diff options
Diffstat (limited to 'frontends/kolibrios/fb/fbtk/fbtk.c')
| -rw-r--r-- | frontends/kolibrios/fb/fbtk/fbtk.c | 830 |
1 files changed, 0 insertions, 830 deletions
diff --git a/frontends/kolibrios/fb/fbtk/fbtk.c b/frontends/kolibrios/fb/fbtk/fbtk.c deleted file mode 100644 index 5d1f25ac9..000000000 --- a/frontends/kolibrios/fb/fbtk/fbtk.c +++ /dev/null @@ -1,830 +0,0 @@ -/* - * Copyright 2008,2010 Vincent Sanders <vince@simtec.co.uk> - * - * Framebuffer windowing toolkit core. - * - * 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 <stdlib.h> -#include <sys/types.h> -#include <assert.h> -#include <stdint.h> -#include <string.h> -#include <stdbool.h> -#include <stdarg.h> - -#include <libnsfb.h> -#include <libnsfb_plot.h> -#include <libnsfb_plot_util.h> -#include <libnsfb_event.h> -#include <libnsfb_cursor.h> - -#include "utils/utils.h" -#include "utils/log.h" -#include "netsurf/browser_window.h" -#include "netsurf/plotters.h" - -#include "kolibrios/fb/gui.h" -#include "kolibrios/fb/fbtk.h" -#include "kolibrios/fb/image_data.h" - -#include "widget.h" - -#ifdef FBTK_LOGGING - -/* tree dump debug, also example of depth first tree walk */ -static void -dump_tk_tree(fbtk_widget_t *widget) -{ - widget = fbtk_get_root_widget(widget); - int indent = 0; - - while (widget != NULL) { - LOG("%*s%p", indent, "", widget); - if (widget->first_child != NULL) { - widget = widget->first_child; - indent += 6; - } else if (widget->next != NULL) { - widget = widget->next; - } else { - while ((widget->parent != NULL) && - (widget->parent->next == NULL)) { - widget = widget->parent; - indent -= 6; - } - if (widget->parent != NULL) { - indent -= 6; - widget = widget->parent->next; - } else { - widget = NULL; - } - } - } -} - -#endif - -/* exported function documented in fbtk.h */ -void -fbtk_request_redraw(fbtk_widget_t *widget) -{ - fbtk_widget_t *cwidget; - fbtk_widget_t *pwidget; - - assert(widget != NULL); - - /* if widget not mapped do not try to redraw it */ - pwidget = widget; - while (pwidget != NULL) { - if (pwidget->mapped == false) - return; - pwidget = pwidget->parent; - } - - widget->redraw.needed = true; - widget->redraw.x = 0; - widget->redraw.y = 0; - widget->redraw.width = widget->width; - widget->redraw.height = widget->height; - -#ifdef FBTK_LOGGING - LOG("redrawing %p %d,%d %d,%d", widget, widget->redraw.x, widget->redraw.y, widget->redraw.width, widget->redraw.height); -#endif - - cwidget = widget->last_child; - while (cwidget != NULL) { - fbtk_request_redraw(cwidget); - cwidget = cwidget->prev; - } - - while (widget->parent != NULL) { - widget = widget->parent; - widget->redraw.child = true; - } -} - - - -/* exported function documented in fbtk.h */ -int -fbtk_set_mapping(fbtk_widget_t *widget, bool map) -{ - LOG("setting mapping on %p to %d", widget, map); - widget->mapped = map; - if (map) { - fbtk_request_redraw(widget); - } else { - fbtk_request_redraw(widget->parent); - } - return 0; -} - -/** swap the widget given with the next sibling. - * - * Swap a sibling widget with the next deepest in the hierachy - */ -static void -swap_siblings(fbtk_widget_t *lw) -{ - fbtk_widget_t *rw = lw->next; /* the widget to swap lw with */ - fbtk_widget_t *before; - fbtk_widget_t *after; - - assert(rw != NULL); - - LOG("Swapping %p with %p", lw, rw); - before = lw->prev; - after = rw->next; - - if (before == NULL) { - /* left widget is currently the first child */ - lw->parent->first_child = rw; - } else { - before->next = rw; - } - rw->prev = before; - rw->next = lw; - - if (after == NULL) { - /* right widget is currently the last child */ - rw->parent->last_child = lw; - } else { - after->prev = lw; - } - lw->next = after; - lw->prev = rw; -} - - - -/* exported function documented in fbtk.h */ -int -fbtk_set_zorder(fbtk_widget_t *widget, int z) -{ - while (z != 0) { - if (z < 0) { - if (widget->prev == NULL) - break; /* cannot go any shallower */ - - /* swap with previous entry */ - swap_siblings(widget->prev); - - z++; - } else { - if (widget->next == NULL) - break; /* cannot go any deeper */ - - /* swap with subsequent entry */ - swap_siblings(widget); - - z--; - } - } - - return z; -} - - -/* exported function documented in fbtk.h */ -bool -fbtk_set_pos_and_size(fbtk_widget_t *widget, - int x, int y, - int width, int height) -{ - if (widget->parent != NULL) { - fbtk_widget_t *parent = widget->parent; - - /* make new window fit inside parent */ - if (width == 0) { - width = parent->width - x; - } else if (width < 0) { - width = parent->width + width - x; - } - if ((width + x) > parent->width) { - width = parent->width - x; - } - - if (height == 0) { - height = parent->height - y; - } else if (height < 0) { - height = parent->height + height - y; - } - if ((height + y) > parent->height) { - height = parent->height - y; - } - } - - if ((widget->x != x) || - (widget->y != y) || - (widget->width != width) || - (widget->height != height)) { - widget->x = x; - widget->y = y; - widget->width = width; - widget->height = height; - return true; - } - return false; -} - - -/* exported function docuemnted in fbtk.h */ -void -fbtk_set_caret(fbtk_widget_t *widget, bool set, - int x, int y, int height, - void (*remove_caret)(fbtk_widget_t *widget)) -{ - fbtk_widget_t *root; - - assert(widget != NULL); - root = fbtk_get_root_widget(widget); - - if (root->u.root.caret.owner != NULL && - root->u.root.caret.remove_cb != NULL) - root->u.root.caret.remove_cb(widget); - - if (set) { - assert(remove_caret != NULL); - - root->u.root.caret.owner = widget; - root->u.root.caret.x = x; - root->u.root.caret.y = y; - root->u.root.caret.height = height; - root->u.root.caret.remove_cb = remove_caret; - - } else { - root->u.root.caret.owner = NULL; - root->u.root.caret.remove_cb = NULL; - } -} - -/* exported function documented in fbtk.h */ -int -fbtk_destroy_widget(fbtk_widget_t *widget) -{ - fbtk_widget_t *parent; - int ret = 0; - - ret = fbtk_post_callback(widget, FBTK_CBT_DESTROY); - - while (widget->first_child != NULL) { - fbtk_destroy_widget(widget->first_child); - } - - parent = widget->parent; - if (parent != NULL) { - - /* unlink from siblings */ - if (widget->prev != NULL) { - widget->prev->next = widget->next; - } else { - /* must be the first widget, unlink from parent */ - parent->first_child = widget->next; - } - if (widget->next != NULL) { - widget->next->prev = widget->prev; - } else { - /* must be the last widget, unlink from parent */ - parent->last_child = widget->prev; - } - - free(widget); - } - - return ret; -} - -/* region coverage flags. */ -enum { - POINT_LEFTOF_REGION = 1, - POINT_RIGHTOF_REGION = 2, - POINT_ABOVE_REGION = 4, - POINT_BELOW_REGION = 8, -}; - -/* Computes where a point lies in respect to an area. */ -#define REGION(x,y,cx1,cx2,cy1,cy2) \ - (( (y) > (cy2) ? POINT_BELOW_REGION : 0) | \ - ( (y) < (cy1) ? POINT_ABOVE_REGION : 0) | \ - ( (x) > (cx2) ? POINT_RIGHTOF_REGION : 0) | \ - ( (x) < (cx1) ? POINT_LEFTOF_REGION : 0) ) - -/* swap two integers */ -#define SWAP(a, b) do { int t; t=(a); (a)=(b); (b)=t; } while(0) - -/* exported function documented in fbtk.h */ -bool -fbtk_clip_rect(const bbox_t * restrict clip, bbox_t * restrict box) -{ - uint8_t region1; - uint8_t region2; - - /* ensure co-ordinates are in ascending order */ - if (box->x1 < box->x0) - SWAP(box->x0, box->x1); - if (box->y1 < box->y0) - SWAP(box->y0, box->y1); - - region1 = REGION(box->x0, box->y0, clip->x0, clip->x1 - 1, clip->y0, clip->y1 - 1); - region2 = REGION(box->x1, box->y1, clip->x0, clip->x1 - 1, clip->y0, clip->y1 - 1); - - /* area lies entirely outside the clipping rectangle */ - if ((region1 | region2) && (region1 & region2)) - return false; - - if (box->x0 < clip->x0) - box->x0 = clip->x0; - if (box->x0 > clip->x1) - box->x0 = clip->x1; - - if (box->x1 < clip->x0) - box->x1 = clip->x0; - if (box->x1 > clip->x1) - box->x1 = clip->x1; - - if (box->y0 < clip->y0) - box->y0 = clip->y0; - if (box->y0 > clip->y1) - box->y0 = clip->y1; - - if (box->y1 < clip->y0) - box->y1 = clip->y0; - if (box->y1 > clip->y1) - box->y1 = clip->y1; - - return true; -} - -/* exported function documented in fbtk.h */ -bool -fbtk_clip_to_widget(fbtk_widget_t *widget, bbox_t * restrict box) -{ - bbox_t wbox; - wbox.x0 = 0; - wbox.y0 = 0; - wbox.x1 = widget->width; - wbox.y1 = widget->height; - return fbtk_clip_rect(&wbox, box); -} - - - -/* internally exported function documented in widget.h */ -int -fbtk_set_ptr(fbtk_widget_t *widget, fbtk_callback_info *cbi) -{ - fbtk_widget_t *root = fbtk_get_root_widget(widget); - struct fbtk_bitmap *bm = cbi->context; - - nsfb_cursor_set(root->u.root.fb, - (nsfb_colour_t *)bm->pixdata, - bm->width, - bm->height, - bm->width, - bm->hot_x, - bm->hot_y); - - return 0; -} - - - -/* internally exported function documented in widget.h */ -fbtk_widget_t * -fbtk_get_root_widget(fbtk_widget_t *widget) -{ - while (widget->parent != NULL) - widget = widget->parent; - - /* check root widget was found */ - if (widget->type != FB_WIDGET_TYPE_ROOT) { - LOG("Widget with null parent that is not the root widget!"); - return NULL; - } - - return widget; -} - - -/* exported function documented in fbtk.h */ -int -fbtk_get_absx(fbtk_widget_t *widget) -{ - int x = widget->x; - - while (widget->parent != NULL) { - widget = widget->parent; - x += widget->x; - } - - return x; -} - -/* exported function documented in fbtk.h */ -int -fbtk_get_absy(fbtk_widget_t *widget) -{ - int y = widget->y; - - while (widget->parent != NULL) { - widget = widget->parent; - y += widget->y; - } - - return y; -} - -/* exported function documented in fbtk.h */ -int -fbtk_get_height(fbtk_widget_t *widget) -{ - return widget->height; -} - -/* exported function documented in fbtk.h */ -int -fbtk_get_width(fbtk_widget_t *widget) -{ - return widget->width; -} - -/* exported function documented in fbtk.h */ -bool -fbtk_get_bbox(fbtk_widget_t *widget, nsfb_bbox_t *bbox) -{ - bbox->x0 = widget->x; - bbox->y0 = widget->y; - bbox->x1 = widget->x + widget->width; - bbox->y1 = widget->y + widget->height; - - widget = widget->parent; - while (widget != NULL) { - bbox->x0 += widget->x; - bbox->y0 += widget->y; - bbox->x1 += widget->x; - bbox->y1 += widget->y; - widget = widget->parent; - } - - return true; -} - -bool -fbtk_get_caret(fbtk_widget_t *widget, int *x, int *y, int *height) -{ - fbtk_widget_t *root = fbtk_get_root_widget(widget); - - if (root->u.root.caret.owner == widget) { - *x = root->u.root.caret.x; - *y = root->u.root.caret.y; - *height = root->u.root.caret.height; - - return