*/ REBFLG Find_Gob_Tree(REBGOB *gob, REBGOB *tgob)
/*
** Scan a gob tree for the target gob. Return true or false.
** Gob MUST have a pane (check for it first).
**
***********************************************************************/
{
REBGOB **gp;
REBINT n;
gp = GOB_HEAD(gob);
for (n = GOB_TAIL(gob); n > 0; n--, gp++) {
if (*gp == tgob) return TRUE;
if (GOB_PANE(*gp) && Find_Gob_Tree(*gp, tgob)) return TRUE;
}
return FALSE;
}
*/ static REBCNT Find_Gob(REBGOB *gob, REBGOB *target)
/*
** Find a target GOB within the pane of another gob.
** Return the index, or a -1 if not found.
**
***********************************************************************/
{
REBCNT len;
REBCNT n;
REBGOB **ptr;
if (GOB_PANE(gob)) {
len = GOB_TAIL(gob);
ptr = GOB_HEAD(gob);
for (n = 0; n < len; n++, ptr++)
if (*ptr == target) return n;
}
return NOT_FOUND;
}
*/ static REBGOB *Map_Gob_Inner(REBGOB *gob, REBXYF *offset)
/*
** Map a higher level gob coordinate to a lower level.
** Returns GOB and sets new offset pair.
**
***********************************************************************/
{
REBD32 xo = offset->x;
REBD32 yo = offset->y;
REBINT n;
REBINT len;
REBGOB **gop;
REBD32 x = 0;
REBD32 y = 0;
REBINT max_depth = 1000; // avoid infinite loops
while (GOB_PANE(gob) && (max_depth-- > 0)) {
len = GOB_TAIL(gob);
gop = GOB_HEAD(gob) + len - 1;
for (n = 0; n < len; n++, gop--) {
if (
(xo >= x + GOB_X(*gop)) &&
(xo < x + GOB_X(*gop) + GOB_W(*gop)) &&
(yo >= y + GOB_Y(*gop)) &&
(yo < y + GOB_Y(*gop) + GOB_H(*gop))
){
x += GOB_X(*gop);
y += GOB_Y(*gop);
gob = *gop;
break;
}
}
if (n >= len) break; // not found
}
offset->x -= x;
offset->y -= y;
return gob;
}
*/ static REBSER *Pane_To_Block(REBGOB *gob, REBCNT index, REBINT len)
/*
** Convert pane list of gob pointers to a block of GOB!s.
**
***********************************************************************/
{
REBSER *ser;
REBGOB **gp;
REBVAL *val;
if (len == -1 || (len + index) > GOB_TAIL(gob)) len = GOB_TAIL(gob) - index;
if (len < 0) len = 0;
ser = Make_Block(len);
ser->tail = len;
val = BLK_HEAD(ser);
gp = GOB_HEAD(gob);
for (; len > 0; len--, val++, gp++) {
SET_GOB(val, *gp);
}
SET_END(val);
return ser;
}
*/ static void process_gobs(REBCMP_CTX* ctx, REBGOB* gob)
