// Name: dc.cpp
// Purpose:
// Author: Robert Roebling
-// Created: 01/02/97
// RCS-ID: $Id$
-// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// Copyright: (c) 1998 Robert Roebling, Markus Holzem
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include "wx/dc.h"
+#include "gdk/gdk.h"
+#include "gtk/gtk.h"
+
//-----------------------------------------------------------------------------
// constants
//-----------------------------------------------------------------------------
IMPLEMENT_ABSTRACT_CLASS(wxDC,wxObject)
-wxDC::wxDC(void)
+wxDC::wxDC()
{
- m_ok = FALSE;
- m_optimize = FALSE;
- m_autoSetting = FALSE;
- m_colour = TRUE;
- m_clipping = FALSE;
+ m_ok = FALSE;
+ m_optimize = FALSE;
+ m_autoSetting = FALSE;
+ m_colour = TRUE;
+ m_clipping = FALSE;
- m_mm_to_pix_x = 1.0;
- m_mm_to_pix_y = 1.0;
+ m_mm_to_pix_x = 1.0;
+ m_mm_to_pix_y = 1.0;
- m_logicalOriginX = 0;
- m_logicalOriginY = 0;
- m_deviceOriginX = 0;
- m_deviceOriginY = 0;
+ m_logicalOriginX = 0;
+ m_logicalOriginY = 0;
+ m_deviceOriginX = 0;
+ m_deviceOriginY = 0;
- m_logicalScaleX = 1.0;
- m_logicalScaleY = 1.0;
- m_userScaleX = 1.0;
- m_userScaleY = 1.0;
- m_scaleX = 1.0;
- m_scaleY = 1.0;
+ m_logicalScaleX = 1.0;
+ m_logicalScaleY = 1.0;
+ m_userScaleX = 1.0;
+ m_userScaleY = 1.0;
+ m_scaleX = 1.0;
+ m_scaleY = 1.0;
- m_mappingMode = MM_TEXT;
- m_needComputeScaleX = FALSE;
- m_needComputeScaleY = FALSE;
+ m_mappingMode = wxMM_TEXT;
+ m_needComputeScaleX = FALSE; /* not used yet */
+ m_needComputeScaleY = FALSE; /* not used yet */
- m_signX = 1; // default x-axis left to right
- m_signY = 1; // default y-axis top down
+ m_signX = 1; /* default x-axis left to right */
+ m_signY = 1; /* default y-axis top down. -1 in postscript. */
- m_maxX = m_maxY = -100000;
- m_minY = m_minY = 100000;
+ m_maxX = 0;
+ m_maxY = 0;
+ m_minX = 0;
+ m_minY = 0;
- m_logicalFunction = wxCOPY;
+ m_logicalFunction = wxCOPY;
// m_textAlignment = wxALIGN_TOP_LEFT;
- m_backgroundMode = wxTRANSPARENT;
+ m_backgroundMode = wxTRANSPARENT;
- m_textForegroundColour = *wxBLACK;
- m_textBackgroundColour = *wxWHITE;
- m_pen = *wxBLACK_PEN;
- m_font = *wxNORMAL_FONT;
- m_brush = *wxTRANSPARENT_BRUSH;
- m_backgroundBrush = *wxWHITE_BRUSH;
+ m_textForegroundColour = *wxBLACK;
+ m_textBackgroundColour = *wxWHITE;
+ m_pen = *wxBLACK_PEN;
+ m_font = *wxNORMAL_FONT;
+ m_brush = *wxTRANSPARENT_BRUSH;
+ m_backgroundBrush = *wxWHITE_BRUSH;
-// m_palette = wxAPP_COLOURMAP;
+// m_palette = wxAPP_COLOURMAP; /* I'll learn to handle palettes later in my life */
}
-wxDC::~wxDC(void)
+wxDC::~wxDC()
{
}
-bool wxDC::Ok(void) const
+bool wxDC::Ok() const
{
- wxASSERT_MSG( m_ok, "invalid display context" );
- return m_ok;
+ return m_ok;
}
void wxDC::DrawArc( long WXUNUSED(x1), long WXUNUSED(y1), long WXUNUSED(x2), long WXUNUSED(y2),
{
}
-void wxDC::DrawIcon( const wxIcon &WXUNUSED(icon), long WXUNUSED(x), long WXUNUSED(y), bool WXUNUSED(useMask) )
-{
-}
-
void wxDC::DrawPoint( wxPoint& point )
{
- DrawPoint( point.x, point.y );
+ DrawPoint( point.x, point.y );
}
void wxDC::DrawPolygon( wxList *list, long xoffset, long yoffset, int fillStyle )
{
- int n = list->Number();
- wxPoint *points = new wxPoint[n];
+ int n = list->Number();
