From 334f2d807766dd399c510f89e67d2ebb075fcee9 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Tue, 23 Aug 2005 14:50:02 +0000 Subject: GLw demo doesn't belong here --- src/glw/boilerplate.c | 451 -------------------------------------------------- 1 file changed, 451 deletions(-) delete mode 100644 src/glw/boilerplate.c (limited to 'src/glw') diff --git a/src/glw/boilerplate.c b/src/glw/boilerplate.c deleted file mode 100644 index c53a3fa735..0000000000 --- a/src/glw/boilerplate.c +++ /dev/null @@ -1,451 +0,0 @@ -/* - - BOILERPLATE - - To get started with mixed model programming with Motif and OpenGL, this - boilerplate `application' might help get you started. - - This program honors two environment variables: - - SETVISUAL Makes the application use the indicated visual, - instead of the one chosen by glxChooseVisual. - - SAMEVISUAL Make the application use the same visual for the - GUI as for the 3D GL Widget. - - The basic idea is to minimize colormap `flash' on systems with only one - hardware colormap, especially when focus shifts between several - of the application's windows, e.g. the about box. - - If you have suggestions for improvements, please mail to: - - - Jeroen van der Zijp - - - Feel free to turn this into a useful program!! - -*/ - - -/* - - This code is hereby placed under GNU GENERAL PUBLIC LICENSE. - Copyright (C) 1996 Jeroen van der Zijp - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - - -/* Include the kitchen sink */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* Now some good stuff */ -#include -#include -#include -#include - - -/* Stuff */ -Display *display; -Visual *gui_visual; -Colormap gui_colormap; -Colormap gl_colormap; -XVisualInfo *gl_visualinfo; -XtAppContext app_context; -Widget toplevel; -Widget mainwindow; -Widget menubar; -Widget mainform; -Widget mainframe; -Widget glwidget; -Widget button; -Widget separator; -GLXContext glx_context; - -#ifndef __cplusplus -#define c_class class -#endif - -/* Requested attributes; fix as you see fit */ -static int glxConfig[]={ - GLX_RGBA, - GLX_DOUBLEBUFFER, - GLX_DEPTH_SIZE, 16, - GLX_RED_SIZE, 1, - GLX_GREEN_SIZE, 1, - GLX_BLUE_SIZE, 1, - None - }; - - -/* Forwards */ -static void exposeCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs); -static void initCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs); -static void resizeCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs); -static void inputCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs); -static void byeCB(Widget w,XtPointer client_data,XtPointer call_data); -static void aboutCB(Widget w,XtPointer client_data,XtPointer call_data); -static char* showvisualclass(int cls); - - - -/* Sample application */ -int main(int argc, char *argv[]){ - char *thevisual; - XVisualInfo vi; - int nvisinfos,visid,n; - Arg args[30]; - Widget pane,cascade,but; - - /* - ** Initialize toolkit - ** We do *not* use XtAppInitialize as we want to figure visual and - ** colormap BEFORE we create the top level shell!!! - */ - XtToolkitInitialize(); - - /* Make application context */ - app_context=XtCreateApplicationContext(); - - /* Try open display */ - display=XtOpenDisplay(app_context,NULL,"boilerPlate","BoilerPlate",NULL,0,&argc,argv); - - /* Report failure */ - if(!display){ - fprintf(stderr,"Unable to open the specified display.