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15f0ad701496612df8c145e8e46d4b38515c0bbf
wxWidgets/src/gtk/dcclient.cpp
Mart Raudsepp 15f0ad7014 gdk_draw_pixmap -> gdk_draw_drawable 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@38545 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2006-04-04 13:46:34 +00:00

2430 lines
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/////////////////////////////////////////////////////////////////////////////
// Name: 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/dcclient.h"
#include "wx/dcmemory.h"
#include "wx/image.h"
#include "wx/module.h"
#include "wx/log.h"
#include "wx/fontutil.h"
#include "wx/gtk/win_gtk.h"
#include "wx/math.h" // for floating-point functions
#include <gdk/gdk.h>
#include <gdk/gdkx.h>
#include <gdk/gdkprivate.h>
#include <gtk/gtk.h>
//-----------------------------------------------------------------------------
// 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, _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);
if (width == -1) width = src_width;
if (height == -1) height = src_height;
XCopyPlane( GDK_WINDOW_XDISPLAY(drawable),
GDK_WINDOW_XID(src),
GDK_WINDOW_XID(drawable),
GDK_GC_XGC(gc),
xsrc, ysrc,
width, 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)
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 (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_DYNAMIC_CLASS(wxWindowDC, wxDC)
wxWindowDC::wxWindowDC()
{
m_penGC = (GdkGC *) NULL;
m_brushGC = (GdkGC *) NULL;
m_textGC = (GdkGC *) NULL;
m_bgGC = (GdkGC *) NULL;
m_cmap = (GdkColormap *) NULL;
m_isMemDC = false;
m_isScreenDC = false;
m_owner = (wxWindow *)NULL;
m_context = (PangoContext *)NULL;
m_layout = (PangoLayout *)NULL;
m_fontdesc = (PangoFontDescription *)NULL;
}
wxWindowDC::wxWindowDC( wxWindow *window )
{
wxASSERT_MSG( window, wxT("DC needs a window") );
m_penGC = (GdkGC *) NULL;
m_brushGC = (GdkGC *) NULL;
m_textGC = (GdkGC *) NULL;
m_bgGC = (GdkGC *) NULL;
m_cmap = (GdkColormap *) NULL;
m_owner = (wxWindow *)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") );
m_context = window->GtkGetPangoDefaultContext();
m_layout = pango_layout_new( m_context );
m_fontdesc = pango_font_description_copy( widget->style->font_desc );
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;
}
wxWindowDC::~wxWindowDC()
{
Destroy();
if (m_layout)
g_object_unref( G_OBJECT( m_layout ) );
if (m_fontdesc)
pango_font_description_free( m_fontdesc );
}
void wxWindowDC::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 && (((wxMemoryDC*)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, (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 wxWindowDC::DoGetSize( int* width, int* height ) const
{
wxCHECK_RET( m_owner, _T("GetSize() doesn't work without window") );
m_owner->GetSize(width, height);
}
extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
const wxColour & col, int style);
bool wxWindowDC::DoFloodFill(wxCoord x, wxCoord y,
const wxColour& col, int style)
{
return wxDoFloodFill(this, x, y, col, style);
}
bool wxWindowDC::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, (wxDC*) this, 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 wxWindowDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
{
wxCHECK_RET( Ok(), 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 wxWindowDC::DoCrossHair( wxCoord x, wxCoord y )
{
wxCHECK_RET( Ok(), 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 wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
wxCoord xc, wxCoord yc )
{
wxCHECK_RET( Ok(), 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 wxWindowDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea )
{
wxCHECK_RET( Ok(), 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 wxWindowDC::DoDrawPoint( wxCoord x, wxCoord y )
{
wxCHECK_RET( Ok(), 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 wxWindowDC::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset )
{
wxCHECK_RET( Ok(), wxT("invalid window dc") );
if (m_pen.GetStyle() == wxTRANSPARENT) return;
if (n <= 0) return;
//Check, if scaling is necessary
bool doScale(true);
long val(10);
if (!xoffset)
if (!yoffset)
if (XLOG2DEV(val)==val)
if (YLOG2DEV(val)==val)
