本文整理汇总了C++中app::Color::getAlpha方法的典型用法代码示例。如果您正苦于以下问题：C++ Color::getAlpha方法的具体用法？C++ Color::getAlpha怎么用？C++ Color::getAlpha使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类app::Color的用法示例。
在下文中一共展示了Color::getAlpha方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: onSetColor
void HsvSliders::onSetColor(const app::Color& color)
{
setAbsSliderValue(0, color.getHue());
setAbsSliderValue(1, color.getSaturation());
setAbsSliderValue(2, color.getValue());
setAbsSliderValue(3, color.getAlpha());
}示例2: draw_color
void draw_color(ui::Graphics* g, const Rect& rc, const app::Color& color)
{
if (rc.w < 1 || rc.h < 1)
return;
app::Color::Type type = color.getType();
int alpha = color.getAlpha();
if (alpha < 255) {
if (rc.w == rc.h)
rectgrid(g, rc, gfx::Size(rc.w/2, rc.h/2));
else
rectgrid(g, rc, gfx::Size(rc.w/4, rc.h/2));
}
if (alpha > 0) {
if (type == app::Color::IndexType) {
int index = color.getIndex();
if (index >= 0 && index < get_current_palette()->size()) {
g->fillRect(color_utils::color_for_ui(color), rc);
}
else {
g->fillRect(gfx::rgba(0, 0, 0), rc);
g->drawLine(gfx::rgba(255, 255, 255),
gfx::Point(rc.x+rc.w-2, rc.y+1),
gfx::Point(rc.x+1, rc.y+rc.h-2));
}
}
else
g->fillRect(color_utils::color_for_ui(color), rc);
}
}示例3: onSetColor
void ColorSliders::onSetColor(const app::Color& color)
{
setAbsSliderValue(Channel::Red, color.getRed());
setAbsSliderValue(Channel::Green, color.getGreen());
setAbsSliderValue(Channel::Blue, color.getBlue());
setAbsSliderValue(Channel::HsvHue, int(color.getHsvHue()));
setAbsSliderValue(Channel::HsvSaturation, int(color.getHsvSaturation() * 100.0));
setAbsSliderValue(Channel::HsvValue, int(color.getHsvValue() * 100.0));
setAbsSliderValue(Channel::HslHue, int(color.getHslHue()));
setAbsSliderValue(Channel::HslSaturation, int(color.getHslSaturation() * 100.0));
setAbsSliderValue(Channel::HslLightness, int(color.getHslLightness() * 100.0));
setAbsSliderValue(Channel::Gray, color.getGray());
setAbsSliderValue(Channel::Alpha, color.getAlpha());
}示例4: findBestfitIndex
void ColorPopup::findBestfitIndex(const app::Color& color)
{
if (!m_colorPalette)
return;
// Find bestfit palette entry
int r = color.getRed();
int g = color.getGreen();
int b = color.getBlue();
int a = color.getAlpha();
// Search for the closest color to the RGB values
int i = get_current_palette()->findBestfit(r, g, b, a, 0);
if (i >= 0) {
m_colorPalette->deselect();
m_colorPalette->selectColor(i);
}
}示例5: setColor
void ColorPopup::setColor(const app::Color& color,
const SetColorOptions options)
{
m_color = color;
if (m_simpleColors) {
int r = color.getRed();
int g = color.getGreen();
int b = color.getBlue();
int a = color.getAlpha();
int i = g_simplePal->findExactMatch(r, g, b, a, -1);
if (i >= 0)
m_simpleColors->selectColor(i);
else
m_simpleColors->deselect();
}
if (color.getType() == app::Color::IndexType) {
if (m_colorPalette) {
m_colorPalette->deselect();
m_colorPalette->selectColor(color.getIndex());
}
}
m_sliders.setColor(m_color);
if (!m_disableHexUpdate)
m_hexColorEntry.setColor(m_color);
if (options == ChangeType)
selectColorType(m_color.getType());
// Set the new color
Shade shade = m_oldAndNew.getShade();
shade.resize(2);
shade[1] = (color.getType() == app::Color::IndexType ? color.toRgb(): color);
if (!m_insideChange)
shade[0] = shade[1];
m_oldAndNew.setShade(shade);
}示例6: pickSample
void EyedropperCommand::pickSample(const doc::Site& site,
const gfx::Point& pixelPos,
app::Color& color)
{
// Check if we've to grab alpha channel or the merged color.
Preferences& pref = Preferences::instance();
bool allLayers =
(pref.eyedropper.sample() == app::gen::EyedropperSample::ALL_LAYERS);
ColorPicker picker;
picker.pickColor(site,
pixelPos,
(allLayers ?
ColorPicker::FromComposition:
ColorPicker::FromActiveLayer));
app::gen::EyedropperChannel channel =
pref.eyedropper.channel();
app::Color picked = picker.color();
switch (channel) {
case app::gen::EyedropperChannel::COLOR_ALPHA:
color = picked;
break;
case app::gen::EyedropperChannel::COLOR:
if (picked.getAlpha() > 0)
color = app::Color::fromRgb(picked.getRed(),
picked.getGreen(),
picked.getBlue(),
color.getAlpha());
break;
case app::gen::EyedropperChannel::ALPHA:
switch (color.getType()) {
case app::Color::RgbType:
case app::Color::IndexType:
color = app::Color::fromRgb(color.getRed(),
color.getGreen(),
color.getBlue(),
picked.getAlpha());
break;
case app::Color::HsvType:
color = app::Color::fromHsv(color.getHue(),
color.getSaturation(),
color.getValue(),
picked.getAlpha());
break;
case app::Color::GrayType:
color = app::Color::fromGray(color.getGray(),
picked.getAlpha());
break;
}
break;
case app::gen::EyedropperChannel::RGBA:
if (picked.getType() == app::Color::RgbType)
color = picked;
else
color = app::Color::fromRgb(picked.getRed(),
picked.getGreen(),
picked.getBlue(),
picked.getAlpha());
break;
case app::gen::EyedropperChannel::RGB:
if (picked.getAlpha() > 0)
color = app::Color::fromRgb(picked.getRed(),
picked.getGreen(),
picked.getBlue(),
color.getAlpha());
break;
case app::gen::EyedropperChannel::HSVA:
if (picked.getType() == app::Color::HsvType)
color = picked;
else
color = app::Color::fromHsv(picked.getHue(),
picked.getSaturation(),
picked.getValue(),
picked.getAlpha());
break;
case app::gen::EyedropperChannel::HSV:
if (picked.getAlpha() > 0)
color = app::Color::fromHsv(picked.getHue(),
picked.getSaturation(),
picked.getValue(),
color.getAlpha());
break;
case app::gen::EyedropperChannel::GRAYA:
if (picked.getType() == app::Color::GrayType)
color = picked;
else
color = app::Color::fromGray(picked.getGray(),
picked.getAlpha());
break;
case app::gen::EyedropperChannel::GRAY:
if (picked.getAlpha() > 0)
color = app::Color::fromGray(picked.getGray(),
color.getAlpha());
//.........这里部分代码省略.........