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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* Generic button widget
*//*
* Authors:
* see git history
* MenTaLguY <mental@rydia.net>
* Lauris Kaplinski <lauris@kaplinski.com>
* bulia byak <buliabyak@users.sf.net>
*
*
* Copyright (C) 2018 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include <glibmm.h>
#include "button.h"
#include "helper/action-context.h"
#include "helper/action.h"
#include "shortcuts.h"
#include "ui/icon-loader.h"
namespace Inkscape {
namespace UI {
namespace Widget {
Button::~Button()
{
if (_action) {
_c_set_active.disconnect();
_c_set_sensitive.disconnect();
g_object_unref(_action);
}
if (_doubleclick_action) {
set_doubleclick_action(nullptr);
}
}
void
Button::get_preferred_width_vfunc(int &minimal_width, int &natural_width) const
{
auto child = get_child();
if (child) {
child->get_preferred_width(minimal_width, natural_width);
} else {
minimal_width = 0;
natural_width = 0;
}
auto context = get_style_context();
auto padding = context->get_padding(context->get_state());
auto border = context->get_border(context->get_state());
minimal_width += MAX(2, padding.get_left() + padding.get_right() + border.get_left() + border.get_right());
natural_width += MAX(2, padding.get_left() + padding.get_right() + border.get_left() + border.get_right());
}
void
Button::get_preferred_height_vfunc(int &minimal_height, int &natural_height) const
{
auto child = get_child();
if (child) {
child->get_preferred_height(minimal_height, natural_height);
} else {
minimal_height = 0;
natural_height = 0;
}
auto context = get_style_context();
auto padding = context->get_padding(context->get_state());
auto border = context->get_border(context->get_state());
minimal_height += MAX(2, padding.get_top() + padding.get_bottom() + border.get_top() + border.get_bottom());
natural_height += MAX(2, padding.get_top() + padding.get_bottom() + border.get_top() + border.get_bottom());
}
void
Button::on_clicked()
{
if (_type == BUTTON_TYPE_TOGGLE) {
Gtk::Button::on_clicked();
}
}
bool
Button::process_event(GdkEvent *event)
{
switch (event->type) {
case GDK_2BUTTON_PRESS:
if (_doubleclick_action) {
sp_action_perform(_doubleclick_action, nullptr);
}
return true;
break;
default:
break;
}
return false;
}
void
Button::perform_action()
{
if (_action) {
sp_action_perform(_action, nullptr);
}
}
Button::Button(GtkIconSize size,
ButtonType type,
SPAction *action,
SPAction *doubleclick_action)
:
_action(nullptr),
_doubleclick_action(nullptr),
_type(type),
_lsize(CLAMP(size, GTK_ICON_SIZE_MENU, GTK_ICON_SIZE_DIALOG))
{
set_border_width(0);
set_can_focus(false);
set_can_default(false);
_on_clicked = signal_clicked().connect(sigc::mem_fun(*this, &Button::perform_action));
signal_event().connect(sigc::mem_fun(*this, &Button::process_event));
set_action(action);
if (doubleclick_action) {
set_doubleclick_action(doubleclick_action);
}
// The Inkscape style is no-relief buttons
set_relief(Gtk::RELIEF_NONE);
}
void
Button::toggle_set_down(bool down)
{
_on_clicked.block();
set_active(down);
_on_clicked.unblock();
}
void
Button::set_doubleclick_action(SPAction *action)
{
if (_doubleclick_action) {
g_object_unref(_doubleclick_action);
}
_doubleclick_action = action;
if (action) {
g_object_ref(action);
}
}
void
Button::set_action(SPAction *action)
{
Gtk::Widget *child;
if (_action) {
_c_set_active.disconnect();
_c_set_sensitive.disconnect();
child = get_child();
if (child) {
remove();
}
g_object_unref(_action);
}
_action = action;
if (action) {
g_object_ref(action);
_c_set_active = action->signal_set_active.connect(
sigc::mem_fun(*this, &Button::action_set_active));
_c_set_sensitive = action->signal_set_sensitive.connect(
sigc::mem_fun(*this, &Gtk::Widget::set_sensitive));
if (action->image) {
child = Glib::wrap(sp_get_icon_image(action->image, _lsize));
child->show();
add(*child);
}
}
set_composed_tooltip(action);
}
void
Button::action_set_active(bool active)
{
if (_type != BUTTON_TYPE_TOGGLE) {
return;
}
/* temporarily lobotomized until SPActions are per-view */
if (false && !active != !get_active()) {
toggle_set_down(active);
}
}
void
Button::set_composed_tooltip(SPAction *action)
{
if (action) {
unsigned int shortcut = sp_shortcut_get_primary(action->verb);
if (shortcut != GDK_KEY_VoidSymbol) {
// there's both action and shortcut
gchar *key = sp_shortcut_get_label(shortcut);
gchar *tip = g_strdup_printf("%s (%s)", action->tip, key);
set_tooltip_text(tip);
g_free(tip);
g_free(key);
} else {
// action has no shortcut
set_tooltip_text(action->tip);
}
} else {
// no action
set_tooltip_text(nullptr);
}
}
Button::Button(GtkIconSize size,
ButtonType type,
Inkscape::UI::View::View *view,
const gchar *name,
const gchar *tip)
:
_action(nullptr),
_doubleclick_action(nullptr),
_type(type),
_lsize(CLAMP(size, GTK_ICON_SIZE_MENU, GTK_ICON_SIZE_DIALOG))
{
set_border_width(0);
set_can_focus(false);
set_can_default(false);
_on_clicked = signal_clicked().connect(sigc::mem_fun(*this, &Button::perform_action));
signal_event().connect(sigc::mem_fun(*this, &Button::process_event));
auto action = sp_action_new(Inkscape::ActionContext(view), name, name, tip, name, nullptr);
set_action(action);
g_object_unref(action);
}
} // 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:fileencoding=utf-8 :
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