/* Create a paragraph and divnode tied to each other */
g_error textbox_new_par_div(struct paragraph **par, struct divnode **div,
struct divnode *background) {
g_error e;
handle hpar;
struct gropctxt c;
struct paragraph *old_par = *par;
struct divnode *old_div = *div;
/* Top-level divnode for this paragraph is used for formatting, it's
* child is where the paragraph renders to.
*/
e = newdiv(div,background->owner);
errorcheck;
(*div)->flags |= DIVNODE_SPLIT_TOP;
(*div)->flags &= ~DIVNODE_UNDERCONSTRUCTION;
/* We want to prevent the normal groplist clearing in div_rebuild
* because the only way our build function has to know the
* paragraph handle is by reading the previous groplist.
*/
e = newdiv(&(*div)->div,background->owner);
errorcheck;
(*div)->div->build = &textbox_build_par_div;
(*div)->div->flags |= DIVNODE_RAW_BUILD;
(*div)->div->flags &= ~DIVNODE_UNDERCONSTRUCTION;
/* New paragraph with associated handle */
e = paragraph_new(par, *div);
errorcheck;
e = mkhandle(&hpar, PG_TYPE_PARAGRAPH, -1, *par);
errorcheck;
(*par)->background = background;
/* build the initial groplist-
* one incremental paragraph divnode, one normal one.
* The size and theme related params will be filled in later.
*/
gropctxt_init(&c,(*div)->div);
addgrop(&c,PG_GROP_SETCOLOR);
addgrop(&c,PG_GROP_PARAGRAPH);
c.current->param[0] = hpar;
addgrop(&c,PG_GROP_PARAGRAPH_INC);
c.current->param[0] = hpar;
c.current->flags |= PG_GROPF_INCREMENTAL;
/* Relink the portion of the paragraph and divnode lists after this node */
(*par)->next = old_par;
(*div)->next = old_div;
return success;
}
/* Fillstyle interpreter- generates/refreshes a gropnode list */
g_error exec_fillstyle_inner(struct gropctxt *ctx,u16 state,
u16 property) {
g_error e;
u32 fssize; /* Fillstyle size */
unsigned char *fs; /* Pointer to the actual fillstyle data */
unsigned char *p,*plimit;
unsigned char op;
int r,g,b; /* For color arithmetic */
struct widget *w;
int stackframe = fsstkpos-4;
/* Look up the fillstyle */
e = rdhandle((void**)&fs,PG_TYPE_FILLSTYLE,-1,theme_lookup(state,property));
errorcheck;
if (!fs) {
/* When our best just isn't good enough... */
if (property == PGTH_P_BACKDROP || property == PGTH_P_BORDER_FILL)
return success;
/* The default fillstyle, if no theme is loaded or no
theme has defined the property*/
addgrop(ctx,PG_GROP_SETCOLOR);
ctx->current->param[0] = VID(color_pgtohwr) (0x000000);
switch (state) {
case PGTH_O_BUTTON_ON: /* 2 borders */
addgropsz(ctx,PG_GROP_FRAME,ctx->r.x,ctx->r.y,ctx->r.w,ctx->r.h);
ctx->r.x += 1; ctx->r.y += 1; ctx->r.w -= 2; ctx->r.h -= 2;
default: /* 1 border */
addgropsz(ctx,PG_GROP_FRAME,ctx->r.x,ctx->r.y,ctx->r.w,ctx->r.h);
ctx->r.x += 1; ctx->r.y += 1; ctx->r.w -= 2; ctx->r.h -= 2;
case PGTH_O_LABEL_SCROLL: /* No border */
addgrop(ctx,PG_GROP_SETCOLOR);
ctx->current->param[0] = VID(color_pgtohwr) (theme_lookup(state,PGTH_P_BGCOLOR));
addgropsz(ctx,PG_GROP_RECT,ctx->r.x,ctx->r.y,ctx->r.w,ctx->r.h);
}
return success;
}
/* Process the opcodes */
fssize = *(((u32 *)fs)++);
p = fs;
plimit = fs+fssize;
while (p<plimit) {
op = *(p++);
/* These must occur in MSB to LSB order! (see constants.h) */
if (op & PGTH_OPSIMPLE_GROP) {
/* 1-byte gropnode */
