Complete keyjamming application

git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@2336 8092fc87-c524-0410-9efc-e669fe64eaf9

tools/keys/Makefile

@@ -1,5 +1,5 @@
 all: keyjam.c
-	gcc `sdl-config --cflags` `sdl-config --libs` -o keyjam keyjam.c
+	gcc $(shell sdl-config --cflags) -o keyjam keyjam.c $(shell sdl-config --libs) -lSDL_gfx
 
 clean:
 	rm -f keyjam

tools/keys/keyjam.c

@@ -1,13 +1,63 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include "SDL.h"
+#include "SDL_gfxPrimitives.h"
+
+#define BUFFERSIZE 1024
 
 static int keystate[SDLK_LAST];
+static char held_keys[BUFFERSIZE];
+
+
+void
+DrawCenteredText (SDL_Surface *s, int y, const char *c)
+{
+	int w = strlen (c) * 8;
+	
+	stringRGBA(s, (s->w - w) / 2, y, c, 0xc0, 0xc0, 0xc0, 0xff);
+}
+
+void
+DrawScreen (SDL_Surface *s)
+{	
+	int y;
+	SDL_FillRect (s, NULL, SDL_MapRGB (s->format, 0, 0, 0x80));
+	DrawCenteredText (s, 8, "Key Jamming");
+
+	y = 32;
+
+	DrawCenteredText (s, y, "Many keyboards have hardware that does not permit them to send");
+	y += 8;
+	DrawCenteredText (s, y, "arbitrary keychords to the computer.  This can complicate games");
+	y += 8;
+	DrawCenteredText (s, y, "with keyboard control, as activating certain controls may lock out");
+	y += 8;
+	DrawCenteredText (s, y, "others.  This application lets you pre-test control combinations so");
+	y += 8;
+	DrawCenteredText (s, y, "as to avoid such conflicts.");
+
+	y += 16;
+	DrawCenteredText (s, y, "Test your keyboard by pressing key combinations.  The keyboard's");
+	y += 8;
+	DrawCenteredText (s, y, "status will be reported in the bottom half of the screen.  When");
+	y += 8;
+	DrawCenteredText (s, y, "configuring keys for a game, do not select keys that do not all");
+	y += 8;
+	DrawCenteredText (s, y, "register when simultaneously pressed.");
+
+	y += 16;
+	DrawCenteredText (s, y, "Press ESCAPE to exit.");
+
+	DrawCenteredText (s, 300, held_keys);
+
+	SDL_Flip (s);
+}
 
 int 
 main (int argc, char *argv[])
 {        
 	SDL_Event event;
+	SDL_Surface *screen;
 	int quit = 0;
 	int i, changed;
         
@@ -19,18 +69,22 @@ main (int argc, char *argv[])
 	}
 
 	/* Set a video mode */
-	if (!SDL_SetVideoMode (320, 200, 0, 0))
+	if (!(screen = SDL_SetVideoMode (640, 480, 0, SDL_SWSURFACE | SDL_DOUBLEBUF | SDL_ANYFORMAT)))
 	{
 		fprintf (stderr, "Could not set video mode: %s\n", SDL_GetError());
 		SDL_Quit ();
 		exit (-1);
 	}
 
+	SDL_WM_SetCaption ("Key Jammer", "Key Jammer");
+
 	for (i = 0; i < SDLK_LAST; i++)
 	{
 		keystate[i] = 0;
 	}
 
+	DrawScreen (screen);
+
 	/* Loop until an SDL_QUIT event is found */
 	while( !quit ) {
 		changed = 0;
@@ -56,15 +110,35 @@ main (int argc, char *argv[])
 			}
 		}
 		if (changed) {
-			printf ("Status:");
+			held_keys[0] = '\0';
 			for (i = 0; i < SDLK_LAST; i++)
 			{
 				if (keystate[i])
 				{
-					printf(" %s", SDL_GetKeyName (i));
+					if (held_keys[0])
+					{
+						strcat(held_keys, " ");
+					}
+					strcat(held_keys, SDL_GetKeyName (i));
+				}
+				if (strlen (held_keys) > 200)
+				{
+					break;
 				}
 			}
-			printf ("\n");
+			for (i = 0; i < BUFFERSIZE; i++)
+			{
+				if (!held_keys[i])
+				{
+					break;
+				}
+				held_keys[i] = toupper (held_keys[i]);
+			}
+			DrawScreen (screen);
+		}
+		if (keystate[SDLK_ESCAPE])
+		{
+			quit = 1;
 		}
 	}