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// -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
/*
* Copyright (C) 2010 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Mirco Müller <mirco.mueller@canonical.com>
* Authored by: Jay Taoko <jay.taoko@canonical.com>
*/
#include <gdk/gdk.h>
#include <gtk/gtk.h>
#include "Nux/Nux.h"
#include "QuicklistMenuItem.h"
#include <X11/Xlib.h>
static void
OnPropertyChanged (gchar* property,
GValue* value,
QuicklistMenuItem* self);
static void
OnItemActivated (guint timestamp,
QuicklistMenuItem* self);
QuicklistMenuItem::QuicklistMenuItem (DbusmenuMenuitem* item,
NUX_FILE_LINE_DECL) :
View (NUX_FILE_LINE_PARAM)
{
if (item == 0)
{
g_warning ("Invalid DbusmenuMenuitem in file %s at line %s.", G_STRFUNC, G_STRLOC);
}
_name = 0;
_text = 0;
_color = nux::Color (1.0f, 1.0f, 1.0f, 1.0f);
_menuItem = item;
_debug = false;
_item_type = MENUITEM_TYPE_UNKNOWN;
_normalTexture[0] = NULL;
_normalTexture[1] = NULL;
_prelightTexture[0] = NULL;
_prelightTexture[1] = NULL;
if (_menuItem)
{
g_signal_connect (_menuItem,
"property-changed",
G_CALLBACK (OnPropertyChanged),
this);
g_signal_connect (_menuItem,
"item-activated",
G_CALLBACK (OnItemActivated),
this);
}
OnMouseDown.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseDown));
OnMouseUp.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseUp));
OnMouseClick.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseClick));
OnMouseMove.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseMove));
OnMouseDrag.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseDrag));
OnMouseEnter.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseEnter));
OnMouseLeave.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseLeave));
_prelight = false;
}
QuicklistMenuItem::QuicklistMenuItem (DbusmenuMenuitem* item,
bool debug,
NUX_FILE_LINE_DECL) :
View (NUX_FILE_LINE_PARAM)
{
_text = 0;
_color = nux::Color (1.0f, 1.0f, 1.0f, 1.0f);
_menuItem = item;
_debug = debug;
_item_type = MENUITEM_TYPE_UNKNOWN;
_normalTexture[0] = NULL;
_normalTexture[1] = NULL;
_prelightTexture[0] = NULL;
_prelightTexture[1] = NULL;
if (_menuItem)
{
g_signal_connect (_menuItem,
"property-changed",
G_CALLBACK (OnPropertyChanged),
this);
g_signal_connect (_menuItem,
"item-activated",
G_CALLBACK (OnItemActivated),
this);
}
OnMouseDown.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseDown));
OnMouseUp.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseUp));
OnMouseClick.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseClick));
OnMouseMove.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseMove));
OnMouseDrag.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseDrag));
OnMouseEnter.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseEnter));
OnMouseLeave.connect (sigc::mem_fun (this, &QuicklistMenuItem::RecvMouseLeave));
_prelight = false;
}
QuicklistMenuItem::~QuicklistMenuItem ()
{
if (_name)
g_free (_name);
if (_text)
g_free (_text);
}
QuicklistMenuItemType QuicklistMenuItem::GetItemType ()
{
return _item_type;
}
void
QuicklistMenuItem::PreLayoutManagement ()
{
View::PreLayoutManagement ();
}
long
QuicklistMenuItem::PostLayoutManagement (long layoutResult)
{
long result = View::PostLayoutManagement (layoutResult);
return result;
}
long
QuicklistMenuItem::ProcessEvent (nux::IEvent& event,
long traverseInfo,
long processEventInfo)
{
long result = traverseInfo;
result = nux::View::PostProcessEvent2 (event, result, processEventInfo);
return result;
}
void
QuicklistMenuItem::Draw (nux::GraphicsEngine& gfxContext,
bool forceDraw)
{
}
void
QuicklistMenuItem::DrawContent (nux::GraphicsEngine& gfxContext,
bool forceDraw)
{
}
void
QuicklistMenuItem::PostDraw (nux::GraphicsEngine& gfxContext,
