466 lines
12 KiB
C
466 lines
12 KiB
C
|
/*
|
||
|
|
Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
|
||
|
|
|
||
|
|
This software is provided 'as-is', without any express or implied
|
||
|
|
warranty. In no event will the authors be held liable for any damages
|
||
|
|
arising from the use of this software.
|
||
|
|
|
||
|
|
Permission is granted to anyone to use this software for any purpose,
|
||
|
|
including commercial applications, and to alter it and redistribute it
|
||
|
|
freely.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* 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;
|
||
|
|
|
||
|
|
static Uint8 video_bpp;
|
||
|
|
static Uint32 video_flags;
|
||
|
|
|
||
|
|
/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
|
||
|
|
static void
|
||
|
|
quit(int rc)
|
||
|
|
{
|
||
|
|
SDL_Quit();
|
||
|
|
exit(rc);
|
||
|
|
}
|
||
|
|
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
|
||
|
|
SDL_Surface *
|
||
|
|
LoadIconSurface(char *file, Uint8 ** maskp)
|
||
|
|
{
|
||
|
|
SDL_Surface *icon;
|
||
|
|
Uint8 *pixels;
|
||
|
|
Uint8 *mask;
|
||
|
|
int mlen, i, j;
|
||
|
|
|
||
|
|
*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 + 7) / 8;
|
||
|
|
mask = (Uint8 *) malloc(mlen);
|
||
|
|
if (mask == NULL) {
|
||
|
|
fprintf(stderr, "Out of memory!\n");
|
||
|
|
SDL_FreeSurface(icon);
|
||
|
|
return (NULL);
|
||
|
|
}
|
||
|
|
memset(mask, 0, mlen);
|
||
|
|
for (i = 0; i < icon->h; i++)
|
||
|
|
for (j = 0; j < icon->w; j++) {
|
||
|
|
int pindex = i * icon->pitch + j;
|
||
|
|
int mindex = i * icon->w + j;
|
||
|
|
if (pixels[pindex] != *pixels)
|
||
|
|
mask[mindex >> 3] |= 1 << (7 - (mindex & 7));
|
||
|
|
}
|
||
|
|
*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");
|
||
|
|
video_flags ^= SDL_FULLSCREEN;
|
||
|
|
SetVideoMode(screen->w, screen->h);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
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 ? SDL_GRAB_OFF : SDL_GRAB_ON);
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static void
|
||
|
|
print_modifiers(void)
|
||
|
|
{
|
||
|
|
int mod;
|
||
|
|
printf(" modifiers:");
|
||
|
|
mod = SDL_GetModState();
|
||
|
|
if(!mod) {
|
||
|
|
printf(" (none)");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if(mod & KMOD_LSHIFT)
|
||
|
|
printf(" LSHIFT");
|
||
|
|
if(mod & KMOD_RSHIFT)
|
||
|
|
printf(" RSHIFT");
|
||
|
|
if(mod & KMOD_LCTRL)
|
||
|
|
printf(" LCTRL");
|
||
|
|
if(mod & KMOD_RCTRL)
|
||
|
|
printf(" RCTRL");
|
||
|
|
if(mod & KMOD_LALT)
|
||
|
|
printf(" LALT");
|
||
|
|
if(mod & KMOD_RALT)
|
||
|
|
printf(" RALT");
|
||
|
|
if(mod & KMOD_LMETA)
|
||
|
|
printf(" LMETA");
|
||
|
|
if(mod & KMOD_RMETA)
|
||
|
|
printf(" RMETA");
|
||
|
|
if(mod & KMOD_NUM)
|
||
|
|
printf(" NUM");
|
||
|
|
if(mod & KMOD_CAPS)
|
||
|
|
printf(" CAPS");
|
||
|
|
if(mod & KMOD_MODE)
|
||
|
|
printf(" MODE");
|
||
|
|
}
|
||
|
|
|
||
|
|
static void PrintKey(const SDL_Keysym *sym, int pressed)
|
||
|
|
{
|
||
|
|
/* Print the keycode, name and state */
|
||
|
|
if ( sym->sym ) {
|
||
|
|
printf("Key %s: %d-%s ", pressed ? "pressed" : "released",
|
||
|
|
sym->sym, SDL_GetKeyName(sym->sym));
|
||
|
|
} else {
|
||
|
|
printf("Unknown Key (scancode = %d) %s ", sym->scancode,
|
||
|
|
pressed ? "pressed" : "released");
