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wxWidgets/src/motif/dcclient.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: src/motif/dcclient.cpp
// Purpose: wxClientDC class
// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
/*
About pens, brushes, and the m_autoSetting flag:
Under X, pens and brushes control some of the same X drawing
parameters. Therefore, it is impossible to independently maintain
the current pen and the current brush. Also, some settings depend on
the current logical function. The m_currentFill, etc. instance
variables remember state across the brush and pen.
Since pens are used more than brushes, the m_autoSetting flag is used to
indicate that a brush was recently used, and SetPen must be called to
reinstall the current pen's parameters. If m_autoSetting includes 0x2, then the
pens color may need to be set based on XOR.
There is, unfortunately, some confusion between setting the current pen/brush
and actually installing the brush/pen parameters. Both functionalies are
perform by SetPen and SetBrush. C'est la vie.
*/
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#include "wx/dcclient.h"
#ifndef WX_PRECOMP
#include "wx/log.h"
#include "wx/app.h"
#include "wx/window.h"
#include "wx/dcmemory.h"
#include "wx/math.h"
#include "wx/image.h"
#endif
#ifdef __VMS__
#pragma message disable nosimpint
#endif
#include <Xm/Xm.h>
#ifdef __VMS__
#pragma message enable nosimpint
#endif
#include "wx/motif/private.h"
#ifdef __EMX__
#include <float.h> // for M_PI
#endif // __EMX__
#include "bdiag.xbm"
#include "fdiag.xbm"
#include "cdiag.xbm"
#include "horiz.xbm"
#include "verti.xbm"
#include "cross.xbm"
static Pixmap bdiag, cdiag, fdiag, cross, horiz, verti;
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// Fudge factor (VZ: what??)
#define WX_GC_CF 1
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxWindowDC)
IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxWindowDC)
IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC)
#define IS_HATCH(s) ((s)>=wxFIRST_HATCH && (s)<=wxLAST_HATCH)
// FIXME: left over after removal of wxDC::GetOptimization()
#define GET_OPTIMIZATION false
// ----------------------------------------------------------------------------
// prototypes
// ----------------------------------------------------------------------------
static void XCopyRemote(Display *src_display, Display *dest_display,
Drawable src, Drawable dest,
GC destgc,
int srcx, int srcy,
unsigned int w, unsigned int h,
int destx, int desty,
bool more, XImage **cache);
// ============================================================================
// implementation
// ============================================================================
/*
* compare two doubles and return the larger rounded
* to the nearest int
*/
static int roundmax(double a, double b)
{
return (int)((a > b ? a : b) + 0.5);
}
/*
* compare two doubles and return the smaller rounded
* to the nearest int
*/
static int roundmin(double a, double b)
{
return (int)((a < b ? a : b) - 0.5);
}
// ----------------------------------------------------------------------------
// wxWindowDC
// ----------------------------------------------------------------------------
void wxWindowDC::Init()
{
m_gc = (WXGC) 0;
m_gcBacking = (WXGC) 0;
m_window = NULL;
m_backgroundPixel = -1;
m_currentPenWidth = 1;
m_currentPenJoin = -1;
m_currentPenDashCount = -1;
m_currentPenDash = (wxX11Dash*) NULL;
m_currentStyle = -1;
m_currentFill = -1;
m_colour = wxColourDisplay();
m_display = (WXDisplay*) NULL;
m_pixmap = (WXPixmap) 0;
m_autoSetting = 0;
m_ok = false;
m_clipRegion = (WXRegion) 0;
}
wxWindowDC::wxWindowDC()
{
Init();
}
wxWindowDC::wxWindowDC( wxWindow *window )
{
wxASSERT_MSG( (window != (wxWindow*) NULL), "You must pass a valid wxWindow to wxWindowDC/wxClientDC/wxPaintDC constructor." );
Init();
m_window = window;
m_font = window->GetFont();
m_ok = true;
m_display = window->GetXDisplay();
m_pixmap = window->GetXWindow();
Display* display = (Display*) m_display;
XSetWindowColormap (display, (Pixmap) m_pixmap, (Colormap) wxTheApp->GetMainColormap(m_display));
XGCValues gcvalues;
gcvalues.foreground = BlackPixel (display, DefaultScreen (display));
gcvalues.background = WhitePixel (display, DefaultScreen (display));
gcvalues.graphics_exposures = False;
gcvalues.subwindow_mode = IncludeInferiors;
gcvalues.line_width = 1;
#if !wxMOTIF_NEW_FONT_HANDLING
WXFontStructPtr pFontStruct = m_font.GetFontStruct(m_userScaleY*m_logicalScaleY, m_display);
gcvalues.font = ((XFontStruct*)pFontStruct)->fid;
#endif
m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)),
GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode
#if !wxMOTIF_NEW_FONT_HANDLING
| GCFont
#endif
,
&gcvalues);
if (m_window->GetBackingPixmap())
{
m_gcBacking = (WXGC) XCreateGC (display, RootWindow (display,
DefaultScreen (display)),
GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode,
&gcvalues);
}
m_backgroundPixel = gcvalues.background;
SetBackground(wxBrush(m_window->GetBackgroundColour(), wxSOLID));
}
wxWindowDC::~wxWindowDC()
{
if (m_gc)
XFreeGC ((Display*) m_display, (GC) m_gc);
m_gc = (WXGC) 0;
if (m_gcBacking)
XFreeGC ((Display*) m_display, (GC) m_gcBacking);
m_gcBacking = (WXGC) 0;
if (m_clipRegion)
XDestroyRegion ((Region) m_clipRegion);
m_clipRegion = (WXRegion) 0;
}
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(), "invalid dc" );
int x1d, y1d, x2d, y2d;
x1d = XLOG2DEV(x1);
y1d = YLOG2DEV(y1);
x2d = XLOG2DEV(x2);
y2d = YLOG2DEV(y2);
if (m_autoSetting)
SetPen (m_pen);
XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, x1d, y1d, x2d, y2d);
if (m_window && m_window->GetBackingPixmap())
XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
XLOG2DEV_2(x1), YLOG2DEV_2(y1),
XLOG2DEV_2(x2), YLOG2DEV_2(y2));
CalcBoundingBox(x1, y1);
CalcBoundingBox(x2, y2);
}
void wxWindowDC::DoCrossHair( wxCoord x, wxCoord y )
{
wxCHECK_RET( Ok(), "invalid dc" );
if (m_autoSetting)
SetPen (m_pen);
int xx = XLOG2DEV (x);
int yy = YLOG2DEV (y);
int ww, hh;
wxDisplaySize (&ww, &hh);
XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, 0, yy,
ww, yy);
XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xx, 0,
xx, hh);
if (m_window && m_window->GetBackingPixmap())
{
xx = XLOG2DEV_2 (x);
yy = YLOG2DEV_2 (y);
XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
0, yy,
ww, yy);
XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
xx, 0,
xx, hh);
}
}
void wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc )
{
wxCHECK_RET( Ok(), "invalid dc" );
int xx1 = XLOG2DEV (x1);
int yy1 = YLOG2DEV (y1);
int xx2 = XLOG2DEV (x2);
int yy2 = YLOG2DEV (y2);
int xxc = XLOG2DEV (xc);
int yyc = YLOG2DEV (yc);
int xxc_2 = XLOG2DEV_2 (xc);
int yyc_2 = YLOG2DEV_2 (yc);
