C++ app::Color类代码示例

void HexColorEntry::setColor(const app::Color& color)
{
  m_entry.setTextf("%02x%02x%02x",
                   color.getRed(),
                   color.getGreen(),
                   color.getBlue());
}

ViewProviderMeshNode::ViewProviderMeshNode() : pcOpenEdge(0), m_bEdit(false)
{
  ADD_PROPERTY(LineWidth,(2.0f));
  LineWidth.setConstraints(&floatRange);
  ADD_PROPERTY(PointSize,(2.0f));
  PointSize.setConstraints(&floatRange);
  ADD_PROPERTY(OpenEdges,(false));

  pOpenColor = new SoBaseColor();
  setOpenEdgeColorFrom(ShapeColor.getValue());
  pOpenColor->ref();

  pcLineStyle = new SoDrawStyle();
  pcLineStyle->ref();
  pcLineStyle->style = SoDrawStyle::LINES;
  pcLineStyle->lineWidth = LineWidth.getValue();

  pcPointStyle = new SoDrawStyle();
  pcPointStyle->ref();
  pcPointStyle->style = SoDrawStyle::POINTS;
  pcPointStyle->pointSize = PointSize.getValue();

  // read the correct shape color from the preferences
  Base::Reference<ParameterGrp> hGrp = Gui::WindowParameter::getDefaultParameter()->GetGroup("Mod/Mesh");
  App::Color color = ShapeColor.getValue();
  unsigned long current = color.getPackedValue();
  unsigned long setting = hGrp->GetUnsigned("MeshColor", current);
  if ( current != setting )
  {
    color.setPackedValue((uint32_t)setting);
    ShapeColor.setValue(color);
  }
}

// TODO this code is exactly the same as draw_alpha_slider() with a ui::Graphics
void draw_alpha_slider(she::Surface* s,
                       const gfx::Rect& rc,
                       const app::Color& color)
{
  const int xmax = MAX(1, rc.w-1);
  const doc::color_t c =
    (color.getType() != app::Color::MaskType ?
     doc::rgba(color.getRed(),
               color.getGreen(),
               color.getBlue(), 255): 0);

  for (int x=0; x<rc.w; ++x) {
    const int a = (255 * x / xmax);
    const doc::color_t c1 = doc::rgba_blender_normal(gridColor1, c, a);
    const doc::color_t c2 = doc::rgba_blender_normal(gridColor2, c, a);
    const int mid = rc.h/2;
    const int odd = (x / rc.h) & 1;
    s->drawVLine(
      app::color_utils::color_for_ui(app::Color::fromImage(IMAGE_RGB, odd ? c2: c1)),
      rc.x+x, rc.y, mid);
    s->drawVLine(
      app::color_utils::color_for_ui(app::Color::fromImage(IMAGE_RGB, odd ? c1: c2)),
      rc.x+x, rc.y+mid, rc.h-mid);
  }
}

void RgbSliders::onSetColor(const app::Color& color)
{
  setAbsSliderValue(0, color.getRed());
  setAbsSliderValue(1, color.getGreen());
  setAbsSliderValue(2, color.getBlue());
  setAbsSliderValue(3, color.getAlpha());
}

ViewProviderDimension::ViewProviderDimension()
{
    sPixmap = "TechDraw_Dimension";

    static const char *group = "Dim Format";

    Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
                                         .GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/Labels");
    std::string fontName = hGrp->GetASCII("LabelFont", "osifont");
    hGrp = App::GetApplication().GetUserParameter()
                                         .GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/Dimensions");
    double fontSize = hGrp->GetFloat("FontSize", 3.5);

    ADD_PROPERTY_TYPE(Font ,(fontName.c_str()),group,App::Prop_None, "The name of the font to use");
    ADD_PROPERTY_TYPE(Fontsize,(fontSize)    ,group,(App::PropertyType)(App::Prop_None),"Dimension text size in units");

    hGrp = App::GetApplication().GetUserParameter().GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/Decorations");
    std::string lgName = hGrp->GetASCII("LineGroup","FC 0.70mm");
    auto lg = TechDraw::LineGroup::lineGroupFactory(lgName);
    double weight = lg->getWeight("Thin");
    delete lg;                                   //Coverity CID 174670
    ADD_PROPERTY_TYPE(LineWidth,(weight)    ,group,(App::PropertyType)(App::Prop_None),"Dimension line weight");

    hGrp = App::GetApplication().GetUserParameter()
                                        .GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/Dimensions");
    App::Color fcColor;
    fcColor.setPackedValue(hGrp->GetUnsigned("Color", 0x00000000));
    ADD_PROPERTY_TYPE(Color,(fcColor),group,App::Prop_None,"The color of the Dimension");