+ wxPoint *points = new wxPoint[n];
- int i = 0;
- for( wxNode *node = list->First(); node; node = node->Next() )
- {
- wxPoint *point = (wxPoint *)node->Data();
- points[i].x = point->x;
- points[i++].y = point->y;
- }
- DrawPolygon( n, points, xoffset, yoffset, fillStyle );
- delete[] points;
+ int i = 0;
+ for( wxNode *node = list->First(); node; node = node->Next() )
+ {
+ wxPoint *point = (wxPoint *)node->Data();
+ points[i].x = point->x;
+ points[i++].y = point->y;
+ }
+
+ DrawPolygon( n, points, xoffset, yoffset, fillStyle );
+ delete[] points;
}
void wxDC::DrawLines( wxList *list, long xoffset, long yoffset )
{
- int n = list->Number();
- wxPoint *points = new wxPoint[n];
+ int n = list->Number();
+ wxPoint *points = new wxPoint[n];
- int i = 0;
- for( wxNode *node = list->First(); node; node = node->Next() )
- {
- wxPoint *point = (wxPoint *)node->Data();
- points[i].x = point->x;
- points[i++].y = point->y;
- }
- DrawLines( n, points, xoffset, yoffset );
- delete []points;
+ int i = 0;
+ for( wxNode *node = list->First(); node; node = node->Next() )
+ {
+ wxPoint *point = (wxPoint *)node->Data();
+ points[i].x = point->x;
+ points[i++].y = point->y;
+ }
+
+ DrawLines( n, points, xoffset, yoffset );
+ delete []points;
}
void wxDC::DrawSpline( long x1, long y1, long x2, long y2, long x3, long y3 )
{
- wxList list;
- list.Append( (wxObject*)new wxPoint(x1, y1) );
- list.Append( (wxObject*)new wxPoint(x2, y2) );
- list.Append( (wxObject*)new wxPoint(x3, y3) );
- DrawSpline(&list);
- wxNode *node = list.First();
- while (node)
- {
- wxPoint *p = (wxPoint*)node->Data();
- delete p;
- node = node->Next();
- }
+ wxList list;
+ list.Append( (wxObject*)new wxPoint(x1, y1) );
+ list.Append( (wxObject*)new wxPoint(x2, y2) );
+ list.Append( (wxObject*)new wxPoint(x3, y3) );
+ DrawSpline(&list);
+ wxNode *node = list.First();
+ while (node)
+ {
+ wxPoint *p = (wxPoint*)node->Data();
+ delete p;
+ node = node->Next();
+ }
}
void wxDC::DrawSpline( int n, wxPoint points[] )
{
- wxList list;
- for (int i = 0; i < n; i++) list.Append( (wxObject*)&points[i] );
- DrawSpline( &list );
+ wxList list;
+ for (int i = 0; i < n; i++) list.Append( (wxObject*)&points[i] );
+ DrawSpline( &list );
}
void wxDC::SetClippingRegion( long x, long y, long width, long height )
{
- m_clipping = TRUE;
- m_clipX1 = x;
- m_clipY1 = y;
- m_clipX2 = x + width;
- m_clipY2 = y + height;
+ m_clipping = TRUE;
+ m_clipX1 = x;
+ m_clipY1 = y;
+ m_clipX2 = x + width;
+ m_clipY2 = y + height;
}
-void wxDC::DestroyClippingRegion(void)
+void wxDC::DestroyClippingRegion()
{
- m_clipping = FALSE;
+ m_clipping = FALSE;
}
void wxDC::GetClippingBox( long *x, long *y, long *width, long *height ) const
{
- if (m_clipping)
- {
- if (x) *x = m_clipX1;
- if (y) *y = m_clipY1;
- if (width) *width = (m_clipX2 - m_clipX1);
- if (height) *height = (m_clipY2 - m_clipY1);
- }
- else
- *x = *y = *width = *height = 0;
+ if (m_clipping)
+ {
+ if (x) *x = m_clipX1;
+ if (y) *y = m_clipY1;
+ if (width) *width = (m_clipX2 - m_clipX1);
+ if (height) *height = (m_clipY2 - m_clipY1);
+ }
+ else
+ {
+ *x = *y = *width = *height = 0;
+ }
}
void wxDC::GetSize( int* width, int* height ) const
{
- *width = m_maxX-m_minX;
- *height = m_maxY-m_minY;
