void CoverSwitchEffect::paintScreen(int mask, QRegion region, ScreenPaintData& data)
{
effects->paintScreen(mask, region, data);
if (mActivated || stop || stopRequested) {
QList< EffectWindow* > tempList = currentWindowList;
int index = tempList.indexOf(selected_window);
if (animation || start || stop) {
if (!start && !stop) {
if (direction == Right)
index++;
else
index--;
if (index < 0)
index = tempList.count() + index;
if (index >= tempList.count())
index = index % tempList.count();
}
foreach (Direction direction, scheduled_directions) {
if (direction == Right)
index++;
else
index--;
if (index < 0)
index = tempList.count() + index;
if (index >= tempList.count())
index = index % tempList.count();
}
}
int leftIndex = index - 1;
if (leftIndex < 0)
leftIndex = tempList.count() - 1;
int rightIndex = index + 1;
if (rightIndex == tempList.count())
rightIndex = 0;
EffectWindow* frontWindow = tempList[ index ];
leftWindows.clear();
rightWindows.clear();
bool evenWindows = (tempList.count() % 2 == 0) ? true : false;
int leftWindowCount = 0;
if (evenWindows)
leftWindowCount = tempList.count() / 2 - 1;
else
leftWindowCount = (tempList.count() - 1) / 2;
for (int i = 0; i < leftWindowCount; i++) {
int tempIndex = (leftIndex - i);
if (tempIndex < 0)
tempIndex = tempList.count() + tempIndex;
leftWindows.prepend(tempList[ tempIndex ]);
}
int rightWindowCount = 0;
if (evenWindows)
rightWindowCount = tempList.count() / 2;
else
rightWindowCount = (tempList.count() - 1) / 2;
for (int i = 0; i < rightWindowCount; i++) {
int tempIndex = (rightIndex + i) % tempList.count();
rightWindows.prepend(tempList[ tempIndex ]);
}
if (reflection) {
// no reflections during start and stop animation
// except when using a shader
if ((!start && !stop) || effects->compositingType() == OpenGL2Compositing)
paintScene(frontWindow, leftWindows, rightWindows, true);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// we can use a huge scale factor (needed to calculate the rearground vertices)
// as we restrict with a PaintClipper painting on the current screen
float reflectionScaleFactor = 100000 * tan(60.0 * M_PI / 360.0f) / area.width();
const float width = area.width();
const float height = area.height();
float vertices[] = {
-width * 0.5f, height, 0.0,
width * 0.5f, height, 0.0,
width*reflectionScaleFactor, height, -5000,
-width*reflectionScaleFactor, height, -5000
};
// foreground
if (start) {
mirrorColor[0][3] = timeLine.currentValue();
} else if (stop) {
mirrorColor[0][3] = 1.0 - timeLine.currentValue();
} else {
mirrorColor[0][3] = 1.0;
}
int y = 0;
// have to adjust the y values to fit OpenGL
// in OpenGL y==0 is at bottom, in Qt at top
if (effects->numScreens() > 1) {
QRect fullArea = effects->clientArea(FullArea, 0, 1);
if (fullArea.height() != area.height()) {
if (area.y() == 0)
y = fullArea.height() - area.height();
else
y = fullArea.height() - area.y() - area.height();
}
}
// use scissor to restrict painting of the reflection plane to current screen
glScissor(area.x(), y, area.width(), area.height());
glEnable(GL_SCISSOR_TEST);
if (m_reflectionShader && m_reflectionShader->isValid()) {
ShaderManager::instance()->pushShader(m_reflectionShader);
QMatrix4x4 windowTransformation = data.projectionMatrix();
windowTransformation.translate(area.x() + area.width() * 0.5f, 0.0, 0.0);
m_reflectionShader->setUniform(GLShader::ModelViewProjectionMatrix, windowTransformation);
m_reflectionShader->setUniform("u_frontColor", QVector4D(mirrorColor[0][0], mirrorColor[0][1], mirrorColor[0][2], mirrorColor[0][3]));
m_reflectionShader->setUniform("u_backColor", QVector4D(mirrorColor[1][0], mirrorColor[1][1], mirrorColor[1][2], mirrorColor[1][3]));
// TODO: make this one properly
QVector<float> verts;
QVector<float> texcoords;
verts.reserve(18);
texcoords.reserve(12);
texcoords << 1.0 << 0.0;
verts << vertices[6] << vertices[7] << vertices[8];
texcoords << 1.0 << 0.0;
verts << vertices[9] << vertices[10] << vertices[11];
texcoords << 0.0 << 0.0;
verts << vertices[0] << vertices[1] << vertices[2];
texcoords << 0.0 << 0.0;
verts << vertices[0] << vertices[1] << vertices[2];
texcoords << 0.0 << 0.0;
verts << vertices[3] << vertices[4] << vertices[5];
texcoords << 1.0 << 0.0;
verts << vertices[6] << vertices[7] << vertices[8];
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
vbo->setData(6, 3, verts.data(), texcoords.data());
vbo->render(GL_TRIANGLES);
ShaderManager::instance()->popShader();
}
glDisable(GL_SCISSOR_TEST);
glDisable(GL_BLEND);
}
paintScene(frontWindow, leftWindows, rightWindows);
// Render the caption frame
if (windowTitle) {
double opacity = 1.0;
if (start)
opacity = timeLine.currentValue();
else if (stop)
opacity = 1.0 - timeLine.currentValue();
if (animation)
captionFrame->setCrossFadeProgress(timeLine.currentValue());
captionFrame->render(region, opacity);
}
}