}

static 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();

  if (type == app::Color::MaskType) {
    rectgrid(g, rc, gfx::Size(rc.w/4, rc.h/2));
    return;
  }
  else 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));
    }
    return;
  }

  g->fillRect(color_utils::color_for_ui(color), rc);
}

QColor QGCustomText::getSelectColor()
{
    Base::Reference<ParameterGrp> hGrp = getParmGroup();
    App::Color fcColor;
    fcColor.setPackedValue(hGrp->GetUnsigned("SelectColor", 0x00FF0000));
    return fcColor.asValue<QColor>();
}

QColor QGVPage::getBackgroundColor()
{
    Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
                                        .GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/Colors");
    App::Color fcColor;
    fcColor.setPackedValue(hGrp->GetUnsigned("Background", 0x70707000));
    return fcColor.asValue<QColor>();
}

QColor QGIView::getSelectColor()
{
    Base::Reference<ParameterGrp> hGrp = getParmGroupCol();
    App::Color fcColor;
    fcColor.setPackedValue(hGrp->GetUnsigned("SelectColor", 0x00FF0000));
    m_colSel = fcColor.asValue<QColor>();
    return m_colSel;
}

void PropertyColor::setPyObject(PyObject *value)
{
    App::Color cCol;
    if (PyTuple_Check(value) && PyTuple_Size(value) == 3) {
        PyObject* item;
        item = PyTuple_GetItem(value,0);
        if (PyFloat_Check(item))
            cCol.r = (float)PyFloat_AsDouble(item);
        else
            throw Base::Exception("Type in tuple must be float");
        item = PyTuple_GetItem(value,1);
        if (PyFloat_Check(item))
            cCol.g = (float)PyFloat_AsDouble(item);
        else
            throw Base::Exception("Type in tuple must be float");
        item = PyTuple_GetItem(value,2);
        if (PyFloat_Check(item))
            cCol.b = (float)PyFloat_AsDouble(item);
        else
            throw Base::Exception("Type in tuple must be float");
    }
    else if (PyTuple_Check(value) && PyTuple_Size(value) == 4) {
        PyObject* item;
        item = PyTuple_GetItem(value,0);
        if (PyFloat_Check(item))
            cCol.r = (float)PyFloat_AsDouble(item);
        else
            throw Base::Exception("Type in tuple must be float");
        item = PyTuple_GetItem(value,1);
        if (PyFloat_Check(item))
            cCol.g = (float)PyFloat_AsDouble(item);
        else
            throw Base::Exception("Type in tuple must be float");
        item = PyTuple_GetItem(value,2);
        if (PyFloat_Check(item))
            cCol.b = (float)PyFloat_AsDouble(item);
        else
            throw Base::Exception("Type in tuple must be float");
        item = PyTuple_GetItem(value,3);
        if (PyFloat_Check(item))
            cCol.a = (float)PyFloat_AsDouble(item);
        else
            throw Base::Exception("Type in tuple must be float");
    }
    else if (PyLong_Check(value)) {
        cCol.setPackedValue(PyLong_AsUnsignedLong(value));
    }
    else {
        std::string error = std::string("type must be int or tuple of float, not ");
        error += value->ob_type->tp_name;
        throw Py::TypeError(error);
    }

    setValue( cCol );
}

void PaletteEntryEditor::setPaletteEntry(const app::Color& color)
{
    PalettePicks entries;
    getPicks(entries);

    color_t new_pal_color = doc::rgba(color.getRed(),
                                      color.getGreen(),
                                      color.getBlue(), 255);

    Palette* palette = get_current_palette();
    for (int c=0; c<palette->size(); c++) {
        if (entries[c])
            palette->setEntry(c, new_pal_color);
    }
}

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);
  }
}

App::Color Cell::decodeColor(const std::string & color, const App::Color & defaultColor)
{
    if (color.size() == 7 || color.size() == 9) {
        App::Color c;

        if (color[0] != '#')
            return defaultColor;
        unsigned int value = strtoul(color.c_str() + 1, 0, 16);

        if (color.size() == 7)
            value = (value << 8) | 0xff;

        c.setPackedValue(value);
        return c;
    }
    else
        return defaultColor;
}

QColor QGCustomText::getNormalColor()
{
    QColor result;
    QGIView *parent;
    QGraphicsItem* qparent = parentItem();
    if (qparent == nullptr) {
        parent = nullptr;
    } else {
        parent = dynamic_cast<QGIView *> (qparent);
    }

    if (parent != nullptr) {
        result = parent->getNormalColor();
    } else {
        Base::Reference<ParameterGrp> hGrp = getParmGroup();
        App::Color fcColor;
        fcColor.setPackedValue(hGrp->GetUnsigned("NormalColor", 0x00000000));
        result = fcColor.asValue<QColor>();
    }
    return result;
}

raster::color_t color_utils::color_for_layer(const app::Color& color, Layer* layer)
{
  raster::color_t pixel_color;

  if (color.getType() == app::Color::MaskType) {
    pixel_color = layer->getSprite()->getTransparentColor();
  }
  else {
    PixelFormat format = layer->getSprite()->getPixelFormat();
    pixel_color = color_for_image(color, format);
  }

  return fixup_color_for_layer(layer, pixel_color);
}