///////////////////////////////////////////////////////////////////////////// // Name: src/gtk/dcclient.cpp // Purpose: // Author: Robert Roebling // RCS-ID: $Id$ // Copyright: (c) 1998 Robert Roebling, Chris Breeze // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __VMS #define XCopyPlane XCOPYPLANE #endif #include "wx/gtk/dcclient.h" #ifndef WX_PRECOMP #include "wx/window.h" #include "wx/log.h" #include "wx/dcmemory.h" #include "wx/math.h" #include "wx/image.h" #include "wx/module.h" #endif #include "wx/fontutil.h" #include "wx/gtk/private.h" #include //----------------------------------------------------------------------------- // local defines //----------------------------------------------------------------------------- #define XLOG2DEV(x) LogicalToDeviceX(x) #define XLOG2DEVREL(x) LogicalToDeviceXRel(x) #define YLOG2DEV(y) LogicalToDeviceY(y) #define YLOG2DEVREL(y) LogicalToDeviceYRel(y) #define USE_PAINT_REGION 1 //----------------------------------------------------------------------------- // local data //----------------------------------------------------------------------------- #include "bdiag.xbm" #include "fdiag.xbm" #include "cdiag.xbm" #include "horiz.xbm" #include "verti.xbm" #include "cross.xbm" #define num_hatches 6 #define IS_15_PIX_HATCH(s) ((s)==wxCROSSDIAG_HATCH || (s)==wxHORIZONTAL_HATCH || (s)==wxVERTICAL_HATCH) #define IS_16_PIX_HATCH(s) ((s)!=wxCROSSDIAG_HATCH && (s)!=wxHORIZONTAL_HATCH && (s)!=wxVERTICAL_HATCH) static GdkPixmap *hatches[num_hatches]; static GdkPixmap **hatch_bitmap = (GdkPixmap **) NULL; extern GtkWidget *wxGetRootWindow(); //----------------------------------------------------------------------------- // constants //----------------------------------------------------------------------------- static const double RAD2DEG = 180.0 / M_PI; // ---------------------------------------------------------------------------- // private functions // ---------------------------------------------------------------------------- static inline double dmax(double a, double b) { return a > b ? a : b; } static inline double dmin(double a, double b) { return a < b ? a : b; } static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; } //----------------------------------------------------------------------------- // temporary implementation of the missing GDK function //----------------------------------------------------------------------------- static void gdk_wx_draw_bitmap(GdkDrawable *drawable, GdkGC *gc, GdkDrawable *src, gint xsrc, gint ysrc) { wxCHECK_RET( drawable, _T("NULL drawable in gdk_wx_draw_bitmap") ); wxCHECK_RET( src, _T("NULL src in gdk_wx_draw_bitmap") ); wxCHECK_RET( gc, _T("NULL gc in gdk_wx_draw_bitmap") ); gint src_width, src_height; gdk_drawable_get_size(src, &src_width, &src_height); XCopyPlane( GDK_WINDOW_XDISPLAY(drawable), GDK_WINDOW_XID(src), GDK_WINDOW_XID(drawable), GDK_GC_XGC(gc), xsrc, ysrc, src_width, src_height, 0, 0, 1 ); } //----------------------------------------------------------------------------- // Implement Pool of Graphic contexts. Creating them takes too much time. //----------------------------------------------------------------------------- enum wxPoolGCType { wxGC_ERROR = 0, wxTEXT_MONO, wxBG_MONO, wxPEN_MONO, wxBRUSH_MONO, wxTEXT_COLOUR, wxBG_COLOUR, wxPEN_COLOUR, wxBRUSH_COLOUR, wxTEXT_SCREEN, wxBG_SCREEN, wxPEN_SCREEN, wxBRUSH_SCREEN }; struct wxGC { GdkGC *m_gc; wxPoolGCType m_type; bool m_used; }; #define GC_POOL_ALLOC_SIZE 100 static int wxGCPoolSize = 0; static wxGC *wxGCPool = NULL; static void wxInitGCPool() { // This really could wait until the first call to // wxGetPoolGC, but we will make the first allocation // now when other initialization is being performed. // Set initial pool size. wxGCPoolSize = GC_POOL_ALLOC_SIZE; // Allocate initial pool. wxGCPool = (wxGC *)malloc(wxGCPoolSize * sizeof(wxGC)); if (wxGCPool == NULL) { // If we cannot malloc, then fail with error // when debug is enabled. If debug is not enabled, // the problem will eventually get caught // in wxGetPoolGC. wxFAIL_MSG( wxT("Cannot allocate GC pool") ); return; } // Zero initial pool. memset(wxGCPool, 0, wxGCPoolSize * sizeof(wxGC)); } static void wxCleanUpGCPool() { for (int i = 0; i < wxGCPoolSize; i++) { if (wxGCPool[i].m_gc) g_object_unref (wxGCPool[i].m_gc); } free(wxGCPool); wxGCPool = NULL; wxGCPoolSize = 0; } static GdkGC* wxGetPoolGC( GdkWindow *window, wxPoolGCType type ) { wxGC *pptr; // Look for an available GC. for (int i = 0; i < wxGCPoolSize; i++) { if (!wxGCPool[i].m_gc) { wxGCPool[i].m_gc = gdk_gc_new( window ); gdk_gc_set_exposures( wxGCPool[i].m_gc, FALSE ); wxGCPool[i].m_type = type; wxGCPool[i].m_used = false; } if ((!wxGCPool[i].m_used) && (wxGCPool[i].m_type == type)) { wxGCPool[i].m_used = true; return wxGCPool[i].m_gc; } } // We did not find an available GC. // We need to grow the GC pool. pptr = (wxGC *)realloc(wxGCPool, (wxGCPoolSize + GC_POOL_ALLOC_SIZE)*sizeof(wxGC)); if (pptr != NULL) { // Initialize newly allocated pool. wxGCPool = pptr; memset(&wxGCPool[wxGCPoolSize], 0, GC_POOL_ALLOC_SIZE*sizeof(wxGC)); // Initialize entry we will return. wxGCPool[wxGCPoolSize].m_gc = gdk_gc_new( window ); gdk_gc_set_exposures( wxGCPool[wxGCPoolSize].m_gc, FALSE ); wxGCPool[wxGCPoolSize].m_type = type; wxGCPool[wxGCPoolSize].m_used = true; // Set new value of pool size. wxGCPoolSize += GC_POOL_ALLOC_SIZE; // Return newly allocated entry. return wxGCPool[wxGCPoolSize-GC_POOL_ALLOC_SIZE].m_gc; } // The realloc failed. Fall through to error. wxFAIL_MSG( wxT("No GC available") ); return (GdkGC*) NULL; } static void wxFreePoolGC( GdkGC *gc ) { for (int i = 0; i < wxGCPoolSize; i++) { if (wxGCPool[i].m_gc == gc) { wxGCPool[i].m_used = false; return; } } wxFAIL_MSG( wxT("Wrong GC") ); } //----------------------------------------------------------------------------- // wxWindowDC //----------------------------------------------------------------------------- IMPLEMENT_ABSTRACT_CLASS(wxWindowDCImpl, wxGTKDCImpl) wxWindowDCImpl::wxWindowDCImpl( wxDC *owner ) : wxGTKDCImpl( owner ) { m_gdkwindow = (GdkWindow*) NULL; m_penGC = (GdkGC *) NULL; m_brushGC = (GdkGC *) NULL; m_textGC = (GdkGC *) NULL; m_bgGC = (GdkGC *) NULL; m_cmap = (GdkColormap *) NULL; m_isScreenDC = false; m_context = (PangoContext *)NULL; m_layout = (PangoLayout *)NULL; m_fontdesc = (PangoFontDescription *)NULL; } wxWindowDCImpl::wxWindowDCImpl( wxDC *owner, wxWindow *window ) : wxGTKDCImpl( owner ) { wxASSERT_MSG( window, wxT("DC needs a window") ); m_gdkwindow = (GdkWindow*) NULL; m_penGC = (GdkGC *) NULL; m_brushGC = (GdkGC *) NULL; m_textGC = (GdkGC *) NULL; m_bgGC = (GdkGC *) NULL; m_cmap = (GdkColormap *) NULL; m_isScreenDC = false; m_font = window->GetFont(); GtkWidget *widget = window->m_wxwindow; // Some controls don't have m_wxwindow - like wxStaticBox, but the user // code should still be able to create wxClientDCs for them, so we will // use the parent window here then. if ( !widget ) { window = window->GetParent(); widget = window->m_wxwindow; } wxASSERT_MSG( widget, wxT("DC needs a widget") ); m_context = window->GtkGetPangoDefaultContext(); m_layout = pango_layout_new( m_context ); m_fontdesc = pango_font_description_copy( widget->style->font_desc ); m_gdkwindow = widget->window; // Window not realized ? if (!m_gdkwindow) { // Don't report problems as per MSW. m_ok = true; return; } m_cmap = gtk_widget_get_colormap( widget ? widget : window->m_widget ); SetUpDC(); /* this must be done after SetUpDC, bacause SetUpDC calls the repective SetBrush, SetPen, SetBackground etc functions to set up the DC. SetBackground call m_owner->SetBackground and this might not be desired as the standard dc background is white whereas a window might assume gray to be the standard (as e.g. wxStatusBar) */ m_window = window; if (m_window && m_window->m_wxwindow && (m_window->GetLayoutDirection() == wxLayout_RightToLeft)) { // reverse sense m_signX = -1; // origin in