138 lines
5.3 KiB
C
138 lines
5.3 KiB
C
/*
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* This file is part of NetSurf, http://netsurf.sourceforge.net/
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* Licensed under the GNU General Public License,
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* http://www.opensource.org/licenses/gpl-license
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* Copyright 2004 Richard Wilson <not_ginger_matt@users.sourceforge.net>
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*/
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/** \file
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* Generic tree handling (interface).
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*/
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#ifndef _NETSURF_DESKTOP_TREE_H_
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#define _NETSURF_DESKTOP_TREE_H_
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#include <stdbool.h>
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#define TREE_ELEMENT_URL 1
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#define TREE_ELEMENT_ADDED 2
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#define TREE_ELEMENT_LAST_VISIT 3
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#define TREE_ELEMENT_VISITS 4
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#define NODE_INSTEP 40
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struct node_sprite;
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typedef enum {
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NODE_ELEMENT_TEXT, /* <-- Text only */
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NODE_ELEMENT_TEXT_PLUS_SPRITE, /* <-- Text and sprite */
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NODE_ELEMENT_SPRITE, /* <-- Sprite only */
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} node_element_type;
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struct node_element_box {
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int x; /* <-- X offset from origin */
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int y; /* <-- Y offset from origin */
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int width; /* <-- Element width */
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int height; /* <-- Element height */
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};
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struct node_element {
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struct node *parent; /* <-- Parent node */
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node_element_type type; /* <-- Element type */
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struct node_element_box box; /* <-- Element bounding box */
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char *text; /* <-- Text for the element */
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struct node_sprite *sprite; /* <-- Sprite for the element */
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struct node_element *next; /* <-- Next node element */
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int user_data; /* <-- Private user data */
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int user_type; /* <-- Private user data */
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};
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struct node {
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bool selected; /* <-- Whether the node is selected */
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bool expanded; /* <-- Whether the node is expanded */
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bool folder; /* <-- Whether the node is a folder */
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bool editable; /* <-- Whether the node is editable */
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bool processing; /* <-- Internal flag used when moving */
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struct node_element_box box; /* <-- Bounding box of all elements */
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struct node_element data; /* <-- Data to display */
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struct node *parent; /* <-- Parent entry (NULL for root) */
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struct node *child; /* <-- First child */
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struct node *previous; /* <-- Previous child of the parent */
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struct node *next; /* <-- Next child of the parent */
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};
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struct tree {
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unsigned int handle; /* <-- User assigned handle */
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int offset_x; /* <-- User assigned tree x offset */
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int offset_y; /* <-- User assigned tree y offset */
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struct node *root; /* <-- Tree root element */
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int width; /* <-- Tree width */
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int height; /* <-- Tree height */
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int window_width; /* <-- Tree window width */
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int window_height; /* <-- Tree window height */
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int edit_handle; /* <-- Handle for editing information */
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bool movable; /* <-- Whether nodes can be moved */
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struct node_element *editing; /* <-- Node element being edited */
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char edit_buffer[256]; /* <-- Editing buffer */
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struct node *temp_selection; /* <-- Temporarily selected node */
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};
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/* Non-platform specific code */
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void tree_initialise(struct tree *tree);
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void tree_initialise_nodes(struct node *root);
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void tree_handle_node_changed(struct tree *tree, struct node *node,
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bool recalculate_sizes, bool expansion);
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void tree_handle_node_element_changed(struct tree *tree,
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struct node_element *element);
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struct node *tree_get_node_at(struct node *root, int x, int y, bool *furniture);
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struct node_element *tree_get_node_element_at(struct node *node, int x, int y,
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bool *furniture);
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struct node_element *tree_find_element(struct node *node, int user_type);
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void tree_move_selected_nodes(struct tree *tree, struct node *destination,
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bool before);
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bool tree_has_selection(struct node *node);
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void tree_draw(struct tree *tree, int clip_x, int clip_y, int clip_width,
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int clip_height);
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void tree_link_node(struct node *link, struct node *node, bool before);
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void tree_delink_node(struct node *node);
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struct node *tree_create_folder_node(struct node *parent, const char *title);
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struct node *tree_create_leaf_node(struct node *parent, const char *title);
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void tree_set_node_sprite(struct node *node, const char *sprite,
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const char *expanded);
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void tree_set_node_sprite_folder(struct node *node);
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struct node *tree_create_URL_node(struct node *parent, const char *title,
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const char *url, int filetype, int add_date, int last_date,
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int visits);
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void tree_reset_URL_nodes(struct tree *tree, struct node *node, bool selected);
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void tree_set_node_expanded(struct node *node, bool expanded);
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void tree_set_node_selected(struct tree *tree, struct node *node,
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bool selected);
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void tree_handle_selection_area(struct tree *tree, int x, int y, int width,
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int height, bool invert);
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void tree_delete_selected_nodes(struct tree *tree, struct node *node);
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void tree_delete_node(struct tree *tree, struct node *node, bool siblings);
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void tree_recalculate_size(struct tree *tree);
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bool tree_handle_expansion(struct tree *tree, struct node *node, bool expanded,
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bool folder, bool leaf);
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struct node *tree_get_selected_node(struct node *node);
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struct node *tree_get_link_details(struct tree *tree, int x, int y,
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bool *before);
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/* Platform specific code */
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void tree_initialise_redraw(struct tree *tree);
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void tree_redraw_area(struct tree *tree, int x, int y, int width, int height);
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void tree_draw_line(struct tree *tree, int x, int y, int width, int height);
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void tree_draw_node_element(struct tree *tree, struct node_element *element);
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void tree_draw_node_expansion(struct tree *tree, struct node *node);
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void tree_recalculate_node_element(struct node_element *element);
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void tree_update_URL_node(struct node *node);
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void tree_resized(struct tree *tree);
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#endif
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