e = fsgrop(ctx,op & (PGTH_OPSIMPLE_GROP-1));
errorcheck;
}
else if (op & PGTH_OPSIMPLE_LITERAL) {
/* 1-byte literal */
fsstack[fsstkpos++] = op & (PGTH_OPSIMPLE_LITERAL-1);
}
else if (op & PGTH_OPSIMPLE_CMDCODE) {
/* Command code */
switch (op) {
case PGTH_OPCMD_LONGLITERAL:
if ((plimit-p)<4)
return mkerror(PG_ERRT_BADPARAM,91); /* Truncated opcode */
fsstack[fsstkpos++] = NEXTLONG;
p += 4;
break;
case PGTH_OPCMD_LONGGROP:
if ((plimit-p)<2)
return mkerror(PG_ERRT_BADPARAM,91); /* Truncated opcode */
e = fsgrop(ctx,NEXTSHORT);
p += 2;
errorcheck;
break;
case PGTH_OPCMD_LONGGET:
if (plimit<=p)
return mkerror(PG_ERRT_BADPARAM,91); /* Truncated opcode */
e = fsget(*(p++)+stackframe);
errorcheck;
break;
case PGTH_OPCMD_LONGSET:
if (plimit<=p)
return mkerror(PG_ERRT_BADPARAM,91); /* Truncated opcode */
e = fsset(*(p++)+stackframe);
errorcheck;
break;
case PGTH_OPCMD_PROPERTY:
if ((plimit-p)<4)
return mkerror(PG_ERRT_BADPARAM,91); /* Truncated opcode */
fsa = NEXTSHORT;
p += 2;
fsb = NEXTSHORT;
p += 2;
fsstack[fsstkpos++] = theme_lookup(fsa,fsb);
#ifdef CONFIG_ANIMATION
/* If it depends on time or randomness, turn on the animated flag in the divnode */
if ((fsb==PGTH_P_TICKS || fsb==PGTH_P_RANDOM) && ctx->owner)
ctx->owner->flags |= DIVNODE_ANIMATED;
#endif
break;
case PGTH_OPCMD_LOCALPROP:
if ((plimit-p)<2)
return mkerror(PG_ERRT_BADPARAM,91); /* Truncated opcode */
fsa = NEXTSHORT;
p += 2;
#ifdef DEBUG_THEME
printf("Local theme lookup, property %d\n",(int)fsa);
#endif
fsstack[fsstkpos++] = theme_lookup(state,fsa);
#ifdef CONFIG_ANIMATION
/* If it depends on time or randomness, turn on the animated flag in the divnode */
if ((fsa==PGTH_P_TICKS || fsa==PGTH_P_RANDOM) && ctx->owner)
ctx->owner->flags |= DIVNODE_ANIMATED;
#endif
break;
case PGTH_OPCMD_PLUS:
e = fspopargs();
errorcheck;
fsstack[fsstkpos++] = fsa + fsb;
break;
case PGTH_OPCMD_MINUS:
e = fspopargs();
errorcheck;
fsstack[fsstkpos++] = fsa - fsb;
break;
case PGTH_OPCMD_MULTIPLY:
e = fspopargs();
errorcheck;
fsstack[fsstkpos++] = fsa * fsb;
break;
case PGTH_OPCMD_SHIFTL:
e = fspopargs();
errorcheck;
fsstack[fsstkpos++] = fsa << fsb;
break;
case PGTH_OPCMD_SHIFTR:
e = fspopargs();
errorcheck;
fsstack[fsstkpos++] = fsa >> fsb;
break;
case PGTH_OPCMD_OR:
e = fspopargs();
errorcheck;
fsstack[fsstkpos++] = fsa | fsb;
break;
case PGTH_OPCMD_AND:
e = fspopargs();
errorcheck;
fsstack[fsstkpos++] = fsa & fsb;
break;
case PGTH_OPCMD_EQ:
e = fspopargs();
errorcheck;
fsstack[fsstkpos++] = fsa == fsb;
break;
case PGTH_OPCMD_LT:
e = fspopargs();
errorcheck;
fsstack[fsstkpos++] = fsa < fsb;
break;
case PGTH_OPCMD_GT:
e = fspopargs();
errorcheck;
fsstack[fsstkpos++] = fsa > fsb;
break;
case PGTH_OPCMD_LOGICAL_OR:
e = fspopargs();
errorcheck;
fsstack[fsstkpos++] = fsa || fsb;
break;
case PGTH_OPCMD_LOGICAL_AND:
e = fspopargs();
errorcheck;
fsstack[fsstkpos++] = fsa && fsb;
break;
case PGTH_OPCMD_LOGICAL_NOT:
fsstack[fsstkpos-1] = !fsstack[fsstkpos-1];
break;
case PGTH_OPCMD_DIVIDE:
e = fspopargs();
errorcheck;
if (fsb)
fsstack[fsstkpos++] = fsa / fsb;
else
fsstack[fsstkpos++] = 0xFFFFFFFF; /* limit of fsa/fsb as fsb approaches 0 */
break;
case PGTH_OPCMD_COLORADD:
e = fspopargs();
