/* build stuff necessary for rotate dialogue */
static void rotate_update_dialogue(void)
{
error err;
int w,h;
int d;
int extent;
osbool mask;
os_mode mode;
int xeig,yeig;
os_box box;
int cx,cy;
int r;
/* ensure we have a thumbnail ready */
if (LOCALS.thumbnail == NULL)
if (thumbnail_create(LOCALS.image,
&GLOBALS.choices.drawable,
GLOBALS.choices.rotate.max_thumb,
&LOCALS.thumbnail))
return; /* failure */
/* read thumbnail details */
osspriteop_read_sprite_info(osspriteop_USER_AREA,
LOCALS.thumbnail,
(osspriteop_id) "thumbnail",
&w,&h,
&mask,
&mode);
/* convert dimensions to OS units */
read_mode_vars(mode, &xeig, &yeig, NULL);
w <<= xeig;
h <<= yeig;
/* get max dimension */
d = ((w > h) ? w : h) * 362 / 256; /* 1.41421356 is approx 362/256 */
/* enforce a minimum dimension so the buttons don't go outside the
* window bounds */
extent = (d < MIN_WIDTH) ? MIN_WIDTH : d;
box.x0 = 0;
box.y0 = -extent - BUTTON_HEIGHT;
box.x1 = extent;
box.y1 = 0;
window_set_submenu_extent(LOCALS.rotate_w, 15, &box);
/* cache values */
LOCALS.rotation = 0;
LOCALS.flags = 0;
LOCALS.extent = extent;
/* the box formed by extent squared may be bigger than required due to
* minimum size padding. centre our refresh area in this box. */
cx = extent / 2;
cy = -extent / 2;
r = d / 2;
LOCALS.redraw_area.x0 = cx - r;
LOCALS.redraw_area.y0 = cy - r;
LOCALS.redraw_area.x1 = cx + r;
LOCALS.redraw_area.y1 = cy + r;
/* adjust button positions */
shift_buttons(&box);
if (LOCALS.trans_tab)
{
free(LOCALS.trans_tab);
LOCALS.trans_tab = NULL;
}
err = make_trans_tab(LOCALS.thumbnail,
(osspriteop_id) "thumbnail",
&LOCALS.trans_tab);
if (err)
goto Failure;
if (LOCALS.indicator.trans_tab)
{
free(LOCALS.indicator.trans_tab);
LOCALS.indicator.trans_tab = NULL;
}
err = make_trans_tab((osspriteop_area *) window_get_sprite_area(),
(osspriteop_id) "rt-0",
&LOCALS.indicator.trans_tab);
if (err)
goto Failure;
/* must now refresh indicator and thumbnail */
wimp_force_redraw(LOCALS.rotate_w, 0, -extent, extent, 0);
return;
Failure:
thumbnail_destroy(&LOCALS.thumbnail);
if (LOCALS.trans_tab)
{
free(LOCALS.trans_tab);
LOCALS.trans_tab = NULL;
}
if (LOCALS.indicator.trans_tab)
{
free(LOCALS.indicator.trans_tab);
LOCALS.indicator.trans_tab = NULL;
}
return;
}
static bool browser_window_history__redraw_entry(struct history *history,
struct history_entry *entry,
int x0, int y0, int x1, int y1,
int x, int y, bool clip,
const struct redraw_context *ctx)
{
const struct plotter_table *plot = ctx->plot;
size_t char_offset;
int actual_x;
struct history_entry *child;
colour c = entry == history->current ?
