void paintComponent()
{
// you mustn't set your own cached image object when attaching a GL context!
jassert (get (component) == this);
updateViewportSize (false);
if (! ensureFrameBufferSize())
return;
RectangleList invalid (viewportArea);
invalid.subtract (validArea);
validArea = viewportArea;
if (! invalid.isEmpty())
{
clearRegionInFrameBuffer (invalid, (float) scale);
{
ScopedPointer<LowLevelGraphicsContext> g (createOpenGLGraphicsContext (context, cachedImageFrameBuffer));
g->addTransform (AffineTransform::scale ((float) scale));
g->clipToRectangleList (invalid);
paintOwner (*g);
JUCE_CHECK_OPENGL_ERROR
}
if (! context.isActive())
context.makeActive();
}
void drawBackground2DStuff()
{
// Create an OpenGLGraphicsContext that will draw into this GL window..
ScopedPointer<LowLevelGraphicsContext> glRenderer (createOpenGLGraphicsContext (openGLContext,
getContextWidth(),
getContextHeight()));
if (glRenderer != nullptr)
{
Graphics g (glRenderer);
g.addTransform (AffineTransform::scale ((float) getScale()));
// This stuff just creates a spinning star shape and fills it..
Path p;
const float scale = getHeight() * 0.4f;
p.addStar (Point<float> (getWidth() * 0.7f, getHeight() * 0.4f), 7,
scale * (float) sizeSlider.getValue(), scale,
rotation / 50.0f);
g.setGradientFill (ColourGradient (Colours::green.withRotatedHue (fabsf (::sinf (rotation / 300.0f))),
0, 0,
Colours::green.withRotatedHue (fabsf (::cosf (rotation / -431.0f))),
0, (float) getHeight(), false));
g.fillPath (p);
}
}
void renderOpenGL2D()
{
LeapUtilGL::GLAttribScope attribScope( GL_ENABLE_BIT );
// when enabled text draws poorly.
glDisable(GL_CULL_FACE);
ScopedPointer<LowLevelGraphicsContext> glRenderer (createOpenGLGraphicsContext (m_openGLContext, getWidth(), getHeight()));
if (glRenderer != nullptr)
{
Graphics g(glRenderer);
int iMargin = 10;
int iFontSize = static_cast<int>(m_fixedFont.getHeight());
int iLineStep = iFontSize + (iFontSize >> 2);
int iBaseLine = 20;
Font origFont = g.getCurrentFont();
const Rectangle<int>& rectBounds = getBounds();
if ( m_bShowHelp )
{
g.setColour( Colours::seagreen );
g.setFont( static_cast<float>(iFontSize) );
if ( !m_bPaused )
{
g.drawSingleLineText( m_strUpdateFPS, iMargin, iBaseLine );
}
g.drawSingleLineText( m_strRenderFPS, iMargin, iBaseLine + iLineStep );
g.setFont( m_fixedFont );
g.setColour( Colours::slateblue );
g.drawMultiLineText( m_strHelp,
iMargin,
iBaseLine + iLineStep * 3,
rectBounds.getWidth() - iMargin*2 );
}
g.setFont( origFont );
g.setFont( static_cast<float>(iFontSize) );
g.setColour( Colours::salmon );
g.drawMultiLineText( m_strPrompt,
iMargin,
rectBounds.getBottom() - (iFontSize + iFontSize + iLineStep),
rectBounds.getWidth()/4 );
}
void paintComponent()
{
if (needsUpdate)
{
MessageManagerLock mm (this);
if (! mm.lockWasGained())
return;
needsUpdate = false;
// you mustn't set your own cached image object when attaching a GL context!
jassert (get (component) == this);
const Rectangle<int> bounds (component.getLocalBounds());
if (! ensureFrameBufferSize (bounds.getWidth(), bounds.getHeight()))
return;
RectangleList invalid (bounds);
invalid.subtract (validArea);
validArea = bounds;
if (! invalid.isEmpty())
{
clearRegionInFrameBuffer (invalid);
{
ScopedPointer<LowLevelGraphicsContext> g (createOpenGLGraphicsContext (context, cachedImageFrameBuffer));
g->clipToRectangleList (invalid);
paintOwner (*g);
JUCE_CHECK_OPENGL_ERROR
}
if (! context.isActive())
context.makeActive();
}
JUCE_CHECK_OPENGL_ERROR
}
void LOpenGLComponent::renderOpenGL() {
if(hasCallback("renderOpenGL")) {
const float desktopScale = (float) openGLContext.getRenderingScale();
ScopedPointer<LowLevelGraphicsContext> glRenderer(
createOpenGLGraphicsContext ( openGLContext,
roundToInt (desktopScale * Component::getWidth()),
roundToInt (desktopScale * Component::getHeight()) )
);
if(glRenderer != nullptr) {
Graphics g(*glRenderer);
g.addTransform (AffineTransform::scale (desktopScale));
LGraphics lg(LUA::Get(), g);
callback( "renderOpenGL", 1, { new LRefBase("Graphics", &lg) } );
if(! LUA::isEmpty())
renderGLSL(g);
else
lua_pop(LUA::Get(), 1);
}
else {
callback("renderOpenGL");
}
}
}
LowLevelGraphicsContext* createLowLevelContext() override
{
return createOpenGLGraphicsContext (context, frameBuffer);
}
LowLevelGraphicsContext* createLowLevelContext() override
{
sendDataChangeMessage();
return createOpenGLGraphicsContext (context, frameBuffer);
}