diff options
Diffstat (limited to 'widgets/table/e-cell-tree.c')
| -rw-r--r-- | widgets/table/e-cell-tree.c | 911 |
1 files changed, 0 insertions, 911 deletions
diff --git a/widgets/table/e-cell-tree.c b/widgets/table/e-cell-tree.c deleted file mode 100644 index a0be81e889..0000000000 --- a/widgets/table/e-cell-tree.c +++ /dev/null @@ -1,911 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* - * e-cell-tree.c - Tree cell object. - * Copyright 1999, 2000, 2001, Ximian, Inc. - * - * Authors: - * Chris Toshok <toshok@ximian.com> - * - * A majority of code taken from: - * - * the ECellText renderer. - * Copyright 1998, The Free Software Foundation - * Copyright 1999, 2000, Ximian, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License, version 2, as published by the Free Software Foundation. - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - * 02111-1307, USA. - */ - -#include <config.h> - -#include <ctype.h> -#include <math.h> -#include <stdio.h> - -#include <gdk/gdkx.h> /* for BlackPixel */ -#include <gtk/gtkenums.h> -#include <gtk/gtkentry.h> -#include <gtk/gtkwindow.h> -#include <gtk/gtkinvisible.h> -#include <gtk/gtksignal.h> -#include <gdk/gdkkeysyms.h> -#include <libgnomecanvas/gnome-canvas.h> - -#include "e-tree-table-adapter.h" -#include "e-tree.h" -#include "e-tree-model.h" -#include "gal/util/e-util.h" -#include "e-table-item.h" -#include "e-cell-tree.h" - -#include "tree-expanded.xpm" -#include "tree-unexpanded.xpm" - -#include "gal/a11y/e-table/gal-a11y-e-cell-registry.h" -#include "gal/a11y/e-table/gal-a11y-e-cell-tree.h" - -#define PARENT_TYPE e_cell_get_type () - -typedef struct { - ECellView cell_view; - ECellView *subcell_view; - GdkGC *gc; - - GnomeCanvas *canvas; - gboolean retro_look; - gboolean prelit; - gint animate_timeout; - -} ECellTreeView; - -static ECellClass *parent_class; - -#define INDENT_AMOUNT 16 - -ECellView * -e_cell_tree_view_get_subcell_view (ECellView *ect) -{ - return ((ECellTreeView *)ect)->subcell_view; -} - -static ETreePath -e_cell_tree_get_node (ETableModel *table_model, int row) -{ - return e_table_model_value_at (table_model, -1, row); -} - -static ETreeModel* -e_cell_tree_get_tree_model (ETableModel *table_model, int row) -{ - return e_table_model_value_at (table_model, -2, row); -} - -static ETreeTableAdapter * -e_cell_tree_get_tree_table_adapter (ETableModel *table_model, int row) -{ - return e_table_model_value_at (table_model, -3, row); -} - -static int -visible_depth_of_node (ETableModel *model, int row) -{ - ETreeModel *tree_model = e_cell_tree_get_tree_model(model, row); - ETreeTableAdapter *adapter = e_cell_tree_get_tree_table_adapter(model, row); - ETreePath path = e_cell_tree_get_node(model, row); - return (e_tree_model_node_depth (tree_model, path) - - (e_tree_table_adapter_root_node_is_visible (adapter) ? 0 : 1)); -} - -/* If this is changed to not include the width of the expansion pixmap - if the path is not expandable, then max_width needs to change as - well. */ -static gint -offset_of_node (ETableModel *table_model, int row) -{ - ETreeModel *tree_model = e_cell_tree_get_tree_model(table_model, row); - ETreePath path = e_cell_tree_get_node(table_model, row); - - if (visible_depth_of_node (table_model, row) > 0 || - e_tree_model_node_is_expandable(tree_model, path)) { - return (visible_depth_of_node(table_model, row) + 