test/testwm.c
changeset 0 74212992fb08
child 87 3ef4bc90c388
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/testwm.c	Thu Apr 26 16:45:43 2001 +0000
@@ -0,0 +1,350 @@
+
+/* Test out the window manager interaction functions */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "SDL.h"
+
+/* Is the cursor visible? */
+static int visible = 1;
+
+SDL_Surface *LoadIconSurface(char *file, Uint8 **maskp)
+{
+	SDL_Surface *icon;
+	Uint8       *pixels;
+	Uint8       *mask;
+	int          mlen, i;
+
+	*maskp = NULL;
+
+	/* Load the icon surface */
+	icon = SDL_LoadBMP(file);
+	if ( icon == NULL ) {
+		fprintf(stderr, "Couldn't load %s: %s\n", file, SDL_GetError());
+		return(NULL);
+	}
+
+	/* Check width and height */
+	if ( (icon->w%8) != 0 ) {
+		fprintf(stderr, "Icon width must be a multiple of 8!\n");
+		SDL_FreeSurface(icon);
+		return(NULL);
+	}
+	if ( icon->format->palette == NULL ) {
+		fprintf(stderr, "Icon must have a palette!\n");
+		SDL_FreeSurface(icon);
+		return(NULL);
+	}
+
+	/* Set the colorkey */
+	SDL_SetColorKey(icon, SDL_SRCCOLORKEY, *((Uint8 *)icon->pixels));
+
+	/* Create the mask */
+	pixels = (Uint8 *)icon->pixels;
+	printf("Transparent pixel: (%d,%d,%d)\n",
+				icon->format->palette->colors[*pixels].r,
+				icon->format->palette->colors[*pixels].g,
+				icon->format->palette->colors[*pixels].b);
+	mlen = icon->w*icon->h;
+	mask = (Uint8 *)malloc(mlen/8);
+	if ( mask == NULL ) {
+		fprintf(stderr, "Out of memory!\n");
+		SDL_FreeSurface(icon);
+		return(NULL);
+	}
+	memset(mask, 0, mlen/8);
+	for ( i=0; i<mlen; ) {
+		if ( pixels[i] != *pixels )
+			mask[i/8] |= 0x01;
+		++i;
+		if ( (i%8) != 0 )
+			mask[i/8] <<= 1;
+	}
+	*maskp = mask;
+	return(icon);
+}
+
+void HotKey_ToggleFullScreen(void)
+{
+	SDL_Surface *screen;
+
+	screen = SDL_GetVideoSurface();
+	if ( SDL_WM_ToggleFullScreen(screen) ) {
+		printf("Toggled fullscreen mode - now %s\n",
+		    (screen->flags&SDL_FULLSCREEN) ? "fullscreen" : "windowed");
+	} else {
+		printf("Unable to toggle fullscreen mode\n");
+	}
+}
+
+void HotKey_ToggleGrab(void)
+{
+	SDL_GrabMode mode;
+
+	printf("Ctrl-G: toggling input grab!\n");
+	mode = SDL_WM_GrabInput(SDL_GRAB_QUERY);
+	if ( mode == SDL_GRAB_ON ) {
+		printf("Grab was on\n");
+	} else {
+		printf("Grab was off\n");
+	}
+	mode = SDL_WM_GrabInput(!mode);
+	if ( mode == SDL_GRAB_ON ) {
+		printf("Grab is now on\n");
+	} else {
+		printf("Grab is now off\n");
+	}
+}
+
+void HotKey_Iconify(void)
+{
+	printf("Ctrl-Z: iconifying window!\n");
+	SDL_WM_IconifyWindow();
+}
+
+void HotKey_Quit(void)
+{
+	SDL_Event event;
+
+	printf("Posting internal quit request\n");
+	event.type = SDL_USEREVENT;
+	SDL_PushEvent(&event);
+}
+
+int FilterEvents(const SDL_Event *event)
+{
+	static int reallyquit = 0;
+
+	switch (event->type) {
+
+		case SDL_ACTIVEEVENT:
+			/* See what happened */
+			printf("App %s ",
+				event->active.gain ? "gained" : "lost");
+			if ( event->active.state & SDL_APPACTIVE )
+				printf("active ");
+			if ( event->active.state & SDL_APPMOUSEFOCUS )
+				printf("mouse ");
+			if ( event->active.state & SDL_APPINPUTFOCUS )
+				printf("input ");
+			printf("focus\n");
+
+			/* See if we are iconified or restored */
+			if ( event->active.state & SDL_APPACTIVE ) {
+				printf("App has been %s\n",
+					event->active.gain ?
