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Code Issues Releases Activity

linux fatal error popup

master
insofaras 2016-08-31 20:05:34 +01:00
parent 6f836eab45
commit 38c46c8d5d
1 changed files with 181 additions and 9 deletions
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190
linux_4ed.cpp
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@ -2138,6 +2138,160 @@ LinuxX11ConnectionWatch(Display* dpy, XPointer cdata, int fd, Bool opening, XPoi
epoll_ctl(linuxvars.epoll, op, fd, &e);
}
// NOTE(inso): this was a quick hack, might need some cleanup.
internal void
LinuxFatalErrorMsg(const char* msg)
{
fprintf(stderr, "Fatal Error: %s\n", msg);
Display *dpy = XOpenDisplay(0);
if(!dpy){
exit(1);
}
int win_w = 450;
int win_h = 150 + (strlen(msg) / 40) * 24;
Window w = XCreateSimpleWindow(dpy, DefaultRootWindow(dpy), 0, 0, win_w, win_h, 0, 0, 0x2EA44F);
XStoreName(dpy, w, "4coder Error");
XSizeHints* sh = XAllocSizeHints();
sh->flags = PMinSize;
sh->min_width = win_w;
sh->min_height = win_h;
XSetWMNormalHints(dpy, w, sh);
Atom type = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
XChangeProperty(dpy, w,
XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False),
XA_ATOM,
32,
PropModeReplace,
(unsigned char*) &type,
1);
Atom WM_DELETE_WINDOW = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
XSetWMProtocols(dpy, w, &WM_DELETE_WINDOW, 1);
XMapRaised(dpy, w);
XSync(dpy, False);
XSelectInput(dpy, w, ExposureMask | StructureNotifyMask | PointerMotionMask | ButtonPressMask | ButtonReleaseMask);
XFontStruct* font = XLoadQueryFont(dpy, "-*-fixed-*-*-*-*-*-140-*-*-*-*-iso8859-1");
if(!font){
exit(1);
}
XGCValues gcv;
gcv.foreground = WhitePixel(dpy, 0);
gcv.background = 0x2EA44F;
gcv.line_width = 2;
gcv.font = font->fid;
GC gc = XCreateGC(dpy, w, GCForeground | GCBackground | GCFont | GCLineWidth, &gcv);
gcv.foreground = BlackPixel(dpy, 0);
GC gc2 = XCreateGC(dpy, w, GCForeground | GCBackground | GCFont | GCLineWidth, &gcv);
int button_trigger = 0;
int button_hi = 0;
XEvent ev;
while(1){
XNextEvent(dpy, &ev);
int redraw = 0;
if(ev.type == Expose) redraw = 1;
if(ev.type == ConfigureNotify){
redraw = 1;
win_w = ev.xconfigure.width;
win_h = ev.xconfigure.height;
}
XRectangle button_rect = { win_w/2-40, win_h*0.8f, 80, 20 };
if(ev.type == MotionNotify){
int new_hi = (ev.xmotion.x > button_rect.x &&
ev.xmotion.y > button_rect.y &&
ev.xmotion.x < button_rect.x + button_rect.width &&
ev.xmotion.y < button_rect.y + button_rect.height);
if(new_hi != button_hi){
button_hi = new_hi;
redraw = 1;
}
}
if(ev.type == ButtonPress && ev.xbutton.button == Button1){
if(button_hi) button_trigger = 1;
redraw = 1;
}
if(ev.type == ButtonRelease && ev.xbutton.button == Button1){
if(button_trigger){
if(button_hi){
exit(1);
} else {
button_trigger = 0;
}
}
redraw = 1;
}
if(ev.type == ClientMessage && ev.xclient.window == w && (Atom)ev.xclient.data.l[0] == WM_DELETE_WINDOW){
exit(1);
}
if(redraw){
XClearWindow(dpy, w);
const char* line_start = msg;
const char* last_space = NULL;
int y = 30;
{
const char title[] = "4coder - Fatal Error";
int width = XTextWidth(font, title, sizeof(title)-1);
int x = (win_w/2) - (width/2);
XDrawString(dpy, w, gc2, x+2, y+2, title, sizeof(title)-1);
XDrawString(dpy, w, gc, x, y, title, sizeof(title)-1);
}
y += 36;
int width = XTextWidth(font, "x", 1) * 40;
int x = (win_w/2) - (width/2);
for(const char* p = line_start; *p; ++p){
if(*p == ' ') last_space = p;
if(p - line_start > 40){
if(!last_space) last_space = p;
XDrawString(dpy, w, gc2, x+2, y+2, line_start, last_space - line_start);
XDrawString(dpy, w, gc, x, y, line_start, last_space - line_start);
line_start = *last_space == ' ' ? last_space + 1 : p;
last_space = NULL;
y += 18;
}
}
XDrawString(dpy, w, gc2, x+2, y+2, line_start, strlen(line_start));
XDrawString(dpy, w, gc, x, y, line_start, strlen(line_start));
XDrawRectangles(dpy, w, gc, &button_rect, 1);
if(button_hi || button_trigger){
XDrawRectangle(dpy, w, gc2, button_rect.x+1, button_rect.y+1, button_rect.width-2, button_rect.height-2);
}
XDrawString(dpy, w, gc2, button_rect.x + 22, button_rect.y + 17, "Drat!", 5);
