diff options
Diffstat (limited to 'widgets/table/e-tree.c')
| -rw-r--r-- | widgets/table/e-tree.c | 2004 |
1 files changed, 2004 insertions, 0 deletions
diff --git a/widgets/table/e-tree.c b/widgets/table/e-tree.c new file mode 100644 index 0000000000..a434d54ea8 --- /dev/null +++ b/widgets/table/e-tree.c @@ -0,0 +1,2004 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * e-tree.c: A graphical view of a tree. + * + * Author: + * Miguel de Icaza (miguel@ximian.com) + * Chris Lahey <clahey@ximian.com> + * + * Copyright 1999, 2000, 2001, Ximian, Inc + */ +#include <config.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <stdio.h> +#include "gal/util/e-i18n.h" +#include <libgnomeui/gnome-canvas.h> +#include <gtk/gtksignal.h> + +#include "gal/util/e-util.h" +#include "gal/widgets/e-canvas.h" +#include "e-tree.h" +#include "e-table-header-item.h" +#include "e-table-header-utils.h" +#include "e-table-subset.h" +#include "e-table-item.h" +#include "e-table-group.h" +#include "e-table-group-leaf.h" +#include "e-table-specification.h" +#include "e-table-state.h" +#include "e-table-column-specification.h" + +#include "e-table-utils.h" + +#define COLUMN_HEADER_HEIGHT 16 + +#define PARENT_TYPE gtk_table_get_type () + +static GtkObjectClass *parent_class; + +enum { + CURSOR_CHANGE, + CURSOR_ACTIVATED, + SELECTION_CHANGE, + DOUBLE_CLICK, + RIGHT_CLICK, + CLICK, + KEY_PRESS, + + TREE_DRAG_BEGIN, + TREE_DRAG_END, + TREE_DRAG_DATA_GET, + TREE_DRAG_DATA_DELETE, + + TREE_DRAG_LEAVE, + TREE_DRAG_MOTION, + TREE_DRAG_DROP, + TREE_DRAG_DATA_RECEIVED, + + LAST_SIGNAL +}; + +enum { + ARG_0, + ARG_LENGTH_THRESHOLD, +}; + +static gint et_signals [LAST_SIGNAL] = { 0, }; + +static void et_grab_focus (GtkWidget *widget); + +static void et_drag_begin (GtkWidget *widget, + GdkDragContext *context, + ETree *et); +static void et_drag_end (GtkWidget *widget, + GdkDragContext *context, + ETree *et); +static void et_drag_data_get(GtkWidget *widget, + GdkDragContext *context, + GtkSelectionData *selection_data, + guint info, + guint time, + ETree *et); +static void et_drag_data_delete(GtkWidget *widget, + GdkDragContext *context, + ETree *et); + +static void et_drag_leave(GtkWidget *widget, + GdkDragContext *context, + guint time, + ETree *et); +static gboolean et_drag_motion(GtkWidget *widget, + GdkDragContext *context, + gint x, + gint y, + guint time, + ETree *et); +static gboolean et_drag_drop(GtkWidget *widget, + GdkDragContext *context, + gint x, + gint y, + guint time, + ETree *et); +static void et_drag_data_received(GtkWidget *widget, + GdkDragContext *context, + gint x, + gint y, + GtkSelectionData *selection_data, + guint info, + guint time, + ETree *et); +static gint e_tree_drag_source_event_cb (GtkWidget *widget, + GdkEvent *event, + ETree *tree); + +static gint et_focus (GtkContainer *container, GtkDirectionType direction); + +static void +et_destroy (GtkObject *object) +{ + ETree *et = E_TREE (object); + + if (et->reflow_idle_id) + g_source_remove(et->reflow_idle_id); + et->reflow_idle_id = 0; + + gtk_object_unref (GTK_OBJECT (et->model)); + gtk_object_unref (GTK_OBJECT (et->sorted)); + gtk_object_unref (GTK_OBJECT (et->full_header)); + gtk_object_unref (GTK_OBJECT (et->header)); + gtk_object_unref (GTK_OBJECT (et->sort_info)); + gtk_object_unref (GTK_OBJECT (et->selection)); + if (et->spec) + gtk_object_unref (GTK_OBJECT (et->spec)); + + if (et->header_canvas != NULL) + gtk_widget_destroy (GTK_WIDGET (et->header_canvas)); + + gtk_widget_destroy (GTK_WIDGET (et->table_canvas)); + + (*parent_class->destroy)(object); +} + +static void +e_tree_init (GtkObject *object) +{ + ETree *e_tree = E_TREE (object); + GtkTable *gtk_table = GTK_TABLE (object); + + GTK_WIDGET_SET_FLAGS (e_tree, GTK_CAN_FOCUS); + + gtk_table->homogeneous = FALSE; + + e_tree->sort_info = NULL; + e_tree->reflow_idle_id = 0; + + e_tree->draw_grid = 