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-rw-r--r--src/selcue.cpp259
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diff --git a/src/selcue.cpp b/src/selcue.cpp
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+++ b/src/selcue.cpp
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * 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 v2+, read the file 'COPYING' for more information.
+ */
+
+#include "selcue.h"
+
+#include "desktop.h"
+#include "selection.h"
+#include "text-editing.h"
+
+#include "display/sodipodi-ctrl.h"
+#include "display/sodipodi-ctrlrect.h"
+#include "display/sp-canvas-util.h"
+
+#include "libnrtype/Layout-TNG.h"
+
+#include "object/sp-flowtext.h"
+#include "object/sp-text.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 (auto & _item_bboxe : _item_bboxes) {
+ sp_canvas_item_destroy(_item_bboxe);
+ }
+ _item_bboxes.clear();
+
+ for (auto & _text_baseline : _text_baselines) {
+ sp_canvas_item_destroy(_text_baseline);
+ }
+ _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 != nullptr);
+
+ 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() != (unsigned int) 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 (auto & _item_bboxe : _item_bboxes) {
+ sp_canvas_item_destroy(_item_bboxe);
+ }
+ _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 != nullptr);
+
+ 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 = nullptr;
+
+ 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", 6,
+ "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,
+ nullptr);
+
+ SP_CTRLRECT(box)->setRectangle(*b);
+ SP_CTRLRECT(box)->setColor(0xffffffa0, false, 0);
+ SP_CTRLRECT(box)->setDashed(true);
+ SP_CTRLRECT(box)->setInvert(false);
+ SP_CTRLRECT(box)->setShadow(1, 0x0000c0a0);
+
+ sp_canvas_item_move_to_z(box, 0);
+ }
+ }
+
+ if (box) {
+ _item_bboxes.push_back(box);
+ }
+ }
+
+ _newTextBaselines();
+}
+
+void Inkscape::SelCue::_newTextBaselines()
+{
+ for (auto & _text_baseline : _text_baselines) {
+ sp_canvas_item_destroy(_text_baseline);
+ }
+ _text_baselines.clear();
+
+ auto ll = _selection->items();
+ for (auto l=ll.begin();l!=ll.end();++l) {
+ SPItem *item = *l;
+
+ SPCanvasItem* baseline_point = nullptr;
+ if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item)) { // visualize baseline
+ Inkscape::Text::Layout const *layout = te_get_layout(item);
+ if (layout != nullptr && 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", 5,
+ "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 != nullptr);
+
+ _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 :