From 64941a66d2474e414ca0d4bbe92f106d8a5e0c7a Mon Sep 17 00:00:00 2001 From: James Bursa Date: Sat, 15 Nov 2003 00:26:42 +0000 Subject: [project @ 2003-11-15 00:26:41 by bursa] New history window. svn path=/import/netsurf/; revision=418 --- riscos/history.c | 280 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 280 insertions(+) create mode 100644 riscos/history.c (limited to 'riscos/history.c') diff --git a/riscos/history.c b/riscos/history.c new file mode 100644 index 000000000..0e9ea8545 --- /dev/null +++ b/riscos/history.c @@ -0,0 +1,280 @@ +/* + * This file is part of NetSurf, http://netsurf.sourceforge.net/ + * Licensed under the GNU General Public License, + * http://www.opensource.org/licenses/gpl-license + * Copyright 2003 James Bursa + */ + +#include +#include +#include "oslib/font.h" +#include "oslib/wimp.h" +#include "netsurf/riscos/gui.h" +#include "netsurf/utils/log.h" +#include "netsurf/utils/utils.h" + +#define SIZE 10 +#define WIDTH 300 +#define HEIGHT 100 +#define MARGIN 32 + +/** A node in the history tree. */ +struct history_entry { + char *url; /**< Page URL. */ + char *title; /**< Page title. */ + struct history_entry *back; + struct history_entry *forward, *forward_pref, *forward_last; + struct history_entry *prev, *next; + unsigned int children; + int x, y, width; +}; + +static struct browser_window *history_bw; +static struct history_entry *history_start; +static struct history_entry *history_current; +wimp_w history_window; +font_f history_font; + +static void ro_gui_history_redraw_tree(struct history_entry *he, + int x0, int y0); +static struct history_entry * ro_gui_history_click_find(struct history_entry *he, + int x, int y); + + +/** + * Insert a url into the history tree. + * + * Takes a copy of the url and title and inserts an entry into the tree forward + * from current, returning the new entry. current may be 0 to start a new tree. + */ + +struct history_entry * history_add(struct history_entry *current, + char *url, char *title) +{ + struct history_entry *entry = xcalloc(1, sizeof(*entry)); + char *split; + int width; + + font_scan_string(history_font, title, font_GIVEN_FONT | font_KERN, + (WIDTH - MARGIN - MARGIN) * 400, 0x7fffffff, + 0, 0, 0, &split, &width, 0, 0); + + entry->url = xstrdup(url); + entry->title = xstrdup(title); + if (entry->title[split - title]) { + entry->title[split - title - 2] = 0x8c; /* ellipsis */ + entry->title[split - title - 1] = 0; + } + entry->back = current; + entry->forward = entry->forward_pref = entry->forward_last = 0; + entry->next = 0; + entry->children = 0; + entry->width = width / 400; + if (current) { + entry->prev = current->forward_last; + if (current->forward_last) + current->forward_last->next = entry; + else + current->forward = entry; + current->forward_pref = current->forward_last = entry; + current->children++; + } else { + entry->prev = 0; + } + return entry; +} + + +/** + * Create history window. + */ + +void ro_gui_history_init(void) +{ + history_window = ro_gui_dialog_create("history"); + history_font = font_find_font("Homerton.Medium", 128, 128, 0, 0, 0, 0); +} + + +/** + * Free history window resources. + */ + +void ro_gui_history_quit(void) +{ + font_lose_font(history_font); +} + + +/** + * Open history window at a specified entry. + */ + +void ro_gui_history_open(struct browser_window *bw, + struct history_entry *entry, int wx, int wy) +{ + bool done = false; + unsigned int i, j; + int x, max_y = 0; + struct history_entry *row[SIZE], *row2[SIZE]; + struct