+ if (width) *width = m_maxX-m_minX;
+ if (height) *height = m_maxY-m_minY;
}
-void wxDC::GetSizeMM( long* width, long* height ) const
+void wxDC::GetSizeMM( int* width, int* height ) const
{
- int w = 0;
- int h = 0;
- GetSize( &w, &h );
- *width = long( double(w) / (m_scaleX*m_mm_to_pix_x) );
- *height = long( double(h) / (m_scaleY*m_mm_to_pix_y) );
+ int w = 0;
+ int h = 0;
+ GetSize( &w, &h );
+ if (width) *width = int( double(w) / (m_scaleX*m_mm_to_pix_x) );
+ if (height) *height = int( double(h) / (m_scaleY*m_mm_to_pix_y) );
+}
+
+// Resolution in pixels per logical inch
+wxSize wxDC::GetPPI(void) const
+{
+ // TODO (should probably be pure virtual)
+ return wxSize(0, 0);
}
void wxDC::SetTextForeground( const wxColour &col )
{
- if (!Ok()) return;
- m_textForegroundColour = col;
+ m_textForegroundColour = col;
}
void wxDC::SetTextBackground( const wxColour &col )
{
- if (!Ok()) return;
- m_textBackgroundColour = col;
+ m_textBackgroundColour = col;
}
void wxDC::SetMapMode( int mode )
{
- switch (mode)
- {
- case MM_TWIPS:
- SetLogicalScale( twips2mm*m_mm_to_pix_x, twips2mm*m_mm_to_pix_y );
- break;
- case MM_POINTS:
- SetLogicalScale( pt2mm*m_mm_to_pix_x, pt2mm*m_mm_to_pix_y );
- break;
- case MM_METRIC:
- SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
- break;
- case MM_LOMETRIC:
- SetLogicalScale( m_mm_to_pix_x/10.0, m_mm_to_pix_y/10.0 );
- break;
- default:
- case MM_TEXT:
- SetLogicalScale( 1.0, 1.0 );
- break;
- }
- if (mode != MM_TEXT)
- {
- m_needComputeScaleX = TRUE;
- m_needComputeScaleY = TRUE;
- }
+ switch (mode)
+ {
+ case wxMM_TWIPS:
+ SetLogicalScale( twips2mm*m_mm_to_pix_x, twips2mm*m_mm_to_pix_y );
+ break;
+ case wxMM_POINTS:
+ SetLogicalScale( pt2mm*m_mm_to_pix_x, pt2mm*m_mm_to_pix_y );
+ break;
+ case wxMM_METRIC:
+ SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
+ break;
+ case wxMM_LOMETRIC:
+ SetLogicalScale( m_mm_to_pix_x/10.0, m_mm_to_pix_y/10.0 );
+ break;
+ default:
+ case wxMM_TEXT:
+ SetLogicalScale( 1.0, 1.0 );
+ break;
+ }
+/* we don't do this mega optimisation
+ if (mode != wxMM_TEXT)
+ {
+ m_needComputeScaleX = TRUE;
+ m_needComputeScaleY = TRUE;
+ }
+*/
}
void wxDC::SetUserScale( double x, double y )
{
- // allow negative ? -> no
- m_userScaleX = x;
- m_userScaleY = y;
- ComputeScaleAndOrigin();
+ // allow negative ? -> no
+ m_userScaleX = x;
+ m_userScaleY = y;
+ ComputeScaleAndOrigin();
}
void wxDC::GetUserScale( double *x, double *y )
{
- if (x) *x = m_userScaleX;
- if (y) *y = m_userScaleY;
+ if (x) *x = m_userScaleX;
+ if (y) *y = m_userScaleY;
}
void wxDC::SetLogicalScale( double x, double y )
{
- // allow negative ?
- m_logicalScaleX = x;
- m_logicalScaleY = y;
- ComputeScaleAndOrigin();
+ // allow negative ?
+ m_logicalScaleX = x;
+ m_logicalScaleY = y;
+ ComputeScaleAndOrigin();
}
void wxDC::GetLogicalScale( double *x, double *y )
{
- if (x) *x = m_logicalScaleX;
- if (y) *y = m_logicalScaleY;
+ if (x) *x = m_logicalScaleX;
+ if (y) *y = m_logicalScaleY;
}
void wxDC::SetLogicalOrigin( long x, long y )
{
- m_logicalOriginX = x * m_signX; // is this still correct ?
- m_logicalOriginY = y * m_signY;
- ComputeScaleAndOrigin();
+ m_logicalOriginX = x * m_signX; // is this still correct ?