1) * INDENT_AMOUNT; - } else { - return 0; - } -} - -/* - * ECell::new_view method - */ -static ECellView * -ect_new_view (ECell *ecell, ETableModel *table_model, void *e_table_item_view) -{ - ECellTree *ect = E_CELL_TREE (ecell); - ECellTreeView *tree_view = g_new0 (ECellTreeView, 1); - GnomeCanvas *canvas = GNOME_CANVAS_ITEM (e_table_item_view)->canvas; - - tree_view->cell_view.ecell = ecell; - tree_view->cell_view.e_table_model = table_model; - tree_view->cell_view.e_table_item_view = e_table_item_view; - - /* create our subcell view */ - tree_view->subcell_view = e_cell_new_view (ect->subcell, table_model, e_table_item_view /* XXX */); - - tree_view->canvas = canvas; - - return (ECellView *)tree_view; -} - -/* - * ECell::kill_view method - */ -static void -ect_kill_view (ECellView *ecv) -{ - ECellTreeView *tree_view = (ECellTreeView *) ecv; - - /* kill our subcell view */ - e_cell_kill_view (tree_view->subcell_view); - - g_free (tree_view); -} - -/* - * ECell::realize method - */ -static void -ect_realize (ECellView *ecell_view) -{ - ECellTreeView *tree_view = (ECellTreeView *) ecell_view; - - /* realize our subcell view */ - e_cell_realize (tree_view->subcell_view); - - tree_view->gc = gdk_gc_new (GTK_WIDGET (tree_view->canvas)->window); - - gdk_gc_set_line_attributes (tree_view->gc, 1, - GDK_LINE_ON_OFF_DASH, None, None); - gdk_gc_set_dashes (tree_view->gc, 0, "\1\1", 2); - - if (parent_class->realize) - (* parent_class->realize) (ecell_view); -} - -/* - * ECell::unrealize method - */ -static void -ect_unrealize (ECellView *ecv) -{ - ECellTreeView *tree_view = (ECellTreeView *) ecv; - - /* unrealize our subcell view. */ - e_cell_unrealize (tree_view->subcell_view); - - gdk_gc_unref (tree_view->gc); - tree_view->gc = NULL; - - if (parent_class->unrealize) - (* parent_class->unrealize) (ecv); -} - -static void -draw_retro_expander (ECellTreeView *ectv, GdkDrawable *drawable, gboolean expanded, GdkRectangle *rect) -{ - GdkPixbuf *image; - int image_width, image_height; - ECellTree *ect = E_CELL_TREE(ectv->cell_view.ecell); - - image = expanded ? ect->open_pixbuf : ect->closed_pixbuf; - - image_width = gdk_pixbuf_get_width(image); - image_height = gdk_pixbuf_get_height(image); - - gdk_pixbuf_render_to_drawable_alpha (image, - drawable, - rect->x, rect->y, - rect->width - image_width / 2, - rect->height - image_height / 2, - image_width, image_height, - GDK_PIXBUF_ALPHA_BILEVEL, - 128, - GDK_RGB_DITHER_NORMAL, - image_width, 0); -} - -static void -draw_expander (ECellTreeView *ectv, GdkDrawable *drawable, GtkExpanderStyle expander_style, GtkStateType state, GdkRectangle *rect) -{ - GtkWidget *tree = GTK_WIDGET (ectv->canvas)->parent; - gint exp_size; - gtk_widget_style_get (tree, "expander_size", &exp_size, NULL); - - gtk_paint_expander (tree->style, drawable, state, rect, tree, "treeview", rect->x + rect->width - exp_size / 2, rect->y + rect->height / 2, expander_style); -} - -/* - * ECell::draw method - */ -static void -ect_draw (ECellView *ecell_view, GdkDrawable *drawable, - int model_col, int view_col, int row, ECellFlags flags, - int x1, int y1, int x2, int y2) -{ - ECellTreeView *tree_view = (ECellTreeView *)ecell_view; - ETreeModel *tree_model = e_cell_tree_get_tree_model(ecell_view->e_table_model, row); - ETreeTableAdapter *tree_table_adapter = e_cell_tree_get_tree_table_adapter(ecell_view->e_table_model, row); - ETreePath node; - GdkRectangle rect, *clip_rect = NULL; - GtkWidget *canvas = GTK_WIDGET (tree_view->canvas); - GdkGC *fg_gc = canvas->style->fg_gc[GTK_STATE_ACTIVE]; - GdkColor *foreground; - gboolean selected; - - int offset, subcell_offset; - - selected = flags & E_CELL_SELECTED; - - /* only draw the tree effects if we're the active sort */ - if (/* XXX */ TRUE) { - GdkPixbuf *node_image; - int node_image_width = 0, node_image_height = 0; - ETreePath parent_node; - ETree *tree = E_TREE (canvas->parent); - - gtk_widget_style_get (GTK_WIDGET (tree), - "retro_look", &tree_view->retro_look, - NULL); - tree_view->prelit = FALSE; - - node = e_cell_tree_get_node (ecell_view->e_table_model, row); - - offset = offset_of_node (ecell_view->e_table_model, row); - subcell_offset = offset; - - node_image = e_tree_model_icon_at (tree_model, node); - - if (node_image) { - node_image_width = gdk_pixbuf_get_width (node_image); - node_image_height = gdk_pixbuf_get_height (node_image); - } - - /* - * Be a nice citizen: clip to the region we are supposed to draw on - */ - rect.x = x1; - rect.y = y1; - rect.width = subcell_offset + node_image_width; - rect.height = y2 - y1; - - gdk_gc_set_clip_rectangle (tree_view->gc, &rect); - gdk_gc_set_clip_rectangle (fg_gc, &rect); - clip_rect = ▭ - - if (selected) { - foreground = &canvas->style->text [GTK_STATE_SELECTED]; - } else { - foreground = &canvas->style->text [GTK_STATE_NORMAL]; - } - - gdk_gc_set_foreground (tree_view->gc, foreground); - - /* draw our lines */ - if (tree_view->retro_look && E_CELL_TREE(tree_view->cell_view.ecell)->draw_lines) { - - int depth; - - if (visible_depth_of_node (ecell_view->e_table_model, row) > 0 - || e_tree_model_node_get_children (tree_model, node, NULL) > 0) - gdk_draw_line (drawable, tree_view->gc, - rect.x + offset - INDENT_AMOUNT / 2 + 1, - rect.y + rect.height / 2, - rect.x + offset, - rect.y + rect.height / 2); - - if (visible_depth_of_node (ecell_view->e_table_model, row) != 0) { - gdk_draw_line (drawable, tree_view->gc, - rect.x + offset - INDENT_AMOUNT / 2, - rect.y, - rect.x + offset - INDENT_AMOUNT / 2, - (e_tree_table_adapter_node_get_next (tree_table_adapter, node) - ? rect.y + rect.height - : rect.y + rect.height / 2)); - } - - /* now traverse back up to the root of the tree, checking at - each level if the node has siblings, and drawing the - correct vertical pipe for it's configuration. */ - parent_node = e_tree_model_node_get_parent (tree_model, node); - offset -= INDENT_AMOUNT; - depth = visible_depth_of_node (ecell_view->e_table_model, row) - 1; - while (parent_node && depth != 0) { - if (e_tree_table_adapter_node_get_next(tree_table_adapter, parent_node)) { - gdk_draw_line (drawable, tree_view->gc, - rect.x + offset - INDENT_AMOUNT / 2, - rect.y, - rect.x + offset - INDENT_AMOUNT / 2, - rect.y + rect.height); - } - parent_node = e_tree_model_node_get_parent (tree_model, parent_node); - depth --; - offset -= INDENT_AMOUNT; - } - } - - /* now draw our icon if we're expandable */ - if (e_tree_model_node_is_expandable (tree_model, node)) { - gboolean expanded = e_tree_table_adapter_node_is_expanded (tree_table_adapter, node); - GdkRectangle r; - if (tree_view->retro_look) { - r.x = 0; - r.y = 0; - r.width = x1 + subcell_offset - INDENT_AMOUNT / 2, - r.height = y1 + (y2 - y1) / 2, - draw_retro_expander (tree_view, drawable, expanded, &r); - } else { - r = rect; - r.width -= node_image_width + 2; - draw_expander (tree_view, drawable, expanded ? GTK_EXPANDER_EXPANDED : GTK_EXPANDER_COLLAPSED, GTK_STATE_NORMAL, &r); - } - } - - if (node_image) { - gdk_pixbuf_render_to_drawable_alpha (node_image, - drawable, - 0, 0, - x1 + subcell_offset, - y1 + (y2 - y1) / 2 - node_image_height / 2, - node_image_width, node_image_height, - GDK_PIXBUF_ALPHA_BILEVEL, - 128, - GDK_RGB_DITHER_NORMAL, - node_image_width, 0); - subcell_offset += node_image_width; - } - } - - /* Now cause our subcell to draw its contents, shifted by - subcell_offset pixels */ - e_cell_draw (tree_view->subcell_view, drawable, - model_col, view_col, row, flags, - x1 + subcell_offset, y1, x2, y2); - - if (clip_rect) { - gdk_gc_set_clip_rectangle (tree_view->gc, NULL); - gdk_gc_set_clip_rectangle (fg_gc, NULL); - } -} - -static void -adjust_event_position (GdkEvent *event, gint offset) -{ - switch (event->type) { - case GDK_BUTTON_PRESS: - case GDK_BUTTON_RELEASE: - case GDK_2BUTTON_PRESS: - case GDK_3BUTTON_PRESS: - event->button.x += offset; - break; - case GDK_MOTION_NOTIFY: - event->motion.x += offset; - break; - default: - break; - } -} - -static gboolean -event_in_expander (GdkEvent *event, gint offset, gint height) -{ - switch (event->type) { - case GDK_BUTTON_PRESS: - return (event->button.x > (offset - INDENT_AMOUNT) && event->button.x < offset); - case GDK_MOTION_NOTIFY: - return (event->motion.x > (offset - INDENT_AMOUNT) && event->motion.x < offset && - event->motion.y > 2 && event->motion.y < (height - 2)); - default: - break; - } - - return FALSE; -} - -/* - * ECell::height method - */ -static int -ect_height (ECellView *ecell_view, int model_col, int view_col, int row) -{ - ECellTreeView *tree_view = (ECellTreeView *) ecell_view; - - return (((e_cell_height (tree_view->subcell_view, model_col, view_col, row)) + 1) / 2) * 2; -} - -typedef struct { - ECellTreeView *ectv; - ETreeTableAdapter *etta; - ETreePath node; - gboolean expanded; - gboolean finish; - GdkRectangle area; -} animate_closure_t; - -static gboolean -animate_expander (gpointer data) -{ - animate_closure_t *closure = (animate_closure_t *) data; - - if (closure->finish) { - e_tree_table_adapter_node_set_expanded (closure->etta, closure->node, !closure->expanded); - closure->ectv->animate_timeout = 0; - g_free (data); - return FALSE; - } - - draw_expander (closure->ectv, GTK_LAYOUT (closure->ectv->canvas)->bin_window, - closure->expanded ? GTK_EXPANDER_SEMI_COLLAPSED : GTK_EXPANDER_SEMI_EXPANDED, - GTK_STATE_NORMAL, &closure->area); - closure->finish = TRUE; - - return TRUE; -} - -/* - * ECell::event method - */ -static gint -ect_event (ECellView *ecell_view, GdkEvent *event, int model_col, int view_col, int row, ECellFlags flags, ECellActions *actions) -{ - ECellTreeView *tree_view = (ECellTreeView *) ecell_view; - ETreeModel *tree_model = e_cell_tree_get_tree_model (ecell_view->e_table_model, row); - ETreeTableAdapter *etta = e_cell_tree_get_tree_table_adapter(ecell_view->e_table_model, row); - ETreePath node = e_cell_tree_get_node (ecell_view->e_table_model, row); - int offset = offset_of_node (ecell_view->e_table_model, row); - gint result; - - switch (event->type) { - case GDK_BUTTON_PRESS: - - if (event_in_expander (event, offset, 0)) { - if (e_tree_model_node_is_expandable (tree_model, node)) { - gboolean expanded = e_tree_table_adapter_node_is_expanded(etta, node); - if (tree_view->retro_look) - e_tree_table_adapter_node_set_expanded (etta, node, !expanded); - else { - gint tmp_row = row; - GdkRectangle area; - animate_closure_t *closure = g_new0 (animate_closure_t, 1); - e_table_item_get_cell_geometry (tree_view->cell_view.e_table_item_view, - &tmp_row, &view_col, &area.x, &area.y, NULL, &area.height); - area.width = offset - 2; - draw_expander (tree_view, GTK_LAYOUT (tree_view->canvas)->bin_window, - expanded ? GTK_EXPANDER_SEMI_EXPANDED : GTK_EXPANDER_SEMI_COLLAPSED, - GTK_STATE_NORMAL, &area); - closure->ectv = tree_view; - closure->etta = etta; - closure->node = node; - closure->expanded = expanded; - closure->area = area; - tree_view->animate_timeout = g_timeout_add (50, animate_expander, closure); - } - return TRUE; - } - } - else if (event->button.x < (offset - INDENT_AMOUNT)) - return FALSE; - break; - - case GDK_MOTION_NOTIFY: - - if (!tree_view->retro_look && e_tree_model_node_is_expandable (tree_model, node)) { - gint height = ect_height (ecell_view, model_col, view_col, row); - GdkRectangle area; - gboolean in_expander = event_in_expander (event, offset, height); - - if (tree_view->prelit ^ in_expander) { - gint tmp_row = row; - e_table_item_get_cell_geometry (tree_view->cell_view.e_table_item_view, - &tmp_row, &view_col, &area.x, &area.y, NULL, &area.height); - area.width = offset - 2; - draw_expander (tree_view, GTK_LAYOUT (tree_view->canvas)->bin_window, - e_tree_table_adapter_node_is_expanded (etta, node) ? GTK_EXPANDER_EXPANDED : GTK_EXPANDER_COLLAPSED, - in_expander ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL, &area); - tree_view->prelit = in_expander; - return TRUE; - } - - } - break; - - case GDK_LEAVE_NOTIFY: - - if (tree_view->prelit) { - gint tmp_row = row; - GdkRectangle area; - e_table_item_get_cell_geometry (tree_view->cell_view.e_table_item_view, - &tmp_row, &view_col, &area.x, &area.y, NULL, &area.height); - area.width = offset - 2; - draw_expander (tree_view, GTK_LAYOUT (tree_view->canvas)->bin_window, - e_tree_table_adapter_node_is_expanded (etta, node) ? GTK_EXPANDER_EXPANDED : GTK_EXPANDER_COLLAPSED, - GTK_STATE_NORMAL, &area); - tree_view->prelit = FALSE; - } - return TRUE; - - default: - break; - } - - adjust_event_position (event, -offset); - result = e_cell_event(tree_view->subcell_view, event, model_col, view_col, row, flags, actions); - adjust_event_position (event, offset); - - return result; -} - -/* - * ECell::max_width method - */ -static int -ect_max_width (ECellView *ecell_view, int model_col, int view_col) -{ - ECellTreeView *tree_view = (ECellTreeView *) ecell_view; - int row; - int number_of_rows; - int max_width = 0; - int width = 0; - int subcell_max_width = 0; - gboolean per_row = e_cell_max_width_by_row_implemented (tree_view->subcell_view); - - number_of_rows = e_table_model_row_count (ecell_view->e_table_model); - - if (!per_row) - subcell_max_width = e_cell_max_width (tree_view->subcell_view, model_col, view_col); - - for (row = 0; row < number_of_rows; row++) { - ETreeModel *tree_model = e_cell_tree_get_tree_model(ecell_view->e_table_model, row); - ETreePath