wxCoord dx = xx1 - xxc;
wxCoord 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 (radius == 0.0)
radius1 = radius2 = 0.0;
else
{
if (xx1 - xxc == 0)
if (yy1 - yyc < 0)
radius1 = 90.0;
else
radius1 = -90.0;
else
radius1 = -atan2 ((double) (yy1 - yyc), (double) (xx1 - xxc)) * 360.0 / (2 * M_PI);
if (xx2 - xxc == 0)
if (yy2 - yyc < 0)
radius2 = 90.0;
else
radius2 = -90.0;
else
radius2 = -atan2 ((double) (yy2 - yyc), (double) (xx2 - xxc)) * 360.0 / (2 * M_PI);
}
radius1 *= 64.0;
radius2 *= 64.0;
int alpha1 = (int) radius1;
int alpha2 = (int) (radius2 - radius1);
while (alpha2 <= 0)
alpha2 += 360 * 64;
while (alpha2 > 360 * 64)
alpha2 -= 360 * 64;
if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
{
SetBrush (m_brush);
XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) (GC) m_gc,
xxc - r, yyc - r, 2 * r, 2 * r, alpha1, alpha2);
if (m_window && m_window->GetBackingPixmap())
XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
xxc_2 - r, yyc_2 - r, 2 * r, 2 * r, alpha1, alpha2);
}
if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
{
if (m_autoSetting)
SetPen (m_pen);
XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc,
xxc - r, yyc - r, 2 * r, 2 * r, alpha1, alpha2);
if (m_window && m_window->GetBackingPixmap())
XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
xxc_2 - r, yyc_2 - r, 2 * r, 2 * r, alpha1, alpha2);
}
CalcBoundingBox (x1, y1);
CalcBoundingBox (x2, y2);
}
void wxWindowDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea )
{
wxCHECK_RET( Ok(), "invalid dc" );
int xd, yd, wd, hd;
xd = XLOG2DEV(x);
yd = YLOG2DEV(y);
wd = XLOG2DEVREL(width);
hd = YLOG2DEVREL(height);
if (sa>=360 || sa<=-360) sa=sa-int(sa/360)*360;
if (ea>=360 || ea<=-360) ea=ea-int(ea/360)*360;
int start = int(sa*64);
int end = int(ea*64);
if (start<0) start+=360*64;
if (end <0) end +=360*64;
if (end>start) end-=start;
else end+=360*64-start;
if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
{
m_autoSetting = true; // must be reset
SetBrush (m_brush);
XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, start, end);
if (m_window && m_window->GetBackingPixmap())
XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
XLOG2DEV_2 (x), YLOG2DEV_2 (y),wd,hd,start,end);
}
if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
{
if (m_autoSetting)
SetPen (m_pen);
XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, start,end);
if (m_window && m_window->GetBackingPixmap())
XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
XLOG2DEV_2 (x), YLOG2DEV_2 (y),wd,hd,start,end);
}
CalcBoundingBox (x, y);
CalcBoundingBox (x + width, y + height);
}
void wxWindowDC::DoDrawPoint( wxCoord x, wxCoord y )
{
wxCHECK_RET( Ok(), "invalid dc" );
if (m_pen.Ok() && m_autoSetting)
SetPen (m_pen);
XDrawPoint ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y));
if (m_window && m_window->GetBackingPixmap())
XDrawPoint ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, XLOG2DEV_2 (x), YLOG2DEV_2 (y));
CalcBoundingBox (x, y);
}
void wxWindowDC::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset )
{
wxCHECK_RET( Ok(), "invalid dc" );
if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
{
if (m_autoSetting)
SetPen (m_pen);
XPoint *xpoints = new XPoint[n];
int i;
for (i = 0; i < n; i++)
{
xpoints[i].x = (short)XLOG2DEV (points[i].x + xoffset);
xpoints[i].y = (short)YLOG2DEV (points[i].y + yoffset);
}
XDrawLines ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints, n, 0);
if (m_window && m_window->GetBackingPixmap())
{
for (i = 0; i < n; i++)
{
xpoints[i].x = (short)XLOG2DEV_2 (points[i].x + xoffset);
xpoints[i].y = (short)YLOG2DEV_2 (points[i].y + yoffset);
}
XDrawLines ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints, n, 0);
}
delete[]xpoints;
}
}
void wxWindowDC::DoDrawPolygon( int n, wxPoint points[],
wxCoord xoffset, wxCoord yoffset, int fillStyle )
{
wxCHECK_RET( Ok(), "invalid dc" );
XPoint *xpoints1 = new XPoint[n + 1];
XPoint *xpoints2 = new XPoint[n + 1];
int i;
for (i = 0; i < n; i++)
{
xpoints1[i].x = (short)XLOG2DEV (points[i].x + xoffset);
xpoints1[i].y = (short)YLOG2DEV (points[i].y + yoffset);
xpoints2[i].x = (short)XLOG2DEV_2 (points[i].x + xoffset);
xpoints2[i].y = (short)YLOG2DEV_2 (points[i].y + yoffset);
CalcBoundingBox (points[i].x + xoffset, points[i].y + yoffset);
}
// Close figure for XDrawLines (not needed for XFillPolygon)
xpoints1[i].x = xpoints1[0].x;
xpoints1[i].y = xpoints1[0].y;
xpoints2[i].x = xpoints2[0].x;
xpoints2[i].y = xpoints2[0].y;
if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
{
SetBrush (m_brush);
XSetFillRule ((Display*) m_display, (GC) m_gc, fillStyle == wxODDEVEN_RULE ? EvenOddRule : WindingRule);
XFillPolygon ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints1, n, Complex, 0);
XSetFillRule ((Display*) m_display, (GC) m_gc, EvenOddRule); // default mode
if (m_window && m_window->GetBackingPixmap())
{
XSetFillRule ((Display*) m_display,(GC) m_gcBacking,
fillStyle == wxODDEVEN_RULE ? EvenOddRule : WindingRule);
XFillPolygon ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints2, n, Complex, 0);
XSetFillRule ((Display*) m_display,(GC) m_gcBacking, EvenOddRule); // default mode
}
}
if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
{
if (m_autoSetting)
SetPen (m_pen);
XDrawLines ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints1, n + 1, 0);
if (m_window && m_window->GetBackingPixmap())
XDrawLines ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints2, n + 1, 0);
}
delete[]xpoints1;
delete[]xpoints2;
}
void wxWindowDC::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
wxCHECK_RET( Ok(), "invalid dc" );
int xd, yd, wfd, hfd, wd, hd;
xd = XLOG2DEV(x);
yd = YLOG2DEV(y);
wfd = XLOG2DEVREL(width);
wd = wfd - WX_GC_CF;
hfd = YLOG2DEVREL(height);
hd = hfd - WX_GC_CF;
if (wfd == 0 || hfd == 0) return;
if (wd < 0) { wd = - wd; xd = xd - wd; }
if (hd < 0) { hd = - hd; yd = yd - hd; }
if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
{
SetBrush (m_brush);
XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wfd, hfd);
if (m_window && m_window->GetBackingPixmap())
XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
XLOG2DEV_2 (x), YLOG2DEV_2 (y),
wfd, hfd);
}
if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
{
if (m_autoSetting)
SetPen (m_pen);
XDrawRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd);
if (m_window && m_window->GetBackingPixmap())
XDrawRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
XLOG2DEV_2 (x), YLOG2DEV_2 (y),
wd, hd);
}
CalcBoundingBox (x, y);
CalcBoundingBox (x + width, y + height);
}
void wxWindowDC::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius )
{
wxCHECK_RET( Ok(), "invalid dc" );
// If radius is negative, it's a proportion of the smaller dimension.
