| 0,0 → 1,619 |
|---|
| /* |
| * Copyright 2010 Vincent Sanders <vince@simtec.co.uk> |
| * |
| * Framebuffer windowing toolkit scrollbar widgets |
| * |
| * 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/>. |
| */ |
| |
| |
| #include <stdbool.h> |
| |
| #include <libnsfb.h> |
| #include <libnsfb_plot.h> |
| #include <libnsfb_event.h> |
| #include <libnsfb_cursor.h> |
| |
| #include "utils/log.h" |
| #include "desktop/browser.h" |
| |
| #include "framebuffer/gui.h" |
| #include "framebuffer/fbtk.h" |
| #include "framebuffer/image_data.h" |
| |
| |
| |
| #include "utils/log.h" |
| #include <menuet/os.h> |
| |
| #include "widget.h" |
| |
| /* Vertical scroll widget */ |
| |
| static int |
| vscroll_redraw(fbtk_widget_t *widget, fbtk_callback_info *cbi) |
| { |
| LOG(("REDRAW SCROLL")); |
| //__menuet__debug_out("REDRAW SCROLL"); |
| int vscroll; |
| int vpos; |
| |
| nsfb_bbox_t bbox; |
| nsfb_bbox_t rect; |
| |
| LOG(("REDRAW SCROLL get rooot")); |
| //__menuet__debug_out("REDRAW SCROLL get root"); |
| fbtk_widget_t *root = fbtk_get_root_widget(widget); |
| |
| |
| LOG(("REDRAW SCROLL get bbox")); |
| //__menuet__debug_out("REDRAW SCROLL get bbox"); |
| fbtk_get_bbox(widget, &bbox); |
| |
| LOG(("REDRAW SCROLL claim")); |
| //__menuet__debug_out("REDRAW SCROLL claim"); |
| nsfb_claim(root->u.root.fb, &bbox); |
| |
| rect = bbox; |
| |
| /* background */ |
| //STUB |
| |
| nsfb_plot_rectangle_fill(root->u.root.fb, &rect, widget->bg); |
| |
| /* scroll well */ |
| rect.x0 = bbox.x0 + 2; |
| rect.y0 = bbox.y0 + 1; |
| rect.x1 = bbox.x1 - 3; |
| rect.y1 = bbox.y1 - 2; |
| |
| |
| //STUB!!! |
| nsfb_plot_rectangle_fill(root->u.root.fb, &rect, widget->fg); |
| nsfb_plot_rectangle(root->u.root.fb, &rect, 1, 0xFF999999, false, false); |
| |
| LOG(("REDRAW SCROLL widg")); |
| //__menuet__debug_out("REDRAW SCROLL widg"); |
| |
| /* scroll bar */ |
| if ((widget->u.scroll.maximum - widget->u.scroll.minimum) > 0) { |
| vscroll = ((widget->height - 4) * widget->u.scroll.thumb) / |
| (widget->u.scroll.maximum - widget->u.scroll.minimum) ; |
| vpos = ((widget->height - 4) * widget->u.scroll.position) / |
| (widget->u.scroll.maximum - widget->u.scroll.minimum) ; |
| } else { |
| vscroll = (widget->height - 4); |
| vpos = 0; |
| } |
| |
| rect.x0 = bbox.x0 + 5; |
| rect.y0 = bbox.y0 + 3 + vpos; |
| rect.x1 = bbox.x0 + widget->width - 5; |
| rect.y1 = bbox.y0 + vscroll + vpos; |
| |
| //STUB!!! |
| nsfb_plot_rectangle_fill(root->u.root.fb, &rect, widget->bg); |
| |
| LOG(("REDRAW SCROLL upd")); |
| //__menuet__debug_out("RED upd"); |
| |
| //STUB |
| nsfb_update(root->u.root.fb, &bbox); //&bbox |
| |
| return 0; |
| } |
| |
| static int |
| vscroll_drag(fbtk_widget_t *widget, fbtk_callback_info *cbi) |
| { |
| |
| LOG(("REDRAG SCROLL")); |
| //__menuet__debug_out("REDRAG SCROLL"); |
| int newpos; |
| fbtk_widget_t *scrollw = cbi->context; |
| |
| newpos = ((widget->u.scroll.drag_position + |
| (cbi->y - widget->u.scroll.drag)) * |
| (widget->u.scroll.maximum - widget->u.scroll.minimum)) / |
| (widget->height - 4); |
| |
| if (newpos < scrollw->u.scroll.minimum) |
| newpos = scrollw->u.scroll.minimum; |
| |
| if (newpos > (scrollw->u.scroll.maximum - scrollw->u.scroll.thumb )) |
