Method drawMinimap

src/eepp/ui/uicodeeditor.cpp:4993–5373

};

void UICodeEditor::drawMinimap( const Vector2f& start, const DocumentLineRange&,
								const DocumentViewLineRange& visibleLineRange ) {
	Float charHeight = PixelDensity::getPixelDensity() * mMinimapConfig.scale;
	Float charSpacing =
		eemax( 1.f, eefloor( 0.8 * PixelDensity::getPixelDensity() * mMinimapConfig.scale ) );
	Float lineSpacing = getMinimapLineSpacing();
	Rectf rect( getMinimapRect( start ) );
	Int64 visibleLinesCount = ( static_cast<Int64>( visibleLineRange.second ) -
								static_cast<Int64>( visibleLineRange.first ) );
	Int64 visibleLinesStart = static_cast<Int64>( visibleLineRange.first );
	Float scrollerHeight = visibleLinesCount * lineSpacing;
	Int64 lineCount = getTotalVisibleLines();
	Float visibleY = rect.Top + visibleLinesStart * lineSpacing;
	Int64 maxMinmapLines = eefloor( rect.getHeight() / lineSpacing );
	Int64 minimapStartLine = 0;

	if ( isMinimapFileTooLarge() && visibleLinesCount ) {
		Float scrollPos = static_cast<Float>( visibleLinesStart - 1 ) /
						  (Float)( lineCount - visibleLinesCount - 1 );
		scrollPos = eeclamp( scrollPos, 0.f, 1.f );
		Float scrollPosPixels = scrollPos * ( rect.getHeight() - scrollerHeight );
		visibleY = rect.Top + scrollPosPixels;
		Float t = ( lineCount - visibleLinesStart ) / visibleLinesCount;
		if ( t <= 1 )
			visibleY += scrollerHeight * ( 1.f - t );
		minimapStartLine = visibleLinesStart - eefloor( scrollPosPixels / lineSpacing );
		minimapStartLine = eemax( 0ll, eemin( minimapStartLine, lineCount - maxMinmapLines ) );
	}

	// Disable multi-sample to avoid rectangle-smoothing
	bool disableMultisample = !mMinimapConfig.allowSmoothing && GLi->isMultisample();
	ScopedOp op(
		[disableMultisample] {
			if ( disableMultisample )
				GLi->multisample( false );
		},
		[disableMultisample] {
			if ( disableMultisample )
				GLi->multisample( true );
		} );

	GlobalBatchRenderer* BR = GlobalBatchRenderer::instance();
	BR->setTexture( nullptr );
	BR->setBlendMode( BlendMode::Alpha() );
	BR->quadsBegin();

	if ( mMinimapConfig.drawBackground ) {
		BR->quadsSetColor( Color( mMinimapBackgroundColor ).blendAlpha( mAlpha ) );
		BR->batchQuad( rect );
	}

	BR->quadsSetColor( Color( mMinimapVisibleAreaColor ).blendAlpha( mAlpha ) );
	BR->batchQuad( { { rect.Left, visibleY }, Sizef( rect.getWidth(), scrollerHeight ) } );
	if ( mMinimapHover || mMinimapDragging ) {
		BR->quadsSetColor( Color( mMinimapHoverColor ).blendAlpha( mAlpha ) );
		BR->batchQuad( { { rect.Left, visibleY }, Sizef( rect.getWidth(), scrollerHeight ) } );
	}