item != m_dropTarget )
3616
// unhighlight the previous drop target
3617
DrawDropEffect(m_dropTarget);
3619
m_dropTarget = item;
3621
// highlight the current drop target if any
3622
DrawDropEffect(m_dropTarget);
3624
#if defined(__WXMSW__) || defined(__WXMAC__) || defined(__WXGTK20__)
3627
// TODO: remove this call or use wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI)
3628
// instead (needs to be tested!)
3633
else if ( (event.LeftUp() || event.RightUp()) && m_isDragging )
3637
// erase the highlighting
3638
DrawDropEffect(m_dropTarget);
3640
if ( m_oldSelection )
3642
m_oldSelection->SetHilight(true);
3643
RefreshLine(m_oldSelection);
3644
m_oldSelection = NULL;
3647
// generate the drag end event
3648
wxTreeEvent eventEndDrag(wxEVT_COMMAND_TREE_END_DRAG, this, item);
3650
eventEndDrag.m_pointDrag = CalcScrolledPosition(pt);
3652
(void)GetEventHandler()->ProcessEvent(eventEndDrag);
3654
m_isDragging = false;
3655
m_dropTarget = NULL;
3657
SetCursor(m_oldCursor);
3659
#if defined( __WXMSW__ ) || defined(__WXMAC__) || defined(__WXGTK20__)
3662
// TODO: remove this call or use wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI)
3663
// instead (needs to be tested!)
3669
// If we got to this point, we are not dragging or moving the mouse.
3670
// Because the code in carbon/toplevel.cpp will only set focus to the
3671
// tree if we skip for EVT_LEFT_DOWN, we MUST skip this event here for
3673
// We skip even if we didn't hit an item because we still should
3674
// restore focus to the tree control even if we didn't exactly hit an
3676
if ( event.LeftDown() )
3681
// here we process only the messages which happen on tree items
3685
if (item == NULL) return; /* we hit the blank area */
3687
if ( event.RightDown() )
3689
// If the item is already selected, do not update the selection.
3690
// Multi-selections should not be cleared if a selected item is
3692
if (!IsSelected(item))
3694
DoSelectItem(item, true, false);
3698
nevent(wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK, this, item);
3699
nevent.m_pointDrag = CalcScrolledPosition(pt);
3700
event.Skip(!GetEventHandler()->ProcessEvent(nevent));
3702
// Consistent with MSW (for now), send the ITEM_MENU *after*
3703
// the RIGHT_CLICK event. TODO: This behaviour may change.
3704
wxTreeEvent nevent2(wxEVT_COMMAND_TREE_ITEM_MENU, this, item);
3705
nevent2.m_pointDrag = CalcScrolledPosition(pt);
3706
GetEventHandler()->ProcessEvent(nevent2);
3708
else if ( event.MiddleDown() )
3711
nevent(wxEVT_COMMAND_TREE_ITEM_MIDDLE_CLICK, this, item);
3712
nevent.m_pointDrag = CalcScrolledPosition(pt);
3713
event.Skip(!GetEventHandler()->ProcessEvent(nevent));
3715
else if ( event.LeftUp() )
3717
if (flags & wxTREE_HITTEST_ONITEMSTATEICON)
3720
nevent(wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK, this, item);
3721
GetEventHandler()->ProcessEvent(nevent);
3724
// this facilitates multiple-item drag-and-drop
3726
if ( /* item && */ HasFlag(wxTR_MULTIPLE))
3728
wxArrayTreeItemIds selections;
3729
size_t count = GetSelections(selections);
3735
DoSelectItem(item, true, false);
3741
if ( (item == m_current) &&
3742
(flags & wxTREE_HITTEST_ONITEMLABEL) &&
3743
HasFlag(wxTR_EDIT_LABELS) )
3745
if ( m_renameTimer )
3747
if ( m_renameTimer->IsRunning() )
3748
m_renameTimer->Stop();
3752
m_renameTimer = new wxTreeRenameTimer( this );
3755
m_renameTimer->Start( wxTreeRenameTimer::DELAY, true );
3758
m_lastOnSame = false;
3761
else // !RightDown() && !MiddleDown() && !LeftUp()
3763
// ==> LeftDown() || LeftDClick()
3764
if ( event.LeftDown() )
3766
m_lastOnSame = item == m_current;
3769
if ( flags & wxTREE_HITTEST_ONITEMBUTTON )
3771
// only toggle the item for a single click, double click on
3772
// the button doesn't do anything (it toggles the item twice)
3773
if ( event.LeftDown() )
3778
// don't select the item if the button was clicked
3783
// clear the previously selected items, if the
3784
// user clicked outside of the present selection.
