diff options
Diffstat (limited to 'riscos/treeview.c')
| -rw-r--r-- | riscos/treeview.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/riscos/treeview.c b/riscos/treeview.c index 91f0c19ab..cb184587d 100644 --- a/riscos/treeview.c +++ b/riscos/treeview.c @@ -99,6 +99,7 @@ static void ro_treeview_get_window_dimensions(int *width, int *height, void *pw); static void ro_treeview_redraw(wimp_draw *redraw); +static void ro_treeview_scroll(wimp_scroll *scroll); static void ro_treeview_redraw_loop(wimp_draw *redraw, ro_treeview *tv, osbool more); static void ro_treeview_open(wimp_open *open); @@ -192,6 +193,7 @@ ro_treeview *ro_treeview_create(wimp_w window, struct toolbar *toolbar, /* Register wimp events to handle the supplied window. */ ro_gui_wimp_event_register_redraw_window(tv->w, ro_treeview_redraw); + ro_gui_wimp_event_register_scroll_window(tv->w, ro_treeview_scroll); ro_gui_wimp_event_register_open_window(tv->w, ro_treeview_open); ro_gui_wimp_event_register_mouse_click(tv->w, ro_treeview_mouse_click); ro_gui_wimp_event_register_keypress(tv->w, ro_treeview_keypress); @@ -333,6 +335,7 @@ void ro_treeview_redraw_request(int x, int y, int width, int height, ro_treeview_redraw_loop(&update, tv, more); } } + /** * Pass RISC OS redraw events on to the treeview widget. * @@ -367,6 +370,65 @@ void ro_treeview_redraw(wimp_draw *redraw) } /** + * Handle scroll events in treeview windows. + * + * \param *scroll Pointer to Scroll Event block. + */ + +void ro_treeview_scroll(wimp_scroll *scroll) +{ + os_error *error; + int x = scroll->visible.x1 - scroll->visible.x0 - 32; + int y = scroll->visible.y1 - scroll->visible.y0 - 32; + struct toolbar *toolbar = ro_toolbar_parent_window_lookup(scroll->w); + + if (toolbar != NULL) + y -= ro_toolbar_full_height(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: + scroll->xscroll += (x * (scroll->xmin>>2)) >> 2; + 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: + scroll->yscroll += (y * (scroll->ymin>>2)) >> 2; + break; + } + + error = xwimp_open_window((wimp_open *) scroll); + if (error) { + LOG(("xwimp_open_window: 0x%x: %s", + error->errnum, error->errmess)); + } +} + +/** * Redraw a treeview window, once the initial readraw block has been collected. * * /param *redraw Pointer to redraw block. |