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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:24:48 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:24:48 +0000
commitcca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch)
tree146f39ded1c938019e1ed42d30923c2ac9e86789 /src/ui/widget/gradient-selector.cpp
parentInitial commit. (diff)
downloadinkscape-upstream.tar.xz
inkscape-upstream.zip
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--src/ui/widget/gradient-selector.cpp612
1 files changed, 612 insertions, 0 deletions
diff --git a/src/ui/widget/gradient-selector.cpp b/src/ui/widget/gradient-selector.cpp
new file mode 100644
index 0000000..e6bfa7e
--- /dev/null
+++ b/src/ui/widget/gradient-selector.cpp
@@ -0,0 +1,612 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Gradient vector widget
+ *
+ * Authors:
+ * Lauris Kaplinski <lauris@kaplinski.com>
+ * bulia byak <buliabyak@users.sf.net>
+ * Jon A. Cruz <jon@joncruz.org>
+ *
+ * Copyright (C) 2001-2002 Lauris Kaplinski
+ * Copyright (C) 2001 Ximian, Inc.
+ * Copyright (C) 2010 Jon A. Cruz
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <glibmm/i18n.h>
+#include <gtkmm/treeview.h>
+#include <vector>
+
+#include "document-undo.h"
+#include "document.h"
+#include "gradient-chemistry.h"
+#include "id-clash.h"
+#include "inkscape.h"
+#include "preferences.h"
+
+#include "object/sp-defs.h"
+#include "style.h"
+
+#include "actions/actions-tools.h" // Invoke gradient tool
+#include "ui/icon-loader.h"
+#include "ui/icon-names.h"
+#include "ui/widget/gradient-vector-selector.h"
+
+namespace Inkscape {
+namespace UI {
+namespace Widget {
+
+void GradientSelector::style_button(Gtk::Button *btn, char const *iconName)
+{
+ GtkWidget *child = sp_get_icon_image(iconName, GTK_ICON_SIZE_SMALL_TOOLBAR);
+ gtk_widget_show(child);
+ btn->add(*manage(Glib::wrap(child)));
+ btn->set_relief(Gtk::RELIEF_NONE);
+}
+
+GradientSelector::GradientSelector()
+ : _blocked(false)
+ , _mode(MODE_LINEAR)
+ , _gradientUnits(SP_GRADIENT_UNITS_USERSPACEONUSE)
+ , _gradientSpread(SP_GRADIENT_SPREAD_PAD)
+{
+ set_orientation(Gtk::ORIENTATION_VERTICAL);
+
+ /* Vectors */
+ _vectors = Gtk::manage(new GradientVectorSelector(nullptr, nullptr));
+ _store = _vectors->get_store();
+ _columns = _vectors->get_columns();
+
+ _treeview = Gtk::manage(new Gtk::TreeView());
+ _treeview->set_model(_store);
+ _treeview->set_headers_clickable(true);
+ _treeview->set_search_column(1);
+ _treeview->set_vexpand();
+ _icon_renderer = Gtk::manage(new Gtk::CellRendererPixbuf());
+ _text_renderer = Gtk::manage(new Gtk::CellRendererText());
+
+ _treeview->append_column(_("Gradient"), *_icon_renderer);
+ auto icon_column = _treeview->get_column(0);
+ icon_column->add_attribute(_icon_renderer->property_pixbuf(), _columns->pixbuf);
+ icon_column->set_sort_column(_columns->color);
+ icon_column->set_clickable(true);
+
+ _treeview->append_column(_("Name"), *_text_renderer);
+ auto name_column = _treeview->get_column(1);
+ _text_renderer->property_editable() = true;
+ name_column->add_attribute(_text_renderer->property_text(), _columns->name);
+ name_column->set_min_width(180);
+ name_column->set_clickable(true);
+ name_column->set_resizable(true);
+