true; - - } else { - *x = 0; - *y = 0; - *height = 0; - - return false; - } -} - -/* exported function documented in fbtk.h */ -fbtk_widget_t * -fbtk_get_widget_at(fbtk_widget_t *nwid, int x, int y) -{ - fbtk_widget_t *widget = NULL; /* found widget */ - - /* require the root widget to start */ - nwid = fbtk_get_root_widget(nwid); - - while (nwid != NULL) { - if ((nwid->mapped) && - (x >= nwid->x) && - (y >= nwid->y) && - (x < (nwid->x + nwid->width)) && - (y < (nwid->y + nwid->height))) { - widget = nwid; - x -= nwid->x; - y -= nwid->y; - nwid = nwid->first_child; - } else { - nwid = nwid->next; - } - } - - return widget; -} - - - - -/* internally exported function documented in widget.h */ -fbtk_widget_t * -fbtk_widget_new(fbtk_widget_t *parent, - enum fbtk_widgettype_e type, - int x, - int y, - int width, - int height) -{ - fbtk_widget_t *neww; /* new widget */ - - if (parent == NULL) - return NULL; - - neww = calloc(1, sizeof(fbtk_widget_t)); - if (neww == NULL) - return NULL; - -#ifdef FBTK_LOGGING - LOG("creating %p %d,%d %d,%d", neww, x, y, width, height); -#endif - - /* make new window fit inside parent */ - if (width == 0) { - width = parent->width - x; - } else if (width < 0) { - width = parent->width + width - x; - } - if ((width + x) > parent->width) { - width = parent->width - x; - } - - if (height == 0) { - height = parent->height - y; - } else if (height < 0) { - height = parent->height + height - y; - } - if ((height + y) > parent->height) { - height = parent->height - y; - } - -#ifdef FBTK_LOGGING - LOG("using %p %d,%d %d,%d", neww, x, y, width, height); -#endif - /* set values */ - neww->type = type; - neww->x = x; - neww->y = y; - neww->width = width; - neww->height = height; - - /* insert into widget heiarchy */ - - neww->parent = parent; - - if (parent->first_child == NULL) { - /* no child widgets yet */ - parent->last_child = neww; - } else { - /* add new widget to front of sibling chain */ - neww->next = parent->first_child; - neww->next->prev = neww; - } - parent->first_child = neww; - - return neww; -} - -/* exported function documented in fbtk.h */ -bool -fbtk_get_redraw_pending(fbtk_widget_t *widget) -{ - fbtk_widget_t *root; - - /* ensure we have the root widget */ - root = fbtk_get_root_widget(widget); - - return root->redraw.needed | root->redraw.child; -} - -/** Perform a depth-first tree-walk, calling the redraw callback of the widgets in turn. - * - * This function makes no decisions of its own and simply walks the - * widget tree depth first calling widgets redraw callbacks if flagged - * to do so. - * The tree search is optimised with a flag to indicate wether the - * children of a node should be considered. - */ -static int -do_redraw(nsfb_t *nsfb, fbtk_widget_t *widget) -{ - nsfb_bbox_t plot_ctx; - fbtk_widget_t *cwidget; /* child widget */ - - /* check if the widget requires redrawing */ - if (widget->redraw.needed == true) { - plot_ctx.x0 = fbtk_get_absx(widget) + widget->redraw.x; - plot_ctx.y0 = fbtk_get_absy(widget) + widget->redraw.y; - plot_ctx.x1 = plot_ctx.x0 + widget->redraw.width; - plot_ctx.y1 = plot_ctx.y0 + widget->redraw.height; - -#ifdef FBTK_LOGGING - LOG("clipping %p %d,%d %d,%d", widget, plot_ctx.x0, plot_ctx.y0, plot_ctx.x1, plot_ctx.y1); -#endif - if (nsfb_plot_set_clip(nsfb, &plot_ctx) == true) { - fbtk_post_callback(widget, FBTK_CBT_REDRAW); - } - widget->redraw.needed = false; - } - - /* walk the widgets children if child flag is set */ - if (widget->redraw.child) { - cwidget = widget->last_child; - while (cwidget != NULL) { - do_redraw(nsfb, cwidget); - cwidget = cwidget->prev; - } - widget->redraw.child = false; - } - - return 1; -} - -/* exported function documented in fbtk.h */ -int -fbtk_redraw(fbtk_widget_t *widget) -{ - fbtk_widget_t *root; - - /* ensure we have the root widget */ - root = fbtk_get_root_widget(widget); - - return do_redraw(root->u.root.fb, root); -} - -/* exported function documented in fbtk.h */ -fbtk_callback -fbtk_get_handler(fbtk_widget_t *widget, fbtk_callback_type cbt) -{ - if ((cbt <= FBTK_CBT_START) || (cbt >= FBTK_CBT_END)) { - /* type out of range, no way to report error so return NULL */ - return NULL; - } - - return widget->callback[cbt]; -} - -/* exported function documented in fbtk.h */ -fbtk_callback -fbtk_set_handler(fbtk_widget_t *widget, - fbtk_callback_type cbt, - fbtk_callback cb, - void *context) -{ - fbtk_callback prevcb; - - if ((cbt <= FBTK_CBT_START) || (cbt >= FBTK_CBT_END)) { - /* type out of range, no way to report error so return NULL */ - return NULL; - } - - prevcb = widget->callback[cbt]; - - widget->callback[cbt] = cb; - widget->callback_context[cbt] = context; - - return prevcb; -} - -/* exported function docuemnted in fbtk.h */ -int -fbtk_post_callback(fbtk_widget_t *widget, fbtk_callback_type cbt, ...) -{ - fbtk_callback_info cbi; - int ret = 0; - va_list ap; - - if (widget == NULL) - return -1; - /* if the widget is not mapped do not attempt to post any - * events to it - */ - if (widget->mapped == false) - return ret; - - if (widget->callback[cbt] != NULL) { - cbi.type = cbt; - cbi.context = widget->callback_context[cbt]; - - va_start(ap, cbt); - - switch (cbt) { - case FBTK_CBT_SCROLLX: - cbi.x = va_arg(ap,int); - break; - - case FBTK_CBT_SCROLLY: - cbi.y = va_arg(ap,int); - break; - - case FBTK_CBT_CLICK: - cbi.event = va_arg(ap, void *); - cbi.x = va_arg(ap, int); - cbi.y = va_arg(ap, int); - break; - - case FBTK_CBT_INPUT: - cbi.event = va_arg(ap, void *); - break; - - case FBTK_CBT_POINTERMOVE: - cbi.x = va_arg(ap, int); - cbi.y = va_arg(ap, int); - break; - - case FBTK_CBT_REDRAW: - break; - - case FBTK_CBT_USER: - break; - - case FBTK_CBT_STRIP_FOCUS: - break; - - default: - break; - } - va_end(ap); - - ret = (widget->callback[cbt])(widget, &cbi); - } - - return ret; -} - -/* exported function docuemnted in fbtk.h */ -void -fbtk_set_focus(fbtk_widget_t *widget) -{ - fbtk_widget_t *root; - - /* ensure we have the root widget */ - root = fbtk_get_root_widget(widget); - - if (root->u.root.input != NULL && - root->u.root.input != widget) { - /* inform previous holder of focus that it's being stripped - * of focus */ - fbtk_post_callback(root->u.root.input, FBTK_CBT_STRIP_FOCUS); - } - - root->u.root.input = widget; -} - - - -/* exported function docuemnted in fbtk.h */ -nsfb_t * -fbtk_get_nsfb(fbtk_widget_t *widget) -{ - fbtk_widget_t *root; - - /* ensure we have the root widget */ - root = fbtk_get_root_widget(widget); - - return root->u.root.fb; -} - -/* exported function docuemnted in fbtk.h */ -fbtk_widget_t * -fbtk_init(nsfb_t *fb) -{ - fbtk_widget_t *root; - - /* create and configure root widget */ - root = calloc(1, sizeof(fbtk_widget_t)); - if (root == NULL) - return NULL; - - root->type = FB_WIDGET_TYPE_ROOT; - root->u.root.fb = fb; - root->u.root.caret.owner = NULL; - - nsfb_get_geometry(fb, &root->width, &root->height, NULL); - - root->mapped = true; - - return root; -} - -/* - * Local Variables: - * c-basic-offset:8 - * End: - */ |