\n"); - fprintf(stderr,"Set your `DISPLAY' environment variable properly or\n"); - fprintf(stderr,"use the `xhost' command to authorize access to the display.\n"); - exit(1); - } - - /* Check for extension; for Mesa, this is always cool */ - if(!glXQueryExtension(display,NULL,NULL)){ - fprintf(stderr,"The specified display does not support the OpenGL extension\n"); - exit(1); - } - - /* Init with default visual and colormap */ - gui_visual=DefaultVisual(display,0); - gui_colormap=DefaultColormap(display,0); - gl_colormap=DefaultColormap(display,0); - - /* User insists on a specific visual */ - if((thevisual=getenv("SETVISUAL"))!=NULL){ - if(sscanf(thevisual,"%x",&visid)==1){ - vi.visualid=visid; - gl_visualinfo=XGetVisualInfo(display,VisualIDMask,&vi,&nvisinfos); - } - else{ - fprintf(stderr,"Please set the `SETVISUAL' variable in hexadecimal\n"); - fprintf(stderr,"Use one of the Visual ID's reported by `xdpyinfo'\n"); - exit(1); - } - } - - /* Find visual the regular way */ - else{ - gl_visualinfo=glXChooseVisual(display,DefaultScreen(display),glxConfig); - } - - /* Make sure we have a visual */ - if(!gl_visualinfo){ - fprintf(stderr,"Unable to obtain visual for graphics\n"); - exit(1); - } - - /* Show what visual is being used */ - fprintf(stderr,"Using the following visual:\n"); - fprintf(stderr," visualid: %lx\n",gl_visualinfo->visualid); - fprintf(stderr," depth: %d\n",gl_visualinfo->depth); - fprintf(stderr," screen: %d\n",gl_visualinfo->screen); - fprintf(stderr," bits/rgb: %d\n",gl_visualinfo->bits_per_rgb); - fprintf(stderr," class: %s\n",showvisualclass(gl_visualinfo->c_class)); - - /* - ** If not using default visual, we need a colormap for this visual. - ** Yes, the GL widget can allocate one itself, but we want to make - ** sure the GUI and the 3D have the same one (if hardware does not - ** allow more than one simultaneously). - ** This prevents nasty flashing when the window with the 3D widget - ** looses the focus. - */ - if(gl_visualinfo->visual!=DefaultVisual(display,0)){ - fprintf(stderr,"Making another colormap\n"); - gl_colormap=XCreateColormap(display, - RootWindow(display,0), - gl_visualinfo->visual, - AllocNone); - if(!gl_colormap){ - fprintf(stderr,"Unable to create private colormap\n"); - exit(1); - } - } - - /* - ** Use common visual for GUI and GL? - ** Maybe you can invoke some hardware interrogation function and - ** see if more than one hardware map is supported. For the purpose - ** of this demo, we'll use an environment variable instead. - */ - if(getenv("SAMEVISUAL")!=NULL){ - gui_visual=gl_visualinfo->visual; - gui_colormap=gl_colormap; - } - - fprintf(stderr,"GUI uses visual: %lx\n",XVisualIDFromVisual(gui_visual)); - - /* Create application shell, finally */ - n=0; - XtSetArg(args[n],XmNvisual,gui_visual); n++; /* Plug in that visual */ - XtSetArg(args[n],XmNcolormap,gui_colormap); n++; /* And that colormap */ - toplevel=XtAppCreateShell("boilerPlate","BoilerPlate", - applicationShellWidgetClass,display,args,n); - - - /* Main window */ - n=0; - mainwindow=XmCreateMainWindow(toplevel,"window",args,n); - XtManageChild(mainwindow); - - /* Make a menu */ - n=0; - XtSetArg(args[n],XmNmarginWidth,0); n++; - XtSetArg(args[n],XmNmarginHeight,0); n++; - menubar=XmCreateMenuBar(mainwindow,"menubar",args,2); - XtManageChild(menubar); - - n=0; - pane=XmCreatePulldownMenu(menubar,"pane",args,n); - n=0; - but=XmCreatePushButton(pane,"Open",args,n); - XtManageChild(but); - but=XmCreatePushButton(pane,"Save",args,n); - XtManageChild(but); - but=XmCreatePushButton(pane,"Save As",args,n); - XtManageChild(but); - but=XmCreatePushButton(pane,"Quit",args,n); - XtAddCallback(but,XmNactivateCallback,byeCB,(XtPointer)NULL); - XtManageChild(but); - XtSetArg(args[0],XmNsubMenuId,pane); - cascade=XmCreateCascadeButton(menubar,"File",args,1); - XtManageChild(cascade); - - n=0; - pane=XmCreatePulldownMenu(menubar,"pane",args,n); - n=0; - but=XmCreatePushButton(pane,"About",args,n); - XtAddCallback(but,XmNactivateCallback,aboutCB,(XtPointer)NULL); - XtManageChild(but); - XtSetArg(args[0],XmNsubMenuId,pane); - cascade=XmCreateCascadeButton(menubar,"Help",args,1); - XtManageChild(cascade); - XtVaSetValues(menubar,XmNmenuHelpWidget,cascade,NULL); - - /* Main window form */ - n=0; - XtSetArg(args[n],XmNmarginWidth,5); n++; - XtSetArg(args[n],XmNmarginHeight,5); n++; - mainform=XmCreateForm(mainwindow,"mainForm",args,n); - XtManageChild(mainform); - - /* Some nice button */ - n=0; - XtSetArg(args[n],XmNbottomAttachment,XmATTACH_FORM); n++; - XtSetArg(args[n],XmNrightAttachment,XmATTACH_FORM); n++; - button=XmCreatePushButton(mainform,"Bye",args,n); - XtAddCallback(button,XmNactivateCallback,byeCB,(XtPointer)NULL); - XtManageChild(button); - - n=0; - XtSetArg(args[n],XmNleftAttachment,XmATTACH_FORM); n++; - XtSetArg(args[n],XmNrightAttachment,XmATTACH_FORM); n++; - XtSetArg(args[n],XmNbottomAttachment,XmATTACH_WIDGET); n++; - XtSetArg(args[n],XmNbottomWidget,button); n++; - XtSetArg(args[n],XmNshadowType,XmSHADOW_ETCHED_IN); n++; - separator=XmCreateSeparator(mainform,"separator",args,n); - XtManageChild(separator); - - /* Main window frame */ - n = 0; - XtSetArg(args[n],XmNleftAttachment,XmATTACH_FORM); n++; - XtSetArg(args[n],XmNrightAttachment,XmATTACH_FORM); n++; - XtSetArg(args[n],XmNtopAttachment,XmATTACH_FORM); n++; - XtSetArg(args[n],XmNbottomAttachment,XmATTACH_WIDGET); n++; - XtSetArg(args[n],XmNbottomWidget,separator); n++; - XtSetArg(args[n],XmNshadowType,XmSHADOW_IN); n++; - mainframe = XmCreateFrame(mainform,"mainFrame",args,n); - XtManageChild(mainframe); - - /* GL drawing area */ - n = 0; - XtSetArg(args[n],XmNcolormap,gl_colormap); n++; - XtSetArg(args[n],GLwNvisualInfo,gl_visualinfo); n++; - XtSetArg(args[n],GLwNinstallColormap,True); n++; - XtSetArg(args[n],XmNtraversalOn,True); n++; - XtSetArg(args[n],XmNwidth,400); n++; - XtSetArg(args[n],XmNheight,300); n++; - glwidget = GLwCreateMDrawingArea(mainframe,"glWidget",args,n); - XtAddCallback(glwidget,GLwNexposeCallback,(XtCallbackProc)exposeCB,(XtPointer)NULL); - XtAddCallback(glwidget,GLwNresizeCallback,(XtCallbackProc)resizeCB,(XtPointer)NULL); - XtAddCallback(glwidget,GLwNginitCallback,(XtCallbackProc)initCB,(XtPointer)NULL); - XtAddCallback(glwidget,GLwNinputCallback,(XtCallbackProc)inputCB,(XtPointer)NULL); - XtManageChild(glwidget); - - /* Set into main window */ - XmMainWindowSetAreas(mainwindow,menubar,NULL,NULL,NULL,mainform); - XtRealizeWidget(toplevel); - - /* Loop until were done */ - XtAppMainLoop(app_context); - return 0; - } - - -/* Show visual class */ -static