if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
int xd = XLOG2DEV (x);
int yd = YLOG2DEV (y);
int rd = XLOG2DEVREL ((long) radius);
int wd = XLOG2DEVREL (width) - WX_GC_CF;
int hd = YLOG2DEVREL (height) - WX_GC_CF;
int rw_d = rd * 2;
int rh_d = rw_d;
// If radius is zero use DrawRectangle() instead to avoid
// X drawing errors with small radii
if (rd == 0)
{
DrawRectangle( x, y, width, height );
return;
}
// Draw nothing if transformed w or h is 0
if (wd == 0 || hd == 0) return;
// CMB: adjust size if outline is drawn otherwise the result is
// 1 pixel too wide and high
if (m_pen.GetStyle() != wxTRANSPARENT)
{
wd--;
hd--;
}
// CMB: ensure dd is not larger than rectangle otherwise we
// get an hour glass shape
if (rw_d > wd) rw_d = wd;
if (rw_d > hd) rw_d = hd;
rd = rw_d / 2;
// For backing pixmap
int xd2 = XLOG2DEV_2 (x);
int yd2 = YLOG2DEV_2 (y);
int rd2 = XLOG2DEVREL ((long) radius);
int wd2 = XLOG2DEVREL (width) ;
int hd2 = YLOG2DEVREL (height) ;
int rw_d2 = rd2 * 2;
int rh_d2 = rw_d2;
if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
{
SetBrush (m_brush);
XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd,
wd - rw_d, hd);
XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + rd,
wd, hd - rh_d);
// Arcs start from 3 o'clock, positive angles anticlockwise
// Top-left
XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd,
rw_d, rh_d, 90 * 64, 90 * 64);
// Top-right
XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d, yd,
// rw_d, rh_d, 0, 90 * 64);
rw_d, rh_d, 0, 91 * 64);
// Bottom-right
XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d,
yd + hd - rh_d,
// rw_d, rh_d, 270 * 64, 90 * 64);
rw_d, rh_d, 269 * 64, 92 * 64);
// Bottom-left
XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + hd - rh_d,
rw_d, rh_d, 180 * 64, 90 * 64);
if (m_window && m_window->GetBackingPixmap())
{
XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2 + rd2, yd2, wd2 - rw_d2, hd2);
XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2, yd2 + rd2, wd2, hd2 - rh_d2);
XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2, yd2, rw_d2, rh_d2, 90 * 64, 90 * 64);
XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2 + wd2 - rw_d2, yd2,
// rw_d2, rh_d2, 0, 90 * 64);
rw_d2, rh_d2, 0, 91 * 64);
XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2 + wd2 - rw_d2,
yd2 + hd2 - rh_d2,
// rw_d2, rh_d2, 270 * 64, 90 * 64);
rw_d2, rh_d2, 269 * 64, 92 * 64);
XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2, yd2 + hd2 - rh_d2,
rw_d2, rh_d2, 180 * 64, 90 * 64);
}
}
if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
{
SetPen (m_pen);
XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd,
xd + wd - rd + 1, yd);
XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd + hd,
xd + wd - rd, yd + hd);
XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + rd,
xd, yd + hd - rd);
XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd, yd + rd,
xd + wd, yd + hd - rd + 1);
XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd,
rw_d, rh_d, 90 * 64, 90 * 64);
XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d, yd,
// rw_d, rh_d, 0, 90 * 64);
rw_d, rh_d, 0, 91 * 64);
XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d,
yd + hd - rh_d,
rw_d, rh_d, 269 * 64, 92 * 64);
XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + hd - rh_d,
rw_d, rh_d, 180 * 64, 90 * 64);
if (m_window && m_window->GetBackingPixmap())
{
XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2 + rd2, yd2,
xd2 + wd2 - rd2 + 1, yd2);
XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2 + rd2, yd2 + hd2,
xd2 + wd2 - rd2, yd2 + hd2);
XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2, yd2 + rd2,
xd2, yd2 + hd2 - rd2);
XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2 + wd2, yd2 + rd2,
xd2 + wd2, yd2 + hd2 - rd2 + 1);
XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2, yd2,
rw_d2, rh_d2, 90 * 64, 90 * 64);
XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2 + wd2 - rw_d2, yd2,
// rw_d2, rh_d2, 0, 90 * 64);
rw_d2, rh_d2, 0, 91 * 64);
XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2 + wd2 - rw_d2,
yd2 + hd2 - rh_d2,
rw_d2, rh_d2, 269 * 64, 92 * 64);
XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
xd2, yd2 + hd2 - rh_d2,
rw_d2, rh_d2, 180 * 64, 90 * 64);
}
}
CalcBoundingBox (x, y);
CalcBoundingBox (x + width, y + height);
}
void wxWindowDC::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
wxCHECK_RET( Ok(), "invalid dc" );
// Check for negative width and height
if (height < 0)
{
y = y + height;
height = - height ;
}
if (width < 0)
{
x = x + width;
width = - width ;
}
static const int angle = 23040;
int xd, yd, wd, hd;
xd = XLOG2DEV(x);
yd = YLOG2DEV(y);
wd = XLOG2DEVREL(width) ;
hd = YLOG2DEVREL(height) ;
if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
{
SetBrush (m_brush);
XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, 0, angle);
if (m_window && m_window->GetBackingPixmap())
XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
XLOG2DEV_2 (x), YLOG2DEV_2 (y),
XLOG2DEVREL (width) - WX_GC_CF,
YLOG2DEVREL (height) - WX_GC_CF, 0, angle);
}
if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
{
if (m_autoSetting)
SetPen (m_pen);
XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, 0, angle);
if (m_window && m_window->GetBackingPixmap())
XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
XLOG2DEV_2 (x), YLOG2DEV_2 (y),
XLOG2DEVREL (width) - WX_GC_CF,
YLOG2DEVREL (height) - WX_GC_CF, 0, angle);
}
CalcBoundingBox (x, y);
CalcBoundingBox (x + width, y + height);
}
bool wxWindowDC::CanDrawBitmap() const
{
wxCHECK_MSG( Ok(), false, "invalid dc" );
return true;
}
// TODO: use scaled Blit e.g. as per John Price's implementation
// in Contrib/Utilities
bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest,
wxCoord width, wxCoord height,
wxDC *source, wxCoord xsrc, wxCoord ysrc,
int rop, bool useMask,
wxCoord xsrcMask, wxCoord ysrcMask )
{
wxCHECK_MSG( Ok(), false, "invalid dc" );
wxWindowDC* sourceDC = wxDynamicCast(source, wxWindowDC);
wxASSERT_MSG( sourceDC, "Blit source DC must be wxWindowDC or derived class." );
// Be sure that foreground pixels (1) of the Icon will be painted with
// foreground colour. [m_textForegroundColour] Background pixels (0)
// will be painted with backgound colour (m_textBackgroundColour)
// Using ::SetPen is horribly slow, so avoid doing it
WXPixel oldBackgroundPixel = -1;
WXPixel oldForegroundPixel = -1;
if (m_textBackgroundColour.Ok())
{
oldBackgroundPixel = m_backgroundPixel;
WXPixel pixel = m_textBackgroundColour.AllocColour(m_display);
XSetBackground ((Display*) m_display, (GC) m_gc, pixel);
if (m_window && m_window->GetBackingPixmap())
XSetBackground ((Display*) m_display,(GC) m_gcBacking,
pixel);
}
if (m_textForegroundColour.Ok())
{
oldForegroundPixel = m_currentColour.GetPixel();
if( m_textForegroundColour.GetPixel() <= -1 )
CalculatePixel( m_textForegroundColour,
m_textForegroundColour, true);
WXPixel pixel = m_textForegroundColour.GetPixel();
if (pixel > -1)
SetForegroundPixelWithLogicalFunction(pixel);
}
// Do bitmap scaling if necessary
wxBitmap *scaledBitmap = (wxBitmap*) NULL;
Pixmap sourcePixmap = (Pixmap) NULL;
double scaleX, scaleY;
GetUserScale(& scaleX, & scaleY);
bool retVal = false;
/* TODO: use the mask origin when drawing transparently */
if (xsrcMask == -1 && ysrcMask == -1)
{
xsrcMask = xsrc; ysrcMask = ysrc;
}
// Sorry, can't scale masks just yet
if (!useMask && (scaleX != 1.0 || scaleY != 1.0) && sourceDC->IsKindOf(CLASSINFO(wxMemoryDC)))
{
wxMemoryDC* memDC = (wxMemoryDC*) sourceDC;
wxBitmap& bitmap = memDC->GetBitmap();
wxASSERT_MSG( (bitmap.Ok()), "Bad source bitmap in wxWindowDC::Blit");
wxImage image = bitmap.ConvertToImage();