node; - GdkPixbuf *node_image; - int node_image_width = 0, node_image_height = 0; - - int offset, subcell_offset; -#if 0 - gboolean expanded, expandable; - ETreeTableAdapter *tree_table_adapter = e_cell_tree_get_tree_table_adapter(ecell_view->e_table_model, row); -#endif - - node = e_cell_tree_get_node (ecell_view->e_table_model, row); - - offset = offset_of_node (ecell_view->e_table_model, row); - subcell_offset = offset; - - node_image = e_tree_model_icon_at (tree_model, node); - - if (node_image) { - node_image_width = gdk_pixbuf_get_width (node_image); - node_image_height = gdk_pixbuf_get_height (node_image); - } - - width = subcell_offset + node_image_width; - - if (per_row) - width += e_cell_max_width_by_row (tree_view->subcell_view, model_col, view_col, row); - else - width += subcell_max_width; - -#if 0 - expandable = e_tree_model_node_is_expandable (tree_model, node); - expanded = e_tree_table_adapter_node_is_expanded (tree_table_adapter, node); - - /* This is unnecessary since this is already handled - by the offset_of_node function. If that changes, - this will have to change too. */ - - if (expandable) { - GdkPixbuf *image; - - image = (expanded - ? E_CELL_TREE(tree_view->cell_view.ecell)->open_pixbuf - : E_CELL_TREE(tree_view->cell_view.ecell)->closed_pixbuf); - - width += gdk_pixbuf_get_width(image); - } -#endif - - max_width = MAX (max_width, width); - } - - return max_width; -} - -/* - * ECellView::show_tooltip method - */ -static void -ect_show_tooltip (ECellView *ecell_view, int model_col, int view_col, int row, - int col_width, ETableTooltip *tooltip) -{ - ECellTreeView *tree_view = (ECellTreeView *) ecell_view; - ETreeModel *tree_model = e_cell_tree_get_tree_model (ecell_view->e_table_model, row); - ETreePath node = e_cell_tree_get_node (ecell_view->e_table_model, row); - int offset = offset_of_node (ecell_view->e_table_model, row); - GdkPixbuf *node_image; - - node_image = e_tree_model_icon_at (tree_model, node); - if (node_image) - offset += gdk_pixbuf_get_width (node_image); - - tooltip->x += offset; - e_cell_show_tooltip (tree_view->subcell_view, model_col, view_col, row, col_width - offset, tooltip); -} - -/* - * ECellView::get_bg_color method - */ -static char * -ect_get_bg_color (ECellView *ecell_view, int row) -{ - ECellTreeView *tree_view = (ECellTreeView *) ecell_view; - - return e_cell_get_bg_color (tree_view->subcell_view, row); -} - -/* - * ECellView::enter_edit method - */ -static void * -ect_enter_edit (ECellView *ecell_view, int model_col, int view_col, int row) -{ - /* just defer to our subcell's view */ - ECellTreeView *tree_view = (ECellTreeView *) ecell_view; - - return e_cell_enter_edit (tree_view->subcell_view, model_col, view_col, row); -} - -/* - * ECellView::leave_edit method - */ -static void -ect_leave_edit (ECellView *ecell_view, int model_col, int view_col, int row, void *edit_context) -{ - /* just defer to our subcell's view */ - ECellTreeView *tree_view = (ECellTreeView *) ecell_view; - - e_cell_leave_edit (tree_view->subcell_view, model_col, view_col, row, edit_context); -} - -static void -ect_print (ECellView *ecell_view, GnomePrintContext *context, - int model_col, int view_col, int row, - double width, double height) -{ - ECellTreeView *tree_view = (ECellTreeView *) ecell_view; - - if (/* XXX only if we're