/*
** Recursively process and compose gob and its children.
**
** NOTE: this function is used internally by rebcmp_compose() call only.
**
***********************************************************************/
{
//RL_Print("process_gobs: %x\n", gob);
REBINT x = ROUND_TO_INT(ctx->absOffset.x);
REBINT y = ROUND_TO_INT(ctx->absOffset.y);
REBYTE* color;
Region saved_win_region = XCreateRegion();
if (GET_GOB_STATE(gob, GOBS_NEW)){
//reset old-offset and old-size if newly added
GOB_XO(gob) = GOB_LOG_X(gob);
GOB_YO(gob) = GOB_LOG_Y(gob);
GOB_WO(gob) = GOB_LOG_W(gob);
GOB_HO(gob) = GOB_LOG_H(gob);
CLR_GOB_STATE(gob, GOBS_NEW);
}
//intersect gob dimensions with actual window clip region
REBOOL valid_intersection = 1;
//------------------------------
//Put backend specific code here
//------------------------------
XRectangle rect;
rect.x = x;
rect.y = y;
rect.width = GOB_LOG_W(gob);
rect.height = GOB_LOG_H(gob);
/*
RL_Print("gob , left: %d,\ttop: %d,\tright: %d,\tbottom: %d\n",
rect.x,
rect.y,
rect.x + rect.width,
rect.y + rect.height);
*/
Region reg = XCreateRegion();
XUnionRectWithRegion(&rect, reg, reg);
/*
XClipBox(ctx->Win_Region, &rect);
RL_Print("Win Region , left: %d,\ttop: %d,\tright: %d,\tbottom: %d\n",
rect.x,
rect.y,
rect.x + rect.width,
rect.y + rect.height);
*/
XUnionRegion(saved_win_region, ctx->Win_Region, saved_win_region);
XIntersectRegion(reg, ctx->Win_Region, ctx->Win_Region);
XClipBox(ctx->Win_Region, &rect);
/*
RL_Print("Win and Gob, left: %d,\ttop: %d,\tright: %d,\tbottom: %d\n",
rect.x,
rect.y,
rect.x + rect.width,
rect.y + rect.height);
*/
//get the current Window clip box
REBRECT gob_clip = {
rect.x, //left
rect.y, //top
rect.width + rect.x, //right
rect.height + rect.y //bottom
/*
GOB_LOG_X(gob), //left
GOB_LOG_Y(gob), //top
GOB_LOG_W(gob) + GOB_LOG_X(gob), //right
GOB_LOG_H(gob) + GOB_LOG_Y(gob), //bottom
*/
};
//RL_Print("Window_Buffer: 0x%x\n", ctx->Window_Buffer);
/*
RL_Print("gob clip , left: %d,\ttop: %d,\tright: %d,\tbottom: %d\n",
gob_clip.left,
gob_clip.top,
gob_clip.right,
gob_clip.bottom);
*/
if (!XEmptyRegion(ctx->Win_Region))
//if (valid_intersection)
{
//render GOB content
switch (GOB_TYPE(gob)) {
case GOBT_COLOR:
//------------------------------
//Put backend specific code here
//------------------------------
// or use the similar draw api call:
//RL_Print("Draw Color at: %d, %d\n", x, y);
rebdrw_gob_color(gob, ctx->Window_Buffer, ctx->winBufSize, (REBXYI){x,y}, (REBXYI){gob_clip.left, gob_clip.top}, (REBXYI){gob_clip.right, gob_clip.bottom});
break;
case GOBT_IMAGE:
{
//RL_Print("Draw Image\n");
//------------------------------
//Put backend specific code here
//------------------------------
// or use the similar draw api call:
rebdrw_gob_image(gob, ctx->Window_Buffer, ctx->winBufSize, (REBXYI){x,y}, (REBXYI){gob_clip.left, gob_clip.top}, (REBXYI){gob_clip.right, gob_clip.bottom});
}
break;
case GOBT_DRAW:
{
//RL_Print("Draw Draw at: %d, %d\n", x, y);
//------------------------------
//Put backend specific code here
//------------------------------
// or use the similar draw api call:
rebdrw_gob_draw(gob, ctx->Window_Buffer ,ctx->winBufSize, (REBXYI){x,y}, (REBXYI){gob_clip.left, gob_clip.top}, (REBXYI){gob_clip.right, gob_clip.bottom});
}
break;
case GOBT_TEXT:
case GOBT_STRING:
//RL_Print("Draw Text at: %d, %d\n", x, y);
//------------------------------
//Put backend specific code here
//------------------------------
// or use the similar draw api call:
rt_gob_text(gob, ctx->Window_Buffer ,ctx->winBufSize,ctx->absOffset, (REBXYI){gob_clip.left, gob_clip.top}, (REBXYI){gob_clip.right, gob_clip.bottom});
break;
case GOBT_EFFECT:
//RL_Print("Draw Effect\n");
//not yet implemented
break;
}
//recursively process sub GOBs
if (GOB_PANE(gob)) {
REBINT n;
REBINT len = GOB_TAIL(gob);
REBGOB **gp = GOB_HEAD(gob);
for (n = 0; n < len; n++, gp++) {
REBINT g_x = GOB_LOG_X(*gp);
REBINT g_y = GOB_LOG_Y(*gp);
//restore the "parent gob" clip region
//------------------------------
//Put backend specific code here
//------------------------------
ctx->absOffset.x += g_x;
ctx->absOffset.y += g_y;
process_gobs(ctx, *gp);
ctx->absOffset.x -= g_x;
ctx->absOffset.y -= g_y;
}
}
}
XDestroyRegion(reg);
XDestroyRegion(ctx->Win_Region);
ctx->Win_Region = saved_win_region;
}
*/ static void process_gobs(REBCMP_CTX* ctx, REBGOB* gob)