+ _treeview->append_column("#", _columns->refcount);
+ auto count_column = _treeview->get_column(2);
+ count_column->set_clickable(true);
+ count_column->set_resizable(true);
+
+ _treeview->signal_key_press_event().connect(sigc::mem_fun(this, &GradientSelector::onKeyPressEvent), false);
+
+ _treeview->show();
+
+ icon_column->signal_clicked().connect(sigc::mem_fun(this, &GradientSelector::onTreeColorColClick));
+ name_column->signal_clicked().connect(sigc::mem_fun(this, &GradientSelector::onTreeNameColClick));
+ count_column->signal_clicked().connect(sigc::mem_fun(this, &GradientSelector::onTreeCountColClick));
+
+ auto tree_select_connection = _treeview->get_selection()->signal_changed().connect(sigc::mem_fun(this, &GradientSelector::onTreeSelection));
+ _vectors->set_tree_select_connection(tree_select_connection);
+ _text_renderer->signal_edited().connect(sigc::mem_fun(this, &GradientSelector::onGradientRename));
+
+ _scrolled_window = Gtk::manage(new Gtk::ScrolledWindow());
+ _scrolled_window->add(*_treeview);
+ _scrolled_window->set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
+ _scrolled_window->set_shadow_type(Gtk::SHADOW_IN);
+ _scrolled_window->set_size_request(0, 180);
+ _scrolled_window->set_hexpand();
+ _scrolled_window->show();
+
+ pack_start(*_scrolled_window, true, true, 4);
+
+
+ /* Create box for buttons */
+ auto hb = Gtk::manage(new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL, 0));
+ hb->set_homogeneous(false);
+ pack_start(*hb, false, false, 0);
+
+ _add = Gtk::manage(new Gtk::Button());
+ style_button(_add, INKSCAPE_ICON("list-add"));
+
+ _nonsolid.push_back(_add);
+ hb->pack_start(*_add, false, false, 0);
+
+ _add->signal_clicked().connect(sigc::mem_fun(this, &GradientSelector::add_vector_clicked));
+ _add->set_sensitive(false);
+ _add->set_relief(Gtk::RELIEF_NONE);
+ _add->set_tooltip_text(_("Create a duplicate gradient"));
+
+ _del2 = Gtk::manage(new Gtk::Button());
+ style_button(_del2, INKSCAPE_ICON("list-remove"));
+
+ _nonsolid.push_back(_del2);
+ hb->pack_start(*_del2, false, false, 0);
+ _del2->signal_clicked().connect(sigc::mem_fun(this, &GradientSelector::delete_vector_clicked_2));
+ _del2->set_sensitive(false);
+ _del2->set_relief(Gtk::RELIEF_NONE);
+ _del2->set_tooltip_text(_("Delete unused gradient"));
+
+ // The only use of this button is hidden!
+ _edit = Gtk::manage(new Gtk::Button());
+ style_button(_edit, INKSCAPE_ICON("edit"));
+
+ _nonsolid.push_back(_edit);
+ hb->pack_start(*_edit, false, false, 0);
+ _edit->signal_clicked().connect(sigc::mem_fun(this, &GradientSelector::edit_vector_clicked));
+ _edit->set_sensitive(false);
+ _edit->set_relief(Gtk::RELIEF_NONE);
+ _edit->set_tooltip_text(_("Edit gradient"));
+ _edit->set_no_show_all();
+
+ _del = Gtk::manage(new Gtk::Button());
+ style_button(_del, INKSCAPE_ICON("list-remove"));
+
+ _swatch_widgets.push_back(_del);
+ hb->pack_start(*_del, false, false, 0);
+ _del->signal_clicked().connect(sigc::mem_fun(this, &GradientSelector::delete_vector_clicked));
+ _del->set_sensitive(false);
+ _del->set_relief(Gtk::RELIEF_NONE);
+ _del->set_tooltip_text(_("Delete swatch"));
+
+ hb->show_all();
+}
+
+void GradientSelector::setSpread(SPGradientSpread spread)
+{
+ _gradientSpread = spread;
