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serenity/Userland/Applications/PixelPaint/Tools/MoveTool.h
Tim Ledbetter 77e15ff4da PixelPaint: Let the move tool optionally select the active layer
Previously, the move tool would always select the topmost layer before
performing a move operation. This commit adds an option for the move
tool to always select the active layer, even if it is behind another.
2023-01-26 14:00:14 +01:00

64 lines
2.1 KiB
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022-2023, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include "../Layer.h"
#include "Tool.h"
#include <LibGUI/RadioButton.h>
namespace PixelPaint {
enum class ResizeAnchorLocation {
BottomLeft,
BottomRight,
TopLeft,
TopRight
};
class MoveTool final : public Tool {
public:
MoveTool() = default;
virtual ~MoveTool() override = default;
enum class LayerSelectionMode {
ForegroundLayer,
ActiveLayer,
};
virtual void on_mousedown(Layer*, MouseEvent&) override;
virtual void on_mousemove(Layer*, MouseEvent&) override;
virtual void on_mouseup(Layer*, MouseEvent&) override;
virtual bool on_keydown(GUI::KeyEvent&) override;
virtual void on_keyup(GUI::KeyEvent&) override;
virtual void on_second_paint(Layer const*, GUI::PaintEvent&) override;
virtual GUI::Widget* get_properties_widget() override;
virtual Variant<Gfx::StandardCursor, NonnullRefPtr<Gfx::Bitmap>> cursor() override;
virtual bool is_overriding_alt() override { return true; }
LayerSelectionMode layer_selection_mode() const { return m_layer_selection_mode; }
private:
virtual StringView tool_name() const override { return "Move Tool"sv; }
ErrorOr<void> update_cached_preview_bitmap(Layer const* layer);
Optional<ResizeAnchorLocation const> resize_anchor_location_from_cursor_position(Layer const*, MouseEvent&);
void toggle_selection_mode();
LayerSelectionMode m_layer_selection_mode { LayerSelectionMode::ForegroundLayer };
RefPtr<Layer> m_layer_being_moved;
Gfx::IntPoint m_event_origin;
Gfx::IntPoint m_layer_origin;
Gfx::IntRect m_new_layer_rect;
bool m_scaling { false };
Optional<ResizeAnchorLocation const> m_resize_anchor_location {};
bool m_keep_aspect_ratio { false };
RefPtr<GUI::Widget> m_properties_widget;
RefPtr<GUI::RadioButton> m_selection_mode_foreground;
RefPtr<GUI::RadioButton> m_selection_mode_active;
RefPtr<Gfx::Bitmap> m_cached_preview_bitmap { nullptr };
};
}