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netsurf/atari/gemtk/objc.c

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/*
* Copyright 2013 Ole Loots <ole@monochrom.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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, see <http://www.gnu.org/licenses/>.
*
* Module Description:
*
* AES Object tree tools.
*
*/
#include <assert.h>
#include "gemtk.h"
char *gemtk_obj_get_text(OBJECT * tree, short idx)
{
static char p[]="";
USERBLK *user;
char *retval;
switch (tree[idx].ob_type & 0x00FF) {
case G_BUTTON:
case G_STRING:
case G_TITLE:
return( tree[idx].ob_spec.free_string);
case G_TEXT:
case G_BOXTEXT:
case G_FTEXT:
case G_FBOXTEXT:
return (tree[idx].ob_spec.tedinfo->te_ptext);
case G_ICON:
case G_CICON:
return (tree[idx].ob_spec.iconblk->ib_ptext);
break;
default:
break;
}
return (p);
}
static void set_text(OBJECT *obj, short idx, char * text, int len)
{
char spare[255];
if( len > 254 )
len = 254;
if( text != NULL ) {
strncpy(spare, text, 254);
} else {
strcpy(spare, "");
}
set_string(obj, idx, spare);
}
char gemtk_obj_set_str_safe(OBJECT * tree, short idx, char *txt)
{
char spare[204];
short type = 0;
short maxlen = 0;
TEDINFO *ted;
type = (tree[idx].ob_type & 0xFF);
if (type == G_FTEXT || type == G_FBOXTEXT) {
TEDINFO *ted = ((TEDINFO *)get_obspec(tree, idx));
maxlen = ted->te_txtlen+1;
if (maxlen > 200) {
maxlen = 200;
} else if (maxlen < 0) {
maxlen = 0;
}
} else {
assert((type == G_FTEXT) || (type == G_FBOXTEXT));
}
snprintf(spare, maxlen, "%s", txt);
set_string(tree, idx, spare);
}
OBJECT *gemtk_obj_get_tree(int idx)
{
OBJECT *tree;
rsrc_gaddr(R_TREE, idx, &tree);
return tree;
}
bool gemtk_obj_is_inside(OBJECT * tree, short obj, GRECT *area)
{
GRECT obj_screen;
bool ret = false;
objc_offset(tree, obj, &obj_screen.g_x, &obj_screen.g_y);
obj_screen.g_w = tree[obj].ob_width;
obj_screen.g_h = tree[obj].ob_height;
ret = RC_WITHIN(&obj_screen, area);
return(ret);
}
GRECT * gemtk_obj_screen_rect(OBJECT * tree, short obj)
{
static GRECT obj_screen;
get_objframe(tree, obj, &obj_screen);
return(&obj_screen);
}
void gemtk_obj_mouse_sprite(OBJECT *tree, int index)
{
MFORM mform;
int dum;
if ((tree[index].ob_type & 0xFF) != G_ICON)
return;
dum = tree[index].ob_spec.iconblk->ib_char;
mform . mf_nplanes = 1;
mform . mf_fg = (dum>>8)&0x0F;
mform . mf_bg = dum>>12;
mform . mf_xhot = 0; /* to prevent the mform to "jump" on the */
mform . mf_yhot = 0; /* screen (zebulon rules!) */
for( dum = 0; dum<16; dum ++) {
mform . mf_mask[dum] = tree[index].ob_spec.iconblk->ib_pmask[dum];
mform . mf_data[dum] = tree[index].ob_spec.iconblk->ib_pdata[dum];
}
graf_mouse(USER_DEF, &mform);
}
/*
* gemtk_obj_tree_copy
*
* Copy a complete object-tree including all substructures (optional).
*
* CAUTION: The object-tree *must* have the LASTOB-flag (0x20) set in
* it's physically last member.
*
* BUG: Up to now tree_copy won't copy the color-icon-structure,
* because I'm too lazy ;) Maybe I'll do that one day. If you need it
* urgently, contact me and force me to work... Btw, this doesn't mean
* that G_CICONs won't be copied at all, but the copied tree will
* share the CICONBLKs with the original.