the upper right corner m_deviceOriginX = m_window->GetClientSize().x; } } wxWindowDCImpl::~wxWindowDCImpl() { Destroy(); if (m_layout) g_object_unref (m_layout); if (m_fontdesc) pango_font_description_free( m_fontdesc ); } void wxWindowDCImpl::SetUpDC( bool isMemDC ) { m_ok = true; wxASSERT_MSG( !m_penGC, wxT("GCs already created") ); bool done = false; if ((isMemDC) && (GetSelectedBitmap().IsOk())) { if (GetSelectedBitmap().GetDepth() == 1) { m_penGC = wxGetPoolGC( m_gdkwindow, wxPEN_MONO ); m_brushGC = wxGetPoolGC( m_gdkwindow, wxBRUSH_MONO ); m_textGC = wxGetPoolGC( m_gdkwindow, wxTEXT_MONO ); m_bgGC = wxGetPoolGC( m_gdkwindow, wxBG_MONO ); done = true; } } if (!done) { if (m_isScreenDC) { m_penGC = wxGetPoolGC( m_gdkwindow, wxPEN_SCREEN ); m_brushGC = wxGetPoolGC( m_gdkwindow, wxBRUSH_SCREEN ); m_textGC = wxGetPoolGC( m_gdkwindow, wxTEXT_SCREEN ); m_bgGC = wxGetPoolGC( m_gdkwindow, wxBG_SCREEN ); } else { m_penGC = wxGetPoolGC( m_gdkwindow, wxPEN_COLOUR ); m_brushGC = wxGetPoolGC( m_gdkwindow, wxBRUSH_COLOUR ); m_textGC = wxGetPoolGC( m_gdkwindow, wxTEXT_COLOUR ); m_bgGC = wxGetPoolGC( m_gdkwindow, wxBG_COLOUR ); } } /* background colour */ m_backgroundBrush = *wxWHITE_BRUSH; m_backgroundBrush.GetColour().CalcPixel( m_cmap ); const GdkColor *bg_col = m_backgroundBrush.GetColour().GetColor(); /* m_textGC */ m_textForegroundColour.CalcPixel( m_cmap ); gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() ); m_textBackgroundColour.CalcPixel( m_cmap ); gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() ); gdk_gc_set_fill( m_textGC, GDK_SOLID ); gdk_gc_set_colormap( m_textGC, m_cmap ); /* m_penGC */ m_pen.GetColour().CalcPixel( m_cmap ); gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() ); gdk_gc_set_background( m_penGC, bg_col ); gdk_gc_set_line_attributes( m_penGC, 0, GDK_LINE_SOLID, GDK_CAP_NOT_LAST, GDK_JOIN_ROUND ); /* m_brushGC */ m_brush.GetColour().CalcPixel( m_cmap ); gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() ); gdk_gc_set_background( m_brushGC, bg_col ); gdk_gc_set_fill( m_brushGC, GDK_SOLID ); /* m_bgGC */ gdk_gc_set_background( m_bgGC, bg_col ); gdk_gc_set_foreground( m_bgGC, bg_col ); gdk_gc_set_fill( m_bgGC, GDK_SOLID ); /* ROPs */ gdk_gc_set_function( m_textGC, GDK_COPY ); gdk_gc_set_function( m_brushGC, GDK_COPY ); gdk_gc_set_function( m_penGC, GDK_COPY ); /* clipping */ gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL ); gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL ); gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL ); gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL ); if (!hatch_bitmap) { hatch_bitmap = hatches; hatch_bitmap[0] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, bdiag_bits, bdiag_width, bdiag_height ); hatch_bitmap[1] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cdiag_bits, cdiag_width, cdiag_height ); hatch_bitmap[2] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, fdiag_bits, fdiag_width, fdiag_height ); hatch_bitmap[3] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cross_bits, cross_width, cross_height ); hatch_bitmap[4] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, horiz_bits, horiz_width, horiz_height ); hatch_bitmap[5] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, verti_bits, verti_width, verti_height ); } } void wxWindowDCImpl::DoGetSize( int* width, int* height ) const { wxCHECK_RET( m_window, _T("GetSize() doesn't work without window") ); m_window->GetSize(width, height); } bool wxWindowDCImpl::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style) { #if wxUSE_IMAGE extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y, const wxColour & col, int style); return wxDoFloodFill( GetOwner(), x, y, col, style); #else wxUnusedVar(x); wxUnusedVar(y); wxUnusedVar(col); wxUnusedVar(style); return false; #endif } bool wxWindowDCImpl::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const { #if wxUSE_IMAGE // Generic (and therefore rather inefficient) method. // Could be improved. wxMemoryDC memdc; wxBitmap bitmap(1, 1); memdc.SelectObject(bitmap); memdc.Blit(0, 0, 1, 1, GetOwner(), x1, y1); memdc.SelectObject(wxNullBitmap); wxImage image = bitmap.ConvertToImage(); col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0)); return true; #else // !wxUSE_IMAGE wxUnusedVar(x1); wxUnusedVar(y1); wxUnusedVar(col); return false; #endif // wxUSE_IMAGE/!wxUSE_IMAGE } void wxWindowDCImpl::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (m_pen.GetStyle() != wxTRANSPARENT) { if (m_gdkwindow) gdk_draw_line( m_gdkwindow, m_penGC, XLOG2DEV(x1), YLOG2DEV(y1), XLOG2DEV(x2), YLOG2DEV(y2) ); CalcBoundingBox(x1, y1); CalcBoundingBox(x2, y2); } } void wxWindowDCImpl::DoCrossHair( wxCoord x, wxCoord y ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (m_pen.GetStyle() != wxTRANSPARENT) { int w = 0; int h = 0; GetOwner()->GetSize( &w, &h ); wxCoord xx = XLOG2DEV(x); wxCoord yy = YLOG2DEV(y); if (m_gdkwindow) { gdk_draw_line( m_gdkwindow, m_penGC, 0, yy, XLOG2DEVREL(w), yy ); gdk_draw_line( m_gdkwindow, m_penGC, xx, 0, xx, YLOG2DEVREL(h) ); } } } void wxWindowDCImpl::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); wxCoord xx1 = XLOG2DEV(x1); wxCoord yy1 = YLOG2DEV(y1); wxCoord xx2 = XLOG2DEV(x2); wxCoord yy2 = YLOG2DEV(y2); wxCoord xxc = XLOG2DEV(xc); wxCoord yyc = YLOG2DEV(yc); double dx = xx1 - xxc; double dy = yy1 - yyc; double radius = sqrt((double)(dx*dx+dy*dy)); wxCoord r = (wxCoord)radius; double radius1, radius2; if (xx1 == xx2 && yy1 == yy2) { radius1 = 0.0; radius2 = 360.0; } else if ( wxIsNullDouble(radius) ) { radius1 = radius2 = 0.0; } else { radius1 = (xx1 - xxc == 0) ? (yy1 - yyc < 0) ? 90.0 : -90.0 : -atan2(double(yy1-yyc), double(xx1-xxc)) * RAD2DEG; radius2 = (xx2 - xxc == 0) ? (yy2 - yyc < 0) ? 90.0 : -90.0 : -atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG; } wxCoord alpha1 = wxCoord(radius1 * 64.0); wxCoord alpha2 = wxCoord((radius2 - radius1) * 64.0); while (alpha2 <= 0) alpha2 += 360*64; while (alpha1 > 360*64) alpha1 -= 360*64; if (m_gdkwindow) { if (m_brush.GetStyle() != wxTRANSPARENT) { if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) { gdk_gc_set_ts_origin( m_textGC, m_deviceOriginX % m_brush.GetStipple()->GetWidth(), m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); gdk_draw_arc( m_gdkwindow, m_textGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); gdk_gc_set_ts_origin( m_textGC, 0, 0 ); } else if (IS_15_PIX_HATCH(m_brush.GetStyle())) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else if (IS_16_PIX_HATCH(m_brush.GetStyle())) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else if (m_brush.GetStyle() == wxSTIPPLE) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % m_brush.GetStipple()->GetWidth(), m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else { gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); } } if (m_pen.GetStyle() != wxTRANSPARENT) { gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); if ((m_brush.GetStyle() != wxTRANSPARENT) && (alpha2 - alpha1 != 360*64)) { gdk_draw_line( m_gdkwindow, m_penGC, xx1, yy1, xxc, yyc ); gdk_draw_line( m_gdkwindow, m_penGC, xxc, yyc, xx2, yy2 ); } } } CalcBoundingBox (x1, y1); CalcBoundingBox (x2, y2); } void wxWindowDCImpl::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); wxCoord xx = XLOG2DEV(x); wxCoord yy = YLOG2DEV(y); wxCoord ww = m_signX * XLOG2DEVREL(width); wxCoord hh = m_signY * YLOG2DEVREL(height); // CMB: handle -ve width and/or height if (ww < 0) { ww = -ww; xx = xx - ww; } if (hh < 0) { hh = -hh; yy = yy - hh; } if (m_gdkwindow) { wxCoord start = wxCoord(sa * 64.0); wxCoord end = wxCoord((ea-sa) * 64.0); if (m_brush.GetStyle() != wxTRANSPARENT) { if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) { gdk_gc_set_ts_origin( m_textGC, m_deviceOriginX % m_brush.GetStipple()->GetWidth(), m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); gdk_draw_arc( m_gdkwindow, m_textGC, TRUE, xx, yy, ww, hh, start, end ); gdk_gc_set_ts_origin( m_textGC, 0, 0 ); } else if (IS_15_PIX_HATCH(m_brush.GetStyle())) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy, ww, hh, start, end ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else if (IS_16_PIX_HATCH(m_brush.GetStyle())) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy, ww, hh, start, end ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else if (m_brush.GetStyle() == wxSTIPPLE) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % m_brush.GetStipple()->GetWidth(), m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy, ww, hh, start, end ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else { gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy, ww, hh, start, end ); } } if (m_pen.GetStyle() != wxTRANSPARENT) gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xx, yy, ww, hh, start, end ); } CalcBoundingBox (x, y); CalcBoundingBox (x + width, y + height); } void wxWindowDCImpl::DoDrawPoint( wxCoord x, wxCoord y ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if ((m_pen.GetStyle() != wxTRANSPARENT) && m_gdkwindow) gdk_draw_point( m_gdkwindow, m_penGC, XLOG2DEV(x), YLOG2DEV(y) ); CalcBoundingBox (x, y); } void wxWindowDCImpl::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (m_pen.GetStyle() == wxTRANSPARENT) return; if (n <= 0) return; //Check, if scaling is necessary const bool doScale = xoffset != 0 || yoffset != 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10; // GdkPoint and wxPoint have the same memory layout, so we can cast one to the other GdkPoint* gpts = reinterpret_cast(points); if (doScale) gpts = new GdkPoint[n]; for (int i = 0; i < n; i++) { if (doScale) { gpts[i].x = XLOG2DEV(points[i].x + xoffset); gpts[i].y = YLOG2DEV(points[i].y + yoffset); } CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset); } if (m_gdkwindow) gdk_draw_lines( m_gdkwindow, m_penGC, gpts, n); if (doScale) delete[] gpts; } void wxWindowDCImpl::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int WXUNUSED(fillStyle) ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (n <= 0) return; //Check, if scaling is necessary const bool doScale = xoffset != 0 || yoffset != 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10; // GdkPoint and wxPoint have the same memory layout, so we can cast one to the other GdkPoint* gdkpoints = reinterpret_cast(points); if (doScale) gdkpoints = new GdkPoint[n]; int i; for (i = 0 ; i < n ; i++) { if (doScale) { gdkpoints[i].x = XLOG2DEV(points[i].x + xoffset); gdkpoints[i].y = YLOG2DEV(points[i].y + yoffset); } CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset); } if (m_gdkwindow) { if (m_brush.GetStyle() != wxTRANSPARENT) { if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) { gdk_gc_set_ts_origin( m_textGC, m_deviceOriginX % m_brush.GetStipple()->GetWidth(), m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); gdk_draw_polygon( m_gdkwindow, m_textGC, TRUE, gdkpoints, n ); gdk_gc_set_ts_origin( m_textGC, 0, 0 ); } else if (IS_15_PIX_HATCH(m_brush.GetStyle())) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 ); gdk_draw_polygon( m_gdkwindow, m_brushGC, TRUE, gdkpoints, n ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else if (IS_16_PIX_HATCH(m_brush.GetStyle())) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 ); gdk_draw_polygon( m_gdkwindow, m_brushGC, TRUE, gdkpoints, n ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else if (m_brush.GetStyle() == wxSTIPPLE) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % m_brush.GetStipple()->GetWidth(), m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); gdk_draw_polygon( m_gdkwindow, m_brushGC, TRUE, gdkpoints, n ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else { gdk_draw_polygon( m_gdkwindow, m_brushGC, TRUE, gdkpoints, n ); } } if (m_pen.GetStyle() != wxTRANSPARENT) { /* for (i = 0 ; i < n ; i++) { gdk_draw_line( m_gdkwindow, m_penGC, gdkpoints[i%n].x, gdkpoints[i%n].y, gdkpoints[(i+1)%n].x, gdkpoints[(i+1)%n].y); } */ gdk_draw_polygon( m_gdkwindow, m_penGC, FALSE, gdkpoints, n ); } } if (doScale) delete[] gdkpoints; } void wxWindowDCImpl::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); wxCoord xx = XLOG2DEV(x); wxCoord yy = YLOG2DEV(y); wxCoord ww = m_signX * XLOG2DEVREL(width); wxCoord hh = m_signY * YLOG2DEVREL(height); // CMB: draw nothing if transformed w or h is 0 if (ww == 0 || hh == 0) return; // CMB: handle -ve width and/or height if (ww < 0) { ww = -ww; xx = xx - ww; } if (hh < 0) { hh = -hh; yy = yy - hh; } if (m_gdkwindow) { if (m_brush.GetStyle() != wxTRANSPARENT) { if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) { gdk_gc_set_ts_origin( m_textGC, m_deviceOriginX % m_brush.GetStipple()->GetWidth(), m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); gdk_draw_rectangle( m_gdkwindow, m_textGC, TRUE, xx, yy, ww, hh ); gdk_gc_set_ts_origin( m_textGC, 0, 0 ); } else if (IS_15_PIX_HATCH(m_brush.GetStyle())) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 ); gdk_draw_rectangle( m_gdkwindow, m_brushGC, TRUE, xx, yy, ww, hh ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else if (IS_16_PIX_HATCH(m_brush.GetStyle())) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 ); gdk_draw_rectangle( m_gdkwindow, m_brushGC, TRUE, xx, yy, ww, hh ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else if (m_brush.GetStyle() == wxSTIPPLE) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % m_brush.GetStipple()->GetWidth(), m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); gdk_draw_rectangle( m_gdkwindow, m_brushGC, TRUE, xx, yy, ww, hh ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else { gdk_draw_rectangle( m_gdkwindow, m_brushGC, TRUE, xx, yy, ww, hh ); } } if (m_pen.GetStyle() != wxTRANSPARENT) { #if 1 if ((m_pen.GetWidth() == 2) && (m_pen.GetCap() == wxCAP_ROUND) && (m_pen.GetJoin() == wxJOIN_ROUND) && (m_pen.GetStyle() == wxSOLID)) { // Use 2 1-line rects instead gdk_gc_set_line_attributes( m_penGC, 1, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND ); if (m_signX == -1) { // Different for RTL gdk_draw_rectangle( m_gdkwindow, m_penGC, FALSE, xx+1, yy, ww-2, hh-2 ); gdk_draw_rectangle( m_gdkwindow, m_penGC, FALSE, xx, yy-1, ww, hh ); } else { gdk_draw_rectangle( m_gdkwindow, m_penGC, FALSE, xx, yy, ww-2, hh-2 ); gdk_draw_rectangle( m_gdkwindow, m_penGC, FALSE, xx-1, yy-1, ww, hh ); } // reset gdk_gc_set_line_attributes( m_penGC, 2, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND ); } else #endif { // Just use X11 for other cases gdk_draw_rectangle( m_gdkwindow, m_penGC, FALSE, xx, yy, ww-1, hh-1 ); } } } CalcBoundingBox( x, y ); CalcBoundingBox( x + width, y + height ); } void wxWindowDCImpl::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (radius < 0.0) radius = - radius * ((width < height) ? width : height); wxCoord xx = XLOG2DEV(x); wxCoord yy = YLOG2DEV(y); wxCoord ww = m_signX * XLOG2DEVREL(width); wxCoord hh = m_signY * YLOG2DEVREL(height); wxCoord rr = XLOG2DEVREL((wxCoord)radius); // CMB: handle -ve width and/or height if (ww < 0) { ww = -ww; xx = xx - ww; } if (hh < 0) { hh = -hh; yy = yy - hh; } // CMB: if radius is zero use DrawRectangle() instead to avoid // X drawing errors with small radii if (rr == 0) { DoDrawRectangle( x, y, width, height ); return; } // CMB: draw nothing if transformed w or h is 0 if (ww == 0 || hh == 0) return; // CMB: adjust size if outline is drawn otherwise the result is // 1 pixel too wide and high if (m_pen.GetStyle() != wxTRANSPARENT) { ww--; hh--; } if (m_gdkwindow) { // CMB: ensure dd is not larger than rectangle otherwise we // get an hour glass shape wxCoord dd = 2 * rr; if (dd > ww) dd = ww; if (dd > hh) dd = hh; rr = dd / 2; if (m_brush.GetStyle() != wxTRANSPARENT) { if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) { gdk_gc_set_ts_origin( m_textGC, m_deviceOriginX % m_brush.GetStipple()->GetWidth(), m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); gdk_draw_rectangle( m_gdkwindow, m_textGC, TRUE, xx+rr, yy, ww-dd+1, hh ); gdk_draw_rectangle( m_gdkwindow, m_textGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); gdk_draw_arc( m_gdkwindow, m_textGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); gdk_draw_arc( m_gdkwindow, m_textGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); gdk_draw_arc( m_gdkwindow, m_textGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); gdk_draw_arc( m_gdkwindow, m_textGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); gdk_gc_set_ts_origin( m_textGC, 0, 0 ); } else if (IS_15_PIX_HATCH(m_brush.GetStyle())) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 ); gdk_draw_rectangle( m_gdkwindow, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); gdk_draw_rectangle( m_gdkwindow, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else if (IS_16_PIX_HATCH(m_brush.GetStyle())) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 ); gdk_draw_rectangle( m_gdkwindow, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); gdk_draw_rectangle( m_gdkwindow, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else if (m_brush.GetStyle() == wxSTIPPLE) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % m_brush.GetStipple()->GetWidth(), m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); gdk_draw_rectangle( m_gdkwindow, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); gdk_draw_rectangle( m_gdkwindow, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else { gdk_draw_rectangle( m_gdkwindow, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); gdk_draw_rectangle( m_gdkwindow, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); } } if (m_pen.GetStyle() != wxTRANSPARENT) { gdk_draw_line( m_gdkwindow, m_penGC, xx+rr+1, yy, xx+ww-rr, yy ); gdk_draw_line( m_gdkwindow, m_penGC, xx+rr+1, yy+hh, xx+ww-rr, yy+hh ); gdk_draw_line( m_gdkwindow, m_penGC, xx, yy+rr+1, xx, yy+hh-rr ); gdk_draw_line( m_gdkwindow, m_penGC, xx+ww, yy+rr+1, xx+ww, yy+hh-rr ); gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xx, yy, dd, dd, 90*64, 90*64 ); gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); } } // this ignores the radius CalcBoundingBox( x, y ); CalcBoundingBox( x + width, y + height ); } void wxWindowDCImpl::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); wxCoord xx = XLOG2DEV(x); wxCoord yy = YLOG2DEV(y); wxCoord ww = m_signX * XLOG2DEVREL(width); wxCoord hh = m_signY * YLOG2DEVREL(height); // CMB: handle -ve width and/or height if (ww < 0) { ww = -ww; xx = xx - ww; } if (hh < 0) { hh = -hh; yy = yy - hh; } if (m_gdkwindow) { if (m_brush.GetStyle() != wxTRANSPARENT) { if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) { gdk_gc_set_ts_origin( m_textGC, m_deviceOriginX % m_brush.GetStipple()->GetWidth(), m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); gdk_draw_arc( m_gdkwindow, m_textGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); gdk_gc_set_ts_origin( m_textGC, 0, 0 ); } else if (IS_15_PIX_HATCH(m_brush.GetStyle())) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else if (IS_16_PIX_HATCH(m_brush.GetStyle())) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else if (m_brush.GetStyle() == wxSTIPPLE) { gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % m_brush.GetStipple()->GetWidth(), m_deviceOriginY % m_brush.GetStipple()->GetHeight() ); gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else { gdk_draw_arc( m_gdkwindow, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); } } if (m_pen.GetStyle() != wxTRANSPARENT) gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xx, yy, ww, hh, 0, 360*64 ); } CalcBoundingBox( x, y ); CalcBoundingBox( x + width, y + height ); } void wxWindowDCImpl::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y ) { // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why DoDrawBitmap( (const wxBitmap&)icon, x, y, true ); } void wxWindowDCImpl::DoDrawBitmap( const wxBitmap &bitmap, wxCoord x, wxCoord y, bool useMask ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); wxCHECK_RET( bitmap.IsOk(), wxT("invalid bitmap") ); bool is_mono = bitmap.GetDepth() == 1; // scale/translate size and position int xx = XLOG2DEV(x); int yy = YLOG2DEV(y); int w = bitmap.GetWidth(); int h = bitmap.GetHeight(); if (m_window && m_window->GetLayoutDirection() == wxLayout_RightToLeft) xx -= w; CalcBoundingBox( x, y ); CalcBoundingBox( x + w, y + h ); if (!m_gdkwindow) return; int ww = XLOG2DEVREL(w); int hh = YLOG2DEVREL(h); // compare to current clipping region if (!m_currentClippingRegion.IsNull()) { wxRegion tmp( xx,yy,ww,hh ); tmp.Intersect( m_currentClippingRegion ); if (tmp.IsEmpty()) return; } // scale bitmap if required wxBitmap use_bitmap = bitmap; if ((w != ww) || (h != hh)) use_bitmap = use_bitmap.Rescale( 0, 0, ww, hh, ww, hh ); // apply mask if any GdkBitmap *mask = (GdkBitmap *) NULL; if (useMask && use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap(); GdkGC* use_gc = is_mono ? m_textGC : m_penGC; GdkBitmap *new_mask = (GdkBitmap*) NULL; if (mask != NULL) { if (!m_currentClippingRegion.IsNull()) { GdkColor col; new_mask = gdk_pixmap_new( wxGetRootWindow()->window, ww, hh, 1 ); GdkGC *gc = gdk_gc_new( new_mask ); col.pixel = 0; gdk_gc_set_foreground( gc, &col ); gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh ); col.pixel = 0; gdk_gc_set_background( gc, &col ); col.pixel = 1; gdk_gc_set_foreground( gc, &col ); gdk_gc_set_clip_region( gc, m_currentClippingRegion.GetRegion() ); gdk_gc_set_clip_origin( gc, -xx, -yy ); gdk_gc_set_fill( gc, GDK_OPAQUE_STIPPLED ); gdk_gc_set_stipple( gc, mask ); gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh ); mask = new_mask; g_object_unref (gc); } gdk_gc_set_clip_mask(use_gc, mask); gdk_gc_set_clip_origin(use_gc, xx, yy); } // Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For // drawing a mono-bitmap (XBitmap) we use the current text GC if (is_mono) { GdkPixmap *bitmap2 = gdk_pixmap_new( wxGetRootWindow()->window, ww, hh, -1 ); GdkGC *gc = gdk_gc_new( bitmap2 ); gdk_gc_set_foreground( gc, m_textForegroundColour.GetColor() ); gdk_gc_set_background( gc, m_textBackgroundColour.GetColor() ); gdk_wx_draw_bitmap(bitmap2, gc, use_bitmap.GetPixmap(), 0, 0); gdk_draw_drawable(m_gdkwindow, use_gc, bitmap2, 0, 0, xx, yy, -1, -1); g_object_unref (bitmap2); g_object_unref (gc); } else { if (use_bitmap.HasPixbuf()) { gdk_draw_pixbuf(m_gdkwindow, use_gc, use_bitmap.GetPixbuf(), 0, 0, xx, yy, -1, -1, GDK_RGB_DITHER_NORMAL, xx, yy); } else { gdk_draw_drawable(m_gdkwindow, use_gc, use_bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1); } } // remove mask again if any if (mask != NULL) { gdk_gc_set_clip_mask(use_gc, NULL); gdk_gc_set_clip_origin(use_gc, 0, 0); if (!m_currentClippingRegion.IsNull()) gdk_gc_set_clip_region(use_gc, m_currentClippingRegion.GetRegion()); if (new_mask != NULL) g_object_unref(new_mask); } } bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, wxDC *source, wxCoord xsrc, wxCoord ysrc, int logical_func, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask ) { wxCHECK_MSG( IsOk(), false, wxT("invalid window dc") ); wxCHECK_MSG( source, false, wxT("invalid source dc") ); if (!m_gdkwindow) return false; // transform the source DC coords to the device ones xsrc = source->LogicalToDeviceX(xsrc); ysrc = source->LogicalToDeviceY(ysrc); wxBitmap selected; wxMemoryDC *memDC = wxDynamicCast(source, wxMemoryDC); if ( memDC ) { selected = memDC->GetSelectedBitmap(); if ( !selected.IsOk() ) return false; } bool use_bitmap_method = false; bool is_mono = false; if (xsrcMask == -1 && ysrcMask == -1) { xsrcMask = xsrc; ysrcMask = ysrc; } if (selected.IsOk()) { is_mono = (selected.GetDepth() == 1); // we use the "XCopyArea" way to copy a memory dc into // a different window if the memory dc BOTH // a) doesn't have any mask or its mask isn't used // b) it is clipped // c) is not 1-bit if (useMask && (selected.GetMask())) { // we HAVE TO use the direct way for memory dcs // that have mask since