///////////////////////////////////////////////////////////////////////////// // Name: src/gtk1/dcclient.cpp // Purpose: // Author: Robert Roebling // 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 #ifndef WX_PRECOMP #include "wx/log.h" #include "wx/math.h" // for floating-point functions #include "wx/image.h" #include "wx/module.h" #endif #include "wx/fontutil.h" #include "wx/gtk1/win_gtk.h" #include "wx/gtk1/dcclient.h" #include "wx/gtk1/dcmemory.h" #include #include #include #include //----------------------------------------------------------------------------- // local defines //----------------------------------------------------------------------------- #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 //----------------------------------------------------------------------------- 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 //----------------------------------------------------------------------------- #include "gdk/gdkprivate.h" void gdk_wx_draw_bitmap(GdkDrawable *drawable, GdkGC *gc, GdkDrawable *src, gint xsrc, gint ysrc, gint xdest, gint ydest, gint width, gint height) { wxCHECK_RET( drawable, wxT("NULL drawable in gdk_wx_draw_bitmap") ); wxCHECK_RET( src, wxT("NULL src in gdk_wx_draw_bitmap") ); wxCHECK_RET( gc, wxT("NULL gc in gdk_wx_draw_bitmap") ); GdkWindowPrivate *drawable_private; GdkWindowPrivate *src_private; GdkGCPrivate *gc_private; drawable_private = (GdkWindowPrivate*) drawable; src_private = (GdkWindowPrivate*) src; if (drawable_private->destroyed || src_private->destroyed) return; gint src_width = src_private->width; gint src_height = src_private->height; gc_private = (GdkGCPrivate*) gc; if (width == -1) width = src_width; if (height == -1) height = src_height; XCopyPlane( drawable_private->xdisplay, src_private->xwindow, drawable_private->xwindow, gc_private->xgc, xsrc, ysrc, width, height, xdest, ydest, 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) gdk_gc_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 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") ); } //----------------------------------------------------------------------------- // wxWindowDCImpl //----------------------------------------------------------------------------- IMPLEMENT_ABSTRACT_CLASS(wxWindowDCImpl, wxDC) wxWindowDCImpl::wxWindowDCImpl(wxDC *owner) : wxGTKDCImpl(owner) { m_penGC = NULL; m_brushGC = NULL; m_textGC = NULL; m_bgGC = NULL; m_cmap = NULL; m_isMemDC = false; m_isScreenDC = false; m_owner = NULL; } wxWindowDCImpl::wxWindowDCImpl(wxDC *owner, wxWindow *window) : wxGTKDCImpl(owner) { wxASSERT_MSG( window, wxT("DC needs a window") ); m_penGC = NULL; m_brushGC = NULL; m_textGC = NULL; m_bgGC = NULL; m_cmap = NULL; m_owner = NULL; m_isMemDC = false; 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") ); GtkPizza *pizza = GTK_PIZZA( widget ); m_window = pizza->bin_window; // Window not realized ? if (!m_window) { // 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_owner = window; } wxWindowDCImpl::~wxWindowDCImpl() { Destroy(); } void wxWindowDCImpl::SetUpDC() { m_ok = true; wxASSERT_MSG( !m_penGC, wxT("GCs already created") ); if (m_isScreenDC) { m_penGC = wxGetPoolGC( m_window, wxPEN_SCREEN ); m_brushGC = wxGetPoolGC( m_window, wxBRUSH_SCREEN ); m_textGC = wxGetPoolGC( m_window, wxTEXT_SCREEN ); m_bgGC = wxGetPoolGC( m_window, wxBG_SCREEN ); } else if (m_isMemDC && (((wxMemoryDCImpl*)this)->m_selected.GetDepth() == 1)) { m_penGC = wxGetPoolGC( m_window, wxPEN_MONO ); m_brushGC = wxGetPoolGC( m_window, wxBRUSH_MONO ); m_textGC = wxGetPoolGC( m_window, wxTEXT_MONO ); m_bgGC = wxGetPoolGC( m_window, wxBG_MONO ); } else { m_penGC = wxGetPoolGC( m_window, wxPEN_COLOUR ); m_brushGC = wxGetPoolGC( m_window, wxBRUSH_COLOUR ); m_textGC = wxGetPoolGC( m_window, wxTEXT_COLOUR ); m_bgGC = wxGetPoolGC( m_window, wxBG_COLOUR ); } /* background colour */ m_backgroundBrush = *wxWHITE_BRUSH; m_backgroundBrush.GetColour().CalcPixel( m_cmap ); 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 ); /* 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, NULL ); gdk_gc_set_clip_rectangle( m_brushGC, NULL ); gdk_gc_set_clip_rectangle( m_textGC, NULL ); gdk_gc_set_clip_rectangle( m_bgGC, NULL ); if (!hatch_bitmap) { hatch_bitmap = hatches; hatch_bitmap[0] = gdk_bitmap_create_from_data( NULL, bdiag_bits, bdiag_width, bdiag_height ); hatch_bitmap[1] = gdk_bitmap_create_from_data( NULL, cdiag_bits, cdiag_width, cdiag_height ); hatch_bitmap[2] = gdk_bitmap_create_from_data( NULL, fdiag_bits, fdiag_width, fdiag_height ); hatch_bitmap[3] = gdk_bitmap_create_from_data( NULL, cross_bits, cross_width, cross_height ); hatch_bitmap[4] = gdk_bitmap_create_from_data( NULL, horiz_bits, horiz_width, horiz_height ); hatch_bitmap[5] = gdk_bitmap_create_from_data( NULL, verti_bits, verti_width, verti_height ); } } void wxWindowDCImpl::DoGetSize( int* width, int* height ) const { wxCHECK_RET( m_owner, wxT("GetSize() doesn't work without window") ); m_owner->GetSize(width, height); } extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y, const wxColour & col, wxFloodFillStyle style); bool wxWindowDCImpl::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, wxFloodFillStyle style) { return wxDoFloodFill(GetOwner(), x, y, col, style); } bool wxWindowDCImpl::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const { // 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; } 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_window) gdk_draw_line( m_window, 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; GetSize( &w, &h ); wxCoord xx = XLOG2DEV(x); wxCoord yy = YLOG2DEV(y); if (m_window) { gdk_draw_line( m_window, m_penGC, 0, yy, XLOG2DEVREL(w), yy ); gdk_draw_line( m_window, 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_window) { 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_window, 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_window, 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_window, 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_window, 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_window, m_brushGC, TRUE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); } } if (m_pen.GetStyle() != wxTRANSPARENT) { gdk_draw_arc( m_window, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 ); gdk_draw_line( m_window, m_penGC, xx1, yy1, xxc, yyc ); gdk_draw_line( m_window, 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_window) { 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_window, 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_window, 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_window, 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_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else { gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, start, end ); } } if (m_pen.GetStyle() != wxTRANSPARENT) gdk_draw_arc( m_window, 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_window) gdk_draw_point( m_window, m_penGC, XLOG2DEV(x), YLOG2DEV(y) ); CalcBoundingBox (x, y); } void wxWindowDCImpl::DoDrawLines( int n, const wxPoint points[], wxCoord xoffset, wxCoord yoffset ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (m_pen.GetStyle() == wxTRANSPARENT) return; if (n <= 0) return; GdkPoint * const gpts = new GdkPoint[n]; if ( !gpts ) { wxFAIL_MSG( wxT("Cannot allocate PolyLine") ); return; } for (int i = 0; i < n; i++) { wxCoord x = points[i].x + xoffset, y = points[i].y + yoffset; CalcBoundingBox(x + xoffset, y + yoffset); gpts[i].x = XLOG2DEV(x); gpts[i].y = YLOG2DEV(y); } gdk_draw_lines( m_window, m_penGC, gpts, n); delete[] gpts; } void wxWindowDCImpl::DoDrawPolygon( int n, const wxPoint points[], wxCoord xoffset, wxCoord yoffset, wxPolygonFillMode WXUNUSED(fillStyle) ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (n <= 0) return; GdkPoint * const gpts = new GdkPoint[n]; for (int i = 0 ; i < n ; i++) { wxCoord x = points[i].x + xoffset, y = points[i].y + yoffset; CalcBoundingBox(x + xoffset, y + yoffset); gpts[i].x = XLOG2DEV(x); gpts[i].y = YLOG2DEV(y); } if (m_brush.GetStyle() == wxSOLID) { gdk_draw_polygon( m_window, m_brushGC, TRUE, gpts, n ); } else 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_window, m_textGC, TRUE, gpts, 