+ // gtk_combo_box_set_active (GTK_COMBO_BOX(this->spread), gradientSpread);
+}
+
+void GradientSelector::setMode(SelectorMode mode)
+{
+ if (mode != _mode) {
+ _mode = mode;
+ if (mode == MODE_SWATCH) {
+ for (auto &it : _nonsolid) {
+ it->hide();
+ }
+ for (auto &swatch_widget : _swatch_widgets) {
+ swatch_widget->show_all();
+ }
+
+ auto icon_column = _treeview->get_column(0);
+ icon_column->set_title(_("Swatch"));
+
+ _vectors->setSwatched();
+ } else {
+ for (auto &it : _nonsolid) {
+ it->show_all();
+ }
+ for (auto &swatch_widget : _swatch_widgets) {
+ swatch_widget->hide();
+ }
+ auto icon_column = _treeview->get_column(0);
+ icon_column->set_title(_("Gradient"));
+ }
+ }
+}
+
+void GradientSelector::setUnits(SPGradientUnits units) { _gradientUnits = units; }
+
+SPGradientUnits GradientSelector::getUnits() { return _gradientUnits; }
+
+SPGradientSpread GradientSelector::getSpread() { return _gradientSpread; }
+
+void GradientSelector::onGradientRename(const Glib::ustring &path_string, const Glib::ustring &new_text)
+{
+ Gtk::TreePath path(path_string);
+ auto iter = _store->get_iter(path);
+
+ if (iter) {
+ Gtk::TreeModel::Row row = *iter;
+ if (row) {
+ SPObject *obj = row[_columns->data];
+ if (obj) {
+ row[_columns->name] = gr_prepare_label(obj);
+ if (!new_text.empty() && new_text != row[_columns->name]) {
+ rename_id(obj, new_text);
+ Inkscape::DocumentUndo::done(obj->document, _("Rename gradient"), INKSCAPE_ICON("color-gradient"));
+ }
+ }
+ }
+ }
+}
+
+void GradientSelector::onTreeColorColClick()
+{
+ auto column = _treeview->get_column(0);
+ column->set_sort_column(_columns->color);
+}
+
+void GradientSelector::onTreeNameColClick()
+{
+ auto column = _treeview->get_column(1);
+ column->set_sort_column(_columns->name);
+}
+
+
+void GradientSelector::onTreeCountColClick()
+{
+ auto column = _treeview->get_column(2);
+ column->set_sort_column(_columns->refcount);
+}
+
+void GradientSelector::moveSelection(int amount, bool down, bool toEnd)
+{
+ auto select = _treeview->get_selection();
+ auto iter = select->get_selected();
+
+ if (amount < 0) {
+ down = !down;
+ amount = -amount;
+ }
+
+ auto canary = iter;
+ if (down) {
+ ++canary;
+ } else {
+ --canary;
+ }
+ while (canary && (toEnd || amount > 0)) {
+ --amount;
+ if (down) {
+ ++canary;
+ ++iter;
+ } else {
+ --canary;
+ --iter;
+ }
+ }
+
+ select->select(iter);
+ _treeview->scroll_to_row(_store->get_path(iter), 0.5);
+}
+
+bool GradientSelector::onKeyPressEvent(GdkEventKey *event)
+{
+ bool consume = false;
+ auto display = Gdk::Display::get_default();
+ auto keymap = display->get_keymap();
+ guint key = 0;
+ gdk_keymap_translate_keyboard_state(keymap, event->hardware_keycode, static_cast<GdkModifierType>(event->state), 0,
+ &key, 0, 0, 0);
+
+ switch (key) {
+ case GDK_KEY_Up:
+ case GDK_KEY_KP_Up: {
+ moveSelection(-1);
+ consume = true;
+ break;
+ }
+ case GDK_KEY_Down:
+ case GDK_KEY_KP_Down: {
+ moveSelection(1);
+ consume = true;
+ break;
+ }
+ case GDK_KEY_Page_Up:
+ case GDK_KEY_KP_Page_Up: {
+ moveSelection(-5);
+ consume = true;
+ break;
+ }
+
+ case GDK_KEY_Page_Down:
+ case GDK_KEY_KP_Page_Down: {
+ moveSelection(5);
+ consume = true;
+ break;
+ }
+
+ case GDK_KEY_End:
+ case GDK_KEY_KP_End: {
+ moveSelection(0, true, true);