HISTORY_COLOUR_SELECTED : HISTORY_COLOUR_FOREGROUND;
int tailsize = 5;
int xoffset = x - x0;
int yoffset = y - y0;
plot_style_t pstyle_history_rect = {
.stroke_type = PLOT_OP_TYPE_SOLID,
.stroke_colour = c,
.stroke_width = entry == history->current ? 3 : 1,
};
plot_font_style_t fstyle = *plot_style_font;
if (clip) {
struct rect rect;
rect.x0 = x0 + xoffset;
rect.y0 = y0 + yoffset;
rect.x1 = x1 + xoffset;
rect.y1 = y1 + yoffset;
if(!plot->clip(&rect))
return false;
}
if (!plot->bitmap(entry->x + xoffset, entry->y + yoffset, WIDTH, HEIGHT,
entry->bitmap, 0xffffff, 0))
return false;
if (!plot->rectangle(entry->x - 1 + xoffset,
entry->y - 1 + yoffset,
entry->x + xoffset + WIDTH,
entry->y + yoffset + HEIGHT,
&pstyle_history_rect))
return false;
if (!nsfont.font_position_in_string(plot_style_font, entry->page.title,
strlen(entry->page.title), WIDTH,
&char_offset, &actual_x))
return false;
fstyle.background = HISTORY_COLOUR_BACKGROUND;
fstyle.foreground = c;
fstyle.weight = entry == history->current ? 900 : 400;
if (!plot->text(entry->x + xoffset, entry->y + HEIGHT + 12 + yoffset,
entry->page.title, char_offset, &fstyle))
return false;
for (child = entry->forward; child; child = child->next) {
if (!plot->line(entry->x + WIDTH + xoffset,
entry->y + HEIGHT / 2 + yoffset,
entry->x + WIDTH + tailsize + xoffset,
entry->y + HEIGHT / 2 + yoffset,
plot_style_stroke_history))
return false;
if (!plot->line(entry->x + WIDTH + tailsize + xoffset,
entry->y + HEIGHT / 2 + yoffset,
child->x - tailsize +xoffset,
child->y + HEIGHT / 2 + yoffset,
plot_style_stroke_history))
return false;
if (!plot->line(child->x - tailsize + xoffset,
child->y + HEIGHT / 2 + yoffset,
child->x + xoffset, child->y +
HEIGHT / 2 + yoffset,
plot_style_stroke_history))
return false;
if (!browser_window_history__redraw_entry(history, child,
x0, y0, x1, y1, x, y, clip, ctx))
return false;
}
return true;
}
/**
* Find the history entry at a position.
*
* \param entry entry to search from
* \param x coordinate
* \param y coordinate
* \return an entry if found, 0 if none
*/
static struct history_entry *browser_window_history__find_position(
struct history_entry *entry, int x, int y)
{
struct history_entry *child;
struct history_entry *found;
if (!entry)
return 0;
if (entry->x <= x && x <= entry->x + WIDTH &&
entry->y <= y && y <= entry->y + HEIGHT)
return entry;
for (child = entry->forward; child; child = child->next) {
found = browser_window_history__find_position(child, x, y);
if (found)
return found;
}
return 0;
}
/**
* Enumerate subentries in history
* See also history_enumerate()
*
* \param bw The browser window to enumerate history of
* \param entry entry to start enumeration at
* \param cb callback function
* \param ud context pointer passed to cb
* \return true to continue enumeration, false to cancel
*/
static bool browser_window_history__enumerate_entry(
const struct browser_window *bw,
const struct history_entry *entry,
browser_window_history_enumerate_cb cb,
void *ud)
{
const struct history_entry *child;
if (!cb(bw, entry->x, entry->y,
entry->x + WIDTH, entry->y + HEIGHT,
entry, ud))
return false;
for (child = entry->forward; child; child = child->next) {
if (!browser_window_history__enumerate_entry(bw, child,
cb, ud))
return false;
}
return true;
}
/* -------------------------------------------------------------------------- */
/**
* Create a new history tree for a browser window window.
*
* \param bw browser window to create history for.
*
* \return NSERROR_OK or appropriate error otherwise
*/
nserror browser_window_history_create(struct browser_window *bw)
{
struct history *history;
bw->history = NULL;
history = calloc(1, sizeof *history);
if (!history) {
warn_user("NoMemory", 0);
return NSERROR_NOMEM;
}
history->width = RIGHT_MARGIN / 2;
history->height = BOTTOM_MARGIN / 2;
bw->history = history;
return NSERROR_OK;
}
/**
* Clone a bw's history tree for new bw
*
* \param existing browser window with history to clone.