if (!image.Ok())
{
sourcePixmap = (Pixmap) bitmap.GetDrawable();
}
else
{
int scaledW = (int) (bitmap.GetWidth() * scaleX);
int scaledH = (int) (bitmap.GetHeight() * scaleY);
image = image.Scale(scaledW, scaledH);
scaledBitmap = new wxBitmap(image);
sourcePixmap = (Pixmap) scaledBitmap->GetDrawable();
}
}
else
sourcePixmap = (Pixmap) sourceDC->m_pixmap;
if (m_pixmap && sourcePixmap)
{
/* MATTHEW: [9] */
int orig = m_logicalFunction;
SetLogicalFunction (rop);
if (m_display != sourceDC->m_display)
{
XImage *cache = NULL;
if (m_window && m_window->GetBackingPixmap())
XCopyRemote((Display*) sourceDC->m_display, (Display*) m_display,
(Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),
(GC) m_gcBacking,
source->LogicalToDeviceX (xsrc),
source->LogicalToDeviceY (ysrc),
source->LogicalToDeviceXRel(width),
source->LogicalToDeviceYRel(height),
XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest),
True, &cache);
if ( useMask && source->IsKindOf(CLASSINFO(wxMemoryDC)) )
{
wxMemoryDC *memDC = (wxMemoryDC *)source;
wxBitmap& sel = memDC->GetBitmap();
if ( sel.Ok() && sel.GetMask() && sel.GetMask()->GetBitmap() )
{
XSetClipMask ((Display*) m_display, (GC) m_gc, (Pixmap) sel.GetMask()->GetBitmap());
XSetClipOrigin ((Display*) m_display, (GC) m_gc, XLOG2DEV (xdest), YLOG2DEV (ydest));
}
}
XCopyRemote((Display*) sourceDC->m_display, (Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
source->LogicalToDeviceX (xsrc),
source->LogicalToDeviceY (ysrc),
source->LogicalToDeviceXRel(width),
source->LogicalToDeviceYRel(height),
XLOG2DEV (xdest), YLOG2DEV (ydest),
False, &cache);
if ( useMask )
{
if ( m_clipRegion )
XSetRegion ((Display*) m_display, (GC) m_gc,
(Region) m_clipRegion);
else
XSetClipMask ((Display*) m_display, (GC) m_gc, None);
XSetClipOrigin ((Display*) m_display, (GC) m_gc, 0, 0);
}
} else
{ //XGCValues values;
//XGetGCValues((Display*)m_display, (GC)m_gc, GCForeground, &values);
if (m_window && m_window->GetBackingPixmap())
{
// +++ MARKUS (mho@comnets.rwth-aachen): error on blitting bitmaps with depth 1
if (source->IsKindOf(CLASSINFO(wxMemoryDC)) && ((wxMemoryDC*) source)->GetBitmap().GetDepth() == 1)
{
XCopyPlane ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
source->LogicalToDeviceX (xsrc),
source->LogicalToDeviceY (ysrc),
source->LogicalToDeviceXRel(width),
source->LogicalToDeviceYRel(height),
XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest), 1);
}
else
{
XCopyArea ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
source->LogicalToDeviceX (xsrc),
source->LogicalToDeviceY (ysrc),
source->LogicalToDeviceXRel(width),
source->LogicalToDeviceYRel(height),
XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest));
}
}
if ( useMask && source->IsKindOf(CLASSINFO(wxMemoryDC)) )
{
wxMemoryDC *memDC = (wxMemoryDC *)source;
wxBitmap& sel = memDC->GetBitmap();
if ( sel.Ok() && sel.GetMask() && sel.GetMask()->GetBitmap() )
{
XSetClipMask ((Display*) m_display, (GC) m_gc, (Pixmap) sel.GetMask()->GetBitmap());
XSetClipOrigin ((Display*) m_display, (GC) m_gc, XLOG2DEV (xdest), YLOG2DEV (ydest));
}
}
// Check if we're copying from a mono bitmap
if (source->IsKindOf(CLASSINFO(wxMemoryDC)) &&
((wxMemoryDC*)source)->GetBitmap().Ok() && (((wxMemoryDC*)source)->GetBitmap().GetDepth () == 1))
{
XCopyPlane ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
source->LogicalToDeviceX (xsrc),
source->LogicalToDeviceY (ysrc),
source->LogicalToDeviceXRel(width),
source->LogicalToDeviceYRel(height),
XLOG2DEV (xdest), YLOG2DEV (ydest), 1);
}
else
{
XCopyArea ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
source->LogicalToDeviceX (xsrc),
source->LogicalToDeviceY (ysrc),
source->LogicalToDeviceXRel(width),
source->LogicalToDeviceYRel(height),
XLOG2DEV (xdest), YLOG2DEV (ydest));
}
if ( useMask )
{
if ( m_clipRegion )
XSetRegion ((Display*) m_display, (GC) m_gc,
(Region) m_clipRegion);
else
XSetClipMask ((Display*) m_display, (GC) m_gc, None);
XSetClipOrigin ((Display*) m_display, (GC) m_gc, 0, 0);
}
} /* Remote/local (Display*) m_display */
CalcBoundingBox (xdest, ydest);
CalcBoundingBox (xdest + width, ydest + height);
SetLogicalFunction(orig);
retVal = true;
}
if (scaledBitmap) delete scaledBitmap;
if (oldBackgroundPixel > -1)
{
XSetBackground ((Display*) m_display, (GC) m_gc, oldBackgroundPixel);
if (m_window && m_window->GetBackingPixmap())
XSetBackground ((Display*) m_display,(GC) m_gcBacking,
oldBackgroundPixel);
}
if (oldForegroundPixel > -1)
{
XSetForeground ((Display*) m_display, (GC) m_gc, oldForegroundPixel);
if (m_window && m_window->GetBackingPixmap())
XSetForeground ((Display*) m_display,(GC) m_gcBacking,
oldForegroundPixel);
}
return retVal;
}
void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
{
wxCHECK_RET( Ok(), "invalid dc" );
// Since X draws from the baseline of the text, must add the text height
int cx = 0;
int cy = 0;
int ascent = 0;
int slen = text.length();
// Set FillStyle, otherwise X will use current stipple!
XGCValues gcV, gcBackingV;
XGetGCValues ((Display*) m_display, (GC)m_gc, GCFillStyle, &gcV);
XSetFillStyle ((Display*) m_display, (GC) m_gc, FillSolid);
if (m_window && m_window->GetBackingPixmap())
{
XGetGCValues ((Display*) m_display, (GC)m_gcBacking, GCFillStyle,
&gcBackingV );
XSetFillStyle ((Display*) m_display, (GC) m_gcBacking, FillSolid);
}
if (m_font.Ok())
wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
text, &cx, &cy, &ascent, NULL);
// First draw a rectangle representing the text background, if a text
// background is specified
if (m_textBackgroundColour.Ok () && (m_backgroundMode != wxTRANSPARENT))
{
wxColour oldPenColour = m_currentColour;
m_currentColour = m_textBackgroundColour;
bool sameColour = (oldPenColour.Ok () && m_textBackgroundColour.Ok () &&
(oldPenColour.Red () == m_textBackgroundColour.Red ()) &&
(oldPenColour.Blue () == m_textBackgroundColour.Blue ()) &&
(oldPenColour.Green () == m_textBackgroundColour.Green ()));
// This separation of the big && test required for gcc2.7/HP UX 9.02
// or pixel value can be corrupted!
sameColour = (sameColour &&
(oldPenColour.GetPixel() == m_textBackgroundColour.GetPixel()));
if (!sameColour || !GET_OPTIMIZATION)
{
WXPixel pixel = m_textBackgroundColour.AllocColour(m_display);
m_currentColour = m_textBackgroundColour;
// Set the GC to the required colour
if (pixel > -1)
{
XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
if (m_window && m_window->GetBackingPixmap())
XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
}
}
else
m_textBackgroundColour = oldPenColour ;
XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y), cx, cy);
if (m_window && m_window->GetBackingPixmap())
XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
XLOG2DEV_2 (x), YLOG2DEV_2 (y), cx, cy);
}
// Now set the text foreground and draw the text
if (m_textForegroundColour.Ok ())
{
wxColour oldPenColour = m_currentColour;
m_currentColour = m_textForegroundColour;
bool sameColour = (oldPenColour.Ok () && m_currentColour.Ok () &&
(oldPenColour.Red () == m_currentColour.Red ()) &&
(oldPenColour.Blue () == m_currentColour.Blue ()) &&
(oldPenColour.Green () == m_currentColour.Green ()) &&
(oldPenColour.GetPixel() == m_currentColour.GetPixel()));
if (!sameColour || !GET_OPTIMIZATION)
{
WXPixel pixel = CalculatePixel(m_textForegroundColour,
m_currentColour, false);
// Set the GC to the required colour
if (pixel > -1)
{
XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
if (m_window && m_window->GetBackingPixmap())
XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
}
}
else
m_textForegroundColour = oldPenColour;
}
// We need to add the ascent, not the whole height, since X draws at the
// point above the descender.