doScale = false;
GdkPoint *gpts = NULL;
if (doScale){
gpts = new GdkPoint[n];
if (! gpts)
{
wxFAIL_MSG( wxT("Cannot allocate PolyLine") );
return;
}
for (int i = 0; i < n; i++)
{
wxCoord x1 = XLOG2DEV(points[i].x + xoffset);
wxCoord y1 = YLOG2DEV(points[i].y + yoffset);
CalcBoundingBox( x1 + xoffset, y1 + yoffset );
gpts[i].x = x1;
gpts[i].y = y1;
}
}
else {
for (int i = 0; i < n; i++) {
CalcBoundingBox( points[i].x, points[i].y );
}
//GdkPoint and wxPoint have the same memory allignment, so we can cast one into another
gpts = reinterpret_cast<GdkPoint*>(points);
}
if (m_window)
gdk_draw_lines( m_window, m_penGC, gpts, n);
if (doScale)
delete[] gpts;
}
void wxWindowDC::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int WXUNUSED(fillStyle) )
{
wxCHECK_RET( Ok(), wxT("invalid window dc") );
if (n <= 0) return;
//Check, if scaling is necessary
bool doScale(true);
long val(10);
if (!xoffset)
if (!yoffset)
if (XLOG2DEV(val)==val)
if (YLOG2DEV(val)==val){
doScale = false;
}
GdkPoint *gdkpoints = NULL;
if (doScale){
gdkpoints = new GdkPoint[n+1]; //FIXME: Why the "+1"
int i;
for (i = 0 ; i < n ; i++)
{
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 );
}
}
else {
int i(0);
for (; i < n ; ++i) {
CalcBoundingBox( points[i].x, points[i].y );
}
//GdkPoint and wxPoint have the same memory allignment, so we can cast one into another
gdkpoints = reinterpret_cast<GdkPoint*> (points);
}
if (m_window)
{
//I think wxSOLID is the most often used style (it is for me),
//so I put it in front of the if ... ifelse's
if (m_brush.GetStyle() == wxSOLID)
{
gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, 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, 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_window, 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_window, 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_window, m_brushGC, TRUE, gdkpoints, n );
gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
}
else
{
gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
}
}
if (m_pen.GetStyle() != wxTRANSPARENT)
{
/*
for (i = 0 ; i < n ; i++)
{
gdk_draw_line( m_window, m_penGC,
gdkpoints[i%n].x,
gdkpoints[i%n].y,
gdkpoints[(i+1)%n].x,
gdkpoints[(i+1)%n].y);
}
*/
gdk_draw_polygon( m_window, m_penGC, FALSE, gdkpoints, n );
}
}
if (doScale)
delete[] gdkpoints;
}
void wxWindowDC::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
wxCHECK_RET( Ok(), 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 wxWindowDC::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius )
{
wxCHECK_RET( Ok(), 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)
{
DrawRectangle( 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 wxWindowDC::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
wxCHECK_RET( Ok(), 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 wxWindowDC::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 wxWindowDC::DoDrawBitmap( const wxBitmap &bitmap,
wxCoord x, wxCoord y,
bool useMask )
{
wxCHECK_RET( Ok(), wxT("invalid window dc") );
wxCHECK_RET( bitmap.Ok(), 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 );
#if !GTK_CHECK_VERSION(2,2,0)
// 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();
#endif
// apply mask if any
GdkBitmap *mask = (GdkBitmap *) NULL;
if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
GdkBitmap *new_mask = (GdkBitmap*) 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)
{
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.GetBitmap(), 0, 0, 0, 0, -1, -1 );
gdk_draw_drawable( m_window, m_textGC, bitmap2, 0, 0, xx, yy, -1, -1 );
gdk_bitmap_unref( bitmap2 );
gdk_gc_unref( gc );
}
else
{
#if GTK_CHECK_VERSION(2,2,0)
if (!gtk_check_version(2,2,0) && use_bitmap.HasPixbuf())
{
gdk_draw_pixbuf(m_window, m_penGC,
use_bitmap.GetPixbuf(),
0, 0, xx, yy, -1, -1,
GDK_RGB_DITHER_NORMAL, xx, yy);
}
else
#endif
{
gdk_draw_drawable(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, (GdkBitmap *) 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, (GdkBitmap *) 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 wxWindowDC::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( Ok(), 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->XLOG2DEV(xsrc);