the XCopyArea doesn't know // about masks use_bitmap_method = true; } else if (is_mono) { // we HAVE TO use the direct way for memory dcs // that are bitmaps because XCopyArea doesn't cope // with different bit depths use_bitmap_method = true; } else if ((xsrc == 0) && (ysrc == 0) && (width == selected.GetWidth()) && (height == selected.GetHeight())) { // we SHOULD use the direct way if all of the bitmap // in the memory dc is copied in which case XCopyArea // wouldn't be able able to boost performace by reducing // the area to be scaled use_bitmap_method = true; } } CalcBoundingBox( xdest, ydest ); CalcBoundingBox( xdest + width, ydest + height ); // scale/translate size and position wxCoord xx = XLOG2DEV(xdest); wxCoord yy = YLOG2DEV(ydest); wxCoord ww = XLOG2DEVREL(width); wxCoord hh = YLOG2DEVREL(height); // compare to current clipping region if (!m_currentClippingRegion.IsNull()) { wxRegion tmp( xx,yy,ww,hh ); tmp.Intersect( m_currentClippingRegion ); if (tmp.IsEmpty()) return true; } int old_logical_func = m_logicalFunction; SetLogicalFunction( logical_func ); if (use_bitmap_method) { // scale/translate bitmap size wxCoord bm_width = selected.GetWidth(); wxCoord bm_height = selected.GetHeight(); // Get clip coords for the bitmap. If we don't // use wxBitmap::Rescale(), which can clip the // bitmap, these are the same as the original // coordinates wxCoord cx = xx; wxCoord cy = yy; wxCoord cw = ww; wxCoord ch = hh; // interpret userscale of src too double xsc,ysc; memDC->GetUserScale(&xsc,&ysc); bm_width = (int) (bm_width / xsc); bm_height = (int) (bm_height / ysc); wxCoord bm_ww = XLOG2DEVREL( bm_width ); wxCoord bm_hh = YLOG2DEVREL( bm_height ); // Scale bitmap if required wxBitmap use_bitmap = selected; if ((selected.GetWidth()!= bm_ww) || ( selected.GetHeight()!= bm_hh)) { // This indicates that the blitting code below will get // a clipped bitmap and therefore needs to move the origin // accordingly wxRegion tmp( xx,yy,ww,hh ); if (!m_currentClippingRegion.IsNull()) tmp.Intersect( m_currentClippingRegion ); tmp.GetBox(cx,cy,cw,ch); // Scale and clipped bitmap use_bitmap = selected.Rescale(cx-xx,cy-yy,cw,ch,bm_ww,bm_hh); } // apply mask if any GdkBitmap *mask = (GdkBitmap *) NULL; if (useMask && use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap(); GdkGC* use_gc = is_mono ? m_textGC : m_penGC; GdkBitmap *new_mask = (GdkBitmap*) NULL; if (mask != NULL) { if (!m_currentClippingRegion.IsNull()) { GdkColor col; new_mask = gdk_pixmap_new( wxGetRootWindow()->window, bm_ww, bm_hh, 1 ); GdkGC *gc = gdk_gc_new( new_mask ); col.pixel = 0; gdk_gc_set_foreground( gc, &col ); gdk_gc_set_ts_origin( gc, -xsrcMask, -ysrcMask); gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, bm_ww, bm_hh ); col.pixel = 0; gdk_gc_set_background( gc, &col ); col.pixel = 1; gdk_gc_set_foreground( gc, &col ); gdk_gc_set_clip_region( gc, m_currentClippingRegion.GetRegion() ); // was: gdk_gc_set_clip_origin( gc, -xx, -yy ); gdk_gc_set_clip_origin( gc, -cx, -cy ); gdk_gc_set_fill( gc, GDK_OPAQUE_STIPPLED ); gdk_gc_set_stipple( gc, mask ); gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, bm_ww, bm_hh ); mask = new_mask; g_object_unref (gc); } gdk_gc_set_clip_mask(use_gc, mask); if (new_mask != NULL) gdk_gc_set_clip_origin(use_gc, cx, cy); else gdk_gc_set_clip_origin(use_gc, cx - xsrcMask, cy - ysrcMask); } // Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For // drawing a mono-bitmap (XBitmap) we use the current text GC if (is_mono) { GdkPixmap *bitmap = gdk_pixmap_new( wxGetRootWindow()->window, bm_ww, bm_hh, -1 ); GdkGC *gc = gdk_gc_new( bitmap ); gdk_gc_set_foreground( gc, m_textForegroundColour.GetColor() ); gdk_gc_set_background( gc, m_textBackgroundColour.GetColor() ); gdk_wx_draw_bitmap(bitmap, gc, use_bitmap.GetPixmap(), 0, 0); gdk_draw_drawable(m_gdkwindow, use_gc, bitmap, xsrc, ysrc, cx, cy, cw, ch); g_object_unref (bitmap); g_object_unref (gc); } else { // was: gdk_draw_drawable( m_gdkwindow, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, xx, yy, ww, hh ); gdk_draw_drawable(m_gdkwindow, use_gc, use_bitmap.GetPixmap(), xsrc, ysrc, cx, cy, cw, ch); } // remove mask again if any if (mask != NULL) { gdk_gc_set_clip_mask(use_gc, NULL); gdk_gc_set_clip_origin(use_gc, 0, 0); if (!m_currentClippingRegion.IsNull()) gdk_gc_set_clip_region(use_gc, m_currentClippingRegion.GetRegion()); } if (new_mask) g_object_unref (new_mask); } else // use_bitmap_method { if (selected.IsOk() && ((width != ww) || (height != hh))) { // get clip coords wxRegion tmp( xx,yy,ww,hh ); tmp.Intersect( m_currentClippingRegion ); wxCoord cx,cy,cw,ch; tmp.GetBox(cx,cy,cw,ch); // rescale bitmap wxBitmap bitmap = selected.Rescale( cx-xx, cy-yy, cw, ch, ww, hh ); // draw scaled bitmap // was: gdk_draw_drawable( m_gdkwindow, m_penGC, bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 ); gdk_draw_drawable( m_gdkwindow, m_penGC, bitmap.GetPixmap(), 0, 0, cx, cy, -1, -1 ); } else { // No scaling and not a memory dc with a mask either GdkWindow* window = NULL; wxDCImpl *impl = source->GetImpl(); wxWindowDCImpl *gtk_impl = wxDynamicCast(impl, wxWindowDCImpl); if (gtk_impl) window = gtk_impl->GetGDKWindow(); if ( !window ) { SetLogicalFunction( old_logical_func ); return false; } // copy including child window contents gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS ); gdk_draw_drawable( m_gdkwindow, m_penGC, window, xsrc, ysrc, xx, yy, width, height ); gdk_gc_set_subwindow( m_penGC, GDK_CLIP_BY_CHILDREN ); } } SetLogicalFunction( old_logical_func ); return true; } void wxWindowDCImpl::DoDrawText( const wxString &text, wxCoord x, wxCoord y ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (!m_gdkwindow) return; if (text.empty()) return; x = XLOG2DEV(x); y = YLOG2DEV(y); wxCHECK_RET( m_context, wxT("no Pango context") ); wxCHECK_RET( m_layout, wxT("no Pango layout") ); wxCHECK_RET( m_fontdesc, wxT("no Pango font description") ); gdk_pango_context_set_colormap( m_context, m_cmap ); bool underlined = m_font.IsOk() && m_font.GetUnderlined(); wxCharBuffer data = wxGTK_CONV(text); if ( !data ) return; size_t datalen = strlen(data); // in Pango >= 1.16 the "underline of leading/trailing spaces" bug // has been fixed and thus the hack implemented below should never be used static bool pangoOk = !wx_pango_version_check(1, 16, 0); bool needshack = underlined && !pangoOk; if (needshack) { // a PangoLayout which has leading/trailing spaces with underlined font // is not correctly drawn by this pango version: Pango won't underline the spaces. // This can be a problem; e.g. wxHTML rendering of underlined text relies on // this behaviour. To workaround this problem, we use a special hack here // suggested by pango maintainer Behdad Esfahbod: we prepend and append two // empty space characters and give them a dummy colour attribute. // This will force Pango to underline the leading/trailing spaces, too. wxCharBuffer data_tmp(datalen + 6); // copy the leading U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format memcpy(data_tmp.data(), "\342\200\214", 3); // copy the user string memcpy(data_tmp.data() + 3, data, datalen); // copy the trailing U+200C ZERO WIDTH NON-JOINER encoded in UTF8 format memcpy(data_tmp.data() + 3 + datalen, "\342\200\214", 3); data = data_tmp; datalen += 6; } pango_layout_set_text(m_layout, data, datalen); if (underlined) { PangoAttrList *attrs = pango_attr_list_new(); PangoAttribute *a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE); a->start_index = 0; a->end_index = datalen; pango_attr_list_insert(attrs, a); if (needshack) { // dummy colour for the leading space a = pango_attr_foreground_new (0x0057, 0x52A9, 0xD614); a->start_index = 0; a->end_index = 1; pango_attr_list_insert(attrs, a); // dummy colour for the trailing space a = pango_attr_foreground_new (0x0057, 0x52A9, 0xD614); a->start_index = datalen - 1; a->end_index = datalen; pango_attr_list_insert(attrs, a); } pango_layout_set_attributes(m_layout, attrs); pango_attr_list_unref(attrs); } int