/*
** Recursively process and compose gob and its children.
**
** NOTE: this function is used internally by rebcmp_compose() call only.
**
***********************************************************************/
{
REBINT x = ROUND_TO_INT(ctx->absOffset.x);
REBINT y = ROUND_TO_INT(ctx->absOffset.y);
if (GET_GOB_STATE(gob, GOBS_NEW)){
//reset old-offset and old-size if newly added
GOB_XO(gob) = GOB_LOG_X(gob);
GOB_YO(gob) = GOB_LOG_Y(gob);
GOB_WO(gob) = GOB_LOG_W(gob);
GOB_HO(gob) = GOB_LOG_H(gob);
CLR_GOB_STATE(gob, GOBS_NEW);
}
//intersect gob dimensions with actual window clip region
REBOOL valid_intersection;
//------------------------------
//Put backend specific code here
//------------------------------
//get the current Window clip box
REBRECT gob_clip;
//------------------------------
//Put backend specific code here
//------------------------------
if (valid_intersection)
{
//render GOB content
switch (GOB_TYPE(gob)) {
case GOBT_COLOR:
//------------------------------
//Put backend specific code here
//------------------------------
// or use the similar draw api call:
// rebdrw_gob_color(gob, ctx->Window_Buffer, ctx->winBufSize, (REBXYI){x,y}, (REBXYI){gob_clip.left, gob_clip.top}, (REBXYI){gob_clip.right, gob_clip.bottom});
break;
case GOBT_IMAGE:
{
//------------------------------
//Put backend specific code here
//------------------------------
// or use the similar draw api call:
// rebdrw_gob_image(gob, ctx->Window_Buffer, ctx->winBufSize, (REBXYI){x,y}, (REBXYI){gob_clip.left, gob_clip.top}, (REBXYI){gob_clip.right, gob_clip.bottom});
}
break;
case GOBT_DRAW:
{
//------------------------------
//Put backend specific code here
//------------------------------
// or use the similar draw api call:
// rebdrw_gob_draw(gob, ctx->Window_Buffer ,ctx->winBufSize, (REBXYI){x,y}, (REBXYI){gob_clip.left, gob_clip.top}, (REBXYI){gob_clip.right, gob_clip.bottom});
}
break;
case GOBT_TEXT:
case GOBT_STRING:
//------------------------------
//Put backend specific code here
//------------------------------
// or use the similar draw api call:
// rt_gob_text(gob, ctx->Window_Buffer ,ctx->winBufSize,ctx->absOffset, (REBXYI){gob_clip.left, gob_clip.top}, (REBXYI){gob_clip.right, gob_clip.bottom});
break;
case GOBT_EFFECT:
//not yet implemented
break;
}
//recursively process sub GOBs
if (GOB_PANE(gob)) {
REBINT n;
REBINT len = GOB_TAIL(gob);
REBGOB **gp = GOB_HEAD(gob);
for (n = 0; n < len; n++, gp++) {
REBINT g_x = GOB_LOG_X(*gp);
REBINT g_y = GOB_LOG_Y(*gp);
//restore the "parent gob" clip region
//------------------------------
//Put backend specific code here
//------------------------------
ctx->absOffset.x += g_x;
ctx->absOffset.y += g_y;
process_gobs(ctx, *gp);
ctx->absOffset.x -= g_x;
ctx->absOffset.y -= g_y;
}
}
}
}