+ consume = true;
+ break;
+ }
+
+ case GDK_KEY_Home:
+ case GDK_KEY_KP_Home: {
+ moveSelection(0, false, true);
+ consume = true;
+ break;
+ }
+ }
+ return consume;
+}
+
+void GradientSelector::onTreeSelection()
+{
+ if (!_treeview) {
+ return;
+ }
+
+ if (_blocked) {
+ return;
+ }
+
+ if (!_treeview->has_focus()) {
+ /* Workaround for GTK bug on Windows/OS X
+ * When the treeview initially doesn't have focus and is clicked
+ * sometimes get_selection()->signal_changed() has the wrong selection
+ */
+ _treeview->grab_focus();
+ }
+
+ const auto sel = _treeview->get_selection();
+ if (!sel) {
+ return;
+ }
+
+ SPGradient *obj = nullptr;
+ /* Single selection */
+ auto iter = sel->get_selected();
+ if (iter) {
+ Gtk::TreeModel::Row row = *iter;
+ obj = row[_columns->data];
+ }
+
+ if (obj) {
+ vector_set(obj);
+ }
+
+ check_del_button();
+}
+
+void GradientSelector::check_del_button() {
+ const auto sel = _treeview->get_selection();
+ if (!sel) {
+ return;
+ }
+
+ SPGradient *obj = nullptr;
+ /* Single selection */
+ auto iter = sel->get_selected();
+ if (iter) {
+ Gtk::TreeModel::Row row = *iter;
+ obj = row[_columns->data];
+ }
+ if (_del2) {
+ _del2->set_sensitive(obj && sp_get_gradient_refcount(obj->document, obj) < 2 && _store->children().size() > 1);
+ }
+}
+
+bool GradientSelector::_checkForSelected(const Gtk::TreePath &path, const Gtk::TreeIter &iter, SPGradient *vector)
+{
+ bool found = false;
+
+ Gtk::TreeModel::Row row = *iter;
+ if (vector == row[_columns->data]) {
+ _treeview->scroll_to_row(path, 0.5);
+ auto select = _treeview->get_selection();
+ bool wasBlocked = _blocked;
+ _blocked = true;
+ select->select(iter);
+ _blocked = wasBlocked;
+ found = true;
+ }
+
+ return found;
+}
+
+void GradientSelector::selectGradientInTree(SPGradient *vector)
+{
+ _store->foreach (sigc::bind<SPGradient *>(sigc::mem_fun(*this, &GradientSelector::_checkForSelected), vector));
+}
+
+void GradientSelector::setVector(SPDocument *doc, SPGradient *vector)
+{
+ g_return_if_fail(!vector || SP_IS_GRADIENT(vector));
+ g_return_if_fail(!vector || (vector->document == doc));
+
+ if (vector && !vector->hasStops()) {
+ return;
+ }
+
+ _vectors->set_gradient(doc, vector);
+
+ selectGradientInTree(vector);
+
+ if (vector) {
+ if ((_mode == MODE_SWATCH) && vector->isSwatch()) {
+ if (vector->isSolid()) {
+ for (auto &it : _nonsolid) {
+ it->hide();
+ }
+ } else {
+ for (auto &it : _nonsolid) {
+ it->show_all();
+ }
+ }
+ } else if (_mode != MODE_SWATCH) {
+
+ for (auto &swatch_widget : _swatch_widgets) {
+ swatch_widget->hide();
+ }
+ for (auto &it : _nonsolid) {
+ it->show_all();
+ }
+ }
+
+ if (_edit) {
+ _edit->set_sensitive(true);
+ }
+ if (_add) {
+ _add->set_sensitive(true);
+ }
+ if (_del) {
+ _del->set_sensitive(true);
+ }
+ check_del_button();
+ } else {
+ if (_edit) {
+ _edit->set_sensitive(false);
+ }
+ if (_add) {
+ _add->set_sensitive(doc != nullptr);
+ }
+ if (_del) {
+ _del->set_sensitive(false);
+ }
+ if (_del2) {
+ _del2->set_sensitive(false);
+ }
+ }
+}
+
+SPGradient *GradientSelector::getVector()
+{
+ return _vectors->get_gradient();
+}
+
+
+void GradientSelector::vector_set(SPGradient *gr)
+{
+ if (!_blocked) {
+ _blocked = true;
+ gr = sp_gradient_ensure_vector_normalized(gr);
