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/* Zgv v3.0 - GIF, JPEG and PBM/PGM/PPM viewer, for VGA PCs running Linux.
* Copyright (C) 1993-1998 Russell Marks. See README for license details.
*
* 3deffects.c - provides the '3d' style boxes, text etc.
* used by zgv.c (for file selector) and vgadisp.c
* (for help screen)
*/
#include <unistd.h>
#include <vga.h>
#include "3deffects.h"
#include "font.h"
#include "readnbkey.h"
#include "zgv.h"
#include "rc_config.h"
#include "rcfile.h"
int msgbox_draw_ok=0; /* 1 if ok to draw msgbox in current mode */
/* produce tacky 3d text */
void drawtext3d(int x,int y,int s,char *str,
int isout,int lite,int dark,int txt)
{
vga_setcolor(isout?lite:dark);
vgadrawtext(x-1,y-1,s,str);
vga_setcolor(isout?dark:lite);
vgadrawtext(x+1,y+1,s,str);
vga_setcolor(txt);
vgadrawtext(x,y,s,str);
}
/* restore sanity */
void undrawtext3d(int x,int y,int s,char *str)
{
vga_setcolor(idx_medium);
vgadrawtext(x-1,y-1,s,str);
vgadrawtext(x+1,y+1,s,str);
vgadrawtext(x,y,s,str);
}
/* render each bock in 3d */
void draw3dbox(int x1,int y1,int x2,int y2,int depth,
int isout,int lite,int dark)
{
int f;
for(f=0;f<depth;f++)
{
vga_setcolor(isout?lite:dark);
vga_drawline(x1+f,y2-f,x1+f,y1+f);
vga_drawline(x1+f,y1+f,x2-f,y1+f);
vga_setcolor(isout?dark:lite);
vga_drawline(x2-f,y1+f,x2-f,y2-f);
vga_drawline(x2-f,y2-f,x1+f,y2-f);
}
}
/* Undraw each relevant bock */
void undraw3dbox(int x1,int y1,int x2,int y2,int depth)
{
int f;
vga_setcolor(idx_medium);
for(f=0;f<depth;f++)
{
vga_drawline(x1+f,y2-f,x1+f,y1+f);
vga_drawline(x1+f,y1+f,x2-f,y1+f);
vga_drawline(x2-f,y1+f,x2-f,y2-f);
vga_drawline(x2-f,y2-f,x1+f,y2-f);
}
}
/* this blasts whatever is 'under' it - you have to save or redraw it.
* also, if msgbox_draw_ok is zero, it changes to 640x480x16 mode before
* drawing the box, and obviously this blasts the lot. :-)
*/
int msgbox(int ttyfd,char *message,int replytype,int lite,int dark,int txt)
{
int f,x1,y1,x2,y2,wide,high,key;
if(!msgbox_draw_ok)
{
/* fairly nasty, but it'll be followed by a mode change so it
* doesn't matter.
*/
vga_setmode((vga_hasmode(G640x480x256) && cfg.force16fs==0)?
G640x480x256:G640x480x16);
vga_setpalette(idx_medium=1,cfg.medium.r,cfg.medium.g,cfg.medium.b);
vga_setpalette(dark=2,cfg.dark.r,cfg.dark.g,cfg.dark.b);
vga_setpalette(lite=3,cfg.light.r,cfg.light.g,cfg.light.b);
vga_setpalette(txt =4,cfg.black.r,cfg.black.g,cfg.black.b);
}
set_max_text_width(570);
high=90;
wide=vgatextsize(3,message)+60;
x1=((vga_getxdim()-wide)>>1);
y1=((vga_getydim()-high)>>1);
x2=((vga_getxdim()+wide)>>1);
y2=((vga_getydim()+high)>>1);
vga_setcolor(idx_medium);
for(f=y1;f<y2;f++)
vga_drawline(x1,f,x2,f);
/* draw outer box */
draw3dbox(x1 ,y1 ,x2 ,y2 ,2,1, lite,dark);
draw3dbox(x1+9,y1+9,x2-9,y2-9,1,0, lite,dark);
/* finally, I've got around to doing different types of msgbox! */
switch(replytype)
{
/* a box with a single 'OK' button, for warnings, errors, etc. */
case MSGBOXTYPE_OK:
/* draw 'button' */
draw3dbox((vga_getxdim()-40)>>1,y2-45,
(vga_getxdim()+40)>>1,y2-20, 1,1, lite,dark);
vga_setcolor(txt);
vgadrawtext(x1+30,y1+20,3,message);
drawtext3d(((vga_getxdim()-15)>>1)-3*(cfg.linetext==0),y2-39,3,
"OK",0,lite,dark,txt);
set_max_text_width(NO_CLIP_FONT);
do
{
usleep(40000);
key=readnbkey(ttyfd);
}
while((key!=RK_ESC)&&(key!=RK_ENTER));
return(1);
/* a box with two buttons, 'Yes' and 'No'. Enter or 'y' selects yes,
* Esc or 'n' selects no.
*/
case MSGBOXTYPE_YESNO:
/* draw 'yes' button */
draw3dbox((vga_getxdim()>>1)-50,y2-45,
(vga_getxdim()>>1)-10,y2-20, 1,1, lite,dark);
vga_setcolor(txt);
vgadrawtext(x1+30,y1+20,3,message); /* draw message */
drawtext3d((vga_getxdim()>>1)-43-1*(cfg.linetext==0),y2-39,3,
"Yes",0,lite,dark,txt);
/* draw 'no' button */
draw3dbox((vga_getxdim()>>1)+10,y2-45,
(vga_getxdim()>>1)+50,y2-20, 1,1, lite,dark);
vga_setcolor(txt);
drawtext3d((vga_getxdim()>>1)+23-2*(cfg.linetext==0),y2-39,3,
"No",0,lite,dark,txt);
set_max_text_width(NO_CLIP_FONT);
do
{
usleep(40000);
key=readnbkey(ttyfd);
}
while(key!=RK_ESC && key!=RK_ENTER && key!='y' && key!='n');
return(key==RK_ENTER || key=='y');
}
return(0);
}
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