| newpos = (scrollw->u.scroll.maximum - scrollw->u.scroll.thumb); |
| |
| if (newpos == scrollw->u.scroll.position) |
| return 0; |
| |
| return fbtk_post_callback(widget, FBTK_CBT_SCROLLY, newpos); |
| } |
| |
| static int |
| vscrollu_click(fbtk_widget_t *widget, fbtk_callback_info *cbi) |
| { |
| |
| LOG(("REDRAW Ck SCROLL")); |
| //__menuet__debug_out("REDRAW Ck SCROLL"); |
| int newpos; |
| fbtk_widget_t *scrollw = cbi->context; |
| |
| if (cbi->event->type != NSFB_EVENT_KEY_DOWN) |
| return 0; |
| |
| newpos = scrollw->u.scroll.position - scrollw->u.scroll.page; |
| if (newpos < scrollw->u.scroll.minimum) |
| newpos = scrollw->u.scroll.minimum; |
| |
| if (newpos == scrollw->u.scroll.position) |
| return 0; |
| |
| return fbtk_post_callback(scrollw, FBTK_CBT_SCROLLY, newpos); |
| } |
| |
| static int |
| vscrolld_click(fbtk_widget_t *widget, fbtk_callback_info *cbi) |
| { |
| |
| LOG(("REDRAW SCROLL 2")); |
| //__menuet__debug_out("REDRAW SCROLL 2"); |
| int newpos; |
| fbtk_widget_t *scrollw = cbi->context; |
| |
| if (cbi->event->type != NSFB_EVENT_KEY_DOWN) |
| return 0; |
| |
| newpos = scrollw->u.scroll.position + scrollw->u.scroll.page; |
| if (newpos > (scrollw->u.scroll.maximum - scrollw->u.scroll.thumb )) |
| newpos = (scrollw->u.scroll.maximum - scrollw->u.scroll.thumb); |
| |
| if (newpos == scrollw->u.scroll.position) |
| return 0; |
| |
| return fbtk_post_callback(scrollw, FBTK_CBT_SCROLLY, newpos); |
| } |
| |
| static int |
| vscrollarea_click(fbtk_widget_t *widget, fbtk_callback_info *cbi) |
| { |
| LOG(("REDRAW SCROLL 3")); |
| //__menuet__debug_out("REDRAW SCROLL 3"); |
| int vscroll; |
| int vpos; |
| int newpos; |
| int ret = 0; |
| |
| if (cbi->event->type != NSFB_EVENT_KEY_DOWN) { |
| /* end all drags, just in case */ |
| if (fbtk_set_handler(widget, FBTK_CBT_POINTERMOVE, NULL, NULL) != NULL) |
| fbtk_tgrab_pointer(widget); |
| return 0; |
| } |
| |
| switch (cbi->event->value.keycode) { |
| |
| case NSFB_KEY_MOUSE_4: |
| /* scroll up */ |
| newpos = widget->u.scroll.position - widget->u.scroll.page; |
| if (newpos < widget->u.scroll.minimum) |
| newpos = widget->u.scroll.minimum; |
| ret = fbtk_post_callback(cbi->context, FBTK_CBT_SCROLLY, newpos); |
| break; |
| |
| case NSFB_KEY_MOUSE_5: |
| /* scroll down */ |
| newpos = widget->u.scroll.position + widget->u.scroll.page; |
| if (newpos > widget->u.scroll.maximum) |
| newpos = widget->u.scroll.maximum; |
| ret = fbtk_post_callback(cbi->context, FBTK_CBT_SCROLLY, newpos); |
| break; |
| |
| default: |
| |
| if ((widget->u.scroll.maximum - widget->u.scroll.minimum) > 0) { |
| vscroll = ((widget->height - 4) * widget->u.scroll.thumb) / |
| (widget->u.scroll.maximum - widget->u.scroll.minimum) ; |
| vpos = ((widget->height - 4) * widget->u.scroll.position) / |
| (widget->u.scroll.maximum - widget->u.scroll.minimum) ; |
| } else { |
| vscroll = (widget->height - 4); |
| vpos = 0; |
| } |
| |
| if (cbi->y < vpos) { |
| /* above bar */ |
| newpos = widget->u.scroll.position - widget->u.scroll.thumb; |
| if (newpos < widget->u.scroll.minimum) |
| newpos = widget->u.scroll.minimum; |
| ret = fbtk_post_callback(cbi->context, FBTK_CBT_SCROLLY, newpos); |
| } else if (cbi->y > (vpos + vscroll)) { |