the active sort */ TRUE) { - ETreeModel *tree_model = e_cell_tree_get_tree_model (ecell_view->e_table_model, row); - ETreeTableAdapter *tree_table_adapter = e_cell_tree_get_tree_table_adapter(ecell_view->e_table_model, row); - ETreePath node = e_cell_tree_get_node (ecell_view->e_table_model, row); - int offset = offset_of_node (ecell_view->e_table_model, row); - int subcell_offset = offset; - gboolean expandable = e_tree_model_node_is_expandable (tree_model, node); - gboolean expanded = e_tree_table_adapter_node_is_expanded (tree_table_adapter, node); - - /* draw our lines */ - if (E_CELL_TREE(tree_view->cell_view.ecell)->draw_lines) { - int depth; - - if (!e_tree_model_node_is_root (tree_model, node) - || e_tree_model_node_get_children (tree_model, node, NULL) > 0) { - gnome_print_moveto (context, - offset - INDENT_AMOUNT / 2, - height / 2); - - gnome_print_lineto (context, - offset, - height / 2); - } - - if (visible_depth_of_node (ecell_view->e_table_model, row) != 0) { - gnome_print_moveto (context, - offset - INDENT_AMOUNT / 2, - height); - gnome_print_lineto (context, - offset - INDENT_AMOUNT / 2, - (e_tree_table_adapter_node_get_next (tree_table_adapter, node) - ? 0 - : height / 2)); - } - - /* now traverse back up to the root of the tree, checking at - each level if the node has siblings, and drawing the - correct vertical pipe for it's configuration. */ - node = e_tree_model_node_get_parent (tree_model, node); - depth = visible_depth_of_node (ecell_view->e_table_model, row) - 1; - offset -= INDENT_AMOUNT; - while (node && depth != 0) { - if (e_tree_table_adapter_node_get_next(tree_table_adapter, node)) { - gnome_print_moveto (context, - offset - INDENT_AMOUNT / 2, - height); - gnome_print_lineto (context, - offset - INDENT_AMOUNT / 2, - 0); - } - node = e_tree_model_node_get_parent (tree_model, node); - depth --; - offset -= INDENT_AMOUNT; - } - } - - /* now draw our icon if we're expandable */ - if (expandable) { - double image_matrix [6] = {16, 0, 0, 16, 0, 0}; - GdkPixbuf *image = (expanded - ? E_CELL_TREE(tree_view->cell_view.ecell)->open_pixbuf - : E_CELL_TREE(tree_view->cell_view.ecell)->closed_pixbuf); - int image_width, image_height, image_rowstride; - guchar *image_pixels; - - image_width = gdk_pixbuf_get_width(image); - image_height = gdk_pixbuf_get_height(image); - image_pixels = gdk_pixbuf_get_pixels(image); - image_rowstride = gdk_pixbuf_get_rowstride(image); - - image_matrix [4] = subcell_offset - INDENT_AMOUNT / 2 - image_width / 2; - image_matrix [5] = height / 2 - image_height / 2; - - gnome_print_gsave (context); - gnome_print_concat (context, image_matrix); - - gnome_print_rgbaimage (context, image_pixels, image_width, image_height, image_rowstride); - gnome_print_grestore (context); - } - - gnome_print_stroke (context); - - if (gnome_print_translate(context, subcell_offset, 0) == -1) - /* FIXME */; - width -= subcell_offset; - } - - - e_cell_print (tree_view->subcell_view, context, model_col, view_col, row, width, height); -} - -static gdouble -ect_print_height (ECellView *ecell_view, GnomePrintContext *context, - int model_col, int view_col, int row, - double width) -{ - return 12; /* XXX */ -} - -/* - * GObject::dispose method - */ -static void -ect_dispose (GObject *object) -{ - ECellTree *ect = E_CELL_TREE (object); - - /* destroy our