108 lines
4.4 KiB
C++
108 lines
4.4 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//=============================================================================//
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#include <mxtk/mx.h>
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#include "utlvector.h"
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//-----------------------------------------------------------------------------
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// Purpose: Helper class that automagically sets up and destroys a memory device-
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// context for flicker-free refershes
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//-----------------------------------------------------------------------------
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class CDrawHelper
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{
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public:
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// Construction/destruction
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CDrawHelper( mxWindow *widget);
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CDrawHelper( mxWindow *widget, COLORREF bgColor );
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CDrawHelper( mxWindow *widget, int x, int y, int w, int h, COLORREF bgColor );
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CDrawHelper( mxWindow *widget, RECT& bounds );
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CDrawHelper( mxWindow *widget, RECT& bounds, COLORREF bgColor );
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virtual ~CDrawHelper( void );
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// Allow caller to draw onto the memory dc, too
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HDC GrabDC( void );
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// Compute text size
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static int CalcTextWidth( const char *font, int pointsize, int weight, PRINTF_FORMAT_STRING const char *fmt, ... );
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static int CalcTextWidth( HFONT font, PRINTF_FORMAT_STRING const char *fmt, ... );
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int CalcTextWidthW( const char *font, int pointsize, int weight, PRINTF_FORMAT_STRING const wchar_t *fmt, ... );
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int CalcTextWidthW( HFONT font, PRINTF_FORMAT_STRING const wchar_t *fmt, ... );
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void DrawColoredTextW( const char *font, int pointsize, int weight, COLORREF clr, RECT& rcText, PRINTF_FORMAT_STRING const wchar_t *fmt, ... );
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void DrawColoredTextW( HFONT font, COLORREF clr, RECT& rcText, PRINTF_FORMAT_STRING const wchar_t *fmt, ... );
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void DrawColoredTextCharsetW( const char *font, int pointsize, int weight, DWORD charset, COLORREF clr, RECT& rcText, PRINTF_FORMAT_STRING const wchar_t *fmt, ... );
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void CalcTextRect( const char *font, int pointsize, int weight, int maxwidth, RECT& rcText, PRINTF_FORMAT_STRING const char *fmt, ... );
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// Draw text
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void DrawColoredText( const char *font, int pointsize, int weight, COLORREF clr, RECT& rcText, PRINTF_FORMAT_STRING const char *fmt, ... );
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void DrawColoredText( HFONT font, COLORREF clr, RECT& rcText, PRINTF_FORMAT_STRING const char *fmt, ... );
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void DrawColoredTextCharset( const char *font, int pointsize, int weight, DWORD charset, COLORREF clr, RECT& rcText, PRINTF_FORMAT_STRING const char *fmt, ... );
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void DrawColoredTextMultiline( const char *font, int pointsize, int weight, COLORREF clr, RECT& rcText, PRINTF_FORMAT_STRING const char *fmt, ... );
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// Draw a line
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void DrawColoredLine( COLORREF clr, int style, int width, int x1, int y1, int x2, int y2 );
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void DrawColoredPolyLine( COLORREF clr, int style, int width, CUtlVector< POINT >& points );
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// Draw a blending ramp
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POINTL DrawColoredRamp( COLORREF clr, int style, int width, int x1, int y1, int x2, int y2, float rate, float sustain );
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// Draw a filled rect
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void DrawFilledRect( COLORREF clr, int x1, int y1, int x2, int y2 );
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// Draw an outlined rect
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void DrawOutlinedRect( COLORREF clr, int style, int width, int x1, int y1, int x2, int y2 );
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void DrawOutlinedRect( COLORREF clr, int style, int width, RECT& rc );
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void DrawFilledRect( HBRUSH br, RECT& rc );
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void DrawFilledRect( COLORREF clr, RECT& rc );
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void DrawGradientFilledRect( RECT& rc, COLORREF clr1, COLORREF clr2, bool vertical );
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void DrawLine( int x1, int y1, int x2, int y2, COLORREF clr, int thickness );
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// Draw a triangle
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void DrawTriangleMarker( RECT& rc, COLORREF fill, bool inverted = false );
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void DrawCircle( COLORREF clr, int x, int y, int radius, bool filled = true );
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// Get width/height of draw area
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int GetWidth( void );
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int GetHeight( void );
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// Get client rect for drawing
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void GetClientRect( RECT& rc );
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void StartClipping( RECT& clipRect );
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void StopClipping( void );
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// Remap rect if we're using a clipped viewport
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void OffsetSubRect( RECT& rc );
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private:
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// Internal initializer
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void Init( mxWindow *widget, int x, int y, int w, int h, COLORREF bgColor);
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void ClipToRects( void );
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// The window we are drawing on
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HWND m_hWnd;
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// The final DC
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HDC m_dcReal;
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// The working DC
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HDC m_dcMemory;
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// Client area and offsets
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RECT m_rcClient;
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int m_x, m_y;
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int m_w, m_h;
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// Bitmap for drawing in the memory DC
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HBITMAP m_bmMemory;
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HBITMAP m_bmOld;
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// Remember the original default color
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COLORREF m_clrOld;
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CUtlVector < RECT > m_ClipRects;
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HRGN m_ClipRegion;
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};
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