| /* below bar */ |
| newpos = widget->u.scroll.position + widget->u.scroll.thumb; |
| if (newpos > widget->u.scroll.maximum) |
| newpos = widget->u.scroll.maximum; |
| ret = fbtk_post_callback(cbi->context, FBTK_CBT_SCROLLY, newpos); |
| } else { |
| /* on bar - start drag */ |
| widget->u.scroll.drag = cbi->y; |
| widget->u.scroll.drag_position = vpos; |
| fbtk_set_handler(widget, FBTK_CBT_POINTERMOVE, vscroll_drag, widget); |
| fbtk_tgrab_pointer(widget); |
| } |
| } |
| return ret; |
| } |
| |
| |
| /* exported function documented in fbtk.h */ |
| fbtk_widget_t * |
| fbtk_create_vscroll(fbtk_widget_t *parent, |
| int x, |
| int y, |
| int width, |
| int height, |
| colour fg, |
| colour bg, |
| fbtk_callback callback, |
| void *context) |
| { |
| |
| LOG(("REDRAW SCROLL 4")); |
| //__menuet__debug_out("REDRAW SCROLL 4"); |
| fbtk_widget_t *neww; |
| |
| neww = fbtk_widget_new(parent, |
| FB_WIDGET_TYPE_VSCROLL, |
| x, |
| y + scrollu.height, |
| width, |
| height - scrollu.height - scrolld.height); |
| |
| neww->fg = fg; |
| neww->bg = bg; |
| neww->mapped = true; |
| |
| fbtk_set_handler(neww, FBTK_CBT_REDRAW, vscroll_redraw, NULL); |
| |
| fbtk_set_handler(neww, FBTK_CBT_CLICK, vscrollarea_click, neww); |
| |
| fbtk_set_handler(neww, FBTK_CBT_SCROLLY, callback, context); |
| |
| neww->u.scroll.btnul = fbtk_create_button(parent, |
| x, |
| y, |
| width, |
| scrollu.height, |
| fg, |
| &scrollu, |
| vscrollu_click, |
| neww); |
| |
| neww->u.scroll.btndr = fbtk_create_button(parent, |
| x, |
| y + height - scrolld.height, |
| width, |
| scrolld.height, |
| fg, |
| &scrolld, |
| vscrolld_click, |
| neww); |
| |
| |
| return neww; |
| } |
| |
| /* Horizontal scroll widget */ |
| |
| static int |
| hscroll_redraw(fbtk_widget_t *widget, fbtk_callback_info *cbi) |
| { |
| |
| LOG(("REDRAW SCROLL 5")); |
| //__menuet__debug_out("REDRAW SCROLL 5"); |
| int hscroll; |
| int hpos; |
| nsfb_bbox_t bbox; |
| nsfb_bbox_t rect; |
| fbtk_widget_t *root = fbtk_get_root_widget(widget); |
| |
| fbtk_get_bbox(widget, &bbox); |
| |
| nsfb_claim(root->u.root.fb, &bbox); |
| |
| rect = bbox; |
| |
| /* background */ |
| |
| //STUB |
| nsfb_plot_rectangle_fill(root->u.root.fb, &rect, widget->bg); |
| |
| /* scroll well */ |
| rect.x0 = bbox.x0 + 1; |
| rect.y0 = bbox.y0 + 2; |
| rect.x1 = bbox.x1 - 2; |
| rect.y1 = bbox.y1 - 3; |
| |
| //STUB |
| nsfb_plot_rectangle_fill(root->u.root.fb, &rect, widget->fg); |
| |
| /* scroll well outline */ |
| //STUB |
| nsfb_plot_rectangle(root->u.root.fb, &rect, 1, 0xFF999999, false, false); |
| |
| if ((widget->u.scroll.maximum - widget->u.scroll.minimum) > 0) { |
| hscroll = ((widget->width - 4) * widget->u.scroll.thumb) / |
| (widget->u.scroll.maximum - widget->u.scroll.minimum) ; |
| hpos = ((widget->width - 4) * widget->u.scroll.position) / |
| (widget->u.scroll.maximum - widget->u.scroll.minimum) ; |
| } else { |
| hscroll = (widget->width - 4); |
| hpos = 0; |
| } |
| |
| LOG(("hscroll %d", hscroll)); |
| |
| rect.x0 = bbox.x0 + 3 + hpos; |
| rect.y0 = bbox.y0 + 5; |
| rect.x1 = bbox.x0 + hscroll + hpos; |
| rect.y1 = bbox.y0 + widget->height - 5; |
| |
| |
| //STUB |
| nsfb_plot_rectangle_fill(root->u.root.fb, &rect, widget->bg); |