* \param clone browser window to make cloned history for.
*
* \return NSERROR_OK or appropriate error otherwise
*/
nserror browser_window_history_clone(const struct browser_window *existing,
struct browser_window *clone)
{
struct history *new_history;
clone->history = NULL;
if (existing == NULL || existing->history == NULL ||
existing->history->start == NULL)
/* Nothing to clone, create new history for clone window */
return browser_window_history_create(clone);
/* Make cloned history */
new_history = malloc(sizeof *new_history);
if (!new_history)
return NSERROR_NOMEM;
clone->history = new_history;
memcpy(new_history, existing->history, sizeof *new_history);
new_history->start = browser_window_history__clone_entry(new_history,
new_history->start);
if (!new_history->start) {
LOG(("Insufficient memory to clone history"));
warn_user("NoMemory", 0);
browser_window_history_destroy(clone);
clone->history = NULL;
return NSERROR_NOMEM;
}
return NSERROR_OK;
}
/**
* Insert a url into the history tree.
*
* \param bw browser window with history object
* \param content content to add to history
* \param frag_id fragment identifier, or NULL.
*
* The page is added after the current entry and becomes current.
*/
void browser_window_history_add(struct browser_window *bw,
struct hlcache_handle *content, lwc_string *frag_id)
{
struct history *history;
struct history_entry *entry;
nsurl *nsurl = hlcache_handle_get_url(content);
char *title;
struct bitmap *bitmap;
assert(bw);
assert(bw->history);
assert(content);
history = bw->history;
/* allocate space */
entry = malloc(sizeof *entry);
if (entry == NULL)
return;
title = strdup(content_get_title(content));
if (title == NULL) {
warn_user("NoMemory", 0);
free(entry);
return;
}
entry->page.url = nsurl_ref(nsurl);
entry->page.frag_id = frag_id ? lwc_string_ref(frag_id) : 0;
entry->page.title = title;
entry->back = history->current;
entry->next = 0;
entry->forward = entry->forward_pref = entry->forward_last = 0;
entry->children = 0;
entry->bitmap = 0;
if (history->current) {
if (history->current->forward_last)
history->current->forward_last->next = entry;
else
history->current->forward = entry;
history->current->forward_pref = entry;
history->current->forward_last = entry;
history->current->children++;
} else {
history->start = entry;
}
history->current = entry;
/* if we have a thumbnail, don't update until the page has finished
* loading */
bitmap = urldb_get_thumbnail(nsurl);
if (!bitmap) {
LOG(("Creating thumbnail for %s", nsurl_access(nsurl)));
bitmap = bitmap_create(WIDTH, HEIGHT,
BITMAP_NEW | BITMAP_CLEAR_MEMORY |
BITMAP_OPAQUE);
if (!bitmap) {
warn_user("NoMemory", 0);
return;
}
if (thumbnail_create(content, bitmap, nsurl) == false) {
/* Thumbnailing failed. Ignore it silently */
bitmap_destroy(bitmap);
bitmap = NULL;
}
}
entry->bitmap = bitmap;
browser_window_history__layout(history);
}
/**
* Update the thumbnail for the current entry.
*
* \param history opaque history structure, as returned by history_create()
* \param content content for current entry
*/
void browser_window_history_update(struct browser_window *bw,
struct hlcache_handle *content)
{
struct history *history;
char *title;
assert(bw != NULL);
history = bw->history;
if (!history || !history->current || !history->current->bitmap)
return;
assert(history->current->page.url);
assert(history->current->page.title);
title = strdup(content_get_title(content));
if (!title) {
warn_user("NoMemory", 0);
return;
}
assert(title);
free(history->current->page.title);
history->current->page.title = title;
thumbnail_create(content, history->current->bitmap, NULL);
}
/**
* Free a history structure.
*
* \param history opaque history structure, as returned by history_create()
*/
void browser_window_history_destroy(struct browser_window *bw)
{
assert(bw != NULL);
if (bw->history == NULL)
return;
browser_window_history__free_entry(bw->history->start);
free(bw->history);
bw->history = NULL;
}
