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1c0669f010
Instead of LibGUI and WindowServer building their own copies of the drawing and graphics code, let's it in a separate LibDraw library. This avoids building the code twice, and will encourage better separation of concerns. :^)
99 lines
2.0 KiB
C++
99 lines
2.0 KiB
C++
#include "PaintableWidget.h"
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#include "Tool.h"
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#include <LibGUI/GPainter.h>
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#include <LibDraw/GraphicsBitmap.h>
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static PaintableWidget* s_the;
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PaintableWidget& PaintableWidget::the()
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{
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return *s_the;
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}
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PaintableWidget::PaintableWidget(GWidget* parent)
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: GWidget(parent)
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{
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ASSERT(!s_the);
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s_the = this;
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set_fill_with_background_color(true);
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set_background_color(Color::MidGray);
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m_bitmap = GraphicsBitmap::create(GraphicsBitmap::Format::RGB32, { 600, 400 });
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m_bitmap->fill(Color::White);
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}
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PaintableWidget::~PaintableWidget()
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{
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}
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void PaintableWidget::paint_event(GPaintEvent& event)
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{
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GPainter painter(*this);
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painter.add_clip_rect(event.rect());
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painter.blit({ 0, 0 }, *m_bitmap, m_bitmap->rect());
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}
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void PaintableWidget::set_tool(Tool* tool)
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{
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if (m_tool)
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m_tool->clear();
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m_tool = tool;
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if (m_tool)
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m_tool->setup(*this);
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}
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Tool* PaintableWidget::tool()
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{
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return m_tool;
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}
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Color PaintableWidget::color_for(const GMouseEvent& event)
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{
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if (event.buttons() & GMouseButton::Left)
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return m_primary_color;
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if (event.buttons() & GMouseButton::Right)
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return m_secondary_color;
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ASSERT_NOT_REACHED();
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}
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void PaintableWidget::mousedown_event(GMouseEvent& event)
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{
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if (m_tool)
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m_tool->on_mousedown(event);
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}
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void PaintableWidget::mouseup_event(GMouseEvent& event)
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{
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if (m_tool)
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m_tool->on_mouseup(event);
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}
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void PaintableWidget::mousemove_event(GMouseEvent& event)
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{
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if (m_tool)
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m_tool->on_mousemove(event);
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}
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void PaintableWidget::set_primary_color(Color color)
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{
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if (m_primary_color == color)
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return;
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m_primary_color = color;
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if (on_primary_color_change)
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on_primary_color_change(color);
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}
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void PaintableWidget::set_secondary_color(Color color)
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{
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if (m_secondary_color == color)
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return;
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m_secondary_color = color;
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if (on_secondary_color_change)
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on_secondary_color_change(color);
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}
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void PaintableWidget::set_bitmap(const GraphicsBitmap& bitmap)
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{
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m_bitmap = bitmap;
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update();
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}
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