w,h; if (fabs(m_scaleY - 1.0) > 0.00001) { // If there is a user or actually any scale applied to // the device context, scale the font. // scale font description gint oldSize = pango_font_description_get_size( m_fontdesc ); double size = oldSize; size = size * m_scaleY; pango_font_description_set_size( m_fontdesc, (gint)size ); // actually apply scaled font pango_layout_set_font_description( m_layout, m_fontdesc ); pango_layout_get_pixel_size( m_layout, &w, &h ); if ( m_backgroundMode == wxSOLID ) { gdk_gc_set_foreground(m_textGC, m_textBackgroundColour.GetColor()); gdk_draw_rectangle(m_gdkwindow, m_textGC, TRUE, x, y, w, h); gdk_gc_set_foreground(m_textGC, m_textForegroundColour.GetColor()); } // Draw layout. if (m_window && m_window->GetLayoutDirection() == wxLayout_RightToLeft) gdk_draw_layout( m_gdkwindow, m_textGC, x-w, y, m_layout ); else gdk_draw_layout( m_gdkwindow, m_textGC, x, y, m_layout ); // reset unscaled size pango_font_description_set_size( m_fontdesc, oldSize ); // actually apply unscaled font pango_layout_set_font_description( m_layout, m_fontdesc ); } else { pango_layout_get_pixel_size( m_layout, &w, &h ); if ( m_backgroundMode == wxSOLID ) { gdk_gc_set_foreground(m_textGC, m_textBackgroundColour.GetColor()); gdk_draw_rectangle(m_gdkwindow, m_textGC, TRUE, x, y, w, h); gdk_gc_set_foreground(m_textGC, m_textForegroundColour.GetColor()); } // Draw layout. if (m_window && m_window->GetLayoutDirection() == wxLayout_RightToLeft) gdk_draw_layout( m_gdkwindow, m_textGC, x-w, y, m_layout ); else gdk_draw_layout( m_gdkwindow, m_textGC, x, y, m_layout ); } if (underlined) { // undo underline attributes setting: pango_layout_set_attributes(m_layout, NULL); } wxCoord width = w; wxCoord height = h; width = wxCoord(width / m_scaleX); height = wxCoord(height / m_scaleY); CalcBoundingBox (x + width, y + height); CalcBoundingBox (x, y); } // TODO: There is an example of rotating text with GTK2 that would probably be // a better approach here: // http://www.daa.com.au/pipermail/pygtk/2003-April/005052.html void wxWindowDCImpl::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle ) { #if wxUSE_IMAGE if (!m_gdkwindow || text.empty()) return; wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if ( wxIsNullDouble(angle) ) { DoDrawText(text, x, y); return; } wxCoord w; wxCoord h; // TODO: implement later without GdkFont for GTK 2.0 DoGetTextExtent(text, &w, &h, NULL,NULL, &m_font); // draw the string normally wxBitmap src(w, h); wxMemoryDC dc; dc.SelectObject(src); dc.SetFont(GetFont()); dc.SetBackground(*wxBLACK_BRUSH); dc.SetBrush(*wxBLACK_BRUSH); dc.Clear(); dc.SetTextForeground( *wxWHITE ); dc.DrawText(text, 0, 0); dc.SelectObject(wxNullBitmap); // Calculate the size of the rotated bounding box. double rad = DegToRad(angle); double dx = cos(rad), dy = sin(rad); // the rectngle vertices are counted clockwise with the first one being at // (0, 0) (or, rather, at (x, y)) double x2 = w*dx, y2 = -w*dy; // y axis points to the bottom, hence minus double x4 = h*dy, y4 = h*dx; double x3 = x4 + x2, y3 = y4 + y2; // calc max and min wxCoord maxX = (wxCoord)(dmax(x2, dmax(x3, x4)) + 0.5), maxY = (wxCoord)(dmax(y2, dmax(y3, y4)) + 0.5), minX = (wxCoord)(dmin(x2, dmin(x3, x4)) - 0.5), minY = (wxCoord)(dmin(y2, dmin(y3, y4)) - 0.5); wxImage image = src.ConvertToImage(); image.ConvertColourToAlpha( m_textForegroundColour.Red(), m_textForegroundColour.Green(), m_textForegroundColour.Blue() ); image = image.Rotate( rad, wxPoint(0,0) ); int i_angle = (int) angle; i_angle = i_angle % 360; if (i_angle < 0) i_angle += 360; int xoffset = 0; if ((i_angle >= 90.0) && (i_angle < 270.0)) xoffset = image.GetWidth(); int yoffset = 0; if ((i_angle >= 0.0) && (i_angle < 180.0)) yoffset = image.GetHeight(); if ((i_angle >= 0) && (i_angle < 90)) yoffset -= (int)( cos(rad)*h ); if ((i_angle >= 90) && (i_angle < 180)) xoffset -= (int)( sin(rad)*h ); if ((i_angle >= 180) && (i_angle < 270)) yoffset -= (int)( cos(rad)*h ); if ((i_angle >= 270) && (i_angle < 360)) xoffset -= (int)( sin(rad)*h ); int i_x = x - xoffset; int i_y = y - yoffset; src = image; DoDrawBitmap( src, i_x, i_y, true ); // it would be better to draw with non underlined font and draw the line // manually here (it would be more straight...) #if 0 if ( m_font.GetUnderlined() ) { gdk_draw_line( m_gdkwindow, m_textGC, XLOG2DEV(x + x4), YLOG2DEV(y + y4 + font->descent), XLOG2DEV(x + x3), YLOG2DEV(y + y3 + font->descent)); } #endif // 0 // update the bounding box CalcBoundingBox(x + minX, y + minY); CalcBoundingBox(x + maxX, y + maxY); #else // !wxUSE_IMAGE wxUnusedVar(text); wxUnusedVar(x); wxUnusedVar(y); wxUnusedVar(angle); #endif // wxUSE_IMAGE/!wxUSE_IMAGE } void wxWindowDCImpl::DoGetTextExtent(const wxString &string, wxCoord *width, wxCoord *height, wxCoord *descent, wxCoord *externalLeading, const wxFont *theFont) const { if ( width ) *width = 0; if ( height ) *height = 0; if ( descent ) *descent = 0; if ( externalLeading ) *externalLeading = 0; if (string.empty()) return; // ensure that theFont is always non-NULL if ( !theFont || !theFont->IsOk() ) theFont = wx_const_cast(wxFont *, &m_font); // and use it if it's valid if ( theFont->IsOk() ) { pango_layout_set_font_description ( m_layout, theFont->GetNativeFontInfo()->description ); } // Set layout's text const wxCharBuffer dataUTF8 = wxGTK_CONV_FONT(string, *theFont); if ( !dataUTF8 ) { // hardly ideal, but what else can we do if conversion failed? return; } pango_layout_set_text( m_layout, dataUTF8, strlen(dataUTF8) ); if (descent) { int h; pango_layout_get_pixel_size( m_layout, width, &h ); PangoLayoutIter *iter = pango_layout_get_iter(m_layout); int baseline = pango_layout_iter_get_baseline(iter); pango_layout_iter_free(iter); *descent = h - PANGO_PIXELS(baseline); if (height) *height = (wxCoord) h; } else { pango_layout_get_pixel_size( m_layout, width, height ); } // Reset old font description if (theFont->IsOk()) pango_layout_set_font_description( m_layout, m_fontdesc ); } bool wxWindowDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const { const size_t len = text.length(); widths.Empty(); widths.Add(0, len); if (text.empty()) return true; // Set layout's text const wxCharBuffer dataUTF8 = wxGTK_CONV_FONT(text, m_font); if ( !dataUTF8 ) { // hardly ideal, but what else can we do if conversion failed? wxLogLastError(wxT("DoGetPartialTextExtents")); return false; } pango_layout_set_text( m_layout, dataUTF8, strlen(dataUTF8) ); // Calculate the position of each character based on the widths of // the previous characters // Code borrowed from Scintilla's PlatGTK PangoLayoutIter *iter = pango_layout_get_iter(m_layout); PangoRectangle pos; pango_layout_iter_get_cluster_extents(iter, NULL, &pos); size_t i = 0; while (pango_layout_iter_next_cluster(iter)) { pango_layout_iter_get_cluster_extents(iter, NULL, &pos); int position = PANGO_PIXELS(pos.x); widths[i++] = position; } while (i < len) widths[i++] = PANGO_PIXELS(pos.x + pos.width); pango_layout_iter_free(iter); return true; } wxCoord wxWindowDCImpl::GetCharWidth() const { pango_layout_set_text( m_layout, "H", 1 ); int w; pango_layout_get_pixel_size( m_layout, &w, NULL ); return w; } wxCoord wxWindowDCImpl::GetCharHeight() const { PangoFontMetrics *metrics = pango_context_get_metrics (m_context, m_fontdesc, pango_context_get_language(m_context)); wxCHECK_MSG( metrics, -1, _T("failed to get pango font metrics") ); wxCoord h = PANGO_PIXELS (pango_font_metrics_get_descent (metrics) + pango_font_metrics_get_ascent (metrics)); pango_font_metrics_unref (metrics); return h; } void wxWindowDCImpl::Clear() { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (!m_gdkwindow) return; int width,height; DoGetSize( &width, &height ); gdk_draw_rectangle( m_gdkwindow, m_bgGC, TRUE, 0, 0, width, height ); } void wxWindowDCImpl::SetFont( const wxFont &font ) { m_font = font; if (m_font.IsOk()) { if (m_fontdesc) pango_font_description_free( m_fontdesc ); m_fontdesc = pango_font_description_copy( m_font.GetNativeFontInfo()->description ); if (m_window) { PangoContext *oldContext = m_context; m_context = m_window->GtkGetPangoDefaultContext(); // If we switch back/forth between different contexts // we also have to create a new layout. I think so, // at least, and it doesn't hurt to do it. if (oldContext != m_context) { if (m_layout) g_object_unref (m_layout); m_layout = pango_layout_new( m_context ); } } pango_layout_set_font_description( m_layout, m_fontdesc ); } } void wxWindowDCImpl::SetPen( const wxPen &pen ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (m_pen == pen) return; m_pen = pen; if (!m_pen.IsOk()) return; if (!m_gdkwindow) return; gint width = m_pen.GetWidth(); if (width <= 0) { // CMB: if width is non-zero scale it with the dc width = 1; } else { // X doesn't allow different width in x and y and so we take // the average double w = 0.5 + ( fabs((double) XLOG2DEVREL(width)) + fabs((double) YLOG2DEVREL(width)) ) / 2.0; width = (int)w; if ( !width ) { // width can't be 0 or an internal GTK error occurs inside // gdk_gc_set_dashes() below width = 1; } } static const wxGTKDash dotted[] = {1, 1}; static const wxGTKDash short_dashed[] = {2, 2}; static const wxGTKDash wxCoord_dashed[] = {2, 4}; static const wxGTKDash dotted_dashed[] = {3, 3, 1, 3}; // We express dash pattern in pen width unit, so we are // independent of zoom factor and so on... int req_nb_dash; const wxGTKDash *req_dash; GdkLineStyle lineStyle = GDK_LINE_SOLID; switch (m_pen.GetStyle()) { case wxUSER_DASH: { lineStyle = GDK_LINE_ON_OFF_DASH; req_nb_dash = m_pen.GetDashCount(); req_dash = (wxGTKDash*)m_pen.GetDash(); break; } case wxDOT: { lineStyle = GDK_LINE_ON_OFF_DASH; req_nb_dash = 2; req_dash = dotted; break; } case wxLONG_DASH: { lineStyle = GDK_LINE_ON_OFF_DASH; req_nb_dash = 2; req_dash = wxCoord_dashed; break; } case wxSHORT_DASH: { lineStyle = GDK_LINE_ON_OFF_DASH; req_nb_dash = 2; req_dash = short_dashed; break; } case wxDOT_DASH: { // lineStyle = GDK_LINE_DOUBLE_DASH; lineStyle = GDK_LINE_ON_OFF_DASH; req_nb_dash = 4; req_dash = dotted_dashed; break; } case wxTRANSPARENT: case wxSTIPPLE_MASK_OPAQUE: case wxSTIPPLE: case wxSOLID: default: { lineStyle = GDK_LINE_SOLID; req_dash = (wxGTKDash*)NULL; req_nb_dash = 0; break; } } if (req_dash && req_nb_dash) { wxGTKDash *real_req_dash = new wxGTKDash[req_nb_dash]; if (real_req_dash) { for (int i = 0; i < req_nb_dash; i++) real_req_dash[i] = req_dash[i] * width; gdk_gc_set_dashes( m_penGC, 0, real_req_dash, req_nb_dash ); delete[] real_req_dash; } else { // No Memory. We use non-scaled dash pattern... gdk_gc_set_dashes( m_penGC, 0, (wxGTKDash*)req_dash, req_nb_dash ); } } GdkCapStyle capStyle = GDK_CAP_ROUND; switch (m_pen.GetCap()) { case wxCAP_PROJECTING: { capStyle = GDK_CAP_PROJECTING; break; } case wxCAP_BUTT: { capStyle = GDK_CAP_BUTT; break; } case wxCAP_ROUND: default: { if (width <= 1) { width = 0; capStyle = GDK_CAP_NOT_LAST; } else { capStyle = GDK_CAP_ROUND; } break; } } GdkJoinStyle joinStyle = GDK_JOIN_ROUND; switch (m_pen.GetJoin()) { case wxJOIN_BEVEL: { joinStyle = GDK_JOIN_BEVEL; break; } case wxJOIN_MITER: { joinStyle = GDK_JOIN_MITER; break; } case wxJOIN_ROUND: default: { joinStyle = GDK_JOIN_ROUND; break; } } gdk_gc_set_line_attributes( m_penGC, width, lineStyle, capStyle, joinStyle ); m_pen.GetColour().CalcPixel( m_cmap ); gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() ); } void wxWindowDCImpl::SetBrush( const wxBrush &brush ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (m_brush == brush) return; m_brush = brush; if (!m_brush.IsOk()) return; if (!m_gdkwindow) return; m_brush.GetColour().CalcPixel( m_cmap ); gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() ); gdk_gc_set_fill( m_brushGC, GDK_SOLID ); if ((m_brush.GetStyle() == wxSTIPPLE) && (m_brush.GetStipple()->IsOk())) { if (m_brush.GetStipple()->GetDepth() != 1) { gdk_gc_set_fill( m_brushGC, GDK_TILED ); gdk_gc_set_tile( m_brushGC, m_brush.GetStipple()->GetPixmap() ); } else { gdk_gc_set_fill( m_brushGC, GDK_STIPPLED ); gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetPixmap() ); } } if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask())) { gdk_gc_set_fill( m_textGC, GDK_OPAQUE_STIPPLED); gdk_gc_set_stipple( m_textGC, m_brush.GetStipple()->GetMask()->GetBitmap() ); } if (m_brush.IsHatch()) { gdk_gc_set_fill( m_brushGC, GDK_STIPPLED ); int num = m_brush.GetStyle() - wxBDIAGONAL_HATCH; gdk_gc_set_stipple( m_brushGC, hatches[num] ); } } void wxWindowDCImpl::SetBackground( const wxBrush &brush ) { /* CMB 21/7/98: Added SetBackground. Sets background brush * for Clear() and bg colour for shapes filled with cross-hatch brush */ wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (m_backgroundBrush == brush) return; m_backgroundBrush = brush; if (!m_backgroundBrush.IsOk()) return; if (!m_gdkwindow) return; m_backgroundBrush.GetColour().CalcPixel( m_cmap ); gdk_gc_set_background( m_brushGC, m_backgroundBrush.GetColour().GetColor() ); gdk_gc_set_background( m_penGC, m_backgroundBrush.GetColour().GetColor() ); gdk_gc_set_background( m_bgGC, m_backgroundBrush.GetColour().GetColor() ); gdk_gc_set_foreground( m_bgGC, m_backgroundBrush.GetColour().GetColor() ); gdk_gc_set_fill( m_bgGC, GDK_SOLID ); if ((m_backgroundBrush.GetStyle() == wxSTIPPLE) && (m_backgroundBrush.GetStipple()->IsOk())) { if (m_backgroundBrush.GetStipple()->GetDepth() != 1) { gdk_gc_set_fill( m_bgGC, GDK_TILED ); gdk_gc_set_tile( m_bgGC, m_backgroundBrush.GetStipple()->GetPixmap() ); } else { gdk_gc_set_fill( m_bgGC, GDK_STIPPLED ); gdk_gc_set_stipple( m_bgGC, m_backgroundBrush.GetStipple()->GetPixmap() ); } } if (m_backgroundBrush.IsHatch()) { gdk_gc_set_fill( m_bgGC, GDK_STIPPLED ); int num = m_backgroundBrush.GetStyle() - wxBDIAGONAL_HATCH; gdk_gc_set_stipple( m_bgGC, hatches[num] ); } } void wxWindowDCImpl::SetLogicalFunction( int function ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (m_logicalFunction == function) return; // VZ: shouldn't this be a CHECK? if (!m_gdkwindow) return; GdkFunction mode; switch (function) { case wxXOR: mode = GDK_XOR; break; case wxINVERT: mode = GDK_INVERT; break; case wxOR_REVERSE: mode = GDK_OR_REVERSE; break; case wxAND_REVERSE: mode = GDK_AND_REVERSE; break; case wxCLEAR: mode = GDK_CLEAR; break; case wxSET: mode = GDK_SET; break; case wxOR_INVERT: mode = GDK_OR_INVERT; break; case wxAND: mode = GDK_AND; break; case wxOR: mode = GDK_OR; break; case wxEQUIV: mode = GDK_EQUIV; break; case wxNAND: mode = GDK_NAND; break; case wxAND_INVERT: mode = GDK_AND_INVERT; break; case wxCOPY: mode = GDK_COPY; break; case wxNO_OP: mode = GDK_NOOP; break; case wxSRC_INVERT: mode = GDK_COPY_INVERT; break; // unsupported by GTK case wxNOR: mode = GDK_COPY; break; default: wxFAIL_MSG( wxT("unsupported logical function") ); mode = GDK_COPY; } m_logicalFunction = function; gdk_gc_set_function( m_penGC, mode ); gdk_gc_set_function( m_brushGC, mode ); // to stay compatible with wxMSW, we don't apply ROPs to the text // operations (i.e. DrawText/DrawRotatedText). // True, but mono-bitmaps use the m_textGC and they use ROPs as well. gdk_gc_set_function( m_textGC, mode ); } void wxWindowDCImpl::SetTextForeground( const wxColour &col ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); // don't set m_textForegroundColour to an invalid colour as we'd crash // later then (we use m_textForegroundColour.GetColor() without checking // in a few places) if ( !col.IsOk() || (m_textForegroundColour == col) ) return; m_textForegroundColour = col; if ( m_gdkwindow ) { m_textForegroundColour.CalcPixel( m_cmap ); gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() ); } } void wxWindowDCImpl::SetTextBackground( const wxColour &col ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); // same as above if ( !col.IsOk() || (m_textBackgroundColour == col) ) return; m_textBackgroundColour = col; if ( m_gdkwindow ) { m_textBackgroundColour.CalcPixel( m_cmap ); gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() ); } } void wxWindowDCImpl::SetBackgroundMode( int mode ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); m_backgroundMode = mode; if (!m_gdkwindow) return; // CMB 21/7/98: fill style of cross-hatch brushes is affected by // transparent/solid background mode if (m_brush.GetStyle() != wxSOLID && m_brush.GetStyle() != wxTRANSPARENT) { gdk_gc_set_fill( m_brushGC, (m_backgroundMode == wxTRANSPARENT) ? GDK_STIPPLED : GDK_OPAQUE_STIPPLED); } } void wxWindowDCImpl::SetPalette( const wxPalette& WXUNUSED(palette) ) { wxFAIL_MSG( wxT("wxWindowDCImpl::SetPalette not implemented") ); } void wxWindowDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (!m_gdkwindow) return; wxRect rect; rect.x = XLOG2DEV(x); rect.y = YLOG2DEV(y); rect.width = XLOG2DEVREL(width); rect.height = YLOG2DEVREL(height); if (m_window && m_window->m_wxwindow && (m_window->GetLayoutDirection() == wxLayout_RightToLeft)) { rect.x -= rect.width; } if (!m_currentClippingRegion.IsNull()) m_currentClippingRegion.Intersect( rect ); else m_currentClippingRegion.Union( rect ); #if USE_PAINT_REGION if (!m_paintClippingRegion.IsNull()) m_currentClippingRegion.Intersect( m_paintClippingRegion ); #endif wxCoord xx, yy, ww, hh; m_currentClippingRegion.GetBox( xx, yy, ww, hh ); #if wxUSE_NEW_DC wxGTKDCImpl::DoSetClippingRegion( xx, yy, ww, hh ); #else wxDC::DoSetClippingRegion( xx, yy, ww, hh ); #endif gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() ); gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() ); gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() ); gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() ); } void wxWindowDCImpl::DoSetClippingRegionAsRegion( const wxRegion ®ion ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (region.Empty()) { DestroyClippingRegion(); return; } if (!m_gdkwindow) return; if (!m_currentClippingRegion.IsNull()) m_currentClippingRegion.Intersect( region ); else m_currentClippingRegion.Union( region ); #if USE_PAINT_REGION if (!m_paintClippingRegion.IsNull()) m_currentClippingRegion.Intersect( m_paintClippingRegion ); #endif wxCoord xx, yy, ww, hh; m_currentClippingRegion.GetBox( xx, yy, ww, hh ); #if wxUSE_NEW_DC wxGTKDCImpl::DoSetClippingRegion( xx, yy, ww, hh ); #else wxDC::DoSetClippingRegion( xx, yy, ww, hh ); #endif gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() ); gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() ); gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() ); gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() ); } void wxWindowDCImpl::DestroyClippingRegion() { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); #if wxUSE_NEW_DC wxDCImpl::DestroyClippingRegion(); #else wxDC::DestroyClippingRegion(); #endif m_currentClippingRegion.Clear(); #if USE_PAINT_REGION if (!m_paintClippingRegion.IsEmpty()) m_currentClippingRegion.Union( m_paintClippingRegion ); #endif if (!m_gdkwindow) return; if (m_currentClippingRegion.IsEmpty()) { gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL ); gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL ); gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL ); gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL ); } else { gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() ); gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() ); gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() ); gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() ); } } void wxWindowDCImpl::Destroy() { if (m_penGC) wxFreePoolGC( m_penGC ); m_penGC = (GdkGC*) NULL; if (m_brushGC) wxFreePoolGC( m_brushGC ); m_brushGC = (GdkGC*) NULL; if (m_textGC) wxFreePoolGC( m_textGC ); m_textGC = (GdkGC*) NULL; if (m_bgGC) wxFreePoolGC( m_bgGC ); m_bgGC = (GdkGC*) NULL; } void wxWindowDCImpl::SetDeviceOrigin( wxCoord x, wxCoord y ) { m_deviceOriginX = x; m_deviceOriginY = y; ComputeScaleAndOrigin(); } void wxWindowDCImpl::SetAxisOrientation( bool xLeftRight, bool yBottomUp ) { m_signX = (xLeftRight ? 1 : -1); m_signY = (yBottomUp ? -1 : 1); if (m_window && m_window->m_wxwindow && (m_window->GetLayoutDirection() == wxLayout_RightToLeft)) m_signX = -m_signX; ComputeScaleAndOrigin(); } void wxWindowDCImpl::ComputeScaleAndOrigin() { const wxRealPoint origScale(m_scaleX, m_scaleY); #if wxUSE_NEW_DC wxDCImpl::ComputeScaleAndOrigin(); #else wxDC::ComputeScaleAndOrigin(); #endif // if scale has changed call SetPen to recalulate the line width if ( wxRealPoint(m_scaleX, m_scaleY) != origScale && m_pen.IsOk() ) { // this is a bit artificial, but we need to force wxDC to think the pen // has changed wxPen pen = m_pen; m_pen = wxNullPen; SetPen( pen ); } } // Resolution in pixels per logical inch wxSize wxWindowDCImpl::GetPPI() const { return wxSize( (int) (m_mm_to_pix_x * 25.4 + 0.5), (int) (m_mm_to_pix_y * 25.4 + 0.5)); } int wxWindowDCImpl::GetDepth() const { return gdk_drawable_get_depth(m_gdkwindow); } //----------------------------------------------------------------------------- // wxClientDCImpl //----------------------------------------------------------------------------- IMPLEMENT_ABSTRACT_CLASS(wxClientDCImpl, wxWindowDCImpl) wxClientDCImpl::wxClientDCImpl( wxDC *owner ) : wxWindowDCImpl( owner ) { } wxClientDCImpl::wxClientDCImpl( wxDC *owner, wxWindow *win ) : wxWindowDCImpl( owner, win ) { wxCHECK_RET( win, _T("NULL window in wxClientDCImpl::wxClientDC") ); #ifdef __WXUNIVERSAL__ wxPoint ptOrigin = win->GetClientAreaOrigin(); SetDeviceOrigin(ptOrigin.x, ptOrigin.y); wxSize size = win->GetClientSize(); DoSetClippingRegion(0, 0, size.x, size.y); #endif // __WXUNIVERSAL__ } void wxClientDCImpl::DoGetSize(int *width, int *height) const { wxCHECK_RET( m_window, _T("GetSize() doesn't work without window") ); m_window->GetClientSize( width, height ); } //----------------------------------------------------------------------------- // wxPaintDCImpl //----------------------------------------------------------------------------- IMPLEMENT_ABSTRACT_CLASS(wxPaintDCImpl, wxClientDCImpl) // Limit the paint region to the window size. Sometimes // the paint region is too big, and this risks X11 errors static void wxLimitRegionToSize(wxRegion& region, const wxSize& sz) { wxRect originalRect = region.GetBox(); wxRect rect(originalRect); if (rect.width + rect.x > sz.x) rect.width = sz.x - rect.x; if (rect.height + rect.y > sz.y) rect.height = sz.y - rect.y; if (rect != originalRect) { region = wxRegion(rect); wxLogTrace(wxT("painting"), wxT("Limiting region from %d, %d, %d, %d to %d, %d, %d, %d\n"), originalRect.x, originalRect.y, originalRect.width, originalRect.height, rect.x, rect.y, rect.width, rect.height); } } wxPaintDCImpl::wxPaintDCImpl( wxDC *owner ) : wxClientDCImpl( owner ) { } wxPaintDCImpl::wxPaintDCImpl( wxDC *owner, wxWindow *win ) : wxClientDCImpl( owner, win ) { #if USE_PAINT_REGION if (!win->m_clipPaintRegion) return; wxSize sz = win->GetSize(); m_paintClippingRegion = win->m_nativeUpdateRegion; wxLimitRegionToSize(m_paintClippingRegion, sz); GdkRegion *region = m_paintClippingRegion.GetRegion(); if ( region ) { m_currentClippingRegion.Union( m_paintClippingRegion ); wxLimitRegionToSize(m_currentClippingRegion, sz); if (sz.x <= 0 || sz.y <= 0) return ; gdk_gc_set_clip_region( m_penGC, region ); gdk_gc_set_clip_region( m_brushGC, region ); gdk_gc_set_clip_region( m_textGC, region ); gdk_gc_set_clip_region( m_bgGC, region ); } #endif } // ---------------------------------------------------------------------------- // wxDCModule // ---------------------------------------------------------------------------- class wxDCModule : public wxModule { public: bool OnInit(); void OnExit(); private: DECLARE_DYNAMIC_CLASS(wxDCModule) }; IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule) bool wxDCModule::OnInit() { wxInitGCPool(); return true; } void wxDCModule::OnExit() { wxCleanUpGCPool(); }