XDrawString(dpy, w, gc, button_rect.x + 20, button_rect.y + 15, "Drat!", 5);
}
}
}
internal int
LinuxGetXSettingsDPI(Display* dpy, int screen)
{
@ -2273,13 +2427,14 @@ LinuxX11WindowInit(int argc, char** argv, int* WinWidth, int* WinHeight)
}
if (!GLXCanUseFBConfig(linuxvars.XDisplay)){
fprintf(stderr, "Your GLX version is too old.\n");
LinuxFatalErrorMsg("Your XServer's GLX version is too old. GLX 1.3+ is required.");
return false;
}
glx_config_result Config = ChooseGLXConfig(linuxvars.XDisplay, DefaultScreen(linuxvars.XDisplay));
if (!Config.Found){
fprintf(stderr, "Could not create GLX FBConfig.\n");
LinuxFatalErrorMsg("Could not get a matching GLX FBConfig. Check your OpenGL drivers are installed correctly.");
return false;
}
XSetWindowAttributes swa = {};
@ -2299,7 +2454,7 @@ LinuxX11WindowInit(int argc, char** argv, int* WinWidth, int* WinHeight)
CWBackingStore|CWBitGravity|CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &swa);
if (!linuxvars.XWindow){
fprintf(stderr, "Error creating window.\n");
LinuxFatalErrorMsg("XCreateWindow failed. Make sure your display is set up correctly.");
return false;
}
@ -2782,7 +2937,7 @@ main(int argc, char **argv)
String base_dir = make_fixed_width_string(base_dir_mem);
if (!LinuxLoadAppCode(&base_dir)){
fprintf(stderr, "Could not load 4ed_app.so! It should be in the same dir as 4ed.\n");
LinuxFatalErrorMsg("Could not load '4ed_app.so'. This file should be in the same directory as the main '4ed' executable.");
return 99;
}
@ -2799,6 +2954,11 @@ main(int argc, char **argv)
linuxvars.target.max = Mbytes(1);
linuxvars.target.push_buffer = (char*)system_get_memory(linuxvars.target.max);
if(memory_vars.vars_memory == NULL || memory_vars.target_memory == NULL || memory_vars.user_memory == NULL || linuxvars.target.push_buffer == NULL){
LinuxFatalErrorMsg("Could not allocate sufficient memory. Please make sure you have atleast 512Mb of RAM free. (This requirement will be relaxed in the future).");
exit(1);
}
init_shared_vars();
//
@ -2807,7 +2967,9 @@ main(int argc, char **argv)
char* cwd = get_current_dir_name();
if(!cwd){
perror("get_current_dir_name");
char buf[1024];
snprintf(buf, sizeof(buf), "Call to get_current_dir_name failed: %s", strerror(errno));
LinuxFatalErrorMsg(buf);
return 1;
}
@ -2833,7 +2995,10 @@ main(int argc, char **argv)
// TODO(allen): crt free version
fprintf(stdout, "%.*s", output_size, (char*)memory_vars.target_memory);
}
if (output_size != 0) return 0;
if (output_size != 0){
LinuxFatalErrorMsg("Error reading command-line arguments.");
return 1;
}
sysshared_filter_real_files(files, file_count);
@ -2867,7 +3032,7 @@ main(int argc, char **argv)
if (linuxvars.custom_api.get_alpha_4coder_version == 0 ||
linuxvars.custom_api.get_alpha_4coder_version(MAJOR, MINOR, PATCH) == 0){
fprintf(stderr, "*** Failed to use 4coder_custom.so: version mismatch ***\n");
LinuxFatalErrorMsg("Failed to load '4coder_custom.so': Version mismatch. Try rebuilding it with 'buildsuper.sh'.");
exit(1);
}
else{
@ -2877,7 +3042,9 @@ main(int argc, char **argv)
dlsym(linuxvars.custom, "view_routine");
if (linuxvars.custom_api.get_bindings == 0){
fprintf(stderr, "*** Failed to use 4coder_custom.so: get_bindings not exported ***\n");
LinuxFatalErrorMsg("Failed to load '4coder_custom.so': "
"It does not export the required 'get_bindings' function. "
"Try rebuilding it with 'buildsuper.sh'.");
exit(1);
}
else{
@ -2885,8 +3052,12 @@ main(int argc, char **argv)
}
}
} else {
char buf[4096];
const char* error = dlerror();
fprintf(stderr, "*** Failed to load 4coder_custom.so: %s\n", error ? error : "dlopen failed.");
snprintf(buf, sizeof(buf), "Error loading custom: %s. "
"Make sure this file is in the same directory as the main '4ed' executable.",
error ? error : "'4coder_custom.so' missing");
LinuxFatalErrorMsg(buf);
exit(1);
}
#else
@ -2957,6 +3128,7 @@ main(int argc, char **argv)
linuxvars.XDisplay = XOpenDisplay(0);
if(!linuxvars.XDisplay){
// NOTE(inso): probably not worth trying the popup in this case...
fprintf(stderr, "Can't open display!\n");
return 1;
}