history_entry *he; + os_box box = {0, 0, 0, 0}; + + history_bw = bw; + history_current = entry; + for (history_start = entry; + history_start->back; + history_start = history_start->back) + ; + + /* calculate layout */ + for (i = 0; i != SIZE; i++) + row[i] = row2[i] = 0; + row[0] = history_start; + history_start->x = 0; + history_start->y = 0; + for (x = 1; !done; x++) { + for (i = 0; i != SIZE; i++) { + if (row[i]) { + for (j = i; j != SIZE && row2[j]; j++) + ; + if (j == SIZE) { + if (row[i]->forward) + row[i]->forward->x = -1; + break; + } + for (he = row[i]->forward; he; he = he->next) { + row2[j++] = he; + if (j == SIZE) { + if (he->next) + he->next->x = -1; + break; + } + } + if (j == SIZE) + break; + } + } + done = true; + for (i = 0; i != SIZE; i++) { + row[i] = row2[i]; + if (row[i]) { + row[i]->x = x; + row[i]->y = i; + if (max_y < i) + max_y = i; + done = false; + } + row2[i] = 0; + } + } + + box.x1 = WIDTH * (x - 1); + box.y0 = -HEIGHT * (max_y + 1); + wimp_set_extent(history_window, &box); + wimp_create_menu((wimp_menu *) history_window, wx, wy); +} + + +/** + * Redraw history window. + */ + +void ro_gui_history_redraw(wimp_draw *redraw) +{ + osbool more; + + more = wimp_redraw_window(redraw); + colourtrans_set_gcol(os_COLOUR_WHITE, 0, os_ACTION_OVERWRITE, 0); + + while (more) { + ro_gui_history_redraw_tree(history_start, + redraw->box.x0 - redraw->xscroll, + redraw->box.y1 - redraw->yscroll); + more = wimp_get_rectangle(redraw); + } +} + + +/** + * Redraw history tree recursively. + */ + +void ro_gui_history_redraw_tree(struct history_entry *he, + int x0, int y0) +{ + struct history_entry *c; + + os_plot(os_MOVE_TO, x0 + he->x * WIDTH + MARGIN, + y0 - he->y * HEIGHT - MARGIN); + os_plot(os_PLOT_RECTANGLE | os_PLOT_BY, WIDTH - MARGIN - MARGIN, + -(HEIGHT - MARGIN - MARGIN)); + + if (he == history_current) + wimp_set_font_colours(wimp_COLOUR_WHITE, wimp_COLOUR_RED); + else + wimp_set_font_colours(wimp_COLOUR_WHITE, wimp_COLOUR_BLACK); + + font_paint(history_font, he->title, + font_OS_UNITS | font_GIVEN_FONT | font_KERN, + x0 + he->x * WIDTH + (WIDTH - he->width) / 2, + y0 - he->y * HEIGHT - MARGIN - 24, + 0, 0, 0); + + for (c = he->forward; c; c = c->next) { + if (c->x == -1) + continue; + os_plot(os_MOVE_TO, x0 + c->x * WIDTH - MARGIN, + y0 - he->y * HEIGHT - HEIGHT / 2); + os_plot(os_PLOT_SOLID | os_PLOT_TO, + x0 + c->x * WIDTH + MARGIN, + y0 - c->y * HEIGHT - HEIGHT / 2); + ro_gui_history_redraw_tree(c, x0, y0); + } +} + + +/** + * Handle mouse clicks in the history window. + */ + +void ro_gui_history_click(wimp_pointer *pointer) +{ + int x, y; + struct history_entry *he; + wimp_window_state state; + + state.w = history_window; + wimp_get_window_state(&state); + + x = (pointer->pos.x - (state.visible.x0 - state.xscroll)) / WIDTH; + y = -(pointer->pos.y - (state.visible.y1 - state.yscroll)) / HEIGHT; + LOG(("x = %i, y = %i", x, y)); + he = ro_gui_history_click_find(history_start, x, y); + if (he) { + history_bw->history_entry = he; + wimp_create_menu(wimp_CLOSE_MENU, 0, 0); + browser_window_open_location_historical(history_bw, + he->url, 0, 0); + } +} + + +/** + * Search for an entry with the specified coordinates. + */ + +struct history_entry * ro_gui_history_click_find(struct history_entry *he, + int x, int y) +{ + struct history_entry *c, *d; + if (he->x == x && he->y == y) + return he; + for (c = he->forward; c; c = c->next) { + d = ro_gui_history_click_find(c, x, y); + if (d) + return d; + } + return 0; +} + -- cgit v1.2.3