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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/spinbutton.h
parentInitial commit. (diff)
downloadinkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.tar.xz
inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.zip
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/ui/widget/spinbutton.h')
-rw-r--r--src/ui/widget/spinbutton.h112
1 files changed, 112 insertions, 0 deletions
diff --git a/src/ui/widget/spinbutton.h b/src/ui/widget/spinbutton.h
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Author:
+ * Johan B. C. Engelen
+ *
+ * Copyright (C) 2011 Author
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifndef INKSCAPE_UI_WIDGET_SPINBUTTON_H
+#define INKSCAPE_UI_WIDGET_SPINBUTTON_H
+
+#include <gtkmm/spinbutton.h>
+
+#include "scrollprotected.h"
+
+namespace Inkscape {
+namespace UI {
+namespace Widget {
+
+class UnitMenu;
+class UnitTracker;
+
+/**
+ * SpinButton widget, that allows entry of simple math expressions (also units, when linked with UnitMenu),
+ * and allows entry of both '.' and ',' for the decimal, even when in numeric mode.
+ *
+ * Calling "set_numeric()" effectively disables the expression parsing. If no unit menu is linked, all unitlike characters are ignored.
+ */
+class SpinButton : public ScrollProtected<Gtk::SpinButton>
+{
+ using parent_type = ScrollProtected<Gtk::SpinButton>;
+
+public:
+ using parent_type::parent_type;
+
+ void setUnitMenu(UnitMenu* unit_menu) { _unit_menu = unit_menu; };
+
+ void addUnitTracker(UnitTracker* ut) { _unit_tracker = ut; };
+
+ // TODO: Might be better to just have a default value and a reset() method?
+ inline void set_zeroable(const bool zeroable = true) { _zeroable = zeroable; }
+ inline void set_oneable(const bool oneable = true) { _oneable = oneable; }
+
+ inline bool get_zeroable() const { return _zeroable; }
+ inline bool get_oneable() const { return _oneable; }
+
+ void defocus();
+
+protected:
+ UnitMenu *_unit_menu = nullptr; ///< Linked unit menu for unit conversion in entered expressions.
+ UnitTracker *_unit_tracker = nullptr; ///< Linked unit tracker for unit conversion in entered expressions.
+ double _on_focus_in_value = 0.;
+ Gtk::Widget *_defocus_widget = nullptr; ///< Widget that should grab focus when the spinbutton defocuses
+
+ bool _zeroable = false; ///< Reset-value should be zero
+ bool _oneable = false; ///< Reset-value should be one
+
+ bool _stay = false; ///< Whether to ignore defocusing
+ bool _dont_evaluate = false; ///< Don't attempt to evaluate expressions
+
+ /**
+ * This callback function should try to convert the entered text to a number and write it to newvalue.
+ * It calls a method to evaluate the (potential) mathematical expression.
+ *
+ * @retval false No conversion done, continue with default handler.
+ * @retval true Conversion successful, don't call default handler.
+ */
+ int on_input(double* newvalue) override;
+
+ /**
+ * When focus is obtained, save the value to enable undo later.
+ * @retval false continue with default handler.
+ * @retval true don't call default handler.
+ */
+ bool on_focus_in_event(GdkEventFocus *) override;
+
+ /**
+ * Handle specific keypress events, like Ctrl+Z.
+ *
+ * @retval false continue with default handler.
+ * @retval true don't call default handler.
+ */
+ bool on_key_press_event(GdkEventKey *) override;
+
+ /**
+ * Undo the editing, by resetting the value upon when the spinbutton got focus.
+ */
+ void undo();
+
+ public:
+ inline void set_defocus_widget(const decltype(_defocus_widget) widget) { _defocus_widget = widget; }
+ inline void set_dont_evaluate(bool flag) { _dont_evaluate = flag; }
+};
+
+} // namespace Widget
+} // namespace UI
+} // namespace Inkscape
+
+#endif // INKSCAPE_UI_WIDGET_SPINBUTTON_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:textwidth=99 :