+ m_logicalOriginY = y * m_signY;
+ ComputeScaleAndOrigin();
}
void wxDC::GetLogicalOrigin( long *x, long *y )
{
- if (x) *x = m_logicalOriginX;
- if (y) *y = m_logicalOriginY;
+ if (x) *x = m_logicalOriginX;
+ if (y) *y = m_logicalOriginY;
}
void wxDC::SetDeviceOrigin( long x, long y )
{
- m_deviceOriginX = x;
- m_deviceOriginY = y;
- ComputeScaleAndOrigin();
+ // only wxPostScripDC has m_signX = -1, we override SetDeviceOrigin there
+ m_deviceOriginX = x;
+ m_deviceOriginY = y;
+ ComputeScaleAndOrigin();
}
void wxDC::GetDeviceOrigin( long *x, long *y )
{
- if (x) *x = m_deviceOriginX;
- if (y) *y = m_deviceOriginY;
+ if (x) *x = m_deviceOriginX;
+ if (y) *y = m_deviceOriginY;
}
void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
{
- m_signX = (xLeftRight ? 1 : -1);
- m_signY = (yBottomUp ? -1 : 1);
- ComputeScaleAndOrigin();
+ // only wxPostScripDC has m_signX = -1, we override SetAxisOrientation there
+ m_signX = (xLeftRight ? 1 : -1);
+ m_signY = (yBottomUp ? -1 : 1);
+ ComputeScaleAndOrigin();
}
long wxDC::DeviceToLogicalX(long x) const
{
- return XDEV2LOG(x);
+ return XDEV2LOG(x);
}
long wxDC::DeviceToLogicalY(long y) const
{
- return YDEV2LOG(y);
+ return YDEV2LOG(y);
}
long wxDC::DeviceToLogicalXRel(long x) const
{
- return XDEV2LOGREL(x);
+ return XDEV2LOGREL(x);
}
long wxDC::DeviceToLogicalYRel(long y) const
{
- return YDEV2LOGREL(y);
+ return YDEV2LOGREL(y);
}
long wxDC::LogicalToDeviceX(long x) const
{
- return XLOG2DEV(x);
+ return XLOG2DEV(x);
}
long wxDC::LogicalToDeviceY(long y) const
{
- return YLOG2DEV(y);
+ return YLOG2DEV(y);
}
long wxDC::LogicalToDeviceXRel(long x) const
{
- return XLOG2DEVREL(x);
+ return XLOG2DEVREL(x);
}
long wxDC::LogicalToDeviceYRel(long y) const
{
- return YLOG2DEVREL(y);
+ return YLOG2DEVREL(y);
}
void wxDC::CalcBoundingBox( long x, long y )
{
- if (x < m_minX) m_minX = x;
- if (y < m_minY) m_minY = y;
- if (x > m_maxX) m_maxX = x;
- if (y > m_maxY) m_maxY = y;
+ if (x < m_minX) m_minX = x;
+ if (y < m_minY) m_minY = y;
+ if (x > m_maxX) m_maxX = x;
+ if (y > m_maxY) m_maxY = y;
}
-void wxDC::ComputeScaleAndOrigin(void)
+void wxDC::ComputeScaleAndOrigin()
{
- // CMB: copy scale to see if it changes
- double origScaleX = m_scaleX;
- double origScaleY = m_scaleY;
+ // CMB: copy scale to see if it changes
+ double origScaleX = m_scaleX;
+ double origScaleY = m_scaleY;
- m_scaleX = m_logicalScaleX * m_userScaleX;
- m_scaleY = m_logicalScaleY * m_userScaleY;
+ m_scaleX = m_logicalScaleX * m_userScaleX;
+ m_scaleY = m_logicalScaleY * m_userScaleY;
- // CMB: if scale has changed call SetPen to recalulate the line width
- if (m_scaleX != origScaleX || m_scaleY != origScaleY)
- {
- // this is a bit artificial, but we need to force wxDC to think
- // the pen has changed
- wxPen* pen = GetPen();
- wxPen tempPen;
- m_pen = tempPen;
- SetPen(pen);
+ // CMB: if scale has changed call SetPen to recalulate the line width
+ if (m_scaleX != origScaleX || m_scaleY != origScaleY)
+ {
+ // this is a bit artificial, but we need to force wxDC to think
+ // the pen has changed
+ // It gives an Assert, Robert Roebling
+/*
+ wxPen pen = m_pen;
+ m_pen = wxNullPen;
+ SetPen( pen );
+*/
}
}
projects / wxWidgets.git / blobdiff