C++ TextLayout::draw方法代码示例

void ProjucerLookAndFeel::drawTabButton (TabBarButton& button, Graphics& g, bool isMouseOver, bool isMouseDown)
{
    const auto area = button.getActiveArea();
    auto backgroundColour = findColour (button.isFrontTab() ? secondaryBackgroundColourId
                                                            : inactiveTabBackgroundColourId);
    auto iconColour = findColour (button.isFrontTab() ? activeTabIconColourId
                                                      : inactiveTabIconColourId);

    g.setColour (backgroundColour);
    g.fillRect (area);

    const auto alpha = button.isEnabled() ? ((isMouseOver || isMouseDown) ? 1.0f : 0.8f) : 0.3f;

   #ifndef BUILDING_JUCE_COMPILEENGINE
    if (button.getName() == "Project")
    {
        auto icon = Icon (getIcons().closedFolder, iconColour.withMultipliedAlpha (alpha));
        icon.draw (g, button.getTextArea().reduced (8, 8).toFloat(), false);
    }
    else if (button.getName() == "Build")
    {
        auto icon = Icon (getIcons().buildTab, iconColour.withMultipliedAlpha (alpha));
        icon.draw (g, button.getTextArea().reduced (8, 8).toFloat(), false);
    }
    else
   #endif
    {
        auto textColour = findColour (defaultTextColourId).withMultipliedAlpha (alpha);

        TextLayout textLayout;
        LookAndFeel_V3::createTabTextLayout (button, (float) area.getWidth(), (float) area.getHeight(), textColour, textLayout);

        textLayout.draw (g, button.getTextArea().toFloat());
    }
}

void CabbageIDELookAndFeel::drawAlertBox (Graphics& g,
                                          AlertWindow& alert,
                                          const Rectangle<int>& textArea,
                                          TextLayout& textLayout)
{
    g.fillAll (CabbageSettings::getColourFromValueTree (colourTree, CabbageColourIds::alertWindowBackground, Colour (Colour::fromString("2ff52636a"))));

    int iconSpaceUsed = 160;

    if (alert.getAlertType() != AlertWindow::NoIcon)
    {
        Path icon;

        if (alert.getAlertType() == AlertWindow::WarningIcon)
        {
            Rectangle<float> rect (alert.getLocalBounds().removeFromLeft (iconSpaceUsed).toFloat());

            const Image warningImage = ImageCache::getFromMemory (CabbageBinaryData::WarningIcon_png, CabbageBinaryData::WarningIcon_pngSize);
            //g.drawImage(warningImage, rect.reduced(20));
        }

        if (alert.getAlertType() == AlertWindow::QuestionIcon)
        {
            Rectangle<float> rect (alert.getLocalBounds().removeFromLeft (iconSpaceUsed - 20).toFloat());
            const Image warningImage = ImageCache::getFromMemory (CabbageBinaryData::WarningIcon_png, CabbageBinaryData::WarningIcon_pngSize);
            //g.drawImage(warningImage, rect.reduced(25));
        }

        MemoryInputStream svgStream (CabbageBinaryData::processstop_svg, CabbageBinaryData::processstop_svgSize, false);
        ScopedPointer<XmlElement> svg (XmlDocument::parse (svgStream.readString()));

        if (svg == nullptr)
            jassert (false);

        ScopedPointer<Drawable> drawable;

        if (svg != nullptr)
        {
            drawable = Drawable::createFromSVG (*svg);
            Rectangle<float> rect (20, 20, 80, 80);//alert.getLocalBounds().removeFromLeft (iconSpaceUsed - 20).withHeight(130).toFloat());
            drawable->setTransformToFit (rect, RectanglePlacement::stretchToFit);
            drawable->draw (g, 1.f, AffineTransform());
        }
    }


    g.setColour (alert.findColour (AlertWindow::textColourId));
    textLayout.draw (g, Rectangle<int> (textArea.getX() + iconSpaceUsed - 50,
                                        textArea.getY(),
                                        textArea.getWidth() - iconSpaceUsed - 40,
                                        textArea.getHeight()).toFloat());