#if 0
if (use16)
XDrawString16((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent,
(XChar2b *)(char*) (const char*) text, slen);
else
#endif // 0
#if wxMOTIF_NEW_FONT_HANDLING
XFontSet fset = (XFontSet) m_font.GetFontSet (m_userScaleY * m_logicalScaleY, m_display);
XmbDrawString((Display*) m_display, (Pixmap) m_pixmap, fset, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent, text, slen);
#else
XDrawString((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent, text, slen);
#endif
if (m_window && m_window->GetBackingPixmap()) {
#if 0
if (use16)
XDrawString16((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
(XChar2b *)(char*) (const char*) text, slen);
else
#endif // 0
#if wxMOTIF_NEW_FONT_HANDLING
XmbDrawString((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), fset, (GC) m_gcBacking,
XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
wxConstCast(text.mb_str(), char), slen);
#else
XDrawString((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
wxConstCast(text.mb_str(), char), slen);
#endif
}
// restore fill style
XSetFillStyle ((Display*) m_display, (GC) m_gc, gcV.fill_style);
if (m_window && m_window->GetBackingPixmap())
XSetFillStyle ((Display*) m_display, (GC) m_gcBacking,
gcBackingV.fill_style);
wxCoord w, h;
GetTextExtent (text, &w, &h);
CalcBoundingBox (x + w, y + h);
CalcBoundingBox (x, y);
}
void wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y,
double angle )
{
if (angle == 0.0)
{
DrawText(text, x, y);
return;
}
wxCHECK_RET( Ok(), "invalid dc" );
WXPixel oldBackgroundPixel = -1;
WXPixel oldForegroundPixel = -1;
WXPixel foregroundPixel = -1;
WXPixel backgroundPixel = -1;
if (m_textBackgroundColour.Ok())
{
oldBackgroundPixel = m_backgroundPixel;
backgroundPixel = m_textBackgroundColour.AllocColour(m_display);
}
if (m_textForegroundColour.Ok())
{
oldForegroundPixel = m_currentColour.GetPixel();
if( m_textForegroundColour.GetPixel() <= -1 )
CalculatePixel( m_textForegroundColour,
m_textForegroundColour, true);
foregroundPixel = m_textForegroundColour.GetPixel();
}
// Since X draws from the baseline of the text, must add the text height
int cx = 0;
int cy = 0;
int ascent = 0;
if (m_font.Ok())
wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
text, &cx, &cy, &ascent, NULL);
wxBitmap src(cx, cy);
wxMemoryDC dc;
dc.SelectObject(src);
dc.SetFont(GetFont());
dc.SetBackground(*wxWHITE_BRUSH);
dc.SetBrush(*wxBLACK_BRUSH);
dc.Clear();
dc.DrawText(text, 0, 0);
dc.SetFont(wxNullFont);
// Calculate the size of the rotated bounding box.
double dx = cos(angle / 180.0 * M_PI);
double dy = sin(angle / 180.0 * M_PI);
double x4 = cy * dy;
double y4 = cy * dx;
double x3 = cx * dx;
double y3 = -cx * dy;
double x2 = x3 + x4;
double y2 = y3 + y4;
double x1 = x;
double y1 = y;
// Create image from the source bitmap after writing the text into it.
wxImage image = src.ConvertToImage();
int minx = roundmin(0, roundmin(x4, roundmin(x2, x3)));
int miny = roundmin(0, roundmin(y4, roundmin(y2, y3)));
int maxx = roundmax(0, roundmax(x4, roundmax(x2, x3)));
int maxy = roundmax(0, roundmax(y4, roundmax(y2, y3)));
bool lastFore = false, lastBack = false;
// This rotates counterclockwise around the top left corner.
for (int rx = minx; rx < maxx; rx++)
{
for (int ry = miny; ry < maxy; ry++)
{
// transform dest coords to source coords
int sx = (int) (rx * dx - ry * dy + 0.5);
int sy = - (int) (-ry * dx - rx * dy + 0.5);
if (sx >= 0 && sx < cx && sy >= 0 && sy < cy)
{
bool textPixel = image.GetRed(sx, sy) == 0;
if (!textPixel && m_backgroundMode != wxSOLID)
continue;
wxCoord ox = (wxCoord) (x1 + rx),
oy = (wxCoord) (y1 + ry);
// draw black pixels, ignore white ones (i.e. transparent b/g)
if (textPixel && !lastFore)
{
XSetForeground ((Display*) m_display, (GC) m_gc,
foregroundPixel);
lastFore = true;
lastBack = false;
}
else if (!textPixel && !lastBack)
{
XSetForeground ((Display*) m_display, (GC) m_gc,
backgroundPixel);
lastFore = false;
lastBack = true;
}
XDrawPoint ((Display*) m_display, (Pixmap) m_pixmap,
(GC) m_gc, XLOG2DEV (ox), YLOG2DEV (oy));
if (m_window && m_window->GetBackingPixmap())
XDrawPoint ((Display*) m_display,
(Pixmap) m_window->GetBackingPixmap(),
(GC) m_gcBacking,
XLOG2DEV_2 (ox), YLOG2DEV_2 (oy));
}
}
}
if (oldBackgroundPixel > -1)
{
XSetBackground ((Display*) m_display, (GC) m_gc, oldBackgroundPixel);
if (m_window && m_window->GetBackingPixmap())
XSetBackground ((Display*) m_display,(GC) m_gcBacking,
oldBackgroundPixel);
}
if (oldForegroundPixel > -1)
{
XSetForeground ((Display*) m_display, (GC) m_gc, oldForegroundPixel);
if (m_window && m_window->GetBackingPixmap())
XSetForeground ((Display*) m_display,(GC) m_gcBacking,
oldForegroundPixel);
}
CalcBoundingBox (minx, miny);
CalcBoundingBox (maxx, maxy);
}
bool wxWindowDC::CanGetTextExtent() const
{
return true;
}
void wxWindowDC::DoGetTextExtent( const wxString &string, wxCoord *width, wxCoord *height,
wxCoord *descent, wxCoord *externalLeading,
const wxFont *font ) const
{
wxCHECK_RET( Ok(), "invalid dc" );
const wxFont* theFont = font ? font : &m_font;
if (!theFont->Ok())
{
// TODO: this should be an error log function
wxFAIL_MSG("set a valid font before calling GetTextExtent!");
if (width) *width = -1;
if (height) *height = -1;
return;
}
wxGetTextExtent(m_display, *theFont, m_userScaleY * m_logicalScaleY,
string, width, height, NULL, descent);
if (width) *width = XDEV2LOGREL (*width);
if (height) *height = YDEV2LOGREL (*height);
if (externalLeading)
*externalLeading = 0;
}
wxCoord wxWindowDC::GetCharWidth() const
{
wxCHECK_MSG( Ok(), 0, "invalid dc" );
wxCHECK_MSG( m_font.Ok(), 0, "invalid font" );
int width;
wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
"x", &width, NULL, NULL, NULL);
return XDEV2LOGREL(width);
}
wxCoord wxWindowDC::GetCharHeight() const
{
wxCHECK_MSG( Ok(), 0, "invalid dc" );
wxCHECK_MSG( m_font.Ok(), 0, "invalid font" );
int height;
wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
"x", NULL, &height, NULL, NULL);
return XDEV2LOGREL(height);
}
void wxWindowDC::DoGetSize( int *width, int *height ) const
{
int w = 0, h = 0;
if( m_window )
{
if( m_window->GetBackingPixmap() )
{
w = m_window->GetPixmapWidth();
h = m_window->GetPixmapHeight();
}
else
m_window->GetSize( &w, &h );
}
if( width ) *width = w;
if( height ) *height = h;
}
void wxWindowDC::Clear()
{
wxCHECK_RET( Ok(), "invalid dc" );
wxRect rect( GetSize() );
Clear( rect );
}
void wxWindowDC::Clear(const wxRect& rect)
{
wxCHECK_RET( Ok(), "invalid dc" );
int x = rect.x; int y = rect.y;
int w = rect.width; int h = rect.height;
wxBrush saveBrush = m_brush;
SetBrush (m_backgroundBrush);
XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc,
x, y, w, h);
if (m_window && m_window->GetBackingPixmap())
XFillRectangle ((Display*) m_display,
(Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
x, y, w, h);
m_brush = saveBrush;
}
void wxWindowDC::SetFont( const wxFont &font )
{
wxCHECK_RET( Ok(), "invalid dc" );
m_font = font;
if (!m_font.Ok())
{
return;
}
#if !wxMOTIF_NEW_FONT_HANDLING
WXFontStructPtr pFontStruct = m_font.GetFontStruct(m_userScaleY*m_logicalScaleY, m_display);
Font fontId = ((XFontStruct*)pFontStruct)->fid;
XSetFont ((Display*) m_display, (GC) m_gc, fontId);
if (m_window && m_window->GetBackingPixmap())
XSetFont ((Display*) m_display,(GC) m_gcBacking, fontId);
#endif
}
void wxWindowDC::SetForegroundPixelWithLogicalFunction(WXPixel pixel)
{
if (m_logicalFunction == wxXOR)
{
XGCValues values;
XGetGCValues ((Display*) m_display, (GC) m_gc, GCBackground, &values);
XSetForeground ((Display*) m_display, (GC) m_gc,
pixel ^ values.background);
if (m_window && m_window->GetBackingPixmap())
XSetForeground ((Display*) m_display,(GC) m_gcBacking,
pixel ^ values.background);
}
else
{
XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
if (m_window && m_window->GetBackingPixmap())
XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
}
}
WXPixel wxWindowDC::CalculatePixel(wxColour& colour, wxColour& curCol,
bool roundToWhite) const
{
const unsigned char wp = (unsigned char)255;
WXPixel pixel = -1;
if(!m_colour) // Mono display
{
unsigned char red = colour.Red ();
unsigned char blue = colour.Blue ();
unsigned char green = colour.Green ();
// white
if((red == wp && blue == wp && green == wp) ||
// not black and roundToWhite was specified
((red != 0 || blue != 0 || green != 0) && roundToWhite))
{
curCol = *wxWHITE;
pixel = WhitePixel((Display*) m_display,
DefaultScreen((Display*) m_display));
curCol.SetPixel(pixel);
colour.SetPixel(pixel);
}
else
{
curCol = *wxBLACK;
pixel = BlackPixel((Display*) m_display,
DefaultScreen((Display*) m_display));
curCol.SetPixel(pixel);
colour.SetPixel(pixel);
}
}
else
{
curCol = colour;
pixel = colour.AllocColour((Display*) m_display);
curCol.SetPixel(pixel);
}
return pixel;
}
void wxWindowDC::SetPen( const wxPen &pen )
{
wxCHECK_RET( Ok(), "invalid dc" );
m_pen = pen;
if (!m_pen.Ok())
return;
wxBitmap oldStipple = m_currentStipple;
int oldStyle = m_currentStyle;
int oldFill = m_currentFill;
int old_pen_width = m_currentPenWidth;
int old_pen_join = m_currentPenJoin;
int old_pen_cap = m_currentPenCap;
int old_pen_nb_dash = m_currentPenDashCount;
wxX11Dash *old_pen_dash = m_currentPenDash;
wxColour oldPenColour = m_currentColour;
m_currentColour = m_pen.GetColour ();
m_currentStyle = m_pen.GetStyle ();
m_currentFill = m_pen.GetStyle (); // TODO?