*
* Input:
* tree: Pointer to tree which should be copied
* what: Specifies what substructures should be copied, too (see the
* C_xxx-definitions in tree-copy.h for details)
*
* Output:
* NULL: Tree couldn't be copied (due to lack of memory)
* otherwise: Pointer to copied tree, use free to dealloc it's memory
*/
OBJECT *gemtk_obj_tree_copy(OBJECT *tree)
{
int16_t i, objects;
size_t to_malloc, size;
OBJECT *new_tree;
char *area;
/* Calculate the number of bytes we need for the new tree */
to_malloc = (size_t) 0;
for (i = 0;;) {
/* Size of the OBJECT-structure itself */
to_malloc += sizeof(OBJECT);
switch (tree[i].ob_type & 0xff) {
case G_TEXT:
case G_BOXTEXT:
case G_FTEXT:
case G_FBOXTEXT:
/* Size of a TEDINFO-structure */
to_malloc += sizeof(TEDINFO);
/* Sizes of the strings in the TEDINFO-structure */
to_malloc += (size_t)tree[i].ob_spec.tedinfo->te_txtlen;
to_malloc += (size_t)tree[i].ob_spec.tedinfo->te_txtlen;
to_malloc += (size_t)tree[i].ob_spec.tedinfo->te_tmplen;
break;
case G_IMAGE:
/* Size of the BITBLK-structure */
to_malloc += sizeof(BITBLK);
/* Size of the image-data in the BITBLK-structure */
to_malloc += (size_t)((int32_t)tree[i].ob_spec.bitblk->bi_wb *
(int32_t)tree[i].ob_spec.bitblk->bi_hl);
break;
case G_USERDEF:
/* Size of the USERBLK-structure */
to_malloc += sizeof(USERBLK);
break;
case G_BUTTON:
case G_STRING:
case G_TITLE:
/* Size of the string (with one null character at the end) */
to_malloc += strlen(tree[i].ob_spec.free_string) + 1L;
break;
case G_ICON:
/* Size of the ICONBLK-structure */
to_malloc += sizeof(BITBLK);
/* Sizes of icon-data, icon-mask and icon-text */
to_malloc += (size_t)((int32_t)tree[i].ob_spec.iconblk->ib_wicon *
(int32_t)tree[i].ob_spec.iconblk->ib_hicon /
4L + 1L +
(int32_t)strlen(tree[i].ob_spec.iconblk->ib_ptext));
break;
}
/* If the size is odd, make it even */
if ((long)to_malloc & 1)
to_malloc++;
/* Exit if we've reached the last object in the tree */
if (tree[i].ob_flags & OF_LASTOB)
break;
i++;
}
objects = i + 1;
/* If there's not enough memory left for the new tree, return NULL */
if ((new_tree = (OBJECT *)calloc(1, to_malloc)) == NULL) {
return(NULL);
}
/*
* area contains a pointer to the area where we copy the structures to
*/
area = (char *)((int32_t)new_tree+(int32_t)objects*(int32_t)sizeof(OBJECT));
for (i = 0; i < objects; i++) {
/* Copy the contents of the OBJECT-structure */
new_tree[i] = tree[i];
/* This was added to assure true copies of the object type */
new_tree[i].ob_type = tree[i].ob_type;
switch (tree[i].ob_type & 0xff) {
case G_TEXT:
case G_BOXTEXT:
case G_FTEXT:
case G_FBOXTEXT:
/* Copy the contents of the TEDINFO-structure */
*(TEDINFO *)area = *tree[i].ob_spec.tedinfo;
new_tree[i].ob_spec.tedinfo = (TEDINFO *)area;
area += sizeof(TEDINFO);
/* Copy the strings in the TEDINFO-structure */
strncpy(area, tree[i].ob_spec.tedinfo->te_ptext,
tree[i].ob_spec.tedinfo->te_txtlen);
new_tree[i].ob_spec.tedinfo->te_ptext = area;
area += tree[i].ob_spec.tedinfo->te_txtlen;
strncpy(area, tree[i].ob_spec.tedinfo->te_ptmplt,
tree[i].ob_spec.tedinfo->te_tmplen);
new_tree[i].ob_spec.tedinfo->te_ptmplt = area;
area += tree[i].ob_spec.tedinfo->te_tmplen;
strncpy(area, tree[i].ob_spec.tedinfo->te_pvalid,
tree[i].ob_spec.tedinfo->te_txtlen);
new_tree[i].ob_spec.tedinfo->te_pvalid = area;
area += tree[i].ob_spec.tedinfo->te_txtlen;
break;
case G_IMAGE:
/* Copy the contents of the BITBLK-structure */
*(BITBLK *)area = *tree[i].ob_spec.bitblk;
new_tree[i].ob_spec.bitblk = (BITBLK *)area;
area += sizeof(BITBLK);
/* Copy the image-data */
size = (size_t)((int32_t)tree[i].ob_spec.bitblk->bi_wb *
(int32_t)tree[i].ob_spec.bitblk->bi_hl);
memcpy(area, tree[i].ob_spec.bitblk->bi_pdata, size);
new_tree[i].ob_spec.bitblk->bi_pdata = (int16_t *)area;
area += size;
break;
case G_USERDEF:
/* Copy the contents of the USERBLK-structure */
*(USERBLK *)area = *tree[i].ob_spec.userblk;
new_tree[i].ob_spec.userblk = (USERBLK *)area;
area += sizeof(USERBLK);
break;
case G_BUTTON:
case G_STRING:
case G_TITLE:
/* Copy the string */
size = strlen(tree[i].ob_spec.free_string) + 1L;
strcpy(area, tree[i].ob_spec.free_string);
new_tree[i].ob_spec.free_string = area;
area += size;
break;
case G_ICON:
/* Copy the contents of the ICONBLK-structure */
*(ICONBLK *)area = *tree[i].ob_spec.iconblk;
new_tree[i].ob_spec.iconblk = (ICONBLK *)area;
area += sizeof(ICONBLK);
size = (size_t)((int32_t)tree[i].ob_spec.iconblk->ib_wicon *
(int32_t)tree[i].ob_spec.iconblk->ib_hicon /
8L);
/* Copy the mask-data */
memcpy(area, tree[i].ob_spec.iconblk->ib_pmask, size);
new_tree[i].ob_spec.iconblk->ib_pmask = (int16_t *)area;
area += size;
/* Copy the icon-data */
memcpy(area, tree[i].ob_spec.iconblk->ib_pdata, size);
new_tree[i].ob_spec.iconblk->ib_pdata = (int16_t *)area;
area += size;
size = strlen(tree[i].ob_spec.iconblk->ib_ptext) + 1L;
/* Copy the icon-string */
strcpy(area, tree[i].ob_spec.iconblk->ib_ptext);
new_tree[i].ob_spec.iconblk->ib_ptext = area;
area += size;
break;
}
/* Assure that area contains an even address */
if ((int32_t)area & 1)
area++;
}
return(new_tree);
}
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