Adding upstream version 1.0.2.upstream/1.0.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 259 insertions, 0 deletions

diff --git a/src/selcue.cpp b/src/selcue.cpp
new file mode 100644
index 0000000..b1d30bc
--- /dev/null
+++ b/src/selcue.cpp
@@ -0,0 +1,259 @@
+// 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 :