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Print the translated character, if one exists */
|
||
|
|
if ( sym->unicode ) {
|
||
|
|
/* Is it a control-character? */
|
||
|
|
if ( sym->unicode < ' ' ) {
|
||
|
|
printf(" (^%c)", sym->unicode+'@');
|
||
|
|
} else {
|
||
|
|
#ifdef UNICODE
|
||
|
|
printf(" (%c)", sym->unicode);
|
||
|
|
#else
|
||
|
|
/* This is a Latin-1 program, so only show 8-bits */
|
||
|
|
if ( !(sym->unicode & 0xFF00) )
|
||
|
|
printf(" (%c)", sym->unicode);
|
||
|
|
else
|
||
|
|
printf(" (0x%X)", sym->unicode);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
print_modifiers();
|
||
|
|
printf("\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static int (SDLCALL * old_filterfunc) (void *, SDL_Event *);
|
||
|
|
static void *old_filterdata;
|
||
|
|
|
||
|
|
int SDLCALL
|
||
|
|
FilterEvents(void *userdata, SDL_Event * event)
|
||
|
|
{
|
||
|
|
static int reallyquit = 0;
|
||
|
|
|
||
|
|
if (old_filterfunc) {
|
||
|
|
old_filterfunc(old_filterdata, event);
|
||
|
|
}
|
||
|
|
|
||
|
|
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_APPINPUTFOCUS)
|
||
|
|
printf("input ");
|
||
|
|
if (event->active.state & SDL_APPMOUSEFOCUS)
|
||
|
|
printf("mouse ");
|
||
|
|
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 at %d,%d\n",
|
||
|
|
event->button.button,
|
||
|
|
(event->button.state == SDL_PRESSED) ? "pressed" : "released",
|
||
|
|
event->button.x, event->button.y);
|
||
|
|
return (0);
|
||
|
|
|
||
|
|
/* Show relative mouse motion */
|
||
|
|
case SDL_MOUSEMOTION:
|
||
|
|
#if 0
|
||
|
|
printf("Mouse motion: {%d,%d} (%d,%d)\n",
|
||
|
|
event->motion.x, event->motion.y,
|
||
|
|
event->motion.xrel, event->motion.yrel);
|
||
|
|
#endif
|
||
|
|
return (0);
|
||
|
|
|
||
|
|
case SDL_KEYDOWN:
|
||
|
|
PrintKey(&event->key.keysym, 1);
|
||
|
|
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|KMOD_META))) {
|
||
|
|
HotKey_ToggleFullScreen();
|
||
|
|
}
|
||
|
|
return (0);
|
||
|
|
|
||
|
|
case SDL_KEYUP:
|
||
|
|
PrintKey(&event->key.keysym, 0);
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
main(int argc, char *argv[])
|
||
|
|
{
|
||
|
|
SDL_Event event;
|
||
|
|
const char *title;
|
||
|
|
SDL_Surface *icon;
|
||
|
|
Uint8 *icon_mask;
|
||
|
|
int parsed;
|
||
|
|
int w, h;
|
||
|
|
|
||
|
|
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
|
||
|
|
fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
|
||
|
|
return (1);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check command line arguments */
|
||
|
|
w = 640;
|
||
|
|
h = 480;
|
||
|
|
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], "-width") == 0)) {
|
||
|
|
w = atoi(argv[2]);
|
||
|
|
argc -= 2;
|
||
|
|
argv += 2;
|
||
|
|
} else if ((argc >= 3) && (strcmp(argv[1], "-height") == 0)) {
|
||
|
|
h = atoi(argv[2]);
|
||
|
|
argc -= 2;
|
||
|
|
argv += 2;
|
||
|
|
} 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(w, h) < 0) {
|
||
|
|
quit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Set an event filter that discards everything but QUIT */
|
||
|
|
SDL_GetEventFilter(&old_filterfunc, &old_filterdata);
|
||
|
|
SDL_SetEventFilter(FilterEvents, NULL);
|
||
|
|
|
||
|
|
/* 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");
|
||
|
|
quit(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());
|
||
|
|
SDL_Quit();
|
||
|
|
return (255);
|
||
|
|
}
|