unsigned int CheckBox::drawImages(Form* form, const Rectangle& clip)
{
if (!_image)
return 0;
// Left, v-center.
// TODO: Set an alignment for icons.
const Rectangle& region = _image->getRegion();
const Theme::UVs& uvs = _image->getUVs();
Vector4 color = _image->getColor();
color.w *= _opacity;
Vector2 pos(_viewportBounds.x, _viewportBounds.y);
SpriteBatch* batch = _style->getTheme()->getSpriteBatch();
startBatch(form, batch);
batch->draw(pos.x, pos.y, _viewportBounds.height, _viewportBounds.height, uvs.u1, uvs.v1, uvs.u2, uvs.v2, color, _viewportClipBounds);
finishBatch(form, batch);
return 1;
}
unsigned int Slider::drawImages(Form* form, const Rectangle& clip)
{
if (!(_minImage && _maxImage && _markerImage && _trackImage))
return 0;
// TODO: Vertical slider.
// The slider is drawn in the center of the control (perpendicular to orientation).
// The track is stretched according to orientation.
// Caps and marker are not stretched.
const Rectangle& minCapRegion = _minImage->getRegion();
const Rectangle& maxCapRegion = _maxImage->getRegion();
const Rectangle& markerRegion = _markerImage->getRegion();
const Rectangle& trackRegion = _trackImage->getRegion();
const Theme::UVs& minCap = _minImage->getUVs();
const Theme::UVs& maxCap = _maxImage->getUVs();
const Theme::UVs& marker = _markerImage->getUVs();
const Theme::UVs& track = _trackImage->getUVs();
Vector4 minCapColor = _minImage->getColor();
Vector4 maxCapColor = _maxImage->getColor();
Vector4 markerColor = _markerImage->getColor();
Vector4 trackColor = _trackImage->getColor();
Control::State state = getState();
minCapColor.w *= _opacity;
maxCapColor.w *= _opacity;
markerColor.w *= _opacity;
trackColor.w *= _opacity;
SpriteBatch* batch = _style->getTheme()->getSpriteBatch();
startBatch(form, batch);
// Compute area to draw the slider track
unsigned int fontSize = getFontSize(state);
float startY, endY;
if (_text.length() > 0)
{
if (_valueTextVisible)
{
// Both label and value text are visible.
// Draw slider in the middle.
startY = fontSize;
endY = _viewportBounds.height - fontSize;
}
else
{
// Only label is visible
if (getTextAlignment(state) & ALIGN_BOTTOM)
{
// Draw slider above label
startY = 0;
endY = _viewportBounds.height - fontSize;
}
else
{
// Draw slider below label
startY = fontSize;
endY = _viewportBounds.height;
}
}
}
else if (_valueTextVisible)
{
// Only value text is visible.
if (_valueTextAlignment & ALIGN_BOTTOM)
{
// Draw slider above value text
startY = 0;
endY = _viewportBounds.height - fontSize;
}
else
{
// Draw slider below value text
startY = fontSize;
endY = _viewportBounds.height;
}
}
else
{
// Only the slider track is visible
startY = 0;
endY = _viewportBounds.height;
}
// Compute midpoint of track location
float midY = _viewportBounds.y + startY + (endY - startY) * 0.5f;
// Draw track below the slider text
Vector2 pos(_viewportBounds.x + minCapRegion.width, midY - trackRegion.height * 0.5f);
batch->draw(pos.x, pos.y, _viewportBounds.width - minCapRegion.width - maxCapRegion.width, trackRegion.height, track.u1, track.v1, track.u2, track.v2, trackColor, _viewportClipBounds);
// Draw min cap to the left of the track
pos.y = midY - minCapRegion.height * 0.5f;
pos.x = _viewportBounds.x;
batch->draw(pos.x, pos.y, minCapRegion.width, minCapRegion.height, minCap.u1, minCap.v1, minCap.u2, minCap.v2, minCapColor, _viewportClipBounds);
// Draw max cap to the right of the track
pos.x = _viewportBounds.right() - maxCapRegion.width;
batch->draw(pos.x, pos.y, maxCapRegion.width, maxCapRegion.height, maxCap.u1, maxCap.v1, maxCap.u2, maxCap.v2, maxCapColor, _viewportClipBounds);
// Draw the marker at the correct position
float markerPosition = (_value - _min) / (_max - _min);
markerPosition *= _viewportBounds.width - markerRegion.width;
pos.x = _viewportBounds.x + markerPosition;
pos.y = midY - markerRegion.height * 0.5f;
batch->draw(pos.x, pos.y, markerRegion.width, markerRegion.height, marker.u1, marker.v1, marker.u2, marker.v2, markerColor, _viewportClipBounds);
finishBatch(form, batch);
return 4;
}
