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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/font-selector.h
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>
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Author:
+ * Tavmjong Bah <tavmjong@free.fr>
+ *
+ * Copyright (C) 2018 Tavmong Bah
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ *
+ *
+ * The routines here create and manage a font selector widget with three parts,
+ * one each for font-family, font-style, and font-size.
+ *
+ * It is used by the TextEdit and Glyphs panel dialogs. The FontLister class is used
+ * to access the list of font-families and their associated styles for fonts either
+ * on the system or in the document. The FontLister class is also used by the Text
+ * toolbar. Fonts are kept track of by their "fontspecs" which are the same as the
+ * strings that Pango generates.
+ *
+ * The main functions are:
+ * Create the font-seletor widget.
+ * Update the lists when a new text selection is made.
+ * Update the Style list when a new font-family is selected, highlighting the
+ * best match to the original font style (as not all fonts have the same style options).
+ * Emit a signal when any change is made so that the Text Preview can be updated.
+ * Provide the currently selected values.
+ */
+
+#ifndef INKSCAPE_UI_WIDGET_FONT_SELECTOR_H
+#define INKSCAPE_UI_WIDGET_FONT_SELECTOR_H
+
+#include <gtkmm/grid.h>
+#include <gtkmm/frame.h>
+#include <gtkmm/scrolledwindow.h>
+#include <gtkmm/treeview.h>
+#include <gtkmm/label.h>
+#include <gtkmm/comboboxtext.h>
+
+#include "ui/widget/font-variations.h"
+#include "ui/widget/scrollprotected.h"
+
+namespace Inkscape {
+namespace UI {
+namespace Widget {
+
+/**
+ * A container of widgets for selecting font faces.
+ *
+ * It is used by the TextEdit and Glyphs panel dialogs. The FontSelector class utilizes the
+ * FontLister class to obtain a list of font-families and their associated styles for fonts either
+ * on the system or in the document. The FontLister class is also used by the Text toolbar. Fonts
+ * are kept track of by their "fontspecs" which are the same as the strings that Pango generates.
+ *
+ * The main functions are:
+ * Create the font-selector widget.
+ * Update the child widgets when a new text selection is made.
+ * Update the Style list when a new font-family is selected, highlighting the
+ * best match to the original font style (as not all fonts have the same style options).
+ * Emit a signal when any change is made to a child widget.
+ */
+class FontSelector : public Gtk::Grid
+{
+
+public:
+
+ /**
+ * Constructor
+ */
+ FontSelector (bool with_size = true, bool with_variations = true);
+
+protected:
+
+ // Font family
+ Gtk::Frame family_frame;
+ Gtk::ScrolledWindow family_scroll;
+ Gtk::TreeView family_treeview;
+ Gtk::TreeViewColumn family_treecolumn;
+ Gtk::CellRendererText family_cell;
+
+ // Font style
+ Gtk::Frame style_frame;
+ Gtk::ScrolledWindow style_scroll;
+ Gtk::TreeView style_treeview;
+ Gtk::TreeViewColumn style_treecolumn;
+ Gtk::CellRendererText style_cell;
+
+ // Font size
+ Gtk::Label size_label;
+ ScrollProtected<Gtk::ComboBoxText> size_combobox;
+
+ // Font variations
+ Gtk::ScrolledWindow font_variations_scroll;
+ FontVariations font_variations;
+
+private:
+
+ // Set sizes in font size combobox.
+ void set_sizes();
+ void set_fontsize_tooltip();
+
+ // Use font style when listing style names.
+ void style_cell_data_func (Gtk::CellRenderer *renderer, Gtk::TreeIter const &iter);
+
+ // Signal handlers
+ void on_family_changed();
+ void on_style_changed();
+ void on_size_changed();
+ void on_variations_changed();
+
+ // Signals
+ sigc::signal<void, Glib::ustring> signal_changed;
+ void changed_emit();
+ bool signal_block;
+
+ // Variables
+ double font_size;
+ bool initial = true;
+
+ // control font variations update and UI element size
+ void update_variations(const Glib::ustring& fontspec);
+
+public:
+
+ /**
+ * Update GUI based on fontspec
+ */
+ void update_font ();
+ void update_size (double size);
+
+ /**
+ * Get fontspec based on current settings. (Does not handle size, yet.)
+ */
+ Glib::ustring get_fontspec(bool use_variations = true);
+
+ /**
+ * Get font size. Could be merged with fontspec.
+ */
+ double get_fontsize() { return font_size; };
+
+ /**
+ * Let others know that user has changed GUI settings.
+ * (Used to enable 'Apply' and 'Default' buttons.)
+ */
+ sigc::connection connectChanged(sigc::slot<void, Glib::ustring> slot) {
+ return signal_changed.connect(slot);
+ }
+};
+
+
+} // namespace Widget
+} // namespace UI
+} // namespace Inkscape
+
+#endif // INKSCAPE_UI_WIDGET_FONT_SETTINGS_H
+
+/*
+ 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:fileencoding=utf-8 :