ysrc = source->YLOG2DEV(ysrc);
wxClientDC *srcDC = (wxClientDC*)source;
wxMemoryDC *memDC = (wxMemoryDC*)source;
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.Ok()) 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;
}
int 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 = (GdkBitmap *) NULL;
if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
GdkBitmap *new_mask = (GdkBitmap*) 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)
{
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.GetBitmap(), 0, 0, 0, 0, -1, -1 );
gdk_draw_drawable( m_window, m_textGC, bitmap, xsrc, ysrc, cx, cy, cw, ch );
gdk_bitmap_unref( bitmap );
gdk_gc_unref( gc );
}
else
{
// was: gdk_draw_drawable( m_window, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, xx, yy, ww, hh );
gdk_draw_drawable( 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, (GdkBitmap *) 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, (GdkBitmap *) 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_drawable( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 );
gdk_draw_drawable( 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_draw_drawable( m_window, m_penGC,
srcDC->GetWindow(),
xsrc, ysrc, xx, yy,
width, height );
gdk_gc_set_subwindow( m_penGC, GDK_CLIP_BY_CHILDREN );
}
}
SetLogicalFunction( old_logical_func );
return true;
}
void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
{
wxCHECK_RET( Ok(), wxT("invalid window dc") );
if (!m_window) 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") );
bool underlined = m_font.Ok() && m_font.GetUnderlined();
#if wxUSE_UNICODE
const wxCharBuffer data = wxConvUTF8.cWC2MB( text );
#else
const wxWCharBuffer wdata = wxConvLocal.cMB2WC( text );
if ( !wdata )
return;
const wxCharBuffer data = wxConvUTF8.cWC2MB( wdata );
#endif
size_t datalen = strlen((const char*)data);
pango_layout_set_text( m_layout, (const char*) 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);
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_window, m_textGC, TRUE, x, y, w, h);
gdk_gc_set_foreground(m_textGC, m_textForegroundColour.GetColor());
}
// Draw layout.
gdk_draw_layout( m_window, 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_window, m_textGC, TRUE, x, y, w, h);
gdk_gc_set_foreground(m_textGC, m_textForegroundColour.GetColor());
}
// Draw layout.
gdk_draw_layout( m_window, 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 wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle )
{
if ( wxIsNullDouble(angle) )
{
DrawText(text, x, y);
return;
}
wxCHECK_RET( Ok(), wxT("invalid window dc") );
if (!m_window) return;
wxCoord w;
wxCoord h;
// TODO: implement later without GdkFont for GTK 2.0
GetTextExtent(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_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 wxWindowDC::DoGetTextExtent(const wxString &string,
wxCoord *width, wxCoord *height,
wxCoord *descent, wxCoord *externalLeading,
wxFont *theFont) const
{
if ( width )
*width = 0;
if ( height )
*height = 0;
if ( descent )
*descent = 0;
if ( externalLeading )
*externalLeading = 0;
if (string.empty())
{
return;
}
// Set new font description
if (theFont)
pango_layout_set_font_description( m_layout, theFont->GetNativeFontInfo()->description );
// Set layout's text
#if wxUSE_UNICODE
const wxCharBuffer data = wxConvUTF8.cWC2MB( string );
const char *dataUTF8 = (const char *)data;
#else
const wxWCharBuffer wdata = wxConvLocal.cMB2WC( string );
if ( !wdata )
return;
const wxCharBuffer data = wxConvUTF8.cWC2MB( wdata );
const char *dataUTF8 = (const char *)data;
#endif
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)
pango_layout_set_font_description( m_layout, m_fontdesc );
}
wxCoord wxWindowDC::GetCharWidth() const
{
pango_layout_set_text( m_layout, "H", 1 );
int w;
pango_layout_get_pixel_size( m_layout, &w, NULL );
return w;
}
wxCoord wxWindowDC::GetCharHeight() const
{
pango_layout_set_text( m_layout, "H", 1 );
int h;
pango_layout_get_pixel_size( m_layout, NULL, &h );
return h;
}
void wxWindowDC::Clear()
{
wxCHECK_RET( Ok(), 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 wxWindowDC::SetFont( const wxFont &font )
{
m_font = font;