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_window, m_brushGC, TRUE, gpts, 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_window, m_brushGC, TRUE, gpts, 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_window, m_brushGC, TRUE, gpts, n ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else { gdk_draw_polygon( m_window, m_brushGC, TRUE, gpts, n ); } } if (m_pen.GetStyle() != wxTRANSPARENT) { gdk_draw_polygon( m_window, m_penGC, FALSE, gpts, n ); } delete[] gpts; } 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_window) { 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_window, 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_window, 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_window, 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_window, m_brushGC, TRUE, xx, yy, ww, hh ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else { gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh ); } } if (m_pen.GetStyle() != wxTRANSPARENT) gdk_draw_rectangle( m_window, 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_window) { // 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_window, m_textGC, TRUE, xx+rr, yy, ww-dd+1, hh ); gdk_draw_rectangle( m_window, m_textGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); gdk_draw_arc( m_window, m_textGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); gdk_draw_arc( m_window, m_textGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); gdk_draw_arc( m_window, m_textGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); gdk_draw_arc( m_window, 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_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); gdk_draw_arc( m_window, 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_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); gdk_draw_arc( m_window, 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_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); gdk_draw_arc( m_window, 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_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh ); gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 ); } } if (m_pen.GetStyle() != wxTRANSPARENT) { gdk_draw_line( m_window, m_penGC, xx+rr+1, yy, xx+ww-rr, yy ); gdk_draw_line( m_window, m_penGC, xx+rr+1, yy+hh, xx+ww-rr, yy+hh ); gdk_draw_line( m_window, m_penGC, xx, yy+rr+1, xx, yy+hh-rr ); gdk_draw_line( m_window, m_penGC, xx+ww, yy+rr+1, xx+ww, yy+hh-rr ); gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, dd, dd, 90*64, 90*64 ); gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy, dd, dd, 0, 90*64 ); gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 ); gdk_draw_arc( m_window, 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_window) { 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_window, 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_window, 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_window, 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_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); gdk_gc_set_ts_origin( m_brushGC, 0, 0 ); } else { gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 ); } } if (m_pen.GetStyle() != wxTRANSPARENT) gdk_draw_arc( m_window, 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.GetBitmap() != NULL); // scale/translate size and position int xx = XLOG2DEV(x); int yy = YLOG2DEV(y); int w = bitmap.GetWidth(); int h = bitmap.GetHeight(); CalcBoundingBox( x, y ); CalcBoundingBox( x + w, y + h ); if (!m_window) 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 ); // NB: We can't render pixbufs with GTK+ < 2.2, we need to use pixmaps code. // Pixbufs-based bitmaps with alpha channel don't have a mask, so we // have to call GetPixmap() here -- it converts the pixbuf into pixmap // and also creates the mask as a side-effect: use_bitmap.GetPixmap(); // apply mask if any GdkBitmap *mask = NULL; if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap(); GdkBitmap *new_mask = NULL; if (useMask && mask) { 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 ); gdk_gc_unref( gc ); } if (is_mono) { if (new_mask) gdk_gc_set_clip_mask( m_textGC, new_mask ); else gdk_gc_set_clip_mask( m_textGC, mask ); gdk_gc_set_clip_origin( m_textGC, xx, yy ); } else { if (new_mask) gdk_gc_set_clip_mask( m_penGC, new_mask ); else gdk_gc_set_clip_mask( m_penGC, mask ); gdk_gc_set_clip_origin( m_penGC, 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) { gdk_wx_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), 0, 0, xx, yy, -1, -1 ); } else { gdk_draw_pixmap(m_window, m_penGC, use_bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1); } // remove mask again if any if (useMask && mask) { if (is_mono) { gdk_gc_set_clip_mask( m_textGC, NULL ); gdk_gc_set_clip_origin( m_textGC, 0, 0 ); if (!m_currentClippingRegion.IsNull()) gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() ); } else { gdk_gc_set_clip_mask( m_penGC, NULL ); gdk_gc_set_clip_origin( m_penGC, 0, 0 ); if (!m_currentClippingRegion.IsNull()) gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() ); } } if (new_mask) gdk_bitmap_unref( new_mask ); } bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, wxDC *source, wxCoord xsrc, wxCoord ysrc, wxRasterOperationMode 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_window) return false; // transform the source DC coords to the device ones xsrc = source->LogicalToDeviceX(xsrc); ysrc = source->LogicalToDeviceY(ysrc); wxWindowDCImpl *srcDC = wxDynamicCast(source->GetImpl(), wxWindowDCImpl); wxCHECK_MSG( srcDC, false, "source must be a window DC" ); // FIXME: this cast is not always valid, see the code using m_isMemDC wxMemoryDCImpl *memDC = static_cast(srcDC); bool use_bitmap_method = false; bool is_mono = false; if (xsrcMask == -1 && ysrcMask == -1) { xsrcMask = xsrc; ysrcMask = ysrc; } if (srcDC->m_isMemDC) { if (!memDC->m_selected.IsOk()) return false; is_mono = (memDC->m_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 && (memDC->m_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 == memDC->m_selected.GetWidth()) && (height == memDC->m_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; } else { use_bitmap_method = false; } } 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; } wxRasterOperationMode old_logical_func = m_logicalFunction; SetLogicalFunction( logical_func ); if (use_bitmap_method) { // scale/translate bitmap size wxCoord bm_width = memDC->m_selected.GetWidth(); wxCoord bm_height = memDC->m_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; if ((memDC->m_selected.GetWidth()!= bm_ww) || ( memDC->m_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 ); tmp.Intersect( m_currentClippingRegion ); tmp.GetBox(cx,cy,cw,ch); // Scale and clipped bitmap use_bitmap = memDC->m_selected.Rescale(cx-xx,cy-yy,cw,ch,bm_ww,bm_hh); } else { // Don't scale bitmap use_bitmap = memDC->m_selected; } // apply mask if any GdkBitmap *mask = NULL; if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap(); GdkBitmap *new_mask = NULL; if (useMask && mask) { 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 ); gdk_gc_unref( gc ); } if (is_mono) { if (new_mask) { gdk_gc_set_clip_mask( m_textGC, new_mask ); gdk_gc_set_clip_origin( m_textGC, cx, cy ); } else { gdk_gc_set_clip_mask( m_textGC, mask ); gdk_gc_set_clip_origin( m_textGC, cx-xsrcMask, cy-ysrcMask ); } } else { if (new_mask) { gdk_gc_set_clip_mask( m_penGC, new_mask ); gdk_gc_set_clip_origin( m_penGC, cx, cy ); } else { gdk_gc_set_clip_mask( m_penGC, mask ); gdk_gc_set_clip_origin( m_penGC, 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) { // was: gdk_wx_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), xsrc, ysrc, xx, yy, ww, hh ); gdk_wx_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), xsrc, ysrc, cx, cy, cw, ch ); } else { // was: gdk_draw_pixmap( m_window, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, xx, yy, ww, hh ); gdk_draw_pixmap( m_window, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, cx, cy, cw, ch ); } // remove mask again if any if (useMask && mask) { if (is_mono) { gdk_gc_set_clip_mask( m_textGC, NULL ); gdk_gc_set_clip_origin( m_textGC, 