mirror of https://github.com/aseprite/aseprite.git
63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
// Aseprite
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// Copyright (C) 2001-2017 David Capello
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//
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// This program is distributed under the terms of
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// the End-User License Agreement for Aseprite.
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "app/app.h"
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#include "app/commands/command.h"
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#include "app/context_access.h"
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#include "app/modules/gui.h"
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#include "app/ui/timeline/timeline.h"
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#include "app/document_range_ops.h"
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namespace app {
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class ReverseFramesCommand : public Command {
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public:
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ReverseFramesCommand();
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Command* clone() const override { return new ReverseFramesCommand(*this); }
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protected:
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bool onEnabled(Context* context) override;
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void onExecute(Context* context) override;
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};
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ReverseFramesCommand::ReverseFramesCommand()
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: Command("ReverseFrames", CmdUIOnlyFlag)
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{
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}
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bool ReverseFramesCommand::onEnabled(Context* context)
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{
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auto range = App::instance()->timeline()->range();
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return
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context->checkFlags(ContextFlags::ActiveDocumentIsWritable) &&
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range.enabled() &&
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range.frames() >= 2; // We need at least 2 frames to reverse
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}
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void ReverseFramesCommand::onExecute(Context* context)
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{
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auto range = App::instance()->timeline()->range();
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if (!range.enabled())
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return; // Nothing to do
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Document* doc = context->activeDocument();
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reverse_frames(doc, range);
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update_screen_for_document(doc);
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}
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Command* CommandFactory::createReverseFramesCommand()
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{
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return new ReverseFramesCommand;
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}
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} // namespace app
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