+						 "restored" : "iconified");
+			}
+			return(0);
+
+		/* We want to toggle visibility on buttonpress */
+		case SDL_MOUSEBUTTONDOWN:
+		case SDL_MOUSEBUTTONUP:
+			if ( event->button.state == SDL_PRESSED ) {
+				visible = !visible;
+				SDL_ShowCursor(visible);
+			}
+			printf("Mouse button %d has been %s\n",
+				event->button.button,
+				(event->button.state == SDL_PRESSED) ?
+						"pressed" : "released");
+			return(0);
+
+		/* Show relative mouse motion */
+		case SDL_MOUSEMOTION:
+#if 0
+			printf("Mouse relative motion: {%d,%d}\n",
+				event->motion.xrel, event->motion.yrel);
+#endif
+			return(0);
+
+		case SDL_KEYDOWN:
+			if ( event->key.keysym.sym == SDLK_ESCAPE ) {
+				HotKey_Quit();
+			}
+			if ( (event->key.keysym.sym == SDLK_g) &&
+			     (event->key.keysym.mod & KMOD_CTRL) ) {
+				HotKey_ToggleGrab();
+			}
+			if ( (event->key.keysym.sym == SDLK_z) &&
+			     (event->key.keysym.mod & KMOD_CTRL) ) {
+				HotKey_Iconify();
+			}
+			if ( (event->key.keysym.sym == SDLK_RETURN) &&
+			     (event->key.keysym.mod & KMOD_ALT) ) {
+				HotKey_ToggleFullScreen();
+			}
+			return(0);
+
+		/* Pass the video resize event through .. */
+		case SDL_VIDEORESIZE:
+			return(1);
+
+		/* This is important!  Queue it if we want to quit. */
+		case SDL_QUIT:
+			if ( ! reallyquit ) {
+				reallyquit = 1;
+				printf("Quit requested\n");
+				return(0);
+			}
+			printf("Quit demanded\n");
+			return(1);
+
+		/* This will never happen because events queued directly
+		   to the event queue are not filtered.
+		 */
+		case SDL_USEREVENT:
+			return(1);
+
+		/* Drop all other events */
+		default:
+			return(0);
+	}
+}
+
+static Uint8  video_bpp;
+static Uint32 video_flags;
+
+int SetVideoMode(int w, int h)
+{
+	SDL_Surface *screen;
+	int i;
+	Uint8 *buffer;
+	SDL_Color palette[256];
+
+	screen = SDL_SetVideoMode(w, h, video_bpp, video_flags);
+	if (  screen == NULL ) {
+		fprintf(stderr, "Couldn't set %dx%dx%d video mode: %s\n",
+					w, h, video_bpp, SDL_GetError());
+		return(-1);
+	}
+	printf("Running in %s mode\n", screen->flags & SDL_FULLSCREEN ?
