X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/071a2d78147df569d57b1ef138ab126a586b594d..0d53638f7147c18153f63fdfc096b17be6e22a27:/src/gtk/dc.cpp diff --git a/src/gtk/dc.cpp b/src/gtk/dc.cpp index da0b27c97a..9814072bef 100644 --- a/src/gtk/dc.cpp +++ b/src/gtk/dc.cpp @@ -1,218 +1,408 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: dc.cpp +// Name: src/gtk/dc.cpp // Purpose: // Author: Robert Roebling -// RCS-ID: $Id$ -// Copyright: (c) 1998 Robert Roebling, Markus Holzem +// 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 +#ifdef __WXGTK3__ -#include "wx/dc.h" +#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" -#include #include -//----------------------------------------------------------------------------- -// 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 +wxGTKCairoDCImpl::wxGTKCairoDCImpl(wxDC* owner) + : base_type(owner) +{ + m_width = 0; + m_height = 0; +} -//----------------------------------------------------------------------------- -// wxDC -//----------------------------------------------------------------------------- +wxGTKCairoDCImpl::wxGTKCairoDCImpl(wxDC* owner, int) + : base_type(owner, 0) +{ + m_width = 0; + m_height = 0; +} -IMPLEMENT_ABSTRACT_CLASS(wxDC, wxDCBase) +wxGTKCairoDCImpl::wxGTKCairoDCImpl(wxDC* owner, wxWindow* window) + : base_type(owner, 0) +{ + m_window = window; + m_font = window->GetFont(); + m_textForegroundColour = window->GetForegroundColour(); + m_textBackgroundColour = window->GetBackgroundColour(); + m_width = 0; + m_height = 0; +} -wxDC::wxDC() +void wxGTKCairoDCImpl::DoDrawBitmap(const wxBitmap& bitmap, int x, int y, bool useMask) { - m_ok = FALSE; + wxCHECK_RET(IsOk(), "invalid DC"); - m_mm_to_pix_x = 1.0; - m_mm_to_pix_y = 1.0; + cairo_t* cr = NULL; + if (m_graphicContext) + cr = static_cast(m_graphicContext->GetNativeContext()); + if (cr) + { + cairo_save(cr); + bitmap.Draw(cr, x, y, useMask, &m_textForegroundColour, &m_textBackgroundColour); + cairo_restore(cr); + } +} - m_needComputeScaleX = FALSE; /* not used yet */ - m_needComputeScaleY = FALSE; /* not used yet */ +void wxGTKCairoDCImpl::DoDrawIcon(const wxIcon& icon, int x, int y) +{ + DoDrawBitmap(icon, x, y, true); +} - m_logicalFunction = wxCOPY; +#if wxUSE_IMAGE +bool wxDoFloodFill(wxDC* dc, int x, int y, const wxColour& col, wxFloodFillStyle style); - m_pen = *wxBLACK_PEN; - m_font = *wxNORMAL_FONT; - m_brush = *wxWHITE_BRUSH; +bool wxGTKCairoDCImpl::DoFloodFill(int x, int y, const wxColour& col, wxFloodFillStyle style) +{ + return wxDoFloodFill(GetOwner(), x, y, col, style); } +#endif -void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) +wxBitmap wxGTKCairoDCImpl::DoGetAsBitmap(const wxRect* /*subrect*/) const { - m_clipping = TRUE; - m_clipX1 = x; - m_clipY1 = y; - m_clipX2 = x + width; - m_clipY2 = y + height; + wxFAIL_MSG("DoGetAsBitmap not implemented"); + return wxBitmap(); } -void wxDC::DestroyClippingRegion() +bool wxGTKCairoDCImpl::DoGetPixel(int x, int y, wxColour* col) const { - m_clipping = FALSE; + if (col) + { + 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; } -// --------------------------------------------------------------------------- -// get DC capabilities -// --------------------------------------------------------------------------- - -void wxDC::DoGetSize( int* width, int* height ) const +void wxGTKCairoDCImpl::DoGetSize(int* width, int* height) const { - if (width) *width = m_maxX-m_minX; - if (height) *height = m_maxY-m_minY; + if (width) + *width = m_width; + if (height) + *height = m_height; } -void wxDC::DoGetSizeMM( int* width, int* height ) const +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) { - 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) ); + 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 + { + cairo_fill(cr); + } + cairo_restore(cr); + m_logicalFunction = rop_save; + return true; } -// Resolution in pixels per logical inch -wxSize wxDC::GetPPI() const +void* wxGTKCairoDCImpl::GetCairoContext() const { - // TODO (should probably be pure virtual) - return wxSize(0, 0); + cairo_t* cr = NULL; + if (m_graphicContext) + cr = static_cast(m_graphicContext->GetNativeContext()); + if (cr) + cairo_reference(cr); + return cr; } +//----------------------------------------------------------------------------- -// --------------------------------------------------------------------------- -// set various DC parameters -// --------------------------------------------------------------------------- - -void