m_currentPenWidth = m_pen.GetWidth ();
m_currentPenJoin = m_pen.GetJoin ();
m_currentPenCap = m_pen.GetCap ();
m_currentPenDashCount = m_pen.GetDashCount();
m_currentPenDash = (wxX11Dash*)m_pen.GetDash();
if (m_currentStyle == wxSTIPPLE)
m_currentStipple = * m_pen.GetStipple ();
bool sameStyle = (oldStyle == m_currentStyle &&
oldFill == m_currentFill &&
old_pen_join == m_currentPenJoin &&
old_pen_cap == m_currentPenCap &&
old_pen_nb_dash == m_currentPenDashCount &&
old_pen_dash == m_currentPenDash &&
old_pen_width == m_currentPenWidth);
bool sameColour = (oldPenColour.Ok () &&
(oldPenColour.Red () == m_currentColour.Red ()) &&
(oldPenColour.Blue () == m_currentColour.Blue ()) &&
(oldPenColour.Green () == m_currentColour.Green ()) &&
(oldPenColour.GetPixel() == m_currentColour.GetPixel()));
if (!sameStyle || !GET_OPTIMIZATION)
{
int scaled_width = (int) XLOG2DEVREL (m_pen.GetWidth ());
if (scaled_width < 0)
scaled_width = 0;
int style;
int join;
int cap;
static const wxX11Dash dotted[] = {2, 5};
static const wxX11Dash short_dashed[] = {4, 4};
static const wxX11Dash long_dashed[] = {4, 8};
static const wxX11Dash dotted_dashed[] = {6, 6, 2, 6};
// We express dash pattern in pen width unit, so we are
// independent of zoom factor and so on...
int req_nb_dash;
const wxX11Dash *req_dash;
switch (m_pen.GetStyle ())
{
case wxUSER_DASH:
req_nb_dash = m_currentPenDashCount;
req_dash = m_currentPenDash;
style = LineOnOffDash;
break;
case wxDOT:
req_nb_dash = 2;
req_dash = dotted;
style = LineOnOffDash;
break;
case wxSHORT_DASH:
req_nb_dash = 2;
req_dash = short_dashed;
style = LineOnOffDash;
break;
case wxLONG_DASH:
req_nb_dash = 2;
req_dash = long_dashed;
style = LineOnOffDash;
break;
case wxDOT_DASH:
req_nb_dash = 4;
req_dash = dotted_dashed;
style = LineOnOffDash;
break;
case wxSTIPPLE:
case wxSOLID:
case wxTRANSPARENT:
default:
style = LineSolid;
req_dash = (wxX11Dash*)NULL;
req_nb_dash = 0;
}
if (req_dash && req_nb_dash)
{
wxX11Dash *real_req_dash = new wxX11Dash[req_nb_dash];
if (real_req_dash)
{
int factor = scaled_width == 0 ? 1 : scaled_width;
for (int i = 0; i < req_nb_dash; i++)
real_req_dash[i] = (wxX11Dash)(req_dash[i] * factor);
XSetDashes ((Display*) m_display, (GC) m_gc, 0, real_req_dash, req_nb_dash);
if (m_window && m_window->GetBackingPixmap())
XSetDashes ((Display*) m_display,(GC) m_gcBacking, 0, real_req_dash, req_nb_dash);
delete[]real_req_dash;
}
else
{
// No Memory. We use non-scaled dash pattern...
XSetDashes ((Display*) m_display, (GC) m_gc, 0, req_dash, req_nb_dash);
if (m_window && m_window->GetBackingPixmap())
XSetDashes ((Display*) m_display,(GC) m_gcBacking, 0, req_dash, req_nb_dash);
}
}
switch (m_pen.GetCap ())
{
case wxCAP_PROJECTING:
cap = CapProjecting;
break;
case wxCAP_BUTT:
cap = CapButt;
break;
case wxCAP_ROUND:
default:
cap = (scaled_width <= 1) ? CapNotLast : CapRound;
break;
}
switch (m_pen.GetJoin ())
{
case wxJOIN_BEVEL:
join = JoinBevel;
break;
case wxJOIN_MITER:
join = JoinMiter;
break;
case wxJOIN_ROUND:
default:
join = JoinRound;
break;
}
XSetLineAttributes ((Display*) m_display, (GC) m_gc, scaled_width, style, cap, join);
if (m_window && m_window->GetBackingPixmap())
XSetLineAttributes ((Display*) m_display,(GC) m_gcBacking, scaled_width, style, cap, join);
}
if (IS_HATCH(m_currentFill) && ((m_currentFill != oldFill) || !GET_OPTIMIZATION))
{
Pixmap myStipple;
oldStipple = wxNullBitmap; // For later reset!!
switch (m_currentFill)
{
case wxBDIAGONAL_HATCH:
if (bdiag == (Pixmap) 0)
bdiag = XCreateBitmapFromData ((Display*) m_display,
RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
bdiag_bits, bdiag_width, bdiag_height);
myStipple = bdiag;
break;
case wxFDIAGONAL_HATCH:
if (fdiag == (Pixmap) 0)
fdiag = XCreateBitmapFromData ((Display*) m_display,
RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
fdiag_bits, fdiag_width, fdiag_height);
myStipple = fdiag;
break;
case wxCROSS_HATCH:
if (cross == (Pixmap) 0)
cross = XCreateBitmapFromData ((Display*) m_display,
RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
cross_bits, cross_width, cross_height);
myStipple = cross;
break;
case wxHORIZONTAL_HATCH:
if (horiz == (Pixmap) 0)
horiz = XCreateBitmapFromData ((Display*) m_display,
RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
horiz_bits, horiz_width, horiz_height);
myStipple = horiz;
break;
case wxVERTICAL_HATCH:
if (verti == (Pixmap) 0)
verti = XCreateBitmapFromData ((Display*) m_display,
RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
verti_bits, verti_width, verti_height);
myStipple = verti;
break;
case wxCROSSDIAG_HATCH:
default:
if (cdiag == (Pixmap) 0)
cdiag = XCreateBitmapFromData ((Display*) m_display,
RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
cdiag_bits, cdiag_width, cdiag_height);
myStipple = cdiag;
break;
}
XSetStipple ((Display*) m_display, (GC) m_gc, myStipple);
if (m_window && m_window->GetBackingPixmap())
XSetStipple ((Display*) m_display,(GC) m_gcBacking, myStipple);
}
else if (m_currentStyle == wxSTIPPLE && m_currentStipple.Ok()
&& ((!m_currentStipple.IsSameAs(oldStipple)) || !GET_OPTIMIZATION))
{
XSetStipple ((Display*) m_display, (GC) m_gc, (Pixmap) m_currentStipple.GetDrawable());
if (m_window && m_window->GetBackingPixmap())
XSetStipple ((Display*) m_display,(GC) m_gcBacking, (Pixmap) m_currentStipple.GetDrawable());
}
if ((m_currentFill != oldFill) || !GET_OPTIMIZATION)
{
int fill_style;
if (m_currentFill == wxSTIPPLE)
fill_style = FillStippled;
else if (IS_HATCH (m_currentFill))
fill_style = FillStippled;
else
fill_style = FillSolid;
XSetFillStyle ((Display*) m_display, (GC) m_gc, fill_style);
if (m_window && m_window->GetBackingPixmap())
XSetFillStyle ((Display*) m_display,(GC) m_gcBacking, fill_style);
}
// must test m_logicalFunction, because it involves background!
