Warning, /include/Geant4/toolx/X11/pixwin is written in an unsupported language. File is not indexed.
0001 // Copyright (C) 2010, Guy Barrand. All rights reserved.
0002 // See the file tools.license for terms.
0003
0004 #ifndef toolx_X11_pixwin
0005 #define toolx_X11_pixwin
0006
0007 #include "colors"
0008 #include <tools/sg/zb_viewer>
0009
0010 #include <X11/Xlib.h>
0011 #include <X11/Xutil.h> //XPutPixel
0012
0013 namespace toolx {
0014 namespace X11 {
0015
0016 class pixwin {
0017 public:
0018 pixwin(std::ostream& a_out,unsigned int a_monitor,Display* a_display)
0019 :m_out(a_out)
0020 ,m_monitor(a_monitor)
0021 ,m_display(a_display)
0022 ,m_GC(0)
0023 ,m_image(0)
0024 {
0025 if(!m_display) return;
0026 m_GC = ::XCreateGC(m_display,XRootWindow(m_display,m_monitor),0,0);
0027 }
0028 virtual ~pixwin() {
0029 free_pixels();
0030 m_colors.clear();
0031 if(m_GC) ::XFreeGC(m_display,m_GC);
0032 free_XImage();
0033 }
0034 protected:
0035 pixwin(const pixwin& a_from)
0036 :m_out(a_from.m_out)
0037 ,m_monitor(0)
0038 ,m_display(0)
0039 ,m_GC(0)
0040 ,m_image(0)
0041 {}
0042 pixwin& operator=(const pixwin&){
0043 m_monitor = 0;
0044 m_display = 0;
0045 m_GC = 0;
0046 m_image = 0;
0047 return *this;
0048 }
0049 public:
0050 void put_buffer(Window a_win,unsigned int a_ww,unsigned int a_wh,const unsigned char* a_rgbas) {
0051 if(!m_display) return;
0052 if(!m_GC) return;
0053 if(!m_image) alloc_XImage(a_ww,a_wh);
0054 if(!m_image) return;
0055 const unsigned int* pos = (const unsigned int*)a_rgbas;
0056 unsigned int row,col;
0057 toolx::X11::Pixel pixel;
0058 for(row=0;row<a_wh;row++) {
0059 for(col=0;col<a_ww;col++) {
0060 if(!get_pixel(m_display,m_monitor,m_pixels,m_colors,*pos,pixel)) {}
0061 pos++;
0062 XPutPixel(m_image,col,row,pixel);
0063 }}
0064 ::XPutImage(m_display,a_win,m_GC,m_image,0,0,0,0,a_ww,a_wh);
0065 }
0066 void set_size(unsigned int a_ww,unsigned int a_wh) {
0067 free_XImage();
0068 alloc_XImage(a_ww,a_wh);
0069 }
0070 protected:
0071 void alloc_XImage(unsigned int a_ww,unsigned int a_wh) {
0072 if(m_image) return; //done.
0073 if(!m_display) return;
0074 Screen* screen = ::XScreenOfDisplay(m_display,m_monitor);
0075 m_image = ::XCreateImage(m_display,::XDefaultVisualOfScreen(screen),::XDefaultDepthOfScreen(screen),ZPixmap,0,NULL,a_ww,a_wh,8,0);
0076 if(!m_image) {
0077 m_out << "toolx::X11::pixwin::alloc_XImage : can't create an XImage." << std::endl;
0078 return;
0079 }
0080 //warning : a priori, a_ww*3 != m_image->bytes_per_line.
0081 m_image->data = new char[a_wh*m_image->bytes_per_line];
0082 if(!m_image->data) {
0083 m_out << "toolx::X11::pixwin::alloc_XImage : can't alloc buffer." << std::endl;
0084 ::XFree((char*)m_image);
0085 m_image = 0;
0086 return;
0087 }
0088 }
0089 void free_XImage() {
0090 if(!m_image) return;
0091 delete [] m_image->data;
0092 ::XFree((char*)m_image);
0093 m_image = 0;
0094 }
0095 void free_pixels() {
0096 if(!m_display) return;
0097 Screen* screen = ::XScreenOfDisplay(m_display,m_monitor);
0098 tools_vforit(toolx::X11::Pixel,m_pixels,it) {
0099 ::XFreeColors(m_display,XDefaultColormapOfScreen(screen),&(*it),1,0);
0100 }
0101 m_pixels.clear();
0102 }
0103 protected:
0104 std::ostream& m_out;
0105 unsigned int m_monitor;
0106 Display* m_display;
0107 GC m_GC;
0108 std::vector<toolx::X11::Pixel> m_pixels;
0109 colors_t m_colors;
0110 XImage* m_image;
0111 };
0112
0113 }}
0114
0115
0116 #endif
0117
