1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
// File Xw_PixMap.cxx
// Created 14 October 1999
// Author VKH
// Updated GG 06/03/00 Xw_PixMap MUST creates a Pixmap and no more an Image !!!
// GG IMP100701 Add the "depth" field and method
// to the pixmap object.
//-Copyright MatraDatavision 1999
//-Version
#define xTRACE 1
//
#include <errno.h>
#include <stdio.h>
#include <Xw_PixMap.ixx>
#include <Xw_Window.hxx>
#include <Xw_Extension.h>
#include <TCollection_AsciiString.hxx>
#include <Image_PixMap.hxx>
XW_STATUS Xw_save_xwd_image ( void*, void*, char* );
XW_STATUS Xw_save_bmp_image ( void*, void*, char* );
XW_STATUS Xw_save_gif_image ( void*, void*, char* );
Standard_Integer Xw_PixMap::PreferedDepth(
const Handle(Aspect_Window)& aWindow,
const Standard_Integer aDepth) const {
Handle(Xw_Window) hwindow = Handle(Xw_Window)::DownCast(aWindow);
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*) hwindow->ExtendedWindow();
if( aDepth <= 0 ) return _DEPTH;
// Gets the nearest depth from possible screen depths
Standard_Integer i,j;
Screen *scr = DefaultScreenOfDisplay(_DISPLAY);
for( i=j=0 ; i<scr->ndepths ; i++ ) {
if( Abs(aDepth - scr->depths[i].depth) <
Abs(aDepth - scr->depths[j].depth) ) {
j = i;
}
}
return scr->depths[j].depth;
}
//////////////////////////////////////////////////////////////////////////////////////////
Xw_PixMap::Xw_PixMap ( const Handle(Aspect_Window)& aWindow,
const Standard_Integer aWidth,
const Standard_Integer anHeight,
const Standard_Integer aDepth ) :
Aspect_PixMap(aWidth, anHeight, PreferedDepth(aWindow, aDepth))
{
myWindow = Handle(Xw_Window)::DownCast(aWindow);
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*) myWindow->ExtendedWindow();
Xw_print_error();
if( !Xw_get_trace() ) Xw_set_synchronize(_DISPLAY,True);
myPixmap = XCreatePixmap( _DISPLAY, _WINDOW, myWidth, myHeight, myDepth);
if( !Xw_get_trace() ) Xw_set_synchronize(_DISPLAY,False);
if ( !myPixmap || Xw_print_error() ) {
char errstring[256];
sprintf(errstring," *** Xw_PixMap : Cann't allocates pixmap of size %d x %d, request failed with errno : '%s'",myWidth, myHeight,strerror(errno));
Aspect_PixmapDefinitionError::Raise ( errstring );
}
}
///////////////////////////////
void
Xw_PixMap::Destroy ()
{
if( myPixmap ) {
#ifdef TRACE
printf(" $$$ Xw_PixMap::Destroy() %x\n",myPixmap);
#endif
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*) myWindow->ExtendedWindow();
XFreePixmap(_DISPLAY,myPixmap);
}
}
////////////////////////////////////////////////////////////
Standard_Boolean Xw_PixMap::Dump (const Standard_CString theFilename,
const Standard_Real theGammaValue) const
{
// the attributes
XWindowAttributes winAttr;
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*) myWindow->ExtendedWindow();
XGetWindowAttributes (_DISPLAY, _WINDOW, &winAttr);
// find the image
XImage* pximage = XGetImage (_DISPLAY, myPixmap,
0, 0, myWidth, myHeight,
AllPlanes, ZPixmap);
if (pximage == NULL)
{
return Standard_False;
}
if (winAttr.visual->c_class == TrueColor)
{
Standard_Byte* aDataPtr = (Standard_Byte* )pximage->data;
Handle(Image_PixMap) anImagePixMap = new Image_PixMap (aDataPtr,
pximage->width, pximage->height,
pximage->bytes_per_line,
pximage->bits_per_pixel,
Standard_True);
// destroy the image
XDestroyImage (pximage);
// save the image
return anImagePixMap->Dump (theFilename, theGammaValue);
}
else
{
std::cerr << "Visual Type not supported!";
// destroy the image
XDestroyImage (pximage);
return Standard_False;
}
}
////////////////////////////////////////////////////////////
Aspect_Handle Xw_PixMap::PixmapID() const
{
return myPixmap;
}
Quantity_Color Xw_PixMap::PixelColor (const Standard_Integer theX,
const Standard_Integer theY) const
{
// the attributes
XWindowAttributes winAttr;
XW_EXT_WINDOW *pwindow = (XW_EXT_WINDOW*) myWindow->ExtendedWindow();
XGetWindowAttributes (_DISPLAY, _WINDOW, &winAttr);
// find the image
XImage* pximage = XGetImage (_DISPLAY, myPixmap,
0, 0, myWidth, myHeight,
AllPlanes, ZPixmap);
if (pximage == NULL)
{
return Quantity_Color (0.0, 0.0, 0.0, Quantity_TOC_RGB);
}
XColor aColor;
aColor.pixel = XGetPixel (pximage, theX, theY);
XDestroyImage (pximage);
XQueryColor (_DISPLAY, myWindow->XColorMap(), &aColor);
return Quantity_Color (Quantity_Parameter (aColor.red) / 65535.0,
Quantity_Parameter (aColor.green) / 65535.0,
Quantity_Parameter (aColor.blue) / 65535.0,
Quantity_TOC_RGB);
}
|
