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9b71307d49
This patch also adds a Format concept to GraphicsBitmap. For now there are only two formats: RGB32 and RGBA32. Windows with alpha channel have their backing stores created in the RGBA32 format. Use this to make Terminal windows semi-transparent for that comfy rice look. There is one problem here, in that window compositing overdraw incurs multiple passes of blending of the same pixels. This leads to a mismatch in opacity which is obviously not good. I will work on this in a later patch. The alpha blending is currently straight C++. It should be relatively easy to optimize this using SSE instructions. For now I'm just happy with the cute effect. :^)
39 lines
896 B
C++
39 lines
896 B
C++
#include "GLabel.h"
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#include <SharedGraphics/Painter.h>
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#include <SharedGraphics/GraphicsBitmap.h>
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GLabel::GLabel(GWidget* parent)
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: GWidget(parent)
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{
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}
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GLabel::~GLabel()
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{
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}
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void GLabel::set_icon(RetainPtr<GraphicsBitmap>&& icon)
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{
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m_icon = move(icon);
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}
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void GLabel::set_text(String&& text)
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{
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if (text == m_text)
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return;
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m_text = move(text);
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update();
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}
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void GLabel::paint_event(GPaintEvent&)
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{
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Painter painter(*this);
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if (fill_with_background_color())
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painter.fill_rect({ 0, 0, width(), height() }, background_color());
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if (m_icon) {
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auto icon_location = rect().center().translated(-(m_icon->width() / 2), -(m_icon->height() / 2));
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painter.blit(icon_location, *m_icon, m_icon->rect());
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}
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if (!text().is_empty())
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painter.draw_text({ 0, 0, width(), height() }, text(), m_text_alignment, foreground_color());
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}
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