bool forceDraw)
{
}
const gchar*
QuicklistMenuItem::GetLabel ()
{
if (_menuItem == 0)
return 0;
return dbusmenu_menuitem_property_get (_menuItem,
DBUSMENU_MENUITEM_PROP_LABEL);
}
bool
QuicklistMenuItem::GetEnabled ()
{
if (_menuItem == 0)
return false;
return dbusmenu_menuitem_property_get_bool (_menuItem,
DBUSMENU_MENUITEM_PROP_ENABLED);
}
bool
QuicklistMenuItem::GetActive ()
{
if (_menuItem == 0)
return false;
return dbusmenu_menuitem_property_get_int (_menuItem,
DBUSMENU_MENUITEM_PROP_TOGGLE_STATE) == DBUSMENU_MENUITEM_TOGGLE_STATE_CHECKED;
}
bool
QuicklistMenuItem::GetVisible ()
{
if (_menuItem == 0)
return false;
return dbusmenu_menuitem_property_get_bool (_menuItem,
DBUSMENU_MENUITEM_PROP_VISIBLE);
}
void QuicklistMenuItem::ItemActivated ()
{
if (_debug)
sigChanged.emit (*this);
std::cout << "ItemActivated() called" << std::endl;
}
void QuicklistMenuItem::GetTextExtents (int &width, int &height)
{
GtkSettings* settings = gtk_settings_get_default (); // not ref'ed
gchar* fontName = NULL;
g_object_get (settings, "gtk-font-name", &fontName, NULL);
GetTextExtents (fontName, width, height);
g_free (fontName);
}
void QuicklistMenuItem::GetTextExtents (const gchar* font,
int& width,
int& height)
{
cairo_surface_t* surface = NULL;
cairo_t* cr = NULL;
PangoLayout* layout = NULL;
PangoFontDescription* desc = NULL;
PangoContext* pangoCtx = NULL;
PangoRectangle logRect = {0, 0, 0, 0};
int dpi = 0;
GdkScreen* screen = gdk_screen_get_default (); // is not ref'ed
GtkSettings* settings = gtk_settings_get_default (); // is not ref'ed
// sanity check
if (!font)
return;
if (_text == NULL)
return;
surface = cairo_image_surface_create (CAIRO_FORMAT_A1, 1, 1);
cr = cairo_create (surface);
cairo_set_font_options (cr, gdk_screen_get_font_options (screen));
layout = pango_cairo_create_layout (cr);
desc = pango_font_description_from_string (font);
pango_font_description_set_weight (desc, PANGO_WEIGHT_NORMAL);
pango_layout_set_font_description (layout, desc);
pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
pango_layout_set_markup_with_accel (layout, _text, -1, '_', NULL);
pangoCtx = pango_layout_get_context (layout); // is not ref'ed
pango_cairo_context_set_font_options (pangoCtx,
gdk_screen_get_font_options (screen));
g_object_get (settings, "gtk-xft-dpi", &dpi, NULL);
if (dpi == -1)
{
// use some default DPI-value
pango_cairo_context_set_resolution (pangoCtx, 96.0f);
}
else
{
pango_cairo_context_set_resolution (pangoCtx,
(float) dpi / (float) PANGO_SCALE);
}
pango_layout_context_changed (layout);
pango_layout_get_extents (layout, NULL, &logRect);
width = logRect.width / PANGO_SCALE;
height = logRect.height / PANGO_SCALE;
// clean up
pango_font_description_free (desc);
g_object_unref (layout);
cairo_destroy (cr);
cairo_surface_destroy (surface);
}
static void
OnPropertyChanged (gchar* property,
GValue* value,
QuicklistMenuItem* self)
{
//todo
//self->UpdateTexture ();
}
static void
OnItemActivated (guint timestamp,
QuicklistMenuItem* self)
{
//todo:
//self->ItemActivated ();
}
void QuicklistMenuItem::RecvMouseDown (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
}
void QuicklistMenuItem::RecvMouseUp (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
sigMouseReleased.emit (this, x, y);
}
void QuicklistMenuItem::RecvMouseClick (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
if (!GetEnabled ())
{
return;
}
sigMouseClick.emit (this, x, y);
}
void QuicklistMenuItem::RecvMouseMove (int x, int y, int dx, int dy, unsigned long button_flags, unsigned long key_flags)
{
}
void QuicklistMenuItem::RecvMouseDrag (int x, int y, int dx, int dy, unsigned long button_flags, unsigned long key_flags)
{
sigMouseDrag.emit (this, x, y);
}