0, 0 ); if (!m_currentClippingRegion.IsNull()) gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() ); } else { gdk_gc_set_clip_mask( m_penGC, NULL ); gdk_gc_set_clip_origin( m_penGC, 0, 0 ); if (!m_currentClippingRegion.IsNull()) gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() ); } } if (new_mask) gdk_bitmap_unref( new_mask ); } else // use_bitmap_method { if ((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 = memDC->m_selected.Rescale( cx-xx, cy-yy, cw, ch, ww, hh ); // draw scaled bitmap // was: gdk_draw_pixmap( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 ); gdk_draw_pixmap( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, cx, cy, -1, -1 ); } else { // No scaling and not a memory dc with a mask either // copy including child window contents gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS ); gdk_window_copy_area( m_window, m_penGC, xx, yy, srcDC->GetWindow(), xsrc, ysrc, 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_window) return; if (text.empty()) return; GdkFont *font = m_font.GetInternalFont( m_scaleY ); wxCHECK_RET( font, wxT("invalid font") ); x = XLOG2DEV(x); y = YLOG2DEV(y); wxCoord width = gdk_string_width( font, text.mbc_str() ); wxCoord height = font->ascent + font->descent; if ( m_backgroundMode == wxSOLID ) { gdk_gc_set_foreground( m_textGC, m_textBackgroundColour.GetColor() ); gdk_draw_rectangle( m_window, m_textGC, TRUE, x, y, width, height ); gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() ); } gdk_draw_string( m_window, font, m_textGC, x, y + font->ascent, text.mbc_str() ); /* CMB 17/7/98: simple underline: ignores scaling and underlying X font's XA_UNDERLINE_POSITION and XA_UNDERLINE_THICKNESS properties (see wxXt implementation) */ if (m_font.GetUnderlined()) { wxCoord ul_y = y + font->ascent; if (font->descent > 0) ul_y++; gdk_draw_line( m_window, m_textGC, x, ul_y, x + width, ul_y); } 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 ( wxIsNullDouble(angle) ) { DoDrawText(text, x, y); return; } wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (!m_window) return; wxCoord w; wxCoord h; GdkFont *font = m_font.GetInternalFont( m_scaleY ); wxCHECK_RET( font, wxT("invalid font") ); // the size of the text w = gdk_string_width( font, text.mbc_str() ); h = font->ascent + font->descent; // 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_window, 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); } 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; } wxFont fontToUse = m_font; if (theFont) fontToUse = *theFont; GdkFont *font = fontToUse.GetInternalFont( m_scaleY ); if ( !font ) return; if (width) *width = wxCoord(gdk_string_width( font, string.mbc_str() ) / m_scaleX); if (height) *height = wxCoord((font->ascent + font->descent) / m_scaleY); if (descent) *descent = wxCoord(font->descent / m_scaleY); } wxCoord wxWindowDCImpl::GetCharWidth() const { GdkFont *font = m_font.GetInternalFont( m_scaleY ); wxCHECK_MSG( font, -1, wxT("invalid font") ); return wxCoord(gdk_string_width( font, "H" ) / m_scaleX); } wxCoord wxWindowDCImpl::GetCharHeight() const { GdkFont *font = m_font.GetInternalFont( m_scaleY ); wxCHECK_MSG( font, -1, wxT("invalid font") ); return wxCoord((font->ascent + font->descent) / m_scaleY); } void wxWindowDCImpl::Clear() { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (!m_window) return; // VZ: the code below results in infinite recursion and crashes when // dc.Clear() is done from OnPaint() so I disable it for now. // I don't know what the correct fix is but Clear() surely should not // reenter OnPaint()! #if 0 /* - we either are a memory dc or have a window as the owner. anything else shouldn't happen. - we don't use gdk_window_clear() as we don't set the window's background colour anymore. it is too much pain to keep the DC's and the window's back- ground colour in synch. */ if (m_owner) { m_owner->Clear(); return; } if (m_isMemDC) { int width,height; GetSize( &width, &height ); gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height ); return; } #else // 1 int width,height; GetSize( &width, &height ); gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height ); #endif // 0/1 } void wxWindowDCImpl::SetFont( const wxFont &font ) { m_font = font; } 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_window) 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 = 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_window) 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()->GetPixmap()) { 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()->GetBitmap() ); } } 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_window) 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()->GetPixmap()) { 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()->GetBitmap() ); } } 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( wxRasterOperationMode function ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (m_logicalFunction == function) return; // VZ: shouldn't this be a CHECK? if (!m_window) 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_window ) { 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_window ) { 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_window) 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_window) return; wxRect rect; rect.x = XLOG2DEV(x); rect.y = YLOG2DEV(y); rect.width = XLOG2DEVREL(width); rect.height = YLOG2DEVREL(height); 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 ); wxGTKDCImpl::DoSetClippingRegion( xx, yy, ww, hh ); 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::DoSetDeviceClippingRegion( const wxRegion ®ion ) { wxCHECK_RET( IsOk(), wxT("invalid window dc") ); if (region.Empty()) { DestroyClippingRegion(); return; } if (!m_window) 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 ); wxGTKDCImpl::DoSetClippingRegion( xx, yy, ww, hh ); 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") ); wxGTKDCImpl::DestroyClippingRegion(); m_currentClippingRegion.Clear(); #if USE_PAINT_REGION if (!m_paintClippingRegion.IsEmpty()) m_currentClippingRegion.Union( m_paintClippingRegion ); #endif if (!m_window) return; if (m_currentClippingRegion.IsEmpty()) { gdk_gc_set_clip_rectangle( m_penGC, NULL ); gdk_gc_set_clip_rectangle( m_brushGC, NULL ); gdk_gc_set_clip_rectangle( m_textGC, NULL ); gdk_gc_set_clip_rectangle( m_bgGC, 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 = NULL; if (m_brushGC) wxFreePoolGC( m_brushGC ); m_brushGC = NULL; if (m_textGC) wxFreePoolGC( m_textGC ); m_textGC = NULL; if (m_bgGC) wxFreePoolGC( m_bgGC ); m_bgGC = NULL; } void wxWindowDCImpl::ComputeScaleAndOrigin() { const wxRealPoint origScale(m_scaleX, m_scaleY); wxGTKDCImpl::ComputeScaleAndOrigin(); // if scale has changed call SetPen to recalculate 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 { wxFAIL_MSG(wxT("not implemented")); return -1; } //----------------------------------------------------------------------------- // 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, wxWindow *win) : wxClientDCImpl(owner, win) { #if USE_PAINT_REGION if (!win->m_clipPaintRegion) return; wxSize sz = win->GetSize(); m_paintClippingRegion = win->GetUpdateRegion(); 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 // USE_PAINT_REGION } //----------------------------------------------------------------------------- // wxClientDCImpl //----------------------------------------------------------------------------- IMPLEMENT_ABSTRACT_CLASS(wxClientDCImpl, wxWindowDCImpl) wxClientDCImpl::wxClientDCImpl(wxDC *owner, wxWindow *win) : wxWindowDCImpl(owner, win) { wxCHECK_RET( win, wxT("NULL window in wxClientDCImpl::wxClientDCImpl") ); #ifdef __WXUNIVERSAL__ wxPoint ptOrigin = win->GetClientAreaOrigin(); SetDeviceOrigin(ptOrigin.x, ptOrigin.y); wxSize size = win->GetClientSize(); SetClippingRegion(wxPoint(0, 0), size); #endif // __WXUNIVERSAL__ } void wxClientDCImpl::DoGetSize(int *width, int *height) const { wxCHECK_RET( m_owner, wxT("GetSize() doesn't work without window") ); m_owner->GetClientSize( width, height ); } // ---------------------------------------------------------------------------- // 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(); }