Method DrawText

trinity/TriDebugTextRenderer.cpp:146–368

-------------------------------------------------------------------------------------- Description: Draws text into current render target. Arguments: font - Font to use string - NULL-terminated string to render rect - Rectangle to use in the render target format - Bitfield of TRI_DFS_... constants color - Color to use for rendering (alpha component is ignored) -------------------------------------

//   color - Color to use for rendering (alpha component is ignored)
// --------------------------------------------------------------------------------------
void TriDebugTextRenderer::DrawText( Tr2RenderContext& renderContext, TriDebugFont font, const char* string, const Tr2Rect& rect, uint32_t format, const Vector4& vecColor )
{
	uint32_t color = Color( vecColor.x, vecColor.y, vecColor.z, vecColor.w );

	if( !Tr2Renderer::IsResourceCreationAllowed() )
	{
		return;
	}

#ifdef WIN32
	if( !m_dc )
	{
		return;
	}

	// Measure actual text size
	HGDIOBJ oldFont = SelectObject( m_dc, m_dcFonts[font] );
	ON_BLOCK_EXIT( [&] { SelectObject( m_dc, oldFont ); } );
	RECT realRect = { rect.left, rect.top, rect.right, rect.bottom };
	::DrawText( m_dc, string, -1, &realRect, format | DT_CALCRECT );
	RECT size = realRect;
	OffsetRect( &size, -size.left, -size.top );
	unsigned width = size.right;
	unsigned height = size.bottom;
	if( width == 0 || height == 0 )
	{
		return;
	}

	if( width > m_bitmapWidth || height > m_bitmapHeight )
	{
		DeleteObject( m_bitmap );
		m_bitmapData = nullptr;
		m_bitmapWidth = max( width, m_bitmapWidth );
		m_bitmapHeight = max( height, m_bitmapHeight );
		HDC screenDC = GetDC( NULL );

		BITMAPINFO info;
		memset( &info, 0, sizeof( info ) );
		info.bmiHeader.biSize = sizeof( info );
		info.bmiHeader.biWidth = m_bitmapWidth;
		info.bmiHeader.biHeight = -int( m_bitmapHeight );
		info.bmiHeader.biPlanes = 1;
		info.bmiHeader.biBitCount = 32;
		info.bmiHeader.biCompression = BI_RGB;
		info.bmiHeader.biSizeImage = 0;
		info.bmiHeader.biXPelsPerMeter = 0;
		info.bmiHeader.biYPelsPerMeter = 0;
		info.bmiHeader.biClrUsed = 0;
		info.bmiHeader.biClrImportant = 0;

		m_bitmap = CreateDIBSection( screenDC, &info, DIB_RGB_COLORS, (void**)&m_bitmapData, nullptr, 0 );
		if( !m_bitmapData )
		{
			DeleteObject( m_bitmap );
			m_bitmapWidth = 0;
			m_bitmapHeight = 0;
			m_bitmap = nullptr;