netsurf/frontends/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.
*
*/
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#include <assert.h>
#include "gemtk.h"
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char *gemtk_obj_get_text(OBJECT * tree, short idx)
{
static char p[]="";
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);
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}
*/
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char gemtk_obj_set_str_safe(OBJECT * tree, short idx, const char *txt)
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{
char spare[204];
short type = 0;
short maxlen = 0;
type = (tree[idx].ob_type & 0xFF);
if (type == G_FTEXT || type == G_FBOXTEXT) {
TEDINFO *ted = ((TEDINFO *)get_obspec(tree, idx));
maxlen = ted->te_tmplen+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);
return(0);
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}
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OBJECT *gemtk_obj_get_tree(int idx)
{
OBJECT *tree;
rsrc_gaddr(R_TREE, idx, &tree);
return tree;
}
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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);
}
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GRECT * gemtk_obj_screen_rect(OBJECT * tree, short obj)
{
static GRECT obj_screen;
get_objframe(tree, obj, &obj_screen);
return(&obj_screen);
}
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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);
}
/***
* Create a simple OBJECT tree from a list of strings, to be used with menu_popup
* OBJECT ownership is passed to caller.
* Call gemtk_obj_destroy_popup_tree once the popup isn't needed anymore.
*
* \param items A list of string to be used as items
* \param nitems The number of items in the list
* \param selected The text of the selected item
* \param horizontal Set to true to render the tree horizontally
* \param max_width -1: autodetect width
* \param max_heigth -1: autodetect height (set to postive value when using a vertical scrolling popup)
* \return a pointer to the new OBJECT tree
*/
OBJECT * gemtk_obj_create_popup_tree(const char **items, int nitems,
char * selected, bool horizontal,
int max_width, int max_height)
{
OBJECT * popup = NULL;
int box_width = 0;
int box_height = 0;
int char_width = 10;
int char_height = 16;
int item_height; // height of each item
assert(items != NULL);
item_height = char_height;
/* Allocate room for n items and the root G_BOX: */
popup = calloc(nitems+1, sizeof(OBJECT));
assert(popup != null);
for (int i=0; i<nitems; i++) {
int len = strlen(items[i]);
if (horizontal && (max_width<1)) {
box_width += (len * char_width)+4;
}
else if (!horizontal){
/* Detect max width, used for vertical rendering: */
if(len*char_width > box_width){
box_width = (len+2) * char_width;
}
//if (max_height < 1) {
box_height += item_height;
//}
}
}
if (max_width>0){
box_width = max_width;
}
if (horizontal) {
box_height = item_height;
}
else if(max_height > 0){
// TODO: validate max_height, shrink values larger than screen height
//box_height = max_height;
}
/*
printf("popup height: %d, popup width: %d\n", box_height, box_width);
*/
popup[0].ob_next = -1; /**< object's next sibling */
popup[0].ob_head = 1; /**< head of object's children */
popup[0].ob_tail = nitems; /**< tail of object's children */
popup[0].ob_type = G_BOX; /**< type of object */
popup[0].ob_flags = OF_FL3DBAK; /**< flags */
popup[0].ob_state = OS_NORMAL; /**< state */
popup[0].ob_spec.index = (long) 16650496L; /**< object-specific data */
popup[0].ob_x = 0; /**< upper left corner of object */
popup[0].ob_y = 0; /**< upper left corner of object */
popup[0].ob_width = box_width; /**< width of obj */
popup[0].ob_height = box_height;
/* Add items to popup: */
int xpos = 0, ypos = 0;
for (int i=0; i<nitems; i++) {
int state = OS_NORMAL;
int flags = OF_NONE;
int item_width;
char * string = calloc(1, strlen(items[i])+3);
snprintf(string, strlen(items[i])+3, " %s", items[i]);
if (selected != NULL) {
if (strcmp(selected, items[i]) == 0) {
state |= OS_CHECKED;
}
}
if (i == nitems-1) {
flags |= OF_LASTOB;
}
item_width = (horizontal) ? ((int)strlen(items[i])*char_width)+2 : box_width;
/*
printf("addin popup item \"%s\" (w: %d, h: %d, flags: %x) at %d/%d\n", items[i],
item_width, item_height, flags,
xpos, ypos);
*/
popup[i+1].ob_next = ((flags&OF_LASTOB) != 0) ? 0 : i+2; /**< object's next sibling */
popup[i+1].ob_head = -1; /**< head of object's children */
popup[i+1].ob_tail = -1; /**< tail of object's children */
popup[i+1].ob_type = G_STRING; /**< type of object */
popup[i+1].ob_flags = flags; /**< flags */
popup[i+1].ob_state = state; /**< state */
popup[i+1].ob_spec.free_string = string; /**< object-specific data */
popup[i+1].ob_x = xpos; /**< upper left corner of object */
popup[i+1].ob_y = ypos; /**< upper left corner of object */
popup[i+1].ob_width = item_width; /**< width of obj */
popup[i+1].ob_height = item_height;
if (horizontal) {
xpos += item_width;
}
else {
ypos += item_height;
}
}
return(popup);
}
/***
* Free memory of an OBJECT tree created with gemtk_obj_create_popup_tree.
*
* \param popup The tree to destroy
*/
void gemtk_obj_destroy_popup_tree(OBJECT * popup)
{
int i=0;
while (1) {
if (popup[i].ob_type == G_STRING) {
free(popup[i+1].ob_spec.free_string);
}
if((popup[i].ob_flags & OF_LASTOB) != OF_LASTOB){
break;
}
i++;
}
free(popup);
}