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https://github.com/aseprite/aseprite.git
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3fbdd40f24
This is the first version of the feature, it still needs some fixes (e.g. avoid skew transform when the pivot is in the same side of the skew handle which can calculate a division by zero).
117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
// Aseprite
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// Copyright (C) 2019-2020 Igara Studio S.A.
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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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#ifndef APP_UI_EDITOR_MOVING_PIXELS_STATE_H_INCLUDED
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#define APP_UI_EDITOR_MOVING_PIXELS_STATE_H_INCLUDED
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#pragma once
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#include "app/ui/context_bar_observer.h"
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#include "app/ui/editor/editor_observer.h"
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#include "app/ui/editor/handle_type.h"
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#include "app/ui/editor/pixels_movement.h"
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#include "app/ui/editor/standby_state.h"
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#include "app/ui/status_bar.h"
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#include "obs/connection.h"
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#include "ui/timer.h"
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namespace doc {
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class Image;
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}
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namespace app {
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class CommandExecutionEvent;
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class Editor;
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class MovingPixelsState
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: public StandbyState
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, EditorObserver
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, ContextBarObserver
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, PixelsMovementDelegate {
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public:
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MovingPixelsState(Editor* editor, ui::MouseMessage* msg, PixelsMovementPtr pixelsMovement, HandleType handle);
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virtual ~MovingPixelsState();
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bool canHandleFrameChange() const {
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return m_pixelsMovement->canHandleFrameChange();
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}
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void translate(const gfx::PointF& delta);
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void rotate(double angle);
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void flip(doc::algorithm::FlipType flipType);
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void shift(int dx, int dy);
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void updateTransformation(const Transformation& t);
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// EditorState
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virtual void onEnterState(Editor* editor) override;
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virtual void onEditorGotFocus(Editor* editor) override;
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virtual LeaveAction onLeaveState(Editor* editor, EditorState* newState) override;
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virtual void onActiveToolChange(Editor* editor, tools::Tool* tool) override;
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virtual bool onMouseDown(Editor* editor, ui::MouseMessage* msg) override;
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virtual bool onMouseUp(Editor* editor, ui::MouseMessage* msg) override;
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virtual bool onMouseMove(Editor* editor, ui::MouseMessage* msg) override;
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virtual bool onSetCursor(Editor* editor, const gfx::Point& mouseScreenPos) override;
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virtual bool onKeyDown(Editor* editor, ui::KeyMessage* msg) override;
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virtual bool onKeyUp(Editor* editor, ui::KeyMessage* msg) override;
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virtual bool onUpdateStatusBar(Editor* editor) override;
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virtual bool acceptQuickTool(tools::Tool* tool) override;
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virtual bool requireBrushPreview() override { return false; }
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// EditorObserver
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virtual void onDestroyEditor(Editor* editor) override;
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virtual void onBeforeFrameChanged(Editor* editor) override;
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virtual void onBeforeLayerChanged(Editor* editor) override;
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// ContextBarObserver
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virtual void onDropPixels(ContextBarObserver::DropAction action) override;
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// PixelsMovementDelegate
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virtual void onPivotChange() override;
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virtual Transformation getTransformation(Editor* editor) override;
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private:
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void onTransparentColorChange();
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void onRenderTimer();
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// ContextObserver
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void onBeforeCommandExecution(CommandExecutionEvent& ev);
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void setTransparentColor(bool opaque, const app::Color& color);
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void dropPixels();
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bool isActiveDocument() const;
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bool isActiveEditor() const;
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void removeAsEditorObserver();
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void removePixelsMovement();
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// Helper member to move/translate selection and pixels.
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PixelsMovementPtr m_pixelsMovement;
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Editor* m_editor;
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bool m_observingEditor;
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// True if the image was discarded (e.g. when a "Cut" command was
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// used to remove the dragged image).
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bool m_discarded;
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ui::Timer m_renderTimer;
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// Position of the mouse in the canvas to avoid redrawing when the
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// mouse position changes (only we redraw when the canvas position
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// changes).
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gfx::PointF m_oldSpritePos;
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obs::connection m_ctxConn;
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obs::connection m_opaqueConn;
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obs::connection m_transparentConn;
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};
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} // namespace app
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#endif // APP_UI_EDITOR_MOVING_PIXELS_STATE_H_INCLUDED
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