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https://github.com/SerenityOS/serenity
synced 2024-10-04 15:09:40 +00:00
Paint Button in a very Windows 3-ish style.
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@ -21,8 +21,36 @@ void Button::setCaption(String&& caption)
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void Button::onPaint(PaintEvent&)
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{
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Color buttonColor(192, 192, 192);
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Color shadowColor(96, 96, 96);
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Painter painter(*this);
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painter.fillRect(rect(), backgroundColor());
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painter.fillRect(rect(), Color(255, 0, 255));
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painter.drawPixel({ 0, 0 }, backgroundColor());
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painter.drawPixel({ width() - 1, 0 }, backgroundColor());
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painter.drawPixel({ 0, height() - 1 }, backgroundColor());
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painter.drawPixel({ width() - 1, height() - 1 }, backgroundColor());
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painter.drawLine({ 1, 0 }, { width() - 2, 0 }, Color(0, 0, 0));
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painter.drawLine({ 1, height() - 1 }, { width() - 2, height() - 1}, Color(0, 0, 0));
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painter.drawLine({ 0, 1 }, { 0, height() - 2 }, Color(0, 0, 0));
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painter.drawLine({ width() - 1, 1 }, { width() - 1, height() - 2 }, Color(0, 0, 0));
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// White highlight
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painter.drawLine({ 1, 1 }, { width() - 2, 1 }, Color(255, 255, 255));
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painter.drawLine({ 1, 2 }, { width() - 3, 2 }, Color(255, 255, 255));
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painter.drawLine({ 1, 3 }, { 1, height() - 2 }, Color(255, 255, 255));
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painter.drawLine({ 2, 3 }, { 2, height() - 3 }, Color(255, 255, 255));
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// Gray shadow
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painter.drawLine({ width() - 2, 1 }, { width() - 2, height() - 4 }, shadowColor);
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painter.drawLine({ width() - 3, 2 }, { width() - 3, height() - 4 }, shadowColor);
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painter.drawLine({ 1, height() - 2 }, { width() - 2, height() - 2 }, shadowColor);
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painter.drawLine({ 2, height() - 3 }, { width() - 2, height() - 3 }, shadowColor);
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painter.fillRect({ 3, 3, width() - 6, height() - 6 }, buttonColor);
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if (!caption().isEmpty()) {
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painter.drawText(rect(), caption(), Painter::TextAlignment::Center, Color(0, 0, 0));
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}
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@ -125,3 +125,56 @@ void Painter::drawText(const Rect& rect, const String& text, TextAlignment align
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}
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}
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void Painter::drawPixel(const Point& p, Color color)
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{
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auto point = p;
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point.moveBy(m_translation);
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scanline(point.y())[point.x()] = color.value();
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}
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void Painter::drawLine(const Point& p1, const Point& p2, Color color)
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{
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auto point1 = p1;
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point1.moveBy(m_translation);
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auto point2 = p2;
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point2.moveBy(m_translation);
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// Special case: vertical line.
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if (point1.x() == point2.x()) {
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if (point1.y() > point2.y())
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std::swap(point1, point2);
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for (int y = point1.y(); y <= point2.y(); ++y)
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scanline(y)[point1.x()] = color.value();
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return;
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}
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if (point1.x() > point2.x())
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std::swap(point1, point2);
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// Special case: horizontal line.
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if (point1.y() == point2.y()) {
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if (point1.y() > point2.y())
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std::swap(point1, point2);
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auto* pixels = scanline(point1.y());
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for (int x = point1.x(); x <= point2.x(); ++x)
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pixels[x] = color.value();
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return;
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}
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const double dx = point2.x() - point1.x();
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const double dy = point2.y() - point1.y();
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const double deltaError = fabs(dy / dx);
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double error = 0;
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const double yStep = dy == 0 ? 0 : (dy > 0 ? 1 : -1);
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int y = point1.y();
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for (int x = point1.x(); x <= point2.x(); ++x) {
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scanline(y)[x] = color.value();
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error += deltaError;
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if (error >= 0.5) {
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y = (double)y + yStep;
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error -= 1.0;
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}
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}
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}
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@ -19,6 +19,8 @@ public:
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void drawRect(const Rect&, Color);
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void drawText(const Rect&, const String&, TextAlignment = TextAlignment::TopLeft, Color = Color());
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void drawBitmap(const Point&, const CBitmap&, Color = Color());
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void drawPixel(const Point&, Color);
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void drawLine(const Point& p1, const Point& p2, Color);
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void xorRect(const Rect&, Color);
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