    g.setColour (alert.findColour (AlertWindow::outlineColourId));
    g.drawRect (0, 0, alert.getWidth(), alert.getHeight());
}

void AttributedString::draw (Graphics& g, const Rectangle<float>& area) const
{
    if (text.isNotEmpty() && g.clipRegionIntersects (area.getSmallestIntegerContainer()))
    {
        if (! g.getInternalContext()->drawTextLayout (*this, area))
        {
            TextLayout layout;
            layout.createLayout (*this, area.getWidth());
            layout.draw (g, area);
        }
    }
}

void CtrlrLuaMethodEditorTabsLF::drawTabButton (TabBarButton& button, Graphics& g, bool isMouseOver, bool isMouseDown)
{
	const Rectangle<int> activeArea (button.getActiveArea());

    const TabbedButtonBar::Orientation o = button.getTabbedButtonBar().getOrientation();

    const Colour bkg (button.getTabBackgroundColour());

    if (button.getToggleState())
    {
        g.setColour (bkg);
    }
    else
    {
        Point<int> p1, p2;

        switch (o)
        {
            case TabbedButtonBar::TabsAtBottom:   p1 = activeArea.getBottomLeft(); p2 = activeArea.getTopLeft();    break;
            case TabbedButtonBar::TabsAtTop:      p1 = activeArea.getTopLeft();    p2 = activeArea.getBottomLeft(); break;
            case TabbedButtonBar::TabsAtRight:    p1 = activeArea.getTopRight();   p2 = activeArea.getTopLeft();    break;
            case TabbedButtonBar::TabsAtLeft:     p1 = activeArea.getTopLeft();    p2 = activeArea.getTopRight();   break;
            default:                              jassertfalse; break;
        }

        g.setGradientFill (ColourGradient (bkg.brighter (0.2f), (float) p1.x, (float) p1.y,
                                           bkg.darker (0.1f),   (float) p2.x, (float) p2.y, false));
    }

    g.fillRect (activeArea);

    g.setColour (button.findColour (TabbedButtonBar::tabOutlineColourId));

    Rectangle<int> r (activeArea);

    if (o != TabbedButtonBar::TabsAtBottom)   g.fillRect (r.removeFromTop (1));
    if (o != TabbedButtonBar::TabsAtTop)      g.fillRect (r.removeFromBottom (1));
    if (o != TabbedButtonBar::TabsAtRight)    g.fillRect (r.removeFromLeft (1));
    if (o != TabbedButtonBar::TabsAtLeft)     g.fillRect (r.removeFromRight (1));

    const float alpha = button.isEnabled() ? ((isMouseOver || isMouseDown) ? 1.0f : 0.8f) : 0.3f;

    Colour col (bkg.contrasting().withMultipliedAlpha (alpha));

    if (TabbedButtonBar* bar = button.findParentComponentOfClass<TabbedButtonBar>())
    {
        TabbedButtonBar::ColourIds colID = button.isFrontTab() ? TabbedButtonBar::frontTextColourId
                                                               : TabbedButtonBar::tabTextColourId;

        if (bar->isColourSpecified (colID))
            col = bar->findColour (colID);
        else if (isColourSpecified (colID))
            col = findColour (colID);
    }

    const Rectangle<float> area (button.getTextArea().toFloat());

    float length = area.getWidth();
    float depth  = area.getHeight();

    if (button.getTabbedButtonBar().isVertical())
        std::swap (length, depth);

    TextLayout textLayout;
    createTabTextLayout (button, length, depth, col, textLayout);

    AffineTransform t;

    switch (o)
    {
        case TabbedButtonBar::TabsAtLeft:   t = t.rotated (float_Pi * -0.5f).translated (area.getX(), area.getBottom()); break;
        case TabbedButtonBar::TabsAtRight:  t = t.rotated (float_Pi *  0.5f).translated (area.getRight(), area.getY()); break;
        case TabbedButtonBar::TabsAtTop:
        case TabbedButtonBar::TabsAtBottom: t = t.translated (area.getX(), area.getY()); break;
        default:                            jassertfalse; break;
    }

    g.addTransform (t);
    textLayout.draw (g, Rectangle<float> (length, depth));
}