if (!sameColour || !GET_OPTIMIZATION
|| ((m_logicalFunction == wxXOR) || (m_autoSetting & 0x2)))
{
WXPixel pixel = -1;
if (m_pen.GetStyle () == wxTRANSPARENT)
pixel = m_backgroundPixel;
else
{
pixel = CalculatePixel(m_pen.GetColour(), m_currentColour, false);
}
// Finally, set the GC to the required colour
if (pixel > -1)
SetForegroundPixelWithLogicalFunction(pixel);
}
else
m_pen.GetColour().SetPixel(oldPenColour.GetPixel());
m_autoSetting = 0;
}
void wxWindowDC::SetBrush( const wxBrush &brush )
{
wxCHECK_RET( Ok(), "invalid dc" );
m_brush = brush;
if (!m_brush.Ok() || m_brush.GetStyle () == wxTRANSPARENT)
return;
int oldFill = m_currentFill;
wxBitmap oldStipple = m_currentStipple;
m_autoSetting |= 0x1;
m_currentFill = m_brush.GetStyle ();
if (m_currentFill == wxSTIPPLE)
m_currentStipple = * m_brush.GetStipple ();
wxColour oldBrushColour(m_currentColour);
m_currentColour = m_brush.GetColour ();
bool sameColour = (oldBrushColour.Ok () &&
(oldBrushColour.Red () == m_currentColour.Red ()) &&
(oldBrushColour.Blue () == m_currentColour.Blue ()) &&
(oldBrushColour.Green () == m_currentColour.Green ()) &&
(oldBrushColour.GetPixel() == m_currentColour.GetPixel()));
int stippleDepth = -1;
if ((oldFill != m_brush.GetStyle ()) || !GET_OPTIMIZATION)
{
switch (brush.GetStyle ())
{
case wxTRANSPARENT:
break;
case wxSTIPPLE:
stippleDepth = m_currentStipple.GetDepth();
// fall through!
case wxBDIAGONAL_HATCH:
case wxCROSSDIAG_HATCH:
case wxFDIAGONAL_HATCH:
case wxCROSS_HATCH:
case wxHORIZONTAL_HATCH:
case wxVERTICAL_HATCH:
{
if (stippleDepth == -1) stippleDepth = 1;
// Chris Breeze 23/07/97: use background mode to
// determine whether fill style should be solid or
// transparent
int style = stippleDepth == 1 ?
(m_backgroundMode == wxSOLID ?
FillOpaqueStippled : FillStippled) :
FillTiled;
XSetFillStyle ((Display*) m_display, (GC) m_gc, style);
if (m_window && m_window->GetBackingPixmap())
XSetFillStyle ((Display*) m_display,(GC) m_gcBacking, style);
}
break;
case wxSOLID:
default:
XSetFillStyle ((Display*) m_display, (GC) m_gc, FillSolid);
if (m_window && m_window->GetBackingPixmap())
XSetFillStyle ((Display*) m_display,(GC) m_gcBacking,
FillSolid);
}
}
if (IS_HATCH(m_currentFill) && ((m_currentFill != oldFill) || !GET_OPTIMIZATION))
{
Pixmap myStipple;
switch (m_currentFill)
{
case wxBDIAGONAL_HATCH:
if (bdiag == (Pixmap) 0)
bdiag = XCreateBitmapFromData ((Display*) m_display,
RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
bdiag_bits, bdiag_width, bdiag_height);
myStipple = bdiag;
break;
case wxFDIAGONAL_HATCH:
if (fdiag == (Pixmap) 0)
fdiag = XCreateBitmapFromData ((Display*) m_display,
RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
fdiag_bits, fdiag_width, fdiag_height);
myStipple = fdiag;
break;
case wxCROSS_HATCH:
if (cross == (Pixmap) 0)
cross = XCreateBitmapFromData ((Display*) m_display,
RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
cross_bits, cross_width, cross_height);
myStipple = cross;
break;
case wxHORIZONTAL_HATCH:
if (horiz == (Pixmap) 0)
horiz = XCreateBitmapFromData ((Display*) m_display,
RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
horiz_bits, horiz_width, horiz_height);
myStipple = horiz;
break;
case wxVERTICAL_HATCH:
if (verti == (Pixmap) 0)
verti = XCreateBitmapFromData ((Display*) m_display,
RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
verti_bits, verti_width, verti_height);
myStipple = verti;
break;
case wxCROSSDIAG_HATCH:
default:
if (cdiag == (Pixmap) 0)
cdiag = XCreateBitmapFromData ((Display*) m_display,
RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
cdiag_bits, cdiag_width, cdiag_height);
myStipple = cdiag;
break;
}
XSetStipple ((Display*) m_display, (GC) m_gc, myStipple);
if (m_window && m_window->GetBackingPixmap())
XSetStipple ((Display*) m_display,(GC) m_gcBacking, myStipple);
}
// X can forget the stipple value when resizing a window (apparently)
// so always set the stipple.
else if (m_currentFill != wxSOLID && m_currentFill != wxTRANSPARENT &&
m_currentStipple.Ok()) // && m_currentStipple != oldStipple)
{
if (m_currentStipple.GetDepth() == 1)
{
XSetStipple ((Display*) m_display, (GC) m_gc,
(Pixmap) m_currentStipple.GetDrawable());
if (m_window && m_window->GetBackingPixmap())
XSetStipple ((Display*) m_display,(GC) m_gcBacking,
(Pixmap) m_currentStipple.GetDrawable());
}
else
{
XSetTile ((Display*) m_display, (GC) m_gc,
(Pixmap) m_currentStipple.GetDrawable());
if (m_window && m_window->GetBackingPixmap())
XSetTile ((Display*) m_display,(GC) m_gcBacking,
(Pixmap) m_currentStipple.GetDrawable());
}
}
// must test m_logicalFunction, because it involves background!
if (!sameColour || !GET_OPTIMIZATION || m_logicalFunction == wxXOR)
{
WXPixel pixel = CalculatePixel(m_brush.GetColour(), m_currentColour, true);
if (pixel > -1)
SetForegroundPixelWithLogicalFunction(pixel);
}
else
m_brush.GetColour().SetPixel(oldBrushColour.GetPixel());
}
void wxWindowDC::SetBackground( const wxBrush &brush )
{
wxCHECK_RET( Ok(), "invalid dc" );
m_backgroundBrush = brush;
if (!m_backgroundBrush.Ok())
return;
m_backgroundPixel = m_backgroundBrush.GetColour().AllocColour(m_display);
// Necessary for ::DrawIcon, which use fg/bg pixel or the GC.
// And Blit,... (Any fct that use XCopyPlane, in fact.)