char* showvisualclass(int cls){ - if(cls==TrueColor) return "TrueColor"; - if(cls==DirectColor) return "DirectColor"; - if(cls==PseudoColor) return "PseudoColor"; - if(cls==StaticColor) return "StaticColor"; - if(cls==GrayScale) return "GrayScale"; - if(cls==StaticGray) return "StaticGray"; - return "Unknown"; - } - - -static void exposeCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs){ - GLwDrawingAreaMakeCurrent(glwidget,glx_context); - - glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT); - glMatrixMode(GL_PROJECTION); - - glLoadIdentity(); - glOrtho(-1.0,1.0,-1.0,1.0,0.0,1.0); - - glMatrixMode(GL_MODELVIEW); - - glLoadIdentity(); - - glColor3f(1.0,0.0,0.0); - glBegin(GL_LINE_STRIP); - glVertex3f(-1.0,-1.0,0.0); - glVertex3f( 1.0, 1.0,0.0); - glEnd(); - glXSwapBuffers(display,XtWindow(glwidget)); - } - - -/* Initialize widget */ -static void initCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs){ - - /* First, create context. We prefer direct rendering */ - glx_context=glXCreateContext(display,gl_visualinfo,0,TRUE); - if(!glx_context){ - fprintf(stderr,"Unable to create gl context\n"); - exit(1); - } - - /* Make it current */ - GLwDrawingAreaMakeCurrent(glwidget,glx_context); - - /* Set a viewport */ - glViewport(0,0,cbs->width,cbs->height); - - /* You might want to do a lot more here ... */ - glEnable(GL_DEPTH_TEST); - glDepthFunc(GL_LEQUAL); - glClearColor(1.0,1.0,1.0,1.0); - glClearDepth(1.0); - - - } - - -/* Widget changed size, so adjust txform */ -static void resizeCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs){ - GLwDrawingAreaMakeCurrent(glwidget,glx_context); - glViewport(0,0,cbs->width,cbs->height); - - /* blablabla */ - } - - -/* Boilerplate event handling */ -static void inputCB(Widget w,XtPointer client_data,GLwDrawingAreaCallbackStruct *cbs){ - switch(cbs->event->type){ - case ButtonPress: - switch(cbs->event->xbutton.button){ - case Button1: fprintf(stderr,"Pressed 1\n"); break; - case Button2: fprintf(stderr,"Pressed 2\n"); break; - case Button3: fprintf(stderr,"Pressed 3\n"); break; - } - break; - case ButtonRelease: - switch(cbs->event->xbutton.button){ - case Button1: fprintf(stderr,"Released 1\n"); break; - case Button2: fprintf(stderr,"Released 2\n"); break; - case Button3: fprintf(stderr,"Released 3\n"); break; - } - break; - case MotionNotify: - fprintf(stderr,"Moved mouse to (%d %d)\n", - cbs->event->xbutton.x, - cbs->event->xbutton.y); - break; - } - } - - -/* Hasta la vista, baby */ -static void byeCB(Widget w,XtPointer client_data,XtPointer call_data){ - exit(0); - } - - -/* Pop informative panel */ -static void aboutCB(Widget w,XtPointer client_data,XtPointer call_data){ - Arg args[10]; - XmString str; - Widget box; - str=XmStringCreateLtoR("Boilerplate Mixed Model Programming Example\n\n (C) 1996 Jeroen van der Zijp \n\n jvz@cyberia.cfdrc.com",XmSTRING_DEFAULT_CHARSET); - XtSetArg(args[0],XmNnoResize,True); - XtSetArg(args[1],XmNautoUnmanage,True); - XtSetArg(args[2],XmNmessageString,str); - XtSetArg(args[3],XmNdefaultPosition,False); - box=XmCreateInformationDialog(toplevel,"About Boilerplate",args,4); - XtManageChild(box); - XtUnmanageChild(XmMessageBoxGetChild(box,XmDIALOG_HELP_BUTTON)); - XtUnmanageChild(XmMessageBoxGetChild(box,XmDIALOG_CANCEL_BUTTON)); - XmStringFree(str); - } -- cgit v1.2.3