subcell */ - if (ect->subcell) - g_object_unref (ect->subcell); - ect->subcell = NULL; - - if (ect->open_pixbuf) - gdk_pixbuf_unref (ect->open_pixbuf); - ect->open_pixbuf = NULL; - - if (ect->closed_pixbuf) - gdk_pixbuf_unref (ect->closed_pixbuf); - ect->closed_pixbuf = NULL; - - G_OBJECT_CLASS (parent_class)->dispose (object); -} - -static void -e_cell_tree_class_init (GObjectClass *object_class) -{ - ECellClass *ecc = (ECellClass *) object_class; - - object_class->dispose = ect_dispose; - - ecc->new_view = ect_new_view; - ecc->kill_view = ect_kill_view; - ecc->realize = ect_realize; - ecc->unrealize = ect_unrealize; - ecc->draw = ect_draw; - ecc->event = ect_event; - ecc->height = ect_height; - ecc->enter_edit = ect_enter_edit; - ecc->leave_edit = ect_leave_edit; - ecc->print = ect_print; - ecc->print_height = ect_print_height; - ecc->max_width = ect_max_width; - ecc->show_tooltip = ect_show_tooltip; - ecc->get_bg_color = ect_get_bg_color; - - parent_class = g_type_class_ref (PARENT_TYPE); - - gal_a11y_e_cell_registry_add_cell_type (NULL, E_CELL_TREE_TYPE, gal_a11y_e_cell_tree_new); -} - -E_MAKE_TYPE(e_cell_tree, "ECellTree", ECellTree, e_cell_tree_class_init, NULL, PARENT_TYPE) - -/** - * e_cell_tree_construct: - * @ect: the ECellTree we're constructing. - * @open_pixbuf: pixbuf to be used instead of the '-' icon. - * @closed_pixbuf: pixbuf to be used instead of the '+' icon. - * @draw_lines: whether or not to draw the lines between parents/children/siblings. - * @subcell: the ECell to render to the right of the tree effects. - * - * Constructs an ECellTree. used by subclasses that need to - * initialize a nested ECellTree. See e_cell_tree_new() for more info. - * - **/ -void -e_cell_tree_construct (ECellTree *ect, - GdkPixbuf *open_pixbuf, - GdkPixbuf *closed_pixbuf, - gboolean draw_lines, - ECell *subcell) -{ - ect->subcell = subcell; - if (subcell) { - g_object_ref (subcell); - gtk_object_sink (GTK_OBJECT (subcell)); - } - if (open_pixbuf) - ect->open_pixbuf = open_pixbuf; - else - ect->open_pixbuf = gdk_pixbuf_new_from_xpm_data ((const char **)tree_expanded_xpm); - if (closed_pixbuf) - ect->closed_pixbuf = closed_pixbuf; - else - ect->closed_pixbuf = gdk_pixbuf_new_from_xpm_data ((const char **)tree_unexpanded_xpm); - - ect->draw_lines = draw_lines; -} - - -/** - * e_cell_tree_new: - * @open_pixbuf: pixbuf to be used instead of the '-' icon. - * @closed_pixbuf: pixbuf to be used instead of the '+' icon. - * @draw_lines: whether or not to draw the lines between parents/children/siblings. - * @subcell: the ECell to render to the right of the tree effects. - * - * Creates a new ECell renderer that can be used to render tree - * effects that come from an ETreeModel. Various assumptions are made - * as to the fact that the ETableModel the ETable this cell is - * associated with is in fact an ETreeModel. The cell uses special - * columns to get at structural information (needed to draw the - * lines/icons. - * - * Return value: an ECell object that can be used to render trees. - **/ -ECell * -e_cell_tree_new (GdkPixbuf *open_pixbuf, - GdkPixbuf *closed_pixbuf, - gboolean draw_lines, - ECell *subcell) -{ - ECellTree *ect = g_object_new (E_CELL_TREE_TYPE, NULL); - - e_cell_tree_construct (ect, open_pixbuf, closed_pixbuf, draw_lines, subcell); - - return (ECell *) ect; -} - |