d3c7fc996a
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41020 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
141 lines
4.1 KiB
C++
141 lines
4.1 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: dc.h
|
|
// Purpose: wxDC class
|
|
// Author: Julian Smart
|
|
// Modified by:
|
|
// Created: 17/09/98
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) Julian Smart
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_DC_H_
|
|
#define _WX_DC_H_
|
|
|
|
#include "wx/pen.h"
|
|
#include "wx/brush.h"
|
|
#include "wx/icon.h"
|
|
#include "wx/font.h"
|
|
#include "wx/gdicmn.h"
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// constants
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#ifndef MM_TEXT
|
|
#define MM_TEXT 0
|
|
#define MM_ISOTROPIC 1
|
|
#define MM_ANISOTROPIC 2
|
|
#define MM_LOMETRIC 3
|
|
#define MM_HIMETRIC 4
|
|
#define MM_TWIPS 5
|
|
#define MM_POINTS 6
|
|
#define MM_METRIC 7
|
|
#endif
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// wxDC
|
|
//-----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxDC : public wxDCBase
|
|
{
|
|
public:
|
|
wxDC();
|
|
virtual ~wxDC() { }
|
|
|
|
// implement base class pure virtuals
|
|
// ----------------------------------
|
|
|
|
virtual wxSize GetPPI() const;
|
|
|
|
virtual void SetMapMode(int mode);
|
|
virtual void SetUserScale(double x, double y);
|
|
virtual void SetLogicalScale(double x, double y);
|
|
virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
|
|
virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
|
|
virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
|
|
|
|
protected:
|
|
virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
|
|
wxCoord width, wxCoord height);
|
|
virtual void DoGetSizeMM(int* width, int* height) const;
|
|
|
|
public:
|
|
virtual void ComputeScaleAndOrigin();
|
|
|
|
wxCoord XDEV2LOG(wxCoord x) const
|
|
{
|
|
wxCoord new_x = x - m_deviceOriginX;
|
|
if (new_x > 0)
|
|
return (wxCoord)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
|
|
else
|
|
return (wxCoord)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
|
|
}
|
|
wxCoord XDEV2LOGREL(wxCoord x) const
|
|
{
|
|
if (x > 0)
|
|
return (wxCoord)((double)(x) / m_scaleX + 0.5);
|
|
else
|
|
return (wxCoord)((double)(x) / m_scaleX - 0.5);
|
|
}
|
|
wxCoord YDEV2LOG(wxCoord y) const
|
|
{
|
|
wxCoord new_y = y - m_deviceOriginY;
|
|
if (new_y > 0)
|
|
return (wxCoord)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
|
|
else
|
|
return (wxCoord)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
|
|
}
|
|
wxCoord YDEV2LOGREL(wxCoord y) const
|
|
{
|
|
if (y > 0)
|
|
return (wxCoord)((double)(y) / m_scaleY + 0.5);
|
|
else
|
|
return (wxCoord)((double)(y) / m_scaleY - 0.5);
|
|
}
|
|
wxCoord XLOG2DEV(wxCoord x) const
|
|
{
|
|
wxCoord new_x = x - m_logicalOriginX;
|
|
if (new_x > 0)
|
|
return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
|
|
else
|
|
return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
|
|
}
|
|
wxCoord XLOG2DEVREL(wxCoord x) const
|
|
{
|
|
if (x > 0)
|
|
return (wxCoord)((double)(x) * m_scaleX + 0.5);
|
|
else
|
|
return (wxCoord)((double)(x) * m_scaleX - 0.5);
|
|
}
|
|
wxCoord YLOG2DEV(wxCoord y) const
|
|
{
|
|
wxCoord new_y = y - m_logicalOriginY;
|
|
if (new_y > 0)
|
|
return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
|
|
else
|
|
return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
|
|
}
|
|
wxCoord YLOG2DEVREL(wxCoord y) const
|
|
{
|
|
if (y > 0)
|
|
return (wxCoord)((double)(y) * m_scaleY + 0.5);
|
|
else
|
|
return (wxCoord)((double)(y) * m_scaleY - 0.5);
|
|
}
|
|
|
|
public:
|
|
// not sure what for, but what is a mm on a screen you don't know the size of?
|
|
double m_mm_to_pix_x,m_mm_to_pix_y;
|
|
|
|
// recompute scale?
|
|
bool m_needComputeScaleX, m_needComputeScaleY;
|
|
|
|
|
|
private:
|
|
DECLARE_ABSTRACT_CLASS(wxDC)
|
|
};
|
|
|
|
#endif
|
|
// _WX_DC_H_
|