errorcheck;
r = getred(fsa);
g = getgreen(fsa);
b = getblue(fsa);
r += getred(fsb);
g += getgreen(fsb);
b += getblue(fsb);
if (r>255) r = 255;
if (g>255) g = 255;
if (b>255) b = 255;
fsstack[fsstkpos++] = mkcolor(r,g,b);
break;
case PGTH_OPCMD_COLORSUB:
e = fspopargs();
errorcheck;
r = getred(fsa);
g = getgreen(fsa);
b = getblue(fsa);
r -= getred(fsb);
g -= getgreen(fsb);
b -= getblue(fsb);
if (r<0) r = 0;
if (g<0) g = 0;
if (b<0) b = 0;
fsstack[fsstkpos++] = mkcolor(r,g,b);
break;
case PGTH_OPCMD_COLORDIV:
e = fspopargs();
errorcheck;
r = getred(fsa);
g = getgreen(fsa);
b = getblue(fsa);
r = getred(fsb) ? (r/getred(fsb)) : 0xFF; /* Avoid divide by zero */
g = getgreen(fsb) ? (g/getgreen(fsb)) : 0xFF;
b = getred(fsb) ? (b/getblue(fsb)) : 0xFF;
fsstack[fsstkpos++] = mkcolor(r,g,b);
break;
case PGTH_OPCMD_COLORMULT:
e = fspopargs();
errorcheck;
r = getred(fsa);
g = getgreen(fsa);
b = getblue(fsa);
r *= getred(fsb);
g *= getgreen(fsb);
b *= getblue(fsb);
if (r>255) r = 255;
if (g>255) g = 255;
if (b>255) b = 255;
fsstack[fsstkpos++] = mkcolor(r,g,b);
break;
case PGTH_OPCMD_QUESTIONCOLON:
if (fsstkpos<3)
return mkerror(PG_ERRT_BADPARAM,88); /* Stack underflow */
fsstkpos -= 2;
fsstack[fsstkpos-1] = fsstack[fsstkpos+1] ?
fsstack[fsstkpos] : fsstack[fsstkpos-1];
break;
case PGTH_OPCMD_WIDGET:
if (ctx->owner && ctx->owner->owner)
fsstack[fsstkpos++] = hlookup(ctx->owner->owner,NULL);
else
fsstack[fsstkpos++] = 0;
break;
case PGTH_OPCMD_TRAVERSEWGT:
if (fsstkpos<3)
return mkerror(PG_ERRT_BADPARAM,88); /* Stack underflow */
fsstkpos -= 2;
e = rdhandle((void**)&w, PG_TYPE_WIDGET, -1, fsstack[fsstkpos+1]);
errorcheck;
if (w)
fsstack[fsstkpos-1] = hlookup(widget_traverse(w,fsstack[fsstkpos],fsstack[fsstkpos-1]),NULL);
else
fsstack[fsstkpos-1] = 0;
break;
case PGTH_OPCMD_GETWIDGET:
e = fspopargs();
errorcheck;
e = rdhandle((void**)&w, PG_TYPE_WIDGET, -1, fsa);
errorcheck;
if (w)
fsstack[fsstkpos++] = widget_get(w,fsb);
else
fsstack[fsstkpos++] = 0;
break;
case PGTH_OPCMD_CALL:
if ((plimit-p)<4)
return mkerror(PG_ERRT_BADPARAM,91); /* Truncated opcode */
fsa = NEXTSHORT;
p += 2;
fsb = NEXTSHORT;
p += 2;
e = exec_fillstyle_inner(ctx,fsa,fsb);
errorcheck;
break;
case PGTH_OPCMD_LOCALCALL:
if ((plimit-p)<2)
return mkerror(PG_ERRT_BADPARAM,91); /* Truncated opcode */
fsb = NEXTSHORT;
p += 2;
e = exec_fillstyle_inner(ctx,state,fsb);
errorcheck;
break;
case PGTH_OPCMD_EXTENDED:
/* extended command */
op = *(p++);
switch (op) {
case PGTH_EXCMD_SKIP_IF:
if (!fsstack[--fsstkpos]) {
--fsstkpos;
break;
}
/* else proceed to EXCMD_SKIP */
case PGTH_EXCMD_SKIP:
p += (s32)fsstack[--fsstkpos];
break;
}
break;
}
}
else if (op & PGTH_OPSIMPLE_GET) {
/* 1-byte get */
e = fsget((op & (PGTH_OPSIMPLE_GET-1)) + stackframe);
errorcheck;
}
else {
/* 1-byte set */
e = fsset(op + stackframe);
errorcheck;
}
#ifdef DEBUG_THEME
/* trace */
printf("FILLSTYLE --- Op: 0x%02X Stk:",op);
for (fsa=0;fsa<fsstkpos;fsa++)
printf(" %d",(int)fsstack[fsa]);
printf("\n");
#endif
/* check for stack over/underflow */
if (fsstkpos<0)
return mkerror(PG_ERRT_BADPARAM,88); /* Stack underflow */
if (fsstkpos>=FSSTACKSIZE)
return mkerror(PG_ERRT_BADPARAM,89); /* Stack overflow */
}