void QuicklistMenuItem::RecvMouseEnter (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
_prelight = true;
sigMouseEnter.emit (this);
}
void QuicklistMenuItem::RecvMouseLeave (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
_prelight = false;
sigMouseLeave.emit (this);
}
void
QuicklistMenuItem::DrawRoundedRectangle (cairo_t* cr,
double aspect,
double x,
double y,
double cornerRadius,
double width,
double height)
{
double radius = cornerRadius / aspect;
// top-left, right of the corner
cairo_move_to (cr, x + radius, y);
// top-right, left of the corner
cairo_line_to (cr, x + width - radius, y);
// top-right, below the corner
cairo_arc (cr,
x + width - radius,
y + radius,
radius,
-90.0f * G_PI / 180.0f,
0.0f * G_PI / 180.0f);
// bottom-right, above the corner
cairo_line_to (cr, x + width, y + height - radius);
// bottom-right, left of the corner
cairo_arc (cr,
x + width - radius,
y + height - radius,
radius,
0.0f * G_PI / 180.0f,
90.0f * G_PI / 180.0f);
// bottom-left, right of the corner
cairo_line_to (cr, x + radius, y + height);
// bottom-left, above the corner
cairo_arc (cr,
x + radius,
y + height - radius,
radius,
90.0f * G_PI / 180.0f,
180.0f * G_PI / 180.0f);
// top-left, right of the corner
cairo_arc (cr,
x + radius,
y + radius,
radius,
180.0f * G_PI / 180.0f,
270.0f * G_PI / 180.0f);
}
void
QuicklistMenuItem::DrawText (cairo_t* cr,
int width,
int height,
nux::Color color)
{
if (_text == NULL)
return;
int textWidth = 0;
int textHeight = 0;
PangoLayout* layout = NULL;
PangoFontDescription* desc = NULL;
PangoContext* pangoCtx = NULL;
int dpi = 0;
GdkScreen* screen = gdk_screen_get_default (); // not ref'ed
GtkSettings* settings = gtk_settings_get_default (); // not ref'ed
gchar* fontName = NULL;
g_object_get (settings, "gtk-font-name", &fontName, NULL);
GetTextExtents (fontName, textWidth, textHeight);
cairo_set_font_options (cr, gdk_screen_get_font_options (screen));
layout = pango_cairo_create_layout (cr);
desc = pango_font_description_from_string (fontName);
pango_layout_set_font_description (layout, desc);
pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
pango_layout_set_markup_with_accel (layout, _text, -1, '_', NULL);
pangoCtx = pango_layout_get_context (layout); // is not ref'ed
pango_cairo_context_set_font_options (pangoCtx,
gdk_screen_get_font_options (screen));
g_object_get (settings, "gtk-xft-dpi", &dpi, NULL);
if (dpi == -1)
{
// use some default DPI-value
pango_cairo_context_set_resolution (pangoCtx, 96.0f);
}
else
{
pango_cairo_context_set_resolution (pangoCtx,
(float) dpi / (float) PANGO_SCALE);
}
pango_layout_context_changed (layout);
cairo_move_to (cr,
2 * ITEM_MARGIN + ITEM_INDENT_ABS,
(float) (height - textHeight) / 2.0f);
pango_cairo_show_layout (cr, layout);
// clean up
pango_font_description_free (desc);
g_free (fontName);
g_object_unref (layout);
}
// Introspection
const gchar* QuicklistMenuItem::GetName ()
{
return g_strdup (_name);
}
void QuicklistMenuItem::AddProperties (GVariantBuilder *builder)
{
g_variant_builder_add (builder, "{sv}", "text", g_variant_new_string (_text));
g_variant_builder_add (builder, "{sv}", "x", g_variant_new_int32 (GetBaseX ()));
g_variant_builder_add (builder, "{sv}", "y", g_variant_new_int32 (GetBaseY ()));
g_variant_builder_add (builder, "{sv}", "width", g_variant_new_int32 (GetBaseWidth ()));
g_variant_builder_add (builder, "{sv}", "height", g_variant_new_int32 (GetBaseHeight ()));
g_variant_builder_add (builder, "{sv}", "enabled", g_variant_new_boolean (GetEnabled ()));
g_variant_builder_add (builder, "{sv}", "active", g_variant_new_boolean (GetActive ()));
g_variant_builder_add (builder, "{sv}", "visible", g_variant_new_boolean (GetVisible ()));
}
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