kis_change_frame_action.cpp

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/*
 *  SPDX-FileCopyrightText: 2015 Dmitry Kazakov <dimula73@gmail.com>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#include "kis_change_frame_action.h"
 
#include <klocalizedstring.h>
#include "kis_action.h"
#include "kis_input_manager.h"
#include "kis_canvas2.h"
#include "KisViewManager.h"
#include "kis_action_manager.h"
#include "kis_node.h"
#include "kis_image.h"
#include "kis_image_animation_interface.h"
 
struct KisChangeFrameAction::Private
{
};
 
KisChangeFrameAction::KisChangeFrameAction()
    : KisAbstractInputAction("Switch Time"),
      m_d(new Private)
{
    setName(i18n("Switch Time"));
    setDescription(i18n("The <i>Switch Time</i> action changes the current time of the animation."));
 
    QHash< QString, int > shortcuts;
    shortcuts.insert(i18n("Next Frame"), NextFrameShortcut);
    shortcuts.insert(i18n("Previous Frame"), PreviousFrameShortcut);
    setShortcutIndexes(shortcuts);
}
 
KisChangeFrameAction::~KisChangeFrameAction()
{
}
 
bool KisChangeFrameAction::isAvailable() const
{
    KisInputManager *im = inputManager();
    if (!im) return false;
 
    KisCanvas2 *canvas = im->canvas();
    if (!canvas) return false;
 
    KisImageWSP image = canvas->image();
    if (!bool(image)) return false;
 
    // Only works when this image has animation
    if (!image->animationInterface()->hasAnimation()) {
        return false;
    }
 
    // Prevents when in Edit Selection
    KisNodeSP activeNode = canvas->viewManager()->activeNode();
    if (activeNode && activeNode->inherits("KisSelectionMask")) {
        return false;
    }
 
    // Prevents when a shape is selected
    if (canvas->toolProxy() && canvas->toolProxy()->hasSelection()) {
        return false;
    }
 
    return true;
}
 
void KisChangeFrameAction::begin(int shortcut, QEvent *event)
{
    KisAbstractInputAction::begin(shortcut, event);
 
    switch(shortcut) {
    case NextFrameShortcut: {
        KisAction *action = inputManager()->canvas()->viewManager()->actionManager()->actionByName("next_frame");
        if (action) {
            action->trigger();
        }
        break;
    }
    case PreviousFrameShortcut: {
        KisAction *action = inputManager()->canvas()->viewManager()->actionManager()->actionByName("previous_frame");
        if (action) {
            action->trigger();
        }
        break;
    }
    }
}