XSetBackground ((Display*) m_display, (GC) m_gc, m_backgroundPixel);
if (m_window && m_window->GetBackingPixmap())
XSetBackground ((Display*) m_display,(GC) m_gcBacking,
m_backgroundPixel);
}
void wxWindowDC::SetLogicalFunction( int function )
{
wxCHECK_RET( Ok(), "invalid dc" );
int x_function;
/* MATTHEW: [9] */
if (m_logicalFunction == function)
return;
switch (function)
{
case wxCLEAR:
x_function = GXclear;
break;
case wxXOR:
x_function = GXxor;
break;
case wxINVERT:
x_function = GXinvert;
break;
case wxOR_REVERSE:
x_function = GXorReverse;
break;
case wxAND_REVERSE:
x_function = GXandReverse;
break;
case wxAND:
x_function = GXand;
break;
case wxOR:
x_function = GXor;
break;
case wxAND_INVERT:
x_function = GXandInverted;
break;
case wxNO_OP:
x_function = GXnoop;
break;
case wxNOR:
x_function = GXnor;
break;
case wxEQUIV:
x_function = GXequiv;
break;
case wxSRC_INVERT:
x_function = GXcopyInverted;
break;
case wxOR_INVERT:
x_function = GXorInverted;
break;
case wxNAND:
x_function = GXnand;
break;
case wxSET:
x_function = GXset;
break;
case wxCOPY:
default:
x_function = GXcopy;
break;
}
XSetFunction((Display*) m_display, (GC) m_gc, x_function);
if (m_window && m_window->GetBackingPixmap())
XSetFunction((Display*) m_display, (GC) m_gcBacking, x_function);
if ((m_logicalFunction == wxXOR) != (function == wxXOR))
/* MATTHEW: [9] Need to redo pen simply */
m_autoSetting |= 0x2;
m_logicalFunction = function;
}
void wxWindowDC::SetTextForeground( const wxColour &col )
{
wxCHECK_RET( Ok(), "invalid dc" );
m_textForegroundColour = col;
}
void wxWindowDC::SetTextBackground( const wxColour &col )
{
wxCHECK_RET( Ok(), "invalid dc" );
m_textBackgroundColour = col;
}
void wxWindowDC::SetBackgroundMode( int mode )
{
m_backgroundMode = mode;
}
void wxWindowDC::SetPalette( const wxPalette& palette )
{
if (m_window)
{
if (palette.Ok())
/* Use GetXColormap */
XSetWindowColormap ((Display*) m_display, (Window) m_window->GetXWindow(),
(Colormap) palette.GetXColormap());
else
/* Use wxGetMainColormap */
XSetWindowColormap ((Display*) m_display, (Window) m_window->GetXWindow(),
(Colormap) wxTheApp->GetMainColormap(m_display));
}
}
static void wxCopyRegion( WXRegion src, WXRegion& dst )
{
if( !dst )
dst = XCreateRegion();
XUnionRegion( (Region)src, (Region)src, (Region)dst );
}
// Helper function; userRegion is the region set by calling SetClippingRegion
void wxWindowDC::SetDCClipping( WXRegion userRegion )
{
bool hasUpdateRegion = m_window && m_window->GetUpdateRegion().Ok();
// this means that we should start the clip region from scratch,
// or from the update region, if any
if( !userRegion )
{
if( m_clipRegion )
XDestroyRegion( (Region)m_clipRegion );
m_clipRegion = (WXRegion)NULL;
if( hasUpdateRegion )
wxCopyRegion( m_window->GetUpdateRegion().GetX11Region(),
m_clipRegion );
}
// intersect the user region, if any, with the
// exisiting clip region
else // if( userRegion )
{
if( !m_clipRegion )
wxCopyRegion( userRegion, m_clipRegion );
else
XIntersectRegion( (Region)m_clipRegion,
(Region)userRegion, (Region)m_clipRegion );
}
if( m_clipRegion )
XSetRegion( (Display*)m_display, (GC)m_gc, (Region)m_clipRegion );
else
XSetClipMask( (Display*)m_display, (GC)m_gc, None );
}
void wxWindowDC::DoSetClippingRegion( wxCoord x, wxCoord y,
wxCoord width, wxCoord height )
{
wxDC::DoSetClippingRegion( x, y, width, height );
wxRegion temp(XLOG2DEV(x), YLOG2DEV(y),
XLOG2DEVREL(width), YLOG2DEVREL(height));
SetDCClipping(temp.GetX11Region());
// Needs to work differently for Pixmap: without this,
// there's a nasty (Display*) m_display bug. 8/12/94
if (m_window && m_window->GetBackingPixmap())
{
XRectangle rects[1];
rects[0].x = (short)XLOG2DEV_2(x);
rects[0].y = (short)YLOG2DEV_2(y);
rects[0].width = (unsigned short)XLOG2DEVREL(width);
rects[0].height = (unsigned short)YLOG2DEVREL(height);
XSetClipRectangles((Display*) m_display, (GC) m_gcBacking,
0, 0, rects, 1, Unsorted);
}
}
void wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion& region )
{
SetDCClipping(region.GetX11Region());
// Needs to work differently for Pixmap: without this,
// there's a nasty (Display*) m_display bug. 8/12/94
if (m_window && m_window->GetBackingPixmap())
{
wxRect box = region.GetBox();
XRectangle rects[1];
rects[0].x = (short)XLOG2DEV_2(box.x);
rects[0].y = (short)YLOG2DEV_2(box.y);
rects[0].width = (unsigned short)XLOG2DEVREL(box.width);
rects[0].height = (unsigned short)YLOG2DEVREL(box.height);
XSetClipRectangles((Display*) m_display, (GC) m_gcBacking,
0, 0, rects, 1, Unsorted);
}
}
void wxWindowDC::DestroyClippingRegion()
{
wxDC::DestroyClippingRegion();
SetDCClipping(NULL);
if (m_window && m_window->GetBackingPixmap())
XSetClipMask ((Display*) m_display, (GC) m_gcBacking, None);
}
// Resolution in pixels per logical inch
wxSize wxWindowDC::GetPPI() const
{
// TODO
return wxSize(100, 100);
}
int wxWindowDC::GetDepth() const
{
// TODO
return 24;
}
// ----------------------------------------------------------------------------
// wxPaintDC
// ----------------------------------------------------------------------------
wxPaintDC::wxPaintDC(wxWindow* win) : wxWindowDC(win)
{
// Set the clipping region.to the update region
SetDCClipping((WXRegion)NULL);
}
wxPaintDC::~wxPaintDC()
{
if (m_window)
m_window->ClearUpdateRegion();
SetDCClipping((WXRegion)NULL);
}
// ----------------------------------------------------------------------------
// private functions
// ----------------------------------------------------------------------------
/*
Used when copying between drawables on different (Display*) m_displays. Not
very fast, but better than giving up.
*/
static void XCopyRemote(Display *src_display, Display *dest_display,
Drawable src, Drawable dest,
GC destgc,
int srcx, int srcy,
unsigned int w, unsigned int h,
int destx, int desty,
bool more, XImage **cache)
{
XImage *image, *destimage;
Colormap destcm, srccm;
static const int CACHE_SIZE = 256;
unsigned int i, j;
Pixel cachesrc[CACHE_SIZE], cachedest[CACHE_SIZE];
int k, cache_pos, all_cache;
if (!cache || !*cache)
image = XGetImage(src_display, src, srcx, srcy, w, h, AllPlanes, ZPixmap);
else
image = *cache;
destimage = XGetImage(dest_display, dest, destx, desty, w, h, AllPlanes, ZPixmap);
srccm = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) src_display);
destcm = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dest_display);
cache_pos = 0;
all_cache = False;
for (i = 0; i < w; i++)
for (j = 0; j < h; j++) {
Pixel pixel;
XColor xcol;
pixel = XGetPixel(image, i, j);
for (k = cache_pos; k--; )
if (cachesrc[k] == pixel) {
pixel = cachedest[k];
goto install;
}
if (all_cache)
for (k = CACHE_SIZE; k-- > cache_pos; )
if (cachesrc[k] == pixel) {
pixel = cachedest[k];
goto install;
}
cachesrc[cache_pos] = xcol.pixel = pixel;
XQueryColor(src_display, srccm, &xcol);
if (!XAllocColor(dest_display, destcm, &xcol))
xcol.pixel = 0;
cachedest[cache_pos] = pixel = xcol.pixel;
if (++cache_pos >= CACHE_SIZE) {
cache_pos = 0;
all_cache = true;
}
install:
XPutPixel(destimage, i, j, pixel);
}
XPutImage(dest_display, dest, destgc, destimage, 0, 0, destx, desty, w, h);
XDestroyImage(destimage);
if (more && cache)
*cache = image;
else
XDestroyImage(image);
}
#if 0
/* Helper function for 16-bit fonts */
static int str16len(const char *s)
{
int count = 0;
while (s[0] && s[1]) {
count++;
s += 2;
}
return count;
}
#endif // 0