3785
// otherwise, perform the deselection on mouse-up.
3786
// this allows multiple drag and drop to work.
3787
// but if Cmd is down, toggle selection of the clicked item
3788
if (!IsSelected(item) || event.CmdDown())
3790
// how should the selection work for this event?
3791
bool is_multiple, extended_select, unselect_others;
3792
EventFlagsToSelType(GetWindowStyleFlag(),
3799
DoSelectItem(item, unselect_others, extended_select);
3803
// For some reason, Windows isn't recognizing a left double-click,
3804
// so we need to simulate it here. Allow 200 milliseconds for now.
3805
if ( event.LeftDClick() )
3807
// double clicking should not start editing the item label
3808
if ( m_renameTimer )
3809
m_renameTimer->Stop();
3811
m_lastOnSame = false;
3813
// send activate event first
3815
nevent(wxEVT_COMMAND_TREE_ITEM_ACTIVATED, this, item);
3816
nevent.m_pointDrag = CalcScrolledPosition(pt);
3817
if ( !GetEventHandler()->ProcessEvent( nevent ) )
3819
// if the user code didn't process the activate event,
3820
// handle it ourselves by toggling the item when it is
3822
if ( item->HasPlus() )
3832
void wxGenericTreeCtrl::OnInternalIdle()
3834
wxWindow::OnInternalIdle();
3836
// Check if we need to select the root item
3837
// because nothing else has been selected.
3838
// Delaying it means that we can invoke event handlers
3839
// as required, when a first item is selected.
3840
if (!HasFlag(wxTR_MULTIPLE) && !GetSelection().IsOk())
3843
SelectItem(m_select_me);
3844
else if (GetRootItem().IsOk())
3845
SelectItem(GetRootItem());
3848
// after all changes have been done to the tree control,
3849
// actually redraw the tree when everything is over
3851
DoDirtyProcessing();
3855
wxGenericTreeCtrl::CalculateLevel(wxGenericTreeItem *item,
3860
int x = level*m_indent;
3861
if (!HasFlag(wxTR_HIDE_ROOT))
3865
else if (level == 0)
3867
// a hidden root is not evaluated, but its
3868
// children are always calculated
3872
item->CalculateSize(this, dc);
3875
item->SetX( x+m_spacing );
3877
y += GetLineHeight(item);
3879
if ( !item->IsExpanded() )
3881
// we don't need to calculate collapsed branches
3886
wxArrayGenericTreeItems& children = item->GetChildren();
3887
size_t n, count = children.GetCount();
3889
for (n = 0; n < count; ++n )
3890
CalculateLevel( children[n], dc, level, y ); // recurse
3893
void wxGenericTreeCtrl::CalculatePositions()
3895
if ( !m_anchor ) return;
3897
wxClientDC dc(this);
3900
dc.SetFont( m_normalFont );
3902
dc.SetPen( m_dottedPen );
3903
//if(GetImageList() == NULL)
3904
// m_lineHeight = (int)(dc.GetCharHeight() + 4);
3907
CalculateLevel( m_anchor, dc, 0, y ); // start recursion
3910
void wxGenericTreeCtrl::Refresh(bool eraseBackground, const wxRect *rect)
3913
wxTreeCtrlBase::Refresh(eraseBackground, rect);
3916
void wxGenericTreeCtrl::RefreshSubtree(wxGenericTreeItem *item)
3918
if (m_dirty || IsFrozen() )
3921
wxSize client = GetClientSize();
3924
CalcScrolledPosition(0, item->GetY(), NULL, &rect.y);
3925
rect.width = client.x;
3926
rect.height = client.y;
3928
Refresh(true, &rect);
3930
AdjustMyScrollbars();
3933
void wxGenericTreeCtrl::RefreshLine( wxGenericTreeItem *item )
3935
if (m_dirty || IsFrozen() )
3939
