Method drawSelectedKeysBRect

Gui/DopeSheetView.cpp:1665–1709

* @brief DopeSheetViewPrivate::drawSelectedKeysBRect * * */

 *
 */
void
DopeSheetViewPrivate::drawSelectedKeysBRect() const
{
    running_in_main_thread_and_context(q_ptr);

    // Perform drawing
    {
        GLProtectAttrib a(GL_HINT_BIT | GL_ENABLE_BIT | GL_LINE_BIT | GL_COLOR_BUFFER_BIT | GL_CURRENT_BIT | GL_LINE_BIT);

        glEnable(GL_BLEND);
        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
        glEnable(GL_LINE_SMOOTH);
        glHint(GL_LINE_SMOOTH_HINT, GL_DONT_CARE);

        // Draw outline
        glColor4f(0.5, 0.5, 0.5, 1.);
        glLineWidth(1.5 * _screenPixelRatio);
        glBegin(GL_LINE_LOOP);
        glVertex2f( selectedKeysBRect.left(), selectedKeysBRect.bottom() );
        glVertex2f( selectedKeysBRect.left(), selectedKeysBRect.top() );
        glVertex2f( selectedKeysBRect.right(), selectedKeysBRect.top() );
        glVertex2f( selectedKeysBRect.right(), selectedKeysBRect.bottom() );
        glEnd();

        // Draw center cross lines
        const int CROSS_LINE_OFFSET = 10;
        QPointF bRectCenter( (selectedKeysBRect.x1 + selectedKeysBRect.x2) / 2., (selectedKeysBRect.y1 + selectedKeysBRect.y2) / 2. );
        QPointF bRectCenterWidgetCoords = zoomContext.toWidgetCoordinates( bRectCenter.x(), bRectCenter.y() );
        QLineF horizontalLine( zoomContext.toZoomCoordinates( bRectCenterWidgetCoords.x() - CROSS_LINE_OFFSET, bRectCenterWidgetCoords.y() ),
                               zoomContext.toZoomCoordinates( bRectCenterWidgetCoords.x() + CROSS_LINE_OFFSET, bRectCenterWidgetCoords.y() ) );
        QLineF verticalLine( zoomContext.toZoomCoordinates(bRectCenterWidgetCoords.x(), bRectCenterWidgetCoords.y() - CROSS_LINE_OFFSET),
                             zoomContext.toZoomCoordinates(bRectCenterWidgetCoords.x(), bRectCenterWidgetCoords.y() + CROSS_LINE_OFFSET) );

        glLineWidth(1. * _screenPixelRatio);
        glBegin(GL_LINES);
        glVertex2f( horizontalLine.p1().x(), horizontalLine.p1().y() );
        glVertex2f( horizontalLine.p2().x(), horizontalLine.p2().y() );

        glVertex2f( verticalLine.p1().x(), verticalLine.p1().y() );
        glVertex2f( verticalLine.p2().x(), verticalLine.p2().y() );
        glEnd();

        glCheckError();
    }
}

void
DopeSheetViewPrivate::renderText(double x,