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/*
* Helper object for showing selected items
*
* Authors:
* bulia byak <bulia@users.sf.net>
* Carl Hetherington <inkscape@carlh.net>
* Abhishek Sharma
*
* Copyright (C) 2004 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include "desktop.h"
#include "selection.h"
#include "display/sp-canvas-util.h"
#include "display/sodipodi-ctrl.h"
#include "display/sodipodi-ctrlrect.h"
#include "libnrtype/Layout-TNG.h"
#include "text-editing.h"
#include "sp-text.h"
#include "sp-flowtext.h"
#include "selcue.h"
Inkscape::SelCue::BoundingBoxPrefsObserver::BoundingBoxPrefsObserver(SelCue &sel_cue) :
Observer("/tools/bounding_box"),
_sel_cue(sel_cue)
{
}
void Inkscape::SelCue::BoundingBoxPrefsObserver::notify(Preferences::Entry const &val)
{
_sel_cue._boundingBoxPrefsChanged(static_cast<int>(val.getBool()));
}
Inkscape::SelCue::SelCue(SPDesktop *desktop)
: _desktop(desktop),
_bounding_box_prefs_observer(*this)
{
_selection = _desktop->getSelection();
_sel_changed_connection = _selection->connectChanged(
sigc::hide(sigc::mem_fun(*this, &Inkscape::SelCue::_newItemBboxes))
);
{
void(SelCue::*modifiedSignal)() = &SelCue::_updateItemBboxes;
_sel_modified_connection = _selection->connectModified(
sigc::hide(sigc::hide(sigc::mem_fun(*this, modifiedSignal)))
);
}
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
_updateItemBboxes(prefs);
prefs->addObserver(_bounding_box_prefs_observer);
}
Inkscape::SelCue::~SelCue()
{
_sel_changed_connection.disconnect();
_sel_modified_connection.disconnect();
for (std::vector<SPCanvasItem*>::iterator i = _item_bboxes.begin(); i != _item_bboxes.end(); ++i) {
sp_canvas_item_destroy(*i);
}
_item_bboxes.clear();
for (std::vector<SPCanvasItem*>::iterator i = _text_baselines.begin(); i != _text_baselines.end(); ++i) {
sp_canvas_item_destroy(*i);
}
_text_baselines.clear();
}
void Inkscape::SelCue::_updateItemBboxes()
{
_updateItemBboxes(Inkscape::Preferences::get());
}
void Inkscape::SelCue::_updateItemBboxes(Inkscape::Preferences *prefs)
{
gint mode = prefs->getInt("/options/selcue/value", MARK);
if (mode == NONE) {
return;
}
g_return_if_fail(_selection != NULL);
int prefs_bbox = prefs->getBool("/tools/bounding_box");
_updateItemBboxes(mode, prefs_bbox);
}
void Inkscape::SelCue::_updateItemBboxes(gint mode, int prefs_bbox)
{
auto items = _selection->items();
if (_item_bboxes.size() != boost::distance(items)) {
_newItemBboxes();
return;
}
int bcount = 0;
auto ll= _selection->items();
for (auto l = ll.begin(); l != ll.end(); ++l) {
SPItem *item = *l;
SPCanvasItem* box = _item_bboxes[bcount ++];
if (box) {
Geom::OptRect const b = (prefs_bbox == 0) ?
item->desktopVisualBounds() : item->desktopGeometricBounds();
if (b) {
sp_canvas_item_show(box);
if (mode == MARK) {
SP_CTRL(box)->moveto(Geom::Point(b->min()[Geom::X], b->max()[Geom::Y]));
} else if (mode == BBOX) {
SP_CTRLRECT(box)->setRectangle(*b);
}
} else { // no bbox
sp_canvas_item_hide(box);
}
}
}
_newTextBaselines();
}
void Inkscape::SelCue::_newItemBboxes()
{
for (std::vector<SPCanvasItem*>::iterator i = _item_bboxes.begin(); i != _item_bboxes.end(); ++i) {
sp_canvas_item_destroy(*i);
}
_item_bboxes.clear();
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
gint mode = prefs->getInt("/options/selcue/value", MARK);
if (mode == NONE) {
return;
}
g_return_if_fail(_selection != NULL);
int prefs_bbox = prefs->getBool("/tools/bounding_box");
auto ll= _selection->items();
for (auto l = ll.begin(); l != ll.end(); ++l) {
SPItem *item = *l;
Geom::OptRect const b = (prefs_bbox == 0) ?
item->desktopVisualBounds() : item->desktopGeometricBounds();
SPCanvasItem* box = NULL;
if (b) {
if (mode == MARK) {
box = sp_canvas_item_new(_desktop->getControls(),
SP_TYPE_CTRL,
"mode", SP_CTRL_MODE_XOR,
"shape", SP_CTRL_SHAPE_DIAMOND,
"size", 5.0,
"filled", TRUE,
"fill_color", 0x000000ff,
"stroked", FALSE,
"stroke_color", 0x000000ff,
NULL);
sp_canvas_item_show(box);
SP_CTRL(box)->moveto(Geom::Point(b->min()[Geom::X], b->max()[Geom::Y]));
sp_canvas_item_move_to_z(box, 0); // just low enough to not get in the way of other draggable knots
} else if (mode == BBOX) {
box = sp_canvas_item_new(_desktop->getControls(),
SP_TYPE_CTRLRECT,
NULL);
SP_CTRLRECT(box)->setRectangle(*b);
SP_CTRLRECT(box)->setColor(0x000000a0, 0, 0);
SP_CTRLRECT(box)->setDashed(true);
SP_CTRLRECT(box)->setShadow(1, 0xffffffff);
sp_canvas_item_move_to_z(box, 0);
}
}
if (box) {
_item_bboxes.push_back(box);
}
}
_newTextBaselines();
}
void Inkscape::SelCue::_newTextBaselines()
{
for (std::vector<SPCanvasItem*>::iterator i = _text_baselines.begin(); i != _text_baselines.end(); ++i) {
sp_canvas_item_destroy(*i);
}
_text_baselines.clear();
auto ll = _selection->items();
for (auto l=ll.begin();l!=ll.end();++l) {
SPItem *item = *l;
SPCanvasItem* baseline_point = NULL;
if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item)) { // visualize baseline
Inkscape::Text::Layout const *layout = te_get_layout(item);
if (layout != NULL && layout->outputExists()) {
boost::optional<Geom::Point> pt = layout->baselineAnchorPoint();
if (pt) {
baseline_point = sp_canvas_item_new(_desktop->getControls(), SP_TYPE_CTRL,
"mode", SP_CTRL_MODE_XOR,
"size", 4.0,
"filled", 0,
"stroked", 1,
"stroke_color", 0x000000ff,
NULL);
sp_canvas_item_show(baseline_point);
SP_CTRL(baseline_point)->moveto((*pt) * item->i2dt_affine());
sp_canvas_item_move_to_z(baseline_point, 0);
}
}
}
if (baseline_point) {
_text_baselines.push_back(baseline_point);
}
}
}
void Inkscape::SelCue::_boundingBoxPrefsChanged(int prefs_bbox)
{
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
gint mode = prefs->getInt("/options/selcue/value", MARK);
if (mode == NONE) {
return;
}
g_return_if_fail(_selection != NULL);
_updateItemBboxes(mode, prefs_bbox);
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :
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