| |
| nsfb_update(root->u.root.fb, &bbox); |
| |
| return 0; |
| } |
| |
| static int |
| hscrolll_click(fbtk_widget_t *widget, fbtk_callback_info *cbi) |
| { |
| |
| LOG(("REDRAW SCROLL 6")); |
| //__menuet__debug_out("REDRAW SCROLL 6"); |
| int newpos; |
| fbtk_widget_t *scrollw = cbi->context; |
| |
| if (cbi->event->type != NSFB_EVENT_KEY_DOWN) |
| return 0; |
| |
| newpos = scrollw->u.scroll.position - scrollw->u.scroll.page; |
| if (newpos < scrollw->u.scroll.minimum) |
| newpos = scrollw->u.scroll.minimum; |
| |
| if (newpos == scrollw->u.scroll.position) { |
| LOG(("horiz scroll was the same %d", newpos)); |
| return 0; |
| } |
| |
| return fbtk_post_callback(scrollw, FBTK_CBT_SCROLLX, newpos); |
| } |
| |
| static int |
| hscrollr_click(fbtk_widget_t *widget, fbtk_callback_info *cbi) |
| { |
| |
| LOG(("REDRAW SCROLL 7")); |
| //__menuet__debug_out("REDRAW SCROLL 7"); |
| int newpos; |
| fbtk_widget_t *scrollw = cbi->context; |
| |
| if (cbi->event->type != NSFB_EVENT_KEY_DOWN) |
| return 0; |
| |
| newpos = scrollw->u.scroll.position + scrollw->u.scroll.page; |
| if (newpos > (scrollw->u.scroll.maximum - scrollw->u.scroll.thumb )) |
| newpos = (scrollw->u.scroll.maximum - scrollw->u.scroll.thumb); |
| |
| if (newpos == scrollw->u.scroll.position) |
| return 0; |
| |
| return fbtk_post_callback(scrollw, FBTK_CBT_SCROLLX, newpos); |
| } |
| |
| static int |
| hscroll_drag(fbtk_widget_t *widget, fbtk_callback_info *cbi) |
| { |
| |
| LOG(("REDRAW SCROLL 8")); |
| //__menuet__debug_out("REDRAW SCROLL 8"); |
| int newpos; |
| fbtk_widget_t *scrollw = cbi->context; |
| |
| newpos = ((widget->u.scroll.drag_position + |
| (cbi->x - widget->u.scroll.drag)) * |
| (widget->u.scroll.maximum - widget->u.scroll.minimum)) / |
| (widget->width - 4); |
| |
| if (newpos < scrollw->u.scroll.minimum) |
| newpos = scrollw->u.scroll.minimum; |
| |
| if (newpos > (scrollw->u.scroll.maximum - scrollw->u.scroll.thumb )) |
| newpos = (scrollw->u.scroll.maximum - scrollw->u.scroll.thumb); |
| |
| if (newpos == scrollw->u.scroll.position) |
| return 0; |
| |
| return fbtk_post_callback(widget, FBTK_CBT_SCROLLX, newpos); |
| } |
| |
| static int |
| hscrollarea_click(fbtk_widget_t *widget, fbtk_callback_info *cbi) |
| { |
| |
| LOG(("REDRAW SCROLL 9")); |
| //__menuet__debug_out("REDRAW SCROLL 9"); |
| int hscroll; |
| int hpos; |
| int newpos; |
| int ret = 0; |
| |
| if (cbi->event->type != NSFB_EVENT_KEY_DOWN) { |
| /* end all drags, just in case */ |
| if (fbtk_set_handler(widget, FBTK_CBT_POINTERMOVE, NULL, NULL) != NULL) |
| fbtk_tgrab_pointer(widget); |
| return 0; |
| } |
| |
| if ((widget->u.scroll.maximum - widget->u.scroll.minimum) > 0) { |
| hscroll = ((widget->width - 4) * widget->u.scroll.thumb) / |
| (widget->u.scroll.maximum - widget->u.scroll.minimum) ; |
| hpos = ((widget->width - 4) * widget->u.scroll.position) / |
| (widget->u.scroll.maximum - widget->u.scroll.minimum) ; |
| } else { |
| hscroll = (widget->width - 4); |
| hpos = 0; |
| } |
| |
| if (cbi->x < hpos) { |
| /* left of bar */ |
| newpos = widget->u.scroll.position - widget->u.scroll.page; |
| if (newpos < widget->u.scroll.minimum) |
| newpos = widget->u.scroll.minimum; |
