mirror of https://github.com/aseprite/aseprite.git
101 lines
2.3 KiB
C++
101 lines
2.3 KiB
C++
// Aseprite
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// Copyright (C) 2020-2024 Igara Studio S.A.
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// Copyright (C) 2016-2018 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/cmd/set_layer_opacity.h"
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#include "app/commands/command.h"
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#include "app/commands/params.h"
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#include "app/context.h"
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#include "app/context_access.h"
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#include "app/i18n/strings.h"
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#include "app/modules/gui.h"
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#include "app/tx.h"
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#include "app/ui/timeline/timeline.h"
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#include "doc/layer.h"
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#include <string>
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namespace app {
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class LayerOpacityCommand : public Command {
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public:
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LayerOpacityCommand();
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protected:
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bool onNeedsParams() const override { return true; }
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void onLoadParams(const Params& params) override;
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bool onEnabled(Context* context) override;
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void onExecute(Context* context) override;
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std::string onGetFriendlyName() const override;
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private:
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int m_opacity;
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};
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LayerOpacityCommand::LayerOpacityCommand() : Command(CommandId::LayerOpacity())
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{
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m_opacity = 255;
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}
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void LayerOpacityCommand::onLoadParams(const Params& params)
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{
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m_opacity = params.get_as<int>("opacity");
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m_opacity = std::clamp(m_opacity, 0, 255);
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}
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bool LayerOpacityCommand::onEnabled(Context* context)
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{
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return context->checkFlags(ContextFlags::ActiveDocumentIsWritable | ContextFlags::HasActiveLayer);
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}
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void LayerOpacityCommand::onExecute(Context* context)
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{
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ContextWriter writer(context);
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Layer* layer = writer.layer();
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if (!layer || !layer->isImage() || static_cast<LayerImage*>(layer)->opacity() == m_opacity)
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return;
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{
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Tx tx(writer, "Set Layer Opacity");
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Site site = writer.site();
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SelectedLayers selLayers;
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auto range = site.range();
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if (range.enabled()) {
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selLayers = range.selectedLayers();
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}
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else {
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selLayers.insert(writer.layer());
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}
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for (auto layer : selLayers) {
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if (layer->isImage())
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tx(new cmd::SetLayerOpacity(static_cast<LayerImage*>(layer), m_opacity));
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}
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tx.commit();
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}
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update_screen_for_document(writer.document());
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}
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std::string LayerOpacityCommand::onGetFriendlyName() const
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{
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return Strings::commands_LayerOpacity(m_opacity, int(100.0 * m_opacity / 255.0));
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}
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Command* CommandFactory::createLayerOpacityCommand()
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{
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return new LayerOpacityCommand;
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}
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} // namespace app
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