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https://github.com/RGBCube/serenity
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56cbe15033
Also add a Tool base class, and an empty BucketTool subclass which is the next thing to implement.
60 lines
1.3 KiB
C++
60 lines
1.3 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 <SharedGraphics/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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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(*this, 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(*this, 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(*this, event);
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}
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