| ret = fbtk_post_callback(cbi->context, FBTK_CBT_SCROLLX, newpos); |
| } else if (cbi->x > (hpos + hscroll)) { |
| /* right of bar */ |
| newpos = widget->u.scroll.position + widget->u.scroll.page; |
| if (newpos > widget->u.scroll.maximum) |
| newpos = widget->u.scroll.maximum; |
| ret = fbtk_post_callback(cbi->context, FBTK_CBT_SCROLLX, newpos); |
| } else { |
| /* on bar - start drag */ |
| widget->u.scroll.drag = cbi->x; |
| widget->u.scroll.drag_position = hpos; |
| fbtk_set_handler(widget, FBTK_CBT_POINTERMOVE, hscroll_drag, widget); |
| fbtk_tgrab_pointer(widget); |
| } |
| return ret; |
| } |
| |
| /* exported function documented in fbtk.h */ |
| fbtk_widget_t * |
| fbtk_create_hscroll(fbtk_widget_t *parent, |
| int x, |
| int y, |
| int width, |
| int height, |
| colour fg, |
| colour bg, |
| fbtk_callback callback, |
| void *context) |
| { |
| |
| LOG(("REDRAW SCROLL 10")); |
| //__menuet__debug_out("REDRAW SCROLL 10"); |
| fbtk_widget_t *neww; |
| |
| neww = fbtk_widget_new(parent, |
| FB_WIDGET_TYPE_HSCROLL, |
| x + scrolll.width, |
| y, |
| width - scrolll.width - scrollr.width, |
| height); |
| |
| neww->fg = fg; |
| neww->bg = bg; |
| neww->mapped = true; |
| |
| fbtk_set_handler(neww, FBTK_CBT_REDRAW, hscroll_redraw, NULL); |
| fbtk_set_handler(neww, FBTK_CBT_CLICK, hscrollarea_click, neww); |
| fbtk_set_handler(neww, FBTK_CBT_SCROLLX, callback, context); |
| |
| neww->u.scroll.btnul = fbtk_create_button(parent, |
| x, |
| y, |
| scrolll.width, |
| height, |
| fg, |
| &scrolll, |
| hscrolll_click, |
| neww); |
| |
| neww->u.scroll.btndr = fbtk_create_button(parent, |
| x + width - scrollr.width, |
| y, |
| scrollr.width, |
| height, |
| fg, |
| &scrollr, |
| hscrollr_click, |
| neww); |
| |
| return neww; |
| } |
| |
| |
| /* exported function documented in fbtk.h */ |
| bool |
| fbtk_set_scroll_parameters(fbtk_widget_t *widget, |
| int min, |
| int max, |
| int thumb, |
| int page) |
| { |
| LOG(("REDRAW SCROLL 11")); |
| //__menuet__debug_out("REDRAW SCROLL 11"); |
| if (widget == NULL) |
| return false; |
| |
| if ((widget->type != FB_WIDGET_TYPE_HSCROLL) && |
| (widget->type != FB_WIDGET_TYPE_VSCROLL)) |
| return false; |
| |
| widget->u.scroll.minimum = min; |
| widget->u.scroll.maximum = max; |
| widget->u.scroll.thumb = thumb; |
| widget->u.scroll.page = page; |
| |
| if (widget->u.scroll.position > max) |
| widget->u.scroll.position = max; |
| if (widget->u.scroll.position < min) |
| widget->u.scroll.position = min; |
| |
| fbtk_request_redraw(widget); |
| |
| return true; |
| } |
| |
| /* exported function documented in fbtk.h */ |
| bool |
| fbtk_set_scroll_position(fbtk_widget_t *widget, int position) |
| { |
| LOG(("REDRAW SCROLL 12")); |
| //__menuet__debug_out("REDRAW SCROLL 12"); |
| if (widget == NULL) |
| return false; |
| |
| if ((widget->type != FB_WIDGET_TYPE_HSCROLL) && |
| (widget->type != FB_WIDGET_TYPE_VSCROLL)) |
| return false; |
| |
| if ((position < widget->u.scroll.minimum) || |
| (position > widget->u.scroll.maximum)) |
| return false; |
| |
| widget->u.scroll.position = position; |
| |
| fbtk_request_redraw(widget); |
| |
| return true; |
| } |
| |
| /* |
| * Local Variables: |
| * c-basic-offset:8 |
| * End: |
| */ |