if (m_font.Ok())
{
if (m_fontdesc)
pango_font_description_free( m_fontdesc );
m_fontdesc = pango_font_description_copy( m_font.GetNativeFontInfo()->description );
if (m_owner)
{
PangoContext *oldContext = m_context;
m_context = m_owner->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( G_OBJECT( m_layout ) );
m_layout = pango_layout_new( m_context );
}
}
pango_layout_set_font_description( m_layout, m_fontdesc );
}
}
void wxWindowDC::SetPen( const wxPen &pen )
{
wxCHECK_RET( Ok(), wxT("invalid window dc") );
if (m_pen == pen) return;
m_pen = pen;
if (!m_pen.Ok()) 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 = (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 wxWindowDC::SetBrush( const wxBrush &brush )
{
wxCHECK_RET( Ok(), wxT("invalid window dc") );
if (m_brush == brush) return;
m_brush = brush;
if (!m_brush.Ok()) 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()->Ok()))
{
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 wxWindowDC::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( Ok(), wxT("invalid window dc") );
if (m_backgroundBrush == brush) return;
m_backgroundBrush = brush;
if (!m_backgroundBrush.Ok()) 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()->Ok()))
{
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 wxWindowDC::SetLogicalFunction( int function )
{
wxCHECK_RET( Ok(), 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 wxWindowDC::SetTextForeground( const wxColour &col )
{
wxCHECK_RET( Ok(), 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.Ok() || (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 wxWindowDC::SetTextBackground( const wxColour &col )
{
wxCHECK_RET( Ok(), wxT("invalid window dc") );
// same as above
if ( !col.Ok() || (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 wxWindowDC::SetBackgroundMode( int mode )
{
wxCHECK_RET( Ok(), 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 wxWindowDC::SetPalette( const wxPalette& WXUNUSED(palette) )
{
wxFAIL_MSG( wxT("wxWindowDC::SetPalette not implemented") );
}
void wxWindowDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
wxCHECK_RET( Ok(), 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 );
wxDC::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 wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion &region )
{
wxCHECK_RET( Ok(), 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 );
wxDC::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 wxWindowDC::DestroyClippingRegion()
{
wxCHECK_RET( Ok(), wxT("invalid window dc") );
wxDC::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, (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 wxWindowDC::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 wxWindowDC::ComputeScaleAndOrigin()
{
const wxRealPoint origScale(m_scaleX, m_scaleY);
wxDC::ComputeScaleAndOrigin();
// if scale has changed call SetPen to recalulate the line width
if ( wxRealPoint(m_scaleX, m_scaleY) != origScale && m_pen.Ok() )
{
// 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 wxWindowDC::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 wxWindowDC::GetDepth() const
{
return gdk_drawable_get_depth(m_window);
}
//-----------------------------------------------------------------------------
// wxPaintDC
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxClientDC)
// 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);
}
}
wxPaintDC::wxPaintDC( wxWindow *win )
: wxClientDC( 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
}
//-----------------------------------------------------------------------------
// wxClientDC
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxWindowDC)
wxClientDC::wxClientDC( wxWindow *win )
: wxWindowDC( win )
{
wxCHECK_RET( win, _T("NULL window in wxClientDC::wxClientDC") );
#ifdef __WXUNIVERSAL__
wxPoint ptOrigin = win->GetClientAreaOrigin();
SetDeviceOrigin(ptOrigin.x, ptOrigin.y);
wxSize size = win->GetClientSize();
SetClippingRegion(wxPoint(0, 0), size);
#endif // __WXUNIVERSAL__
}
void wxClientDC::DoGetSize(int *width, int *height) const
{
wxCHECK_RET( m_owner, _T("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();
}
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