wxDC::ComputeScaleAndOrigin() +wxWindowDCImpl::wxWindowDCImpl(wxWindowDC* owner, wxWindow* window) + : base_type(owner, window) { - m_scaleX = m_logicalScaleX * m_userScaleX; - m_scaleY = m_logicalScaleY * m_userScaleY; + 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 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; + gdkWindow = gtk_widget_get_window(widget); + m_ok = true; } - m_mappingMode = mode; - -/* we don't do this mega optimisation - if (mode != wxMM_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::SetLogicalScale( double x, double y ) +wxScreenDCImpl::wxScreenDCImpl(wxScreenDC* owner) + : base_type(owner, 0) { - // allow negative ? - m_logicalScaleX = x; - m_logicalScaleY = y; - ComputeScaleAndOrigin(); + 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::SetLogicalOrigin( wxCoord x, wxCoord y ) +wxMemoryDCImpl::wxMemoryDCImpl(wxMemoryDC* owner) + : base_type(owner) { - m_logicalOriginX = x * m_signX; // is this still correct ? - m_logicalOriginY = y * m_signY; - ComputeScaleAndOrigin(); + m_ok = false; } -void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y ) +wxMemoryDCImpl::wxMemoryDCImpl(wxMemoryDC* owner, wxBitmap& bitmap) + : base_type(owner, 0) + , m_bitmap(bitmap) { - // only wxPostScripDC has m_signX = -1, we override SetDeviceOrigin there - m_deviceOriginX = x; - m_deviceOriginY = y; - ComputeScaleAndOrigin(); + Setup(); } -void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp ) +wxMemoryDCImpl::wxMemoryDCImpl(wxMemoryDC* owner, wxDC*) + : base_type(owner) { - // only wxPostScripDC has m_signX = -1, we override SetAxisOrientation there - m_signX = (xLeftRight ? 1 : -1); - m_signY = (yBottomUp ? -1 : 1); - ComputeScaleAndOrigin(); + m_ok = false; } -// --------------------------------------------------------------------------- -// coordinates transformations -// --------------------------------------------------------------------------- +wxBitmap wxMemoryDCImpl::DoGetAsBitmap(const wxRect* subrect) const +{ + return subrect ? m_bitmap.GetSubBitmap(*subrect) : m_bitmap; +} -wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const +void wxMemoryDCImpl::DoSelect(const wxBitmap& bitmap) { - return ((wxDC *)this)->XDEV2LOG(x); + m_bitmap = bitmap; + Setup(); } -wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const +const wxBitmap& wxMemoryDCImpl::GetSelectedBitmap() const { - return ((wxDC *)this)->YDEV2LOG(y); + return m_bitmap; } -wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const +wxBitmap& wxMemoryDCImpl::GetSelectedBitmap() { - return ((wxDC *)this)->XDEV2LOGREL(x); + return m_bitmap; } -wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const +void wxMemoryDCImpl::Setup() { - return ((wxDC *)this)->YDEV2LOGREL(y); + 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); } +//----------------------------------------------------------------------------- -wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const +wxGTKCairoDC::wxGTKCairoDC(cairo_t* cr) + : base_type(new wxGTKCairoDCImpl(this, 0)) { - return ((wxDC *)this)->XLOG2DEV(x); + cairo_reference(cr); + SetGraphicsContext(wxGraphicsContext::CreateFromNative(cr)); } -wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const +#else + +#include "wx/gtk/dc.h" + +//----------------------------------------------------------------------------- +// wxGTKDCImpl +//----------------------------------------------------------------------------- + +IMPLEMENT_ABSTRACT_CLASS(wxGTKDCImpl, wxDCImpl) + +wxGTKDCImpl::wxGTKDCImpl( wxDC *owner ) + : wxDCImpl( owner ) { - return ((wxDC *)this)->YLOG2DEV(y); + m_ok = FALSE; + + m_pen = *wxBLACK_PEN; + m_font = *wxNORMAL_FONT; + m_brush = *wxWHITE_BRUSH; } -wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const +wxGTKDCImpl::~wxGTKDCImpl() { - return ((wxDC *)this)->XLOG2DEVREL(x); } -wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const +void wxGTKDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) { - return ((wxDC *)this)->YLOG2DEVREL(y); + m_clipping = TRUE; + m_clipX1 = x; + m_clipY1 = y; + m_clipX2 = x + width; + m_clipY2 = y + height; } +// --------------------------------------------------------------------------- +// get DC capabilities +// --------------------------------------------------------------------------- + +void wxGTKDCImpl::DoGetSizeMM( int* width, int* height ) const +{ + 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) ); +} + +// Resolution in pixels per logical inch +wxSize wxGTKDCImpl::GetPPI() const +{ + // TODO (should probably be pure virtual) + return wxSize(0, 0); +} +#endif