CalcScrolledPosition(0, item->GetY(), NULL, &rect.y);
3940
rect.width = GetClientSize().x;
3941
rect.height = GetLineHeight(item); //dc.GetCharHeight() + 6;
3943
Refresh(true, &rect);
3946
void wxGenericTreeCtrl::RefreshSelected()
3951
// TODO: this is awfully inefficient, we should keep the list of all
3952
// selected items internally, should be much faster
3954
RefreshSelectedUnder(m_anchor);
3957
void wxGenericTreeCtrl::RefreshSelectedUnder(wxGenericTreeItem *item)
3962
if ( item->IsSelected() )
3965
const wxArrayGenericTreeItems& children = item->GetChildren();
3966
size_t count = children.GetCount();
3967
for ( size_t n = 0; n < count; n++ )
3969
RefreshSelectedUnder(children[n]);
3973
void wxGenericTreeCtrl::DoThaw()
3975
wxTreeCtrlBase::DoThaw();
3978
DoDirtyProcessing();
3983
// ----------------------------------------------------------------------------
3984
// changing colours: we need to refresh the tree control
3985
// ----------------------------------------------------------------------------
3987
bool wxGenericTreeCtrl::SetBackgroundColour(const wxColour& colour)
3989
if ( !wxWindow::SetBackgroundColour(colour) )
3997
bool wxGenericTreeCtrl::SetForegroundColour(const wxColour& colour)
3999
if ( !wxWindow::SetForegroundColour(colour) )
4007
// Process the tooltip event, to speed up event processing.
4008
// Doesn't actually get a tooltip.
4009
void wxGenericTreeCtrl::OnGetToolTip( wxTreeEvent &event )
4015
// NOTE: If using the wxListBox visual attributes works everywhere then this can
4016
// be removed, as well as the #else case below.
4017
#define _USE_VISATTR 0
4022
wxGenericTreeCtrl::GetClassDefaultAttributes(wxWindowVariant variant)
4024
wxGenericTreeCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
4028
// Use the same color scheme as wxListBox
4029
return wxListBox::GetClassDefaultAttributes(variant);
4031
wxVisualAttributes attr;
4032
attr.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_LISTBOXTEXT);
4033
attr.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_LISTBOX);
4034
attr.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
4039
void wxGenericTreeCtrl::DoDirtyProcessing()
4046
CalculatePositions();
4048
AdjustMyScrollbars();
4051
wxSize wxGenericTreeCtrl::DoGetBestSize() const
4053
// make sure all positions are calculated as normally this only done during
4054
// idle time but we need them for base class DoGetBestSize() to return the
4056
wxConstCast(this, wxGenericTreeCtrl)->CalculatePositions();
4058
wxSize size = wxTreeCtrlBase::DoGetBestSize();
4060
// there seems to be an implicit extra border around the items, although
4061
// I'm not really sure where does it come from -- but without this, the
4062
// scrollbars appear in a tree with default/best size
4065
// and the border has to be rounded up to a multiple of PIXELS_PER_UNIT or
4066
// scrollbars still appear
4067
const wxSize& borderSize = GetWindowBorderSize();
4069
int dx = (size.x - borderSize.x) % PIXELS_PER_UNIT;
4071
size.x += PIXELS_PER_UNIT - dx;
4072
int dy = (size.y - borderSize.y) % PIXELS_PER_UNIT;
4074
size.y += PIXELS_PER_UNIT - dy;
4076
// we need to update the cache too as the base class cached its own value
4077
CacheBestSize(size);
4082
#endif // wxUSE_TREECTRL