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Diffstat (limited to 'src/gui.c')
| -rw-r--r-- | src/gui.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/src/gui.c b/src/gui.c new file mode 100644 index 0000000..3a4b031 --- /dev/null +++ b/src/gui.c @@ -0,0 +1,210 @@ +/* + + espec - Sinclair Spectrum emulator + + Copyright (C) 2003 Ian Cowburn (ianc@noddybox.demon.co.uk) + + 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + ------------------------------------------------------------------------- + + Basic GUI routines + +*/ +static const char ident[]="$Id$"; + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <stdarg.h> +#include <ctype.h> + +#include "gui.h" +#include "gfx.h" +#include "exit.h" + +static const char ident_h[]=ESPEC_GUI_H; + + +/* ---------------------------------------- MACROS +*/ +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + +/* Must match gfx.c +*/ +#define SCR_W 320 +#define SCR_H 200 + +/* ---------------------------------------- STATICS +*/ + + +/* ---------------------------------------- PRIVATE FUNCTIONS +*/ +static void *Malloc(size_t size) +{ + void *p=malloc(size); + + if (!p) + Exit("malloc failed for %lu bytes\n",(unsigned long)size); + + return p; +} + + +static void Centre(const char *p, int y, int r, int g, int b) +{ + GFXPrint((SCR_W-strlen(p)*8)/2,y,GFXRGB(r,g,b),"%s",p); +} + + +/* ---------------------------------------- EXPORTED INTERFACES +*/ +void GUIMessage(const char *title, const char *format,...) +{ + char buff[1025]; + va_list va; + char *p; + int no; + int f; + char **line; + int width; + int height; + int x,y; + + va_start(va,format); + vsprintf(buff,format,va); + va_end(va); + + p=buff; + no=1; + + while(*p) + { + if (*p=='\n') + no++; + + p++; + } + + line=Malloc(sizeof *line * no); + + line[0]=strtok(buff,"\n"); + width=strlen(line[0]); + + for(f=1;f<no;f++) + { + line[f]=strtok(NULL,"\n"); + + if (strlen(line[f])>width) + width=strlen(line[f]); + } + + width=(width*8)+16; + height=(no+3)*10; + + if (width>(SCR_W-10)) + width=SCR_W-10; + + if (height>(SCR_H-10)) + height=SCR_H-10; + + y=(SCR_H-height)/2; + x=(SCR_W-width)/2; + + GFXRect(x-1,y-1, + width+2,height+2, + GFXRGB(255,255,255),FALSE); + + GFXRect(x,y, + width,height, + GFXRGB(0,0,0),TRUE); + + Centre(title,y+2,255,255,255); + GFXHLine(x+2,x+width-4,y+10,GFXRGB(255,255,255)); + + for(f=0;f<no;f++) + Centre(line[f],y+5+10*(f+1),200,200,200); + + Centre("Press a key",y+height-10,255,0,0); + + GFXEndFrame(FALSE); + + GFXWaitKey(); + + free(line); +} + + +const char *GUIInputString(const char *prompt, const char *orig) +{ + static const int y_pos=SCR_H-8; + static char buff[41]; + size_t len; + int done=FALSE; + SDL_Event *e; + + buff[0]=0; + strncat(buff,orig,40); + len=strlen(buff); + + while(!done) + { + GFXRect(0,y_pos,SCR_W,8,GFXRGB(0,0,0),TRUE); + GFXPrint(0,y_pos,GFXRGB(255,255,255),"%s %s%c",prompt,buff,FONT_CURSOR); + GFXEndFrame(FALSE); + + e=GFXWaitKey(); + + switch(e->key.keysym.sym) + { + case SDLK_RETURN: + case SDLK_KP_ENTER: + done=TRUE; + break; + + case SDLK_ESCAPE: + buff[0]=0; + len=0; + break; + + case SDLK_BACKSPACE: + case SDLK_DELETE: + if (len) + buff[--len]=0; + + break; + + default: + if (len<40 && isprint(e->key.keysym.sym)) + { + buff[len++]=(char)e->key.keysym.sym; + buff[len]=0; + } + break; + } + } + + return buff; +} + + +/* END OF FILE */ |