+						"fullscreen" : "windowed");
+
+	/* Set the surface pixels and refresh! */
+	for ( i=0; i<256; ++i ) {
+		palette[i].r = 255-i;
+		palette[i].g = 255-i;
+		palette[i].b = 255-i;
+	}
+	SDL_SetColors(screen, palette, 0, 256);
+	if ( SDL_LockSurface(screen) < 0 ) {
+		fprintf(stderr, "Couldn't lock display surface: %s\n",
+							SDL_GetError());
+		return(-1);
+	}
+	buffer = (Uint8 *)screen->pixels;
+	for ( i=0; i<screen->h; ++i ) {
+		memset(buffer,(i*255)/screen->h,
+				screen->w*screen->format->BytesPerPixel);
+		buffer += screen->pitch;
+	}
+	SDL_UnlockSurface(screen);
+	SDL_UpdateRect(screen, 0, 0, 0, 0);
+
+	return(0);
+}
+
+int main(int argc, char *argv[])
+{
+	SDL_Event event;
+	char *title;
+	SDL_Surface *icon;
+	Uint8 *icon_mask;
+	int parsed;
+
+	if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
+		fprintf(stderr,
+			"Couldn't initialize SDL: %s\n", SDL_GetError());
+		exit(1);
+	}
+	atexit(SDL_Quit);
+
+	/* Check command line arguments */
+	video_bpp = 8;
+	video_flags = SDL_SWSURFACE;
+	parsed = 1;
+	while ( parsed ) {
+		if ( (argc >= 2) && (strcmp(argv[1], "-fullscreen") == 0) ) {
+			video_flags |= SDL_FULLSCREEN;
+			argc -= 1;
+			argv += 1;
+		} else
+		if ( (argc >= 2) && (strcmp(argv[1], "-resize") == 0) ) {
+			video_flags |= SDL_RESIZABLE;
+			argc -= 1;
+			argv += 1;
+		} else
+		if ( (argc >= 2) && (strcmp(argv[1], "-noframe") == 0) ) {
+			video_flags |= SDL_NOFRAME;
+			argc -= 1;
+			argv += 1;
+		} else
+		if ( (argc >= 3) && (strcmp(argv[1], "-bpp") == 0) ) {
+			video_bpp = atoi(argv[2]);
+			argc -= 2;
+			argv += 2;
+		} else {
+			parsed = 0;
+		}
+	}
+
+	/* Set the icon -- this must be done before the first mode set */
+	icon = LoadIconSurface("icon.bmp", &icon_mask);
+	if ( icon != NULL ) {
+		SDL_WM_SetIcon(icon, icon_mask);
+	}
+	if ( icon_mask != NULL )
+		free(icon_mask);
+
+	/* Set the title bar */
+	if ( argv[1] == NULL )
+		title = "Testing  1.. 2.. 3...";
+	else
+		title = argv[1];
+	SDL_WM_SetCaption(title, "testwm");
+
+	/* See if it's really set */
+	SDL_WM_GetCaption(&title, NULL);
+	if ( title )
+		printf("Title was set to: %s\n", title);
+	else
+		printf("No window title was set!\n");
+
+	/* Initialize the display */
+	if ( SetVideoMode(640, 480) < 0 ) {
+		return(1);
+	}
+
+	/* Set an event filter that discards everything but QUIT */
+	SDL_SetEventFilter(FilterEvents);
+
+	/* Ignore key up events, they don't even get filtered */
+	SDL_EventState(SDL_KEYUP, SDL_IGNORE);
+
+	/* Loop, waiting for QUIT */
+	while ( SDL_WaitEvent(&event) ) {
+		switch (event.type) {
+			case SDL_VIDEORESIZE:
+				printf("Got a resize event: %dx%d\n",
+				       event.resize.w, event.resize.h);
+				SetVideoMode(event.resize.w, event.resize.h);
+				break;
+			case SDL_USEREVENT:
+				printf("Handling internal quit request\n");
+				/* Fall through to the quit handler */
+			case SDL_QUIT:
+				printf("Bye bye..\n");
+				return(0);
+			default:
+				/* This should never happen */
+				printf("Warning: Event %d wasn't filtered\n",
+								event.type);
+				break;
+		}
+	}
+	printf("SDL_WaitEvent() error: %s\n", SDL_GetError());
+	return(255);
+}