X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4bc67cc550bcd9d5f93f88ae22a4f6ac7fafb5f7..0d53638f7147c18153f63fdfc096b17be6e22a27:/src/gtk/dc.cpp diff --git a/src/gtk/dc.cpp b/src/gtk/dc.cpp index 44fe792814..9814072bef 100644 --- a/src/gtk/dc.cpp +++ b/src/gtk/dc.cpp @@ -1,374 +1,408 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: dc.cpp +// Name: src/gtk/dc.cpp // 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 ///////////////////////////////////////////////////////////////////////////// +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" -#ifdef __GNUG__ -#pragma implementation "dc.h" -#endif - -#include "wx/dc.h" +#ifdef __WXGTK3__ -//----------------------------------------------------------------------------- -// constants -//----------------------------------------------------------------------------- +#include "wx/window.h" +#include "wx/dcclient.h" +#include "wx/dcmemory.h" +#include "wx/dcscreen.h" +#include "wx/icon.h" +#include "wx/gtk/dc.h" -#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 -//----------------------------------------------------------------------------- -// wxDC -//----------------------------------------------------------------------------- - -IMPLEMENT_ABSTRACT_CLASS(wxDC,wxObject) - -wxDC::wxDC() +wxGTKCairoDCImpl::wxGTKCairoDCImpl(wxDC* owner) + : base_type(owner) { - 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; + m_width = 0; + m_height = 0; } -wxDC::~wxDC() +wxGTKCairoDCImpl::wxGTKCairoDCImpl(wxDC* owner, int) + : base_type(owner, 0) { + m_width = 0; + m_height = 0; } -bool wxDC::Ok() const -{ - 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::DrawPoint( wxPoint& point ) -{ - DrawPoint( point.x, point.y ); -} - -void wxDC::DrawPolygon( wxList *list, long xoffset, long yoffset, int fillStyle ) +wxGTKCairoDCImpl::wxGTKCairoDCImpl(wxDC* owner, wxWindow* window) + : base_type(owner, 0) { - 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_window = window; + m_font = window->GetFont(); + m_textForegroundColour = window->GetForegroundColour(); + m_textBackgroundColour = window->GetBackgroundColour(); + m_width = 0; + m_height = 0; } -void wxDC::DrawLines( wxList *list, long xoffset, long yoffset ) +void wxGTKCairoDCImpl::DoDrawBitmap(const wxBitmap& bitmap, int x, int y, bool useMask) { - int n = list->Number(); - wxPoint *points = new wxPoint[n]; + wxCHECK_RET(IsOk(), "invalid DC"); - int i = 0; - for( wxNode *node = list->First(); node; node = node->Next() ) + cairo_t* cr = NULL; + if (m_graphicContext) + cr = static_cast(m_graphicContext->GetNativeContext()); + if (cr) { - wxPoint *point = (wxPoint *)node->Data(); - points[i].x = point->x; - points[i++].y = point->y; + cairo_save(cr); + bitmap.Draw(cr, x, y, useMask, &m_textForegroundColour, &m_textBackgroundColour); + cairo_restore(cr); } - - DrawLines( n, points, xoffset, yoffset ); - delete []points; } -void wxDC::DrawSpline( long x1, long y1, long x2, long y2, long x3, long y3 ) +void wxGTKCairoDCImpl::DoDrawIcon(const wxIcon& icon, int x, int y) { - 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(); - } + DoDrawBitmap(icon, x, y, true); } -void wxDC::DrawSpline( int n, wxPoint points[] ) -{ - wxList list; - for (int i = 0; i < n; i++) list.Append( (wxObject*)&points[i] ); - DrawSpline( &list ); -} +#if wxUSE_IMAGE +bool wxDoFloodFill(wxDC* dc, int x, int y, const wxColour& col, wxFloodFillStyle style); -void wxDC::SetClippingRegion( long x, long y, long width, long height ) +bool wxGTKCairoDCImpl::DoFloodFill(int x, int y, const wxColour& col, wxFloodFillStyle style) { - m_clipping = TRUE; - m_clipX1 = x; - m_clipY1 = y; - m_clipX2 = x + width; - m_clipY2 = y + height; + return wxDoFloodFill(GetOwner(), x, y, col, style); } +#endif -void wxDC::DestroyClippingRegion() +wxBitmap wxGTKCairoDCImpl::DoGetAsBitmap(const wxRect* /*subrect*/) const { - m_clipping = FALSE; + wxFAIL_MSG("DoGetAsBitmap not implemented"); + return wxBitmap(); } -void wxDC::GetClippingBox( long *x, long *y, long *width, long *height ) const +bool wxGTKCairoDCImpl::DoGetPixel(int x, int y, wxColour* col) const { - if (m_clipping) + if (col) { - if (x) *x = m_clipX1; - if (y) *y = m_clipY1; - if (width) *width = (m_clipX2 - m_clipX1); - if (height) *height = (m_clipY2 - m_clipY1); + cairo_t* cr = NULL; + if (m_graphicContext) + cr = static_cast(m_graphicContext->GetNativeContext()); + if (cr) + { + cairo_surface_t* surface = cairo_get_target(cr); + x = LogicalToDeviceX(x); + y = LogicalToDeviceY(y); + GdkPixbuf* pixbuf = gdk_pixbuf_get_from_surface(surface, x, y, 1, 1); + if (pixbuf) + { + const guchar* src = gdk_pixbuf_get_pixels(pixbuf); + col->Set(src[0], src[1], src[2]); + g_object_unref(pixbuf); + return true; + } + *col = wxColour(); + } + } + return false; +} + +void wxGTKCairoDCImpl::DoGetSize(int* width, int* height) const +{ + if (width) + *width = m_width; + if (height) + *height = m_height; +} + +bool wxGTKCairoDCImpl::DoStretchBlit(int xdest, int ydest, int dstWidth, int dstHeight, wxDC* source, int xsrc, int ysrc, int srcWidth, int srcHeight, wxRasterOperationMode rop, bool useMask, int xsrcMask, int ysrcMask) +{ + wxCHECK_MSG(IsOk(), false, "invalid DC"); + wxCHECK_MSG(source && source->IsOk(), false, "invalid source DC"); + + cairo_t* cr = NULL; + if (m_graphicContext) + cr = static_cast(m_graphicContext->GetNativeContext()); + cairo_t* cr_src = NULL; + wxGraphicsContext* gc_src = source->GetGraphicsContext(); + if (gc_src) + cr_src = static_cast(gc_src->GetNativeContext()); + + if (cr == NULL || cr_src == NULL) + return false; + + const int xsrc_dev = source->LogicalToDeviceX(xsrc); + const int ysrc_dev = source->LogicalToDeviceY(ysrc); + + cairo_surface_t* surface = cairo_get_target(cr_src); + cairo_surface_flush(surface); + cairo_save(cr); + cairo_translate(cr, xdest, ydest); + cairo_rectangle(cr, 0, 0, dstWidth, dstHeight); + double sx, sy; + source->GetUserScale(&sx, &sy); + cairo_scale(cr, dstWidth / (sx * srcWidth), dstHeight / (sy * srcHeight)); + cairo_set_source_surface(cr, surface, -xsrc_dev, -ysrc_dev); + const wxRasterOperationMode rop_save = m_logicalFunction; + SetLogicalFunction(rop); + cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST); + cairo_surface_t* maskSurf = NULL; + if (useMask) + { + const wxBitmap& bitmap = source->GetImpl()->GetSelectedBitmap(); + if (bitmap.IsOk()) + { + wxMask* mask = bitmap.GetMask(); + if (mask) + maskSurf = *mask; + } + } + if (maskSurf) + { + int xsrcMask_dev = xsrc_dev; + int ysrcMask_dev = ysrc_dev; + if (xsrcMask != -1) + xsrcMask_dev = source->LogicalToDeviceX(xsrcMask); + if (ysrcMask != -1) + ysrcMask_dev = source->LogicalToDeviceY(ysrcMask); + cairo_clip(cr); + cairo_mask_surface(cr, maskSurf, -xsrcMask_dev, -ysrcMask_dev); } else { - *x = *y = *width = *height = 0; + cairo_fill(cr); } + cairo_restore(cr); + m_logicalFunction = rop_save; + return true; } -void wxDC::GetSize( int* width, int* height ) const -{ - if (width) *width = m_maxX-m_minX; - if (height) *height = m_maxY-m_minY; -} - -void wxDC::GetSizeMM( long* width, long* height ) const -{ - int w = 0; - int h = 0; - GetSize( &w, &h ); - if (width) *width = long( double(w) / (m_scaleX*m_mm_to_pix_x) ); - if (height) *height = long( double(h) / (m_scaleY*m_mm_to_pix_y) ); -} - -void wxDC::SetTextForeground( const wxColour &col ) +void* wxGTKCairoDCImpl::GetCairoContext() const { - m_textForegroundColour = col; + cairo_t* cr = NULL; + if (m_graphicContext) + cr = static_cast(m_graphicContext->GetNativeContext()); + if (cr) + cairo_reference(cr); + return cr; } +//----------------------------------------------------------------------------- -void wxDC::SetTextBackground( const wxColour &col ) +wxWindowDCImpl::wxWindowDCImpl(wxWindowDC* owner, wxWindow* window) + : base_type(owner, window) { - m_textBackgroundColour = col; + GtkWidget* widget = window->m_wxwindow; + if (widget == NULL) + widget = window->m_widget; + GdkWindow* gdkWindow = NULL; + if (widget) + { + gdkWindow = gtk_widget_get_window(widget); + m_ok = true; + } + if (gdkWindow) + { + cairo_t* cr = gdk_cairo_create(gdkWindow); + SetGraphicsContext(wxGraphicsContext::CreateFromNative(cr)); + GtkAllocation a; + gtk_widget_get_allocation(widget, &a); + int x, y; + if (gtk_widget_get_has_window(widget)) + { + m_width = gdk_window_get_width(gdkWindow); + m_height = gdk_window_get_height(gdkWindow); + x = m_width - a.width; + y = m_height - a.height; + } + else + { + m_width = a.width; + m_height = a.height; + x = a.x; + y = a.y; + cairo_rectangle(cr, a.x, a.y, a.width, a.height); + cairo_clip(cr); + } + if (x || y) + SetDeviceLocalOrigin(x, y); + } + else + SetGraphicsContext(wxGraphicsContext::Create()); } +//----------------------------------------------------------------------------- -void wxDC::SetMapMode( int mode ) +wxClientDCImpl::wxClientDCImpl(wxClientDC* owner, wxWindow* window) + : base_type(owner, window) { - switch (mode) + GtkWidget* widget = window->m_wxwindow; + if (widget == NULL) + widget = window->m_widget; + GdkWindow* gdkWindow = NULL; + if (widget) { - 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; + gdkWindow = gtk_widget_get_window(widget); + m_ok = true; } -/* we don't do this mega optimisation - if (mode != MM_TEXT) + if (gdkWindow) { - m_needComputeScaleX = TRUE; - m_needComputeScaleY = TRUE; + cairo_t* cr = gdk_cairo_create(gdkWindow); + SetGraphicsContext(wxGraphicsContext::CreateFromNative(cr)); + if (gtk_widget_get_has_window(widget)) + { + m_width = gdk_window_get_width(gdkWindow); + m_height = gdk_window_get_height(gdkWindow); + } + else + { + GtkAllocation a; + gtk_widget_get_allocation(widget, &a); + m_width = a.width; + m_height = a.height; + cairo_rectangle(cr, a.x, a.y, a.width, a.height); + cairo_clip(cr); + SetDeviceLocalOrigin(a.x, a.y); + } } -*/ + else + SetGraphicsContext(wxGraphicsContext::Create()); } +//----------------------------------------------------------------------------- -void wxDC::SetUserScale( double x, double y ) +wxPaintDCImpl::wxPaintDCImpl(wxPaintDC* owner, wxWindow* window) + : base_type(owner, window) { - // allow negative ? -> no - m_userScaleX = x; - m_userScaleY = y; - ComputeScaleAndOrigin(); + cairo_t* cr = window->GTKPaintContext(); + wxCHECK_RET(cr, "using wxPaintDC without being in a native paint event"); + GdkWindow* gdkWindow = gtk_widget_get_window(window->m_wxwindow); + m_width = gdk_window_get_width(gdkWindow); + m_height = gdk_window_get_height(gdkWindow); + cairo_reference(cr); + SetGraphicsContext(wxGraphicsContext::CreateFromNative(cr)); } +//----------------------------------------------------------------------------- -void wxDC::GetUserScale( double *x, double *y ) +wxScreenDCImpl::wxScreenDCImpl(wxScreenDC* owner) + : base_type(owner, 0) { - if (x) *x = m_userScaleX; - if (y) *y = m_userScaleY; + GdkWindow* window = gdk_get_default_root_window(); + m_width = gdk_window_get_width(window); + m_height = gdk_window_get_height(window); + cairo_t* cr = gdk_cairo_create(window); + SetGraphicsContext(wxGraphicsContext::CreateFromNative(cr)); } +//----------------------------------------------------------------------------- -void wxDC::SetLogicalScale( double x, double y ) +wxMemoryDCImpl::wxMemoryDCImpl(wxMemoryDC* owner) + : base_type(owner) { - // allow negative ? - m_logicalScaleX = x; - m_logicalScaleY = y; - ComputeScaleAndOrigin(); + m_ok = false; } -void wxDC::GetLogicalScale( double *x, double *y ) +wxMemoryDCImpl::wxMemoryDCImpl(wxMemoryDC* owner, wxBitmap& bitmap) + : base_type(owner, 0) + , m_bitmap(bitmap) { - if (x) *x = m_logicalScaleX; - if (y) *y = m_logicalScaleY; + Setup(); } -void wxDC::SetLogicalOrigin( long x, long y ) +wxMemoryDCImpl::wxMemoryDCImpl(wxMemoryDC* owner, wxDC*) + : base_type(owner) { - m_logicalOriginX = x * m_signX; // is this still correct ? - m_logicalOriginY = y * m_signY; - ComputeScaleAndOrigin(); + m_ok = false; } -void wxDC::GetLogicalOrigin( long *x, long *y ) +wxBitmap wxMemoryDCImpl::DoGetAsBitmap(const wxRect* subrect) const { - if (x) *x = m_logicalOriginX; - if (y) *y = m_logicalOriginY; + return subrect ? m_bitmap.GetSubBitmap(*subrect) : m_bitmap; } -void wxDC::SetDeviceOrigin( long x, long y ) +void wxMemoryDCImpl::DoSelect(const wxBitmap& bitmap) { - // only wxPostScripDC has m_signX = -1, we override SetDeviceOrigin there - m_deviceOriginX = x; - m_deviceOriginY = y; - ComputeScaleAndOrigin(); + m_bitmap = bitmap; + Setup(); } -void wxDC::GetDeviceOrigin( long *x, long *y ) +const wxBitmap& wxMemoryDCImpl::GetSelectedBitmap() const { - if (x) *x = m_deviceOriginX; - if (y) *y = m_deviceOriginY; + return m_bitmap; } -void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp ) +wxBitmap& wxMemoryDCImpl::GetSelectedBitmap() { - // only wxPostScripDC has m_signX = -1, we override SetAxisOrientation there - m_signX = (xLeftRight ? 1 : -1); - m_signY = (yBottomUp ? -1 : 1); - ComputeScaleAndOrigin(); + return m_bitmap; } -long wxDC::DeviceToLogicalX(long x) const +void wxMemoryDCImpl::Setup() { - return XDEV2LOG(x); + wxGraphicsContext* gc = NULL; + m_ok = m_bitmap.IsOk(); + if (m_ok) + { + m_width = m_bitmap.GetWidth(); + m_height = m_bitmap.GetHeight(); + cairo_t* cr = m_bitmap.CairoCreate(); + gc = wxGraphicsContext::CreateFromNative(cr); + } + SetGraphicsContext(gc); } +//----------------------------------------------------------------------------- -long wxDC::DeviceToLogicalY(long y) const +wxGTKCairoDC::wxGTKCairoDC(cairo_t* cr) + : base_type(new wxGTKCairoDCImpl(this, 0)) { - return YDEV2LOG(y); + cairo_reference(cr); + SetGraphicsContext(wxGraphicsContext::CreateFromNative(cr)); } -long wxDC::DeviceToLogicalXRel(long x) const -{ - return XDEV2LOGREL(x); -} +#else -long wxDC::DeviceToLogicalYRel(long y) const -{ - return YDEV2LOGREL(y); -} +#include "wx/gtk/dc.h" -long wxDC::LogicalToDeviceX(long x) const -{ - return XLOG2DEV(x); -} +//----------------------------------------------------------------------------- +// wxGTKDCImpl +//----------------------------------------------------------------------------- + +IMPLEMENT_ABSTRACT_CLASS(wxGTKDCImpl, wxDCImpl) -long wxDC::LogicalToDeviceY(long y) const +wxGTKDCImpl::wxGTKDCImpl( wxDC *owner ) + : wxDCImpl( owner ) { - return YLOG2DEV(y); + m_ok = FALSE; + + m_pen = *wxBLACK_PEN; + m_font = *wxNORMAL_FONT; + m_brush = *wxWHITE_BRUSH; } -long wxDC::LogicalToDeviceXRel(long x) const +wxGTKDCImpl::~wxGTKDCImpl() { - return XLOG2DEVREL(x); } -long wxDC::LogicalToDeviceYRel(long y) const +void wxGTKDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) { - return YLOG2DEVREL(y); + m_clipping = TRUE; + m_clipX1 = x; + m_clipY1 = y; + m_clipX2 = x + width; + m_clipY2 = y + height; } - -void wxDC::CalcBoundingBox( long x, long y ) + +// --------------------------------------------------------------------------- +// get DC capabilities +// --------------------------------------------------------------------------- + +void wxGTKDCImpl::DoGetSizeMM( int* width, int* height ) 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; + int w = 0; + int h = 0; + GetOwner()->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::ComputeScaleAndOrigin() +// Resolution in pixels per logical inch +wxSize wxGTKDCImpl::GetPPI() 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 - // It gives an Assert, Robert Roebling -/* - wxPen pen = m_pen; - m_pen = wxNullPen; - SetPen( pen ); -*/ - } + // TODO (should probably be pure virtual) + return wxSize(0, 0); } - +#endif