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Zoom using shift-scrollwheel

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svn path=/trunk/netsurf/; revision=4289
This commit is contained in:
Adrian Lees 2008-06-07 00:50:15 +00:00
parent 6168417b80
commit 461e520077
1 changed files with 59 additions and 39 deletions
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98
riscos/window.c
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@ -2630,49 +2630,69 @@ bool ro_gui_window_keypress(wimp_key *key)
*/
void ro_gui_scroll_request(wimp_scroll *scroll)
{
int x, y;
struct gui_window *g = ro_gui_window_lookup(scroll->w);
x = scroll->visible.x1 - scroll->visible.x0 - 32;
y = scroll->visible.y1 - scroll->visible.y0 - 32;
if (g && g->toolbar)
y -= ro_gui_theme_toolbar_full_height(g->toolbar);
if (g && ro_gui_shift_pressed() && g->bw->current_content) {
float scale;
if (scroll->ymin > 0) {
scale = g->bw->scale + 0.02;
if (scale > scale_snap_to[SCALE_SNAP_TO_SIZE - 1])
scale = scale_snap_to[SCALE_SNAP_TO_SIZE - 1];
} else {
scale = g->bw->scale - 0.02;
if (scale < scale_snap_to[0])
scale = scale_snap_to[0];
}
if (g->bw->scale != scale)
browser_window_set_scale(g->bw, scale, true);
} else {
int x = scroll->visible.x1 - scroll->visible.x0 - 32;
int y = scroll->visible.y1 - scroll->visible.y0 - 32;
os_error *error;
switch (scroll->xmin) {
case wimp_SCROLL_PAGE_LEFT:
scroll->xscroll -= x;
break;
case wimp_SCROLL_COLUMN_LEFT:
scroll->xscroll -= 32;
break;
case wimp_SCROLL_COLUMN_RIGHT:
scroll->xscroll += 32;
break;
case wimp_SCROLL_PAGE_RIGHT:
scroll->xscroll += x;
break;
default:
break;
if (g && g->toolbar)
y -= ro_gui_theme_toolbar_full_height(g->toolbar);
switch (scroll->xmin) {
case wimp_SCROLL_PAGE_LEFT:
scroll->xscroll -= x;
break;
case wimp_SCROLL_COLUMN_LEFT:
scroll->xscroll -= 32;
break;
case wimp_SCROLL_COLUMN_RIGHT:
scroll->xscroll += 32;
break;
case wimp_SCROLL_PAGE_RIGHT:
scroll->xscroll += x;
break;
default:
break;
}
switch (scroll->ymin) {
case wimp_SCROLL_PAGE_UP:
scroll->yscroll += y;
break;
case wimp_SCROLL_LINE_UP:
scroll->yscroll += 32;
break;
case wimp_SCROLL_LINE_DOWN:
scroll->yscroll -= 32;
break;
case wimp_SCROLL_PAGE_DOWN:
scroll->yscroll -= y;
break;
default:
break;
}
error = xwimp_open_window((wimp_open *) scroll);
if (error) {
LOG(("xwimp_open_window: 0x%x: %s",
error->errnum, error->errmess));
}
}
switch (scroll->ymin) {
case wimp_SCROLL_PAGE_UP:
scroll->yscroll += y;
break;
case wimp_SCROLL_LINE_UP:
scroll->yscroll += 32;
break;
case wimp_SCROLL_LINE_DOWN:
scroll->yscroll -= 32;
break;
case wimp_SCROLL_PAGE_DOWN:
scroll->yscroll -= y;
break;
default:
break;
}
wimp_open_window((wimp_open *) scroll);
}