X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/265898fd794beb9dc11b0fc85e081f9babdc7085..1de8d512b7c844d67b2dab36addc89868e68c9b6:/src/gtk1/dc.cpp diff --git a/src/gtk1/dc.cpp b/src/gtk1/dc.cpp index 6c939ef83c..80d08c5b01 100644 --- a/src/gtk1/dc.cpp +++ b/src/gtk1/dc.cpp @@ -3,371 +3,194 @@ // Purpose: // Author: Robert Roebling // RCS-ID: $Id$ -// Copyright: (c) 1998 Robert Roebling, Markus Holzem -// Licence: wxWindows licence +// Copyright: (c) 1998 Robert Roebling +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// - -#ifdef __GNUG__ -#pragma implementation "dc.h" -#endif +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" #include "wx/dc.h" -//----------------------------------------------------------------------------- -// constants -//----------------------------------------------------------------------------- - -#define mm2inches 0.0393700787402 -#define inches2mm 25.4 -#define mm2twips 56.6929133859 -#define twips2mm 0.0176388888889 -#define mm2pt 2.83464566929 -#define pt2mm 0.352777777778 +#include +#include //----------------------------------------------------------------------------- // wxDC //----------------------------------------------------------------------------- -IMPLEMENT_ABSTRACT_CLASS(wxDC,wxObject) - -wxDC::wxDC(void) -{ - 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_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_mappingMode = MM_TEXT; - m_needComputeScaleX = FALSE; - m_needComputeScaleY = FALSE; - - m_signX = 1; // default x-axis left to right - m_signY = 1; // default y-axis top down - - m_maxX = m_maxY = -100000; - m_minY = m_minY = 100000; - - m_logicalFunction = wxCOPY; -// m_textAlignment = wxALIGN_TOP_LEFT; - 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_palette = wxAPP_COLOURMAP; -} - -wxDC::~wxDC(void) -{ -} - -bool wxDC::Ok(void) const -{ - wxASSERT_MSG( m_ok, "invalid display context" ); - return m_ok; -} - -void wxDC::DrawArc( long WXUNUSED(x1), long WXUNUSED(y1), long WXUNUSED(x2), long WXUNUSED(y2), - double WXUNUSED(xc), double WXUNUSED(yc) ) -{ -} - -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 ); -} +IMPLEMENT_ABSTRACT_CLASS(wxDC, wxDCBase) -void wxDC::DrawPolygon( wxList *list, long xoffset, long yoffset, int fillStyle ) +wxDC::wxDC() { - 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; -} + m_ok = FALSE; -void wxDC::DrawLines( wxList *list, long xoffset, long yoffset ) -{ - 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; -} + m_mm_to_pix_x = (double)wxGetDisplaySize().GetWidth() / + (double)wxGetDisplaySizeMM().GetWidth(); + m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() / + (double)wxGetDisplaySizeMM().GetHeight(); -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(); - } -} + m_needComputeScaleX = FALSE; /* not used yet */ + m_needComputeScaleY = FALSE; /* not used yet */ -void wxDC::DrawSpline( int n, wxPoint points[] ) -{ - wxList list; - for (int i = 0; i < n; i++) list.Append( (wxObject*)&points[i] ); - DrawSpline( &list ); -} + m_logicalFunction = wxCOPY; -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_pen = *wxBLACK_PEN; + m_font = *wxNORMAL_FONT; + m_brush = *wxWHITE_BRUSH; } -void wxDC::DestroyClippingRegion(void) +void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) { - m_clipping = FALSE; + m_clipping = TRUE; + m_clipX1 = x; + m_clipY1 = y; + m_clipX2 = x + width; + m_clipY2 = y + height; } -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; -} +// --------------------------------------------------------------------------- +// get DC capabilities +// --------------------------------------------------------------------------- -void wxDC::GetSize( int* width, int* height ) const +void wxDC::DoGetSizeMM( int* width, int* height ) const { - *width = m_maxX-m_minX; - *height = m_maxY-m_minY; + int w = 0; + int h = 0; + GetSize( &w, &h ); + if (width) *width = int( double(w) / (m_userScaleX*m_mm_to_pix_x) ); + if (height) *height = int( double(h) / (m_userScaleY*m_mm_to_pix_y) ); } -void wxDC::GetSizeMM( long* width, long* height ) const +// Resolution in pixels per logical inch +wxSize wxDC::GetPPI() 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) ); + // TODO (should probably be pure virtual) + return wxSize(0, 0); } -void wxDC::SetTextForeground( const wxColour &col ) -{ - if (!Ok()) return; - m_textForegroundColour = col; -} +// --------------------------------------------------------------------------- +// set various DC parameters +// --------------------------------------------------------------------------- -void wxDC::SetTextBackground( const wxColour &col ) +void wxDC::ComputeScaleAndOrigin() { - if (!Ok()) return; - m_textBackgroundColour = col; + m_scaleX = m_logicalScaleX * m_userScaleX; + m_scaleY = m_logicalScaleY * m_userScaleY; } 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; + } + m_mappingMode = mode; + +/* 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(); -} - -void wxDC::GetUserScale( double *x, double *y ) -{ - if (x) *x = m_userScaleX; - if (y) *y = m_userScaleY; + // allow negative ? -> no + m_userScaleX = x; + m_userScaleY = y; + ComputeScaleAndOrigin(); } void wxDC::SetLogicalScale( double x, double y ) { - // 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; -} - -void wxDC::SetLogicalOrigin( long x, long y ) -{ - 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; + // allow negative ? + m_logicalScaleX = x; + m_logicalScaleY = y; + ComputeScaleAndOrigin(); } -void wxDC::SetDeviceOrigin( long x, long y ) +void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y ) { - m_deviceOriginX = x; - m_deviceOriginY = y; - ComputeScaleAndOrigin(); + m_logicalOriginX = x * m_signX; // is this still correct ? + m_logicalOriginY = y * m_signY; + ComputeScaleAndOrigin(); } -void wxDC::GetDeviceOrigin( long *x, long *y ) +void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y ) { - if (x) *x = m_deviceOriginX; - if (y) *y = m_deviceOriginY; + // only wxPostScripDC has m_signX = -1, we override SetDeviceOrigin there + m_deviceOriginX = x; + m_deviceOriginY = y; + ComputeScaleAndOrigin(); } 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); -} +// --------------------------------------------------------------------------- +// coordinates transformations +// --------------------------------------------------------------------------- -long wxDC::DeviceToLogicalY(long y) const +wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const { - return YDEV2LOG(y); + return ((wxDC *)this)->XDEV2LOG(x); } -long wxDC::DeviceToLogicalXRel(long x) const +wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const { - return XDEV2LOGREL(x); + return ((wxDC *)this)->YDEV2LOG(y); } -long wxDC::DeviceToLogicalYRel(long y) const +wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const { - return YDEV2LOGREL(y); + return ((wxDC *)this)->XDEV2LOGREL(x); } -long wxDC::LogicalToDeviceX(long x) const +wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const { - return XLOG2DEV(x); + return ((wxDC *)this)->YDEV2LOGREL(y); } -long wxDC::LogicalToDeviceY(long y) const +wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const { - return YLOG2DEV(y); + return ((wxDC *)this)->XLOG2DEV(x); } -long wxDC::LogicalToDeviceXRel(long x) const +wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const { - return XLOG2DEVREL(x); + return ((wxDC *)this)->YLOG2DEV(y); } -long wxDC::LogicalToDeviceYRel(long y) const -{ - return YLOG2DEVREL(y); -} - -void wxDC::CalcBoundingBox( long x, long y ) +wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const { - 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; + return ((wxDC *)this)->XLOG2DEVREL(x); } -void wxDC::ComputeScaleAndOrigin(void) +wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const { - // 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; - - // 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 - // Using this code, wxDC will ignore the new settings - // so it's complete non-sense, Robert Roebling TODO!! - wxPen* pen = GetPen(); - wxPen tempPen; - m_pen = tempPen; - SetPen(pen); - } + return ((wxDC *)this)->YLOG2DEVREL(y); }