| | 1 | ///////////////////////////////////////////////////////////////////////////// |
| | 2 | // Name: dc.h |
| | 3 | // Purpose: wxDC class |
| | 4 | // Author: Julian Smart |
| | 5 | // Modified by: |
| | 6 | // Created: 17/09/98 |
| | 7 | // RCS-ID: $Id$ |
| | 8 | // Copyright: (c) Julian Smart |
| | 9 | // Licence: wxWindows licence |
| | 10 | ///////////////////////////////////////////////////////////////////////////// |
| | 11 | |
| | 12 | #ifndef _WX_DC_H_ |
| | 13 | #define _WX_DC_H_ |
| | 14 | |
| | 15 | #include "wx/pen.h" |
| | 16 | #include "wx/brush.h" |
| | 17 | #include "wx/icon.h" |
| | 18 | #include "wx/font.h" |
| | 19 | #include "wx/gdicmn.h" |
| | 20 | |
| | 21 | //----------------------------------------------------------------------------- |
| | 22 | // constants |
| | 23 | //----------------------------------------------------------------------------- |
| | 24 | |
| | 25 | #ifndef MM_TEXT |
| | 26 | #define MM_TEXT 0 |
| | 27 | #define MM_ISOTROPIC 1 |
| | 28 | #define MM_ANISOTROPIC 2 |
| | 29 | #define MM_LOMETRIC 3 |
| | 30 | #define MM_HIMETRIC 4 |
| | 31 | #define MM_TWIPS 5 |
| | 32 | #define MM_POINTS 6 |
| | 33 | #define MM_METRIC 7 |
| | 34 | #endif |
| | 35 | |
| | 36 | //----------------------------------------------------------------------------- |
| | 37 | // wxDC |
| | 38 | //----------------------------------------------------------------------------- |
| | 39 | |
| | 40 | class WXDLLEXPORT wxDC : public wxDCBase |
| | 41 | { |
| | 42 | public: |
| | 43 | wxDC(); |
| | 44 | virtual ~wxDC() { } |
| | 45 | |
| | 46 | // implement base class pure virtuals |
| | 47 | // ---------------------------------- |
| | 48 | |
| | 49 | virtual wxSize GetPPI() const; |
| | 50 | |
| | 51 | virtual void SetMapMode(int mode); |
| | 52 | virtual void SetUserScale(double x, double y); |
| | 53 | virtual void SetLogicalScale(double x, double y); |
| | 54 | virtual void SetLogicalOrigin(wxCoord x, wxCoord y); |
| | 55 | virtual void SetDeviceOrigin(wxCoord x, wxCoord y); |
| | 56 | virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp); |
| | 57 | |
| | 58 | protected: |
| | 59 | virtual void DoSetClippingRegion(wxCoord x, wxCoord y, |
| | 60 | wxCoord width, wxCoord height); |
| | 61 | virtual void DoGetSizeMM(int* width, int* height) const; |
| | 62 | |
| | 63 | public: |
| | 64 | virtual void ComputeScaleAndOrigin(); |
| | 65 | |
| | 66 | wxCoord XDEV2LOG(wxCoord x) const |
| | 67 | { |
| | 68 | return wxRound((double)(x - m_deviceOriginX) / m_scaleX) * m_signX + m_logicalOriginX; |
| | 69 | } |
| | 70 | wxCoord XDEV2LOGREL(wxCoord x) const |
| | 71 | { |
| | 72 | return wxRound((double)(x) / m_scaleX); |
| | 73 | } |
| | 74 | wxCoord YDEV2LOG(wxCoord y) const |
| | 75 | { |
| | 76 | return wxRound((double)(y - m_deviceOriginY) / m_scaleY) * m_signY + m_logicalOriginY; |
| | 77 | } |
| | 78 | wxCoord YDEV2LOGREL(wxCoord y) const |
| | 79 | { |
| | 80 | return wxRound((double)(y) / m_scaleY); |
| | 81 | } |
| | 82 | wxCoord XLOG2DEV(wxCoord x) const |
| | 83 | { |
| | 84 | return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX; |
| | 85 | } |
| | 86 | wxCoord XLOG2DEVREL(wxCoord x) const |
| | 87 | { |
| | 88 | return wxRound((double)(x) * m_scaleX); |
| | 89 | } |
| | 90 | wxCoord YLOG2DEV(wxCoord y) const |
| | 91 | { |
| | 92 | return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY; |
| | 93 | } |
| | 94 | wxCoord YLOG2DEVREL(wxCoord y) const |
| | 95 | { |
| | 96 | return wxRound((double)(y) * m_scaleY); |
| | 97 | } |
| | 98 | |
| | 99 | public: |
| | 100 | // not sure what for, but what is a mm on a screen you don't know the size of? |
| | 101 | double m_mm_to_pix_x,m_mm_to_pix_y; |
| | 102 | |
| | 103 | // recompute scale? |
| | 104 | bool m_needComputeScaleX, m_needComputeScaleY; |
| | 105 | |
| | 106 | |
| | 107 | private: |
| | 108 | DECLARE_ABSTRACT_CLASS(wxDC) |
| | 109 | }; |
| | 110 | |
| | 111 | #endif |
| | 112 | // _WX_DC_H_ |
projects / wxWidgets.git / blame_incremental