+ setVector((gr) ? gr->document : nullptr, gr);
+ _signal_changed.emit(gr);
+ _blocked = false;
+ }
+}
+
+void GradientSelector::delete_vector_clicked_2() {
+ const auto selection = _treeview->get_selection();
+ if (!selection) {
+ return;
+ }
+
+ SPGradient *obj = nullptr;
+ /* Single selection */
+ Gtk::TreeModel::iterator iter = selection->get_selected();
+ if (iter) {
+ Gtk::TreeModel::Row row = *iter;
+ obj = row[_columns->data];
+ }
+
+ if (obj) {
+ if (auto repr = obj->getRepr()) {
+ repr->setAttribute("inkscape:collect", "always");
+
+ auto move = iter;
+ --move;
+ if (!move) {
+ move = iter;
+ ++move;
+ }
+ if (move) {
+ selection->select(move);
+ _treeview->scroll_to_row(_store->get_path(move), 0.5);
+ }
+ }
+ }
+}
+
+void GradientSelector::delete_vector_clicked()
+{
+ const auto selection = _treeview->get_selection();
+ if (!selection) {
+ return;
+ }
+
+ SPGradient *obj = nullptr;
+ /* Single selection */
+ Gtk::TreeModel::iterator iter = selection->get_selected();
+ if (iter) {
+ Gtk::TreeModel::Row row = *iter;
+ obj = row[_columns->data];
+ }
+
+ if (obj) {
+ std::string id = obj->getId();
+ sp_gradient_unset_swatch(SP_ACTIVE_DESKTOP, id);
+ }
+}
+
+void GradientSelector::edit_vector_clicked()
+{
+ // Invoke the gradient tool.... never actually called as button is hidden in only use!
+ set_active_tool(SP_ACTIVE_DESKTOP, "Gradient");
+}
+
+void GradientSelector::add_vector_clicked()
+{
+ auto doc = _vectors->get_document();
+
+ if (!doc)
+ return;
+
+ auto gr = _vectors->get_gradient();
+ Inkscape::XML::Document *xml_doc = doc->getReprDoc();
+
+ Inkscape::XML::Node *repr = nullptr;
+
+ if (gr) {
+ gr->getRepr()->removeAttribute("inkscape:collect");
+ repr = gr->getRepr()->duplicate(xml_doc);
+ // Rename the new gradients id to be similar to the cloned gradients
+ auto new_id = generate_unique_id(doc, gr->getId());
+ gr->setAttribute("id", new_id.c_str());
+ doc->getDefs()->getRepr()->addChild(repr, nullptr);
+ } else {
+ repr = xml_doc->createElement("svg:linearGradient");
+ Inkscape::XML::Node *stop = xml_doc->createElement("svg:stop");
+ stop->setAttribute("offset", "0");
+ stop->setAttribute("style", "stop-color:#000;stop-opacity:1;");
+ repr->appendChild(stop);
+ Inkscape::GC::release(stop);
+ stop = xml_doc->createElement("svg:stop");
+ stop->setAttribute("offset", "1");
+ stop->setAttribute("style", "stop-color:#fff;stop-opacity:1;");
+ repr->appendChild(stop);
+ Inkscape::GC::release(stop);
+ doc->getDefs()->getRepr()->addChild(repr, nullptr);
+ gr = SP_GRADIENT(doc->getObjectByRepr(repr));
+ }
+
+ _vectors->set_gradient(doc, gr);
+
+ selectGradientInTree(gr);
+
+ // assign gradient to selection
+ vector_set(gr);
+
+ Inkscape::GC::release(repr);
+}
+
+void GradientSelector::show_edit_button(bool show) {
+ if (show) _edit->show(); else _edit->hide();
+}
+
+void GradientSelector::set_name_col_size(int min_width) {
+ auto name_column = _treeview->get_column(1);
+ name_column->set_min_width(min_width);
+}
+
+void GradientSelector::set_gradient_size(int width, int height) {
+ _vectors->set_pixmap_size(width, height);
+}
+
+} // namespace Widget
+} // namespace UI
+} // namespace Inkscape
+
+/*
+ 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 :