1; + e_tree->draw_focus = 1; + e_tree->cursor_mode = E_CURSOR_SIMPLE; + e_tree->length_threshold = 200; + + e_tree->horizontal_scrolling = FALSE; + + e_tree->drop_row = -1; + e_tree->drop_path = NULL; + e_tree->drop_col = -1; + + e_tree->drag_row = -1; + e_tree->drag_path = NULL; + e_tree->drag_col = -1; + + e_tree->site = NULL; + e_tree->drag_source_button_press_event_id = 0; + e_tree->drag_source_motion_notify_event_id = 0; + + e_tree->selection = e_table_selection_model_new(); + e_tree->spec = NULL; +} + +/* Grab_focus handler for the ETree */ +static void +et_grab_focus (GtkWidget *widget) +{ + ETree *e_tree; + + e_tree = E_TREE (widget); + + gtk_widget_grab_focus (GTK_WIDGET (e_tree->table_canvas)); +} + +/* Focus handler for the ETree */ +static gint +et_focus (GtkContainer *container, GtkDirectionType direction) +{ + ETree *e_tree; + + e_tree = E_TREE (container); + + if (container->focus_child) { + gtk_container_set_focus_child (container, NULL); + return FALSE; + } + + return gtk_container_focus (GTK_CONTAINER (e_tree->table_canvas), direction); +} + +static void +header_canvas_size_allocate (GtkWidget *widget, GtkAllocation *alloc, ETree *e_tree) +{ + gnome_canvas_set_scroll_region ( + GNOME_CANVAS (e_tree->header_canvas), + 0, 0, alloc->width - 1, /* COLUMN_HEADER_HEIGHT - 1 */ + E_TABLE_HEADER_ITEM (e_tree->header_item)->height - 1); + + /* When the header item is created ->height == 0, + as the font is only created when everything is realized. + So we set the usize here as well, so that the size of the + header is correct */ + if (GTK_WIDGET (e_tree->header_canvas)->allocation.height != + E_TABLE_HEADER_ITEM (e_tree->header_item)->height) + gtk_widget_set_usize (GTK_WIDGET (e_tree->header_canvas), -1, + E_TABLE_HEADER_ITEM (e_tree->header_item)->height); +} + +static void +e_tree_setup_header (ETree *e_tree) +{ + char *pointer; + e_tree->header_canvas = GNOME_CANVAS (e_canvas_new ()); + GTK_WIDGET_UNSET_FLAGS (e_tree->header_canvas, GTK_CAN_FOCUS); + + gtk_widget_show (GTK_WIDGET (e_tree->header_canvas)); + + pointer = g_strdup_printf("%p", e_tree); + + e_tree->header_item = gnome_canvas_item_new ( + gnome_canvas_root (e_tree->header_canvas), + e_table_header_item_get_type (), + "ETableHeader", e_tree->header, + "full_header", e_tree->full_header, + "sort_info", e_tree->sort_info, + "dnd_code", pointer, + /* "table", e_tree, FIXME*/ + NULL); + + g_free(pointer); + + gtk_signal_connect ( + GTK_OBJECT (e_tree->header_canvas), "size_allocate", + GTK_SIGNAL_FUNC (header_canvas_size_allocate), e_tree); + + gtk_widget_set_usize (GTK_WIDGET (e_tree->header_canvas), -1, + E_TABLE_HEADER_ITEM (e_tree->header_item)->height); +} + +static gboolean +tree_canvas_reflow_idle (ETree *e_tree) +{ + gdouble height, width; + gdouble item_height; + GtkAllocation *alloc = &(GTK_WIDGET (e_tree->table_canvas)->allocation); + + gtk_object_get (GTK_OBJECT (e_tree->item), + "height", &height, + "width", &width, + NULL); + item_height = height; + height = MAX ((int)height, alloc->height); + width = MAX((int)width, alloc->width); + /* I have no idea why this needs to be -1, but it works. */ + gnome_canvas_set_scroll_region ( + GNOME_CANVAS (e_tree->table_canvas), + 0, 0, width - 1, height - 1); + gtk_object_set (GTK_OBJECT (e_tree->white_item), + "y1", item_height + 1, + "x2", width, + "y2", height, + NULL); + e_tree->reflow_idle_id = 0; + return FALSE; +} + +static void +tree_canvas_size_allocate (GtkWidget *widget, GtkAllocation *alloc, + ETree *e_tree) +{ + gdouble width; + gdouble height; + gdouble item_height; + + width = alloc->width; + gtk_object_get (GTK_OBJECT (e_tree->item), + "height", &height, + NULL); + item_height = height; + height = MAX ((int)height, alloc->height); + + gtk_object_set (GTK_OBJECT (e_tree->item), + "width", width, + NULL); + gtk_object_set (GTK_OBJECT (e_tree->header), + "width", width, + NULL); + if (e_tree->reflow_idle_id) + g_source_remove(e_tree->reflow_idle_id); + tree_canvas_reflow_idle(e_tree); +} + +static void +tree_canvas_reflow (GnomeCanvas *canvas, ETree *e_tree) +{ + if (!e_tree->reflow_idle_id) + e_tree->reflow_idle_id = g_idle_add_full (400, (GSourceFunc) tree_canvas_reflow_idle, e_tree, NULL); +} + +static void +item_cursor_change (ETableItem *eti, int row, ETree *et) +{ + ETreePath path = e_tree_table_adapter_node_at_row(et->etta, row); + path = e_tree_sorted_view_to_model_path(et->sorted, path); + gtk_signal_emit (GTK_OBJECT (et), + et_signals [CURSOR_CHANGE], + row, path); +} + +static void +item_cursor_activated (ETableItem *eti, int row, ETree *et) +{ + ETreePath path = e_tree_table_adapter_node_at_row(et->etta, row); + path = e_tree_sorted_view_to_model_path(et->sorted, path); + gtk_signal_emit (GTK_OBJECT (et), + et_signals [CURSOR_ACTIVATED], + row, path); +} + +static void +item_double_click (ETableItem *eti, int row, int col, GdkEvent *event, ETree *et) +{ + ETreePath path = e_tree_table_adapter_node_at_row(et->etta, row); + path = e_tree_sorted_view_to_model_path(et->sorted, path); + gtk_signal_emit (GTK_OBJECT (et), + et_signals [DOUBLE_CLICK], + row, path, col, event); +} + +static gint +item_right_click (ETableItem *eti, int row, int col, GdkEvent *event, ETree *et) +{ + int return_val = 0; + ETreePath path = e_tree_table_adapter_node_at_row(et->etta, row); + path = e_tree_sorted_view_to_model_path(et->sorted, path); + gtk_signal_emit (GTK_OBJECT (et), + et_signals [RIGHT_CLICK], + row, path, col, event, &return_val); + return return_val; +} + +static gint +item_click (ETableItem *eti, int row, int col, GdkEvent *event, ETree *et) +{ + int return_val = 0; + ETreePath path = e_tree_table_adapter_node_at_row(et->etta, row); + path = e_tree_sorted_view_to_model_path(et->sorted, path); + gtk_signal_emit (GTK_OBJECT (et), + et_signals [CLICK], + row, path, col, event, &return_val); + return return_val; +} + +static gint +item_key_press (ETableItem *eti, int row, int col, GdkEvent *event, ETree *et) +{ + int return_val = 0; + ETreePath path = e_tree_table_adapter_node_at_row(et->etta, row); + GdkEventKey *key = (GdkEventKey *) event; + GdkEventButton click; + + path = e_tree_sorted_view_to_model_path(et->sorted, path); + + switch (key->keyval) { + case GDK_Page_Down: + gtk_adjustment_set_value( + gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas)), + CLAMP(gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->value + + (gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->page_size - 20), + 0, + gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->upper - + gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->page_size)); + click.type = GDK_BUTTON_PRESS; + click.window = GTK_LAYOUT (et->table_canvas)->bin_window; + click.send_event = key->send_event; + click.time = key->time; + click.x = 30; + click.y = gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->page_size - 1; + click.state = key->state; + click.button = 1; + gtk_widget_event(GTK_WIDGET(et->table_canvas), + (GdkEvent *) &click); + return_val = 1; + break; + case GDK_Page_Up: + gtk_adjustment_set_value( + gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas)), + gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->value - + (gtk_layout_get_vadjustment (GTK_LAYOUT (et->table_canvas))->page_size - 20)); + click.type = GDK_BUTTON_PRESS; + click.window = GTK_LAYOUT (et->table_canvas)->bin_window; + click.send_event = key->send_event; + click.time = key->time; + click.x = 30; + click.y = 1; + click.state = key->state; + click.button = 1; + gtk_widget_event(GTK_WIDGET(et->table_canvas), + (GdkEvent *) &click); + return_val = 1; + break; + default: + gtk_signal_emit (GTK_OBJECT (et), + et_signals [KEY_PRESS], + row, path, col, event, &return_val); + break; + } + return return_val; +} + +static void +et_selection_model_selection_change (ETableSelectionModel *etsm, ETable *et) +{ + gtk_signal_emit (GTK_OBJECT (et), + et_signals [SELECTION_CHANGE]); +} + +static void +et_build_item (ETree *et) +{ + et->item = gnome_canvas_item_new(GNOME_CANVAS_GROUP (gnome_canvas_root(et->table_canvas)), + e_table_item_get_type(), + "ETableHeader", et->header, + "ETableModel", et->etta, + "table_selection_model", et->selection, + "drawgrid", et->draw_grid, + "drawfocus", et->draw_focus, + "cursor_mode", et->cursor_mode, + "length_threshold", et->length_threshold, + NULL); + + gtk_signal_connect (GTK_OBJECT (et->item), "cursor_change", + GTK_SIGNAL_FUNC (item_cursor_change), et); + gtk_signal_connect (GTK_OBJECT (et->item), "cursor_activated", + GTK_SIGNAL_FUNC (item_cursor_activated), et); + gtk_signal_connect (GTK_OBJECT (et->item), "double_click", + GTK_SIGNAL_FUNC (item_double_click), et); + gtk_signal_connect (GTK_OBJECT (et->item), "right_click", + GTK_SIGNAL_FUNC (item_right_click), et); + gtk_signal_connect (GTK_OBJECT (et->item), "click", + GTK_SIGNAL_FUNC (item_click), et); + gtk_signal_connect (GTK_OBJECT (et->item), "key_press", + GTK_SIGNAL_FUNC (item_key_press), et); +} + +static void +et_canvas_realize (GtkWidget *canvas, ETree *e_tree) +{ + gnome_canvas_item_set( + e_tree->white_item, + "fill_color_gdk", >K_WIDGET(e_tree->table_canvas)->style->base[GTK_STATE_NORMAL], + NULL); +} + +static void +et_canvas_button_press (GtkWidget *canvas, GdkEvent *event, ETree *e_tree) +{ + if (GTK_WIDGET_HAS_FOCUS(canvas)) { + GnomeCanvasItem *item = GNOME_CANVAS(canvas)->focused_item; + + if (E_IS_TABLE_ITEM(item)) { + e_table_item_leave_edit(E_TABLE_ITEM(item)); + } + } +} + +static void +e_tree_setup_table (ETree *e_tree) +{ + e_tree->table_canvas = GNOME_CANVAS (e_canvas_new ()); + gtk_signal_connect ( + GTK_OBJECT (e_tree->table_canvas), "size_allocate", + GTK_SIGNAL_FUNC (tree_canvas_size_allocate), e_tree); + gtk_signal_connect ( + GTK_OBJECT (e_tree->table_canvas), "focus_in_event", + GTK_SIGNAL_FUNC (gtk_widget_queue_draw), e_tree); + gtk_signal_connect ( + GTK_OBJECT (e_tree->table_canvas), "focus_out_event", + GTK_SIGNAL_FUNC (gtk_widget_queue_draw), e_tree); + + gtk_signal_connect ( + GTK_OBJECT (e_tree), "drag_begin", + GTK_SIGNAL_FUNC (et_drag_begin), e_tree); + gtk_signal_connect ( + GTK_OBJECT (e_tree), "drag_end", + GTK_SIGNAL_FUNC (et_drag_end), e_tree); + gtk_signal_connect ( + GTK_OBJECT (e_tree), "drag_data_get", + GTK_SIGNAL_FUNC (et_drag_data_get), e_tree); + gtk_signal_connect ( + GTK_OBJECT (e_tree), "drag_data_delete", + GTK_SIGNAL_FUNC (et_drag_data_delete), e_tree); + gtk_signal_connect ( + GTK_OBJECT (e_tree), "drag_motion", + GTK_SIGNAL_FUNC (et_drag_motion), e_tree); + gtk_signal_connect ( + GTK_OBJECT (e_tree), "drag_leave", + GTK_SIGNAL_FUNC (et_drag_leave), e_tree); + gtk_signal_connect ( + GTK_OBJECT (e_tree), "drag_drop", + GTK_SIGNAL_FUNC (et_drag_drop), e_tree); + gtk_signal_connect ( + GTK_OBJECT (e_tree), "drag_data_received", + GTK_SIGNAL_FUNC (et_drag_data_received), e_tree); + + gtk_signal_connect (GTK_OBJECT(e_tree->table_canvas), "reflow", + GTK_SIGNAL_FUNC (tree_canvas_reflow), e_tree); + + gtk_widget_show (GTK_WIDGET (e_tree->table_canvas)); + + e_tree->white_item = gnome_canvas_item_new( + gnome_canvas_root(e_tree->table_canvas), + gnome_canvas_rect_get_type(), + "x1", (double) 0, + "y1", (double) 0, + "x2", (double) 100, + "y2", (double) 100, + "fill_color_gdk", >K_WIDGET(e_tree->table_canvas)->style->base[GTK_STATE_NORMAL], + NULL); + + gtk_signal_connect ( + GTK_OBJECT(e_tree->table_canvas), "realize", + GTK_SIGNAL_FUNC(et_canvas_realize), e_tree); + gtk_signal_connect ( + GTK_OBJECT(e_tree->table_canvas), "button_press_event", + GTK_SIGNAL_FUNC(et_canvas_button_press), e_tree); + + et_build_item(e_tree); +} + +void +e_tree_set_state_object(ETree *e_tree, ETableState *state) +{ + if (e_tree->header) + gtk_object_unref(GTK_OBJECT(e_tree->header)); + e_tree->header = e_table_state_to_header (GTK_WIDGET(e_tree), e_tree->full_header, state); + if (e_tree->header) + gtk_object_ref(GTK_OBJECT(e_tree->header)); + + gtk_object_set (GTK_OBJECT (e_tree->header), + "width", (double) (GTK_WIDGET(e_tree->table_canvas)->allocation.width), + NULL); + + if (e_tree->sort_info) + gtk_object_unref(GTK_OBJECT(e_tree->sort_info)); + + if (state->sort_info) + e_tree->sort_info = e_table_sort_info_duplicate(state->sort_info); + else + e_tree->sort_info = NULL; + + if (e_tree->header_item) + gtk_object_set(GTK_OBJECT(e_tree->header_item), + "ETableHeader", e_tree->header, + "sort_info", e_tree->sort_info, + NULL); + + if (e_tree->item) + gtk_object_set(GTK_OBJECT(e_tree->item), + "ETableHeader", e_tree->header, + NULL); + + if (e_tree->sorted) + gtk_object_set(GTK_OBJECT(e_tree->sorted), + "sort_info", e_tree->sort_info, + NULL); +} + +/** + * e_tree_set_state: + * @e_tree: %ETree object that will be modified + * @state_str: a string with the XML representation of the ETableState. + * + * This routine sets the state (as described by %ETableState) of the + * %ETree object. + */ +void +e_tree_set_state (ETree *e_tree, + const gchar *state_str) +{ + ETableState *state; + + g_return_if_fail(e_tree != NULL); + g_return_if_fail(E_IS_TREE(e_tree)); + g_return_if_fail(state_str != NULL); + + state = e_table_state_new(); + e_table_state_load_from_string(state, state_str); + + if (state->col_count > 0) + e_tree_set_state_object(e_tree, state); + + gtk_object_unref(GTK_OBJECT(state)); +} + +/** + * e_tree_load_state: + * @e_tree: %ETree object that will be modified + * @filename: name of the file containing the state to be loaded into the %ETree + * + * An %ETableState will be loaded form the file pointed by @filename into the + * @e_tree object. + */ +void +e_tree_load_state (ETree *e_tree, + const gchar *filename) +{ + ETableState *state; + + g_return_if_fail(e_tree != NULL); + g_return_if_fail(E_IS_TREE(e_tree)); + g_return_if_fail(filename != NULL); + + state = e_table_state_new(); + e_table_state_load_from_file(state, filename); + + if (state->col_count > 0) + e_tree_set_state_object(e_tree, state); + + gtk_object_unref(GTK_OBJECT(state)); +} + +/** + * e_tree_get_state_object: + * @e_tree: %ETree object that will be modified + * + * Returns: the %ETreeState object that encapsulates the current + * state of the @e_tree object + */ +ETableState * +e_tree_get_state_object (ETree *e_tree) +{ + ETableState *state; + int full_col_count; + int i, j; + + state = e_table_state_new(); + state->sort_info = e_tree->sort_info; + gtk_object_ref(GTK_OBJECT(state->sort_info)); + + state->col_count = e_table_header_count (e_tree->header); + full_col_count = e_table_header_count (e_tree->full_header); + state->columns = g_new(int, state->col_count); + state->expansions = g_new(double, state->col_count); + for (i = 0; i < state->col_count; i++) { + ETableCol *col = e_table_header_get_column(e_tree->header, i); + state->columns[i] = -1; + for (j = 0; j < full_col_count; j++) { + if (col->col_idx == e_table_header_index(e_tree->full_header, j)) { + state->columns[i] = j; + break; + } + } + state->expansions[i] = col->expansion; + } + + return state; +} + +gchar *e_tree_get_state (ETree *e_tree) +{ + ETableState *state; + gchar *string; + + state = e_tree_get_state_object(e_tree); + string = e_table_state_save_to_string(state); + gtk_object_unref(GTK_OBJECT(state)); + return string; +} + +/** + * e_tree_save_state: + * @e_tree: %ETree object that will be modified + * @filename: name of the file containing the state to be loaded into the %ETree + * + * This routine saves the state of the @e_tree object into the file pointed + * by @filename + */ +void +e_tree_save_state (ETree *e_tree, + const gchar *filename) +{ + ETableState *state; + + state = e_tree_get_state_object(e_tree); + e_table_state_save_to_file(state, filename); + gtk_object_unref(GTK_OBJECT(state)); +} + +static ETree * +et_real_construct (ETree *e_tree, ETreeModel *etm, ETableExtras *ete, + ETableSpecification *specification, ETableState *state) +{ + int row = 0; + + if (ete) + gtk_object_ref(GTK_OBJECT(ete)); + else + ete = e_table_extras_new(); + + e_tree->draw_grid = specification->draw_grid; + e_tree->draw_focus = specification->draw_focus; + e_tree->cursor_mode = specification->cursor_mode; + e_tree->full_header = e_table_spec_to_full_header(specification, ete); + + e_tree->header = e_table_state_to_header (GTK_WIDGET(e_tree), e_tree->full_header, state); + e_tree->horizontal_scrolling = specification->horizontal_scrolling; + + e_tree->sort_info = state->sort_info; + + gtk_object_set(GTK_OBJECT(e_tree->header), + "sort_info", e_tree->sort_info, + NULL); + + e_tree->model = etm; + gtk_object_ref (GTK_OBJECT (etm)); + + e_tree->sorted = e_tree_sorted_new(etm, e_tree->full_header, e_tree->sort_info); + + e_tree->etta = E_TREE_TABLE_ADAPTER(e_tree_table_adapter_new(E_TREE_MODEL(e_tree->sorted))); + + gtk_object_set(GTK_OBJECT(e_tree->selection), + "model", E_TABLE_MODEL(e_tree->etta), + "selection_mode", specification->selection_mode, + "cursor_mode", specification->cursor_mode, + NULL); + + gtk_widget_push_visual (gdk_rgb_get_visual ()); + gtk_widget_push_colormap (gdk_rgb_get_cmap ()); + + e_tree->sorter = e_sorter_new(); + + gtk_object_set (GTK_OBJECT (e_tree->selection), + "model", e_tree->etta, + "sorter", e_tree->sorter, + NULL); + + gtk_signal_connect(GTK_OBJECT(e_tree->selection), "selection_changed", + GTK_SIGNAL_FUNC(et_selection_model_selection_change), e_tree); + + if (!specification->no_headers) { + e_tree_setup_header (e_tree); + } + e_tree_setup_table (e_tree); + + gtk_layout_get_vadjustment (GTK_LAYOUT (e_tree->table_canvas))->step_increment = 20; + gtk_adjustment_changed(gtk_layout_get_vadjustment (GTK_LAYOUT (e_tree->table_canvas))); + + if (!specification->no_headers) { + /* + * The header + */ + gtk_table_attach (GTK_TABLE (e_tree), GTK_WIDGET (e_tree->header_canvas), + 0, 1, 0 + row, 1 + row, + GTK_FILL | GTK_EXPAND, + GTK_FILL, 0, 0); + row ++; + } + gtk_table_attach (GTK_TABLE (e_tree), GTK_WIDGET (e_tree->table_canvas), + 0, 1, 0 + row, 1 + row, + GTK_FILL | GTK_EXPAND, + GTK_FILL | GTK_EXPAND, + 0, 0); + + gtk_widget_pop_colormap (); + gtk_widget_pop_visual (); + + gtk_object_unref(GTK_OBJECT(ete)); + + return e_tree; +} + +ETree * +e_tree_construct (ETree *e_tree, ETreeModel *etm, ETableExtras *ete, + const char *spec_str, const char *state_str) +{ + ETableSpecification *specification; + ETableState *state; + + g_return_val_if_fail(e_tree != NULL, NULL); + g_return_val_if_fail(E_IS_TREE(e_tree), NULL); + g_return_val_if_fail(etm != NULL, NULL); + g_return_val_if_fail(E_IS_TREE_MODEL(etm), NULL); + g_return_val_if_fail(ete == NULL || E_IS_TABLE_EXTRAS(ete), NULL); + g_return_val_if_fail(spec_str != NULL, NULL); + + specification = e_table_specification_new(); + e_table_specification_load_from_string(specification, spec_str); + if (state_str) { + state = e_table_state_new(); + e_table_state_load_from_string(state, state_str); + if (state->col_count <= 0) { + gtk_object_unref(GTK_OBJECT(state)); + state = specification->state; + gtk_object_ref(GTK_OBJECT(state)); + } + } else { + state = specification->state; + gtk_object_ref(GTK_OBJECT(state)); + } + + e_tree = et_real_construct (e_tree, etm, ete, specification, state); + + e_tree->spec = specification; + gtk_object_unref(GTK_OBJECT(state)); + + return e_tree; +} + +ETree * +e_tree_construct_from_spec_file (ETree *e_tree, ETreeModel *etm, ETableExtras *ete, + const char *spec_fn, const char *state_fn) +{ + ETableSpecification *specification; + ETableState *state; + + g_return_val_if_fail(e_tree != NULL, NULL); + g_return_val_if_fail(E_IS_TREE(e_tree), NULL); + g_return_val_if_fail(etm != NULL, NULL); + g_return_val_if_fail(E_IS_TREE_MODEL(etm), NULL); + g_return_val_if_fail(ete == NULL || E_IS_TABLE_EXTRAS(ete), NULL); + g_return_val_if_fail(spec_fn != NULL, NULL); + + specification = e_table_specification_new(); + if (!e_table_specification_load_from_file(specification, spec_fn)) { + gtk_object_unref(GTK_OBJECT(specification)); + return NULL; + } + + if (state_fn) { + state = e_table_state_new(); + if (!e_table_state_load_from_file(state, state_fn)) { + gtk_object_unref(GTK_OBJECT(state)); + state = specification->state; + gtk_object_ref(GTK_OBJECT(state)); + } + if (state->col_count <= 0) { + gtk_object_unref(GTK_OBJECT(state)); + state = specification->state; + gtk_object_ref(GTK_OBJECT(state)); + } + } else { + state = specification->state; + gtk_object_ref(GTK_OBJECT(state)); + } + + e_tree = et_real_construct (e_tree, etm, ete, specification, state); + + e_tree->spec = specification; + gtk_object_unref(GTK_OBJECT(state)); + + return e_tree; +} + +GtkWidget * +e_tree_new (ETreeModel *etm, ETableExtras *ete, const char *spec, const char *state) +{ + ETree *e_tree; + + g_return_val_if_fail(etm != NULL, NULL); + g_return_val_if_fail(E_IS_TREE_MODEL(etm), NULL); + g_return_val_if_fail(ete == NULL || E_IS_TABLE_EXTRAS(ete), NULL); + g_return_val_if_fail(spec != NULL, NULL); + + e_tree = gtk_type_new (e_tree_get_type ()); + + e_tree = e_tree_construct (e_tree, etm, ete, spec, state); + + return GTK_WIDGET (e_tree); +} + +GtkWidget * +e_tree_new_from_spec_file (ETreeModel *etm, ETableExtras *ete, const char *spec_fn, const char *state_fn) +{ + ETree *e_tree; + + g_return_val_if_fail(etm != NULL, NULL); + g_return_val_if_fail(E_IS_TREE_MODEL(etm), NULL); + g_return_val_if_fail(ete == NULL || E_IS_TABLE_EXTRAS(ete), NULL); + g_return_val_if_fail(spec_fn != NULL, NULL); + + e_tree = gtk_type_new (e_tree_get_type ()); + + e_tree = e_tree_construct_from_spec_file (e_tree, etm, ete, spec_fn, state_fn); + + return GTK_WIDGET (e_tree); +} + +void +e_tree_set_cursor (ETree *e_tree, ETreePath path) +{ + int row; + g_return_if_fail(e_tree != NULL); + g_return_if_fail(E_IS_TREE(e_tree)); + g_return_if_fail(path != NULL); + + path = e_tree_sorted_model_to_view_path(e_tree->sorted, path); + + row = e_tree_table_adapter_row_of_node(E_TREE_TABLE_ADAPTER(e_tree->etta), path); + + if (row == -1) + return; + + gtk_object_set(GTK_OBJECT(e_tree->selection), + "cursor_row", row, + NULL); +} + +ETreePath +e_tree_get_cursor (ETree *e_tree) +{ + int row; + ETreePath path; + g_return_val_if_fail(e_tree != NULL, NULL); + g_return_val_if_fail(E_IS_TREE(e_tree), NULL); + + gtk_object_get(GTK_OBJECT(e_tree->selection), + "cursor_row", &row, + NULL); + path = e_tree_table_adapter_node_at_row(E_TREE_TABLE_ADAPTER(e_tree->etta), row); + path = e_tree_sorted_view_to_model_path(e_tree->sorted, path); + return path; +} + +void +e_tree_selected_row_foreach (ETree *e_tree, + EForeachFunc callback, + gpointer closure) +{ + g_return_if_fail(e_tree != NULL); + g_return_if_fail(E_IS_TREE(e_tree)); + + e_selection_model_foreach(E_SELECTION_MODEL (e_tree->selection), + callback, + closure); +} + +gint +e_tree_selected_count (ETree *e_tree) +{ + g_return_val_if_fail(e_tree != NULL, -1); + g_return_val_if_fail(E_IS_TREE(e_tree), -1); + + return e_selection_model_selected_count(E_SELECTION_MODEL (e_tree->selection)); +} + +void +e_tree_select_all (ETree *tree) +{ + g_return_if_fail (tree != NULL); + g_return_if_fail (E_IS_TREE (tree)); + + e_selection_model_select_all (E_SELECTION_MODEL (tree->selection)); +} + +void +e_tree_invert_selection (ETree *tree) +{ + g_return_if_fail (tree != NULL); + g_return_if_fail (E_IS_TREE (tree)); + + e_selection_model_invert_selection (E_SELECTION_MODEL (tree->selection)); +} + + +EPrintable * +e_tree_get_printable (ETree *e_tree) +{ + g_return_val_if_fail(e_tree != NULL, NULL); + g_return_val_if_fail(E_IS_TREE(e_tree), NULL); + + return e_table_item_get_printable(E_TABLE_ITEM(e_tree->item)); +} + +static void +et_get_arg (GtkObject *o, GtkArg *arg, guint arg_id) +{ + switch (arg_id){ + default: + break; + } +} + +typedef struct { + char *arg; + gboolean setting; +} bool_closure; + +static void +et_set_arg (GtkObject *o, GtkArg *arg, guint arg_id) +{ + ETree *etree = E_TREE (o); + + switch (arg_id){ + case ARG_LENGTH_THRESHOLD: + etree->length_threshold = GTK_VALUE_INT (*arg); + if (etree->item) { + gnome_canvas_item_set (GNOME_CANVAS_ITEM(etree->item), + "length_threshold", GTK_VALUE_INT (*arg), + NULL); + } + break; + + } +} + +static void +set_scroll_adjustments (ETree *tree, + GtkAdjustment *hadjustment, + GtkAdjustment *vadjustment) +{ + if (vadjustment != NULL) { + vadjustment->step_increment = 20; + gtk_adjustment_changed(vadjustment); + } + + gtk_layout_set_hadjustment (GTK_LAYOUT(tree->table_canvas), + hadjustment); + gtk_layout_set_vadjustment (GTK_LAYOUT(tree->table_canvas), + vadjustment); + + if (tree->header_canvas != NULL) + gtk_layout_set_hadjustment (GTK_LAYOUT(tree->header_canvas), + hadjustment); +} + +gint +e_tree_get_next_row (ETree *e_tree, + gint model_row) +{ + g_return_val_if_fail(e_tree != NULL, -1); + g_return_val_if_fail(E_IS_TREE(e_tree), -1); + + if (e_tree->sorter) { + int i; + i = e_sorter_model_to_sorted(E_SORTER (e_tree->sorter), model_row); + i++; + if (i < e_table_model_row_count(E_TABLE_MODEL(e_tree->etta))) { + return e_sorter_sorted_to_model(E_SORTER (e_tree->sorter), i); + } else + return -1; + } else + if (model_row < e_table_model_row_count(E_TABLE_MODEL(e_tree->etta)) - 1) + return model_row + 1; + else + return -1; +} + +gint +e_tree_get_prev_row (ETree *e_tree, + gint model_row) +{ + g_return_val_if_fail(e_tree != NULL, -1); + g_return_val_if_fail(E_IS_TREE(e_tree), -1); + + if (e_tree->sorter) { + int i; + i = e_sorter_model_to_sorted(E_SORTER (e_tree->sorter), model_row); + i--; + if (i >= 0) + return e_sorter_sorted_to_model(E_SORTER (e_tree->sorter), i); + else + return -1; + } else + return model_row - 1; +} + +gint +e_tree_model_to_view_row (ETree *e_tree, + gint model_row) +{ + g_return_val_if_fail(e_tree != NULL, -1); + g_return_val_if_fail(E_IS_TREE(e_tree), -1); + + if (e_tree->sorter) + return e_sorter_model_to_sorted(E_SORTER (e_tree->sorter), model_row); + else + return model_row; +} + +gint +e_tree_view_to_model_row (ETree *e_tree, + gint view_row) +{ + g_return_val_if_fail(e_tree != NULL, -1); + g_return_val_if_fail(E_IS_TREE(e_tree), -1); + + if (e_tree->sorter) + return e_sorter_sorted_to_model (E_SORTER (e_tree->sorter), view_row); + else + return view_row; +} + + +gboolean +e_tree_node_is_expanded (ETree *et, ETreePath path) +{ + path = e_tree_sorted_model_to_view_path(et->sorted, path); + + return e_tree_table_adapter_node_is_expanded (et->etta, path); +} + +void +e_tree_node_set_expanded (ETree *et, ETreePath path, gboolean expanded) +{ + g_return_if_fail (et != NULL); + g_return_if_fail (E_IS_TREE(et)); + + path = e_tree_sorted_model_to_view_path(et->sorted, path); + + e_tree_table_adapter_node_set_expanded (et->etta, path, expanded); +} + +void +e_tree_node_set_expanded_recurse (ETree *et, ETreePath path, gboolean expanded) +{ + g_return_if_fail (et != NULL); + g_return_if_fail (E_IS_TREE(et)); + + path = e_tree_sorted_model_to_view_path(et->sorted, path); + + e_tree_table_adapter_node_set_expanded_recurse (et->etta, path, expanded); +} + +void +e_tree_root_node_set_visible (ETree *et, gboolean visible) +{ + g_return_if_fail (et != NULL); + g_return_if_fail (E_IS_TREE(et)); + + e_tree_table_adapter_root_node_set_visible (et->etta, visible); +} + +ETreePath +e_tree_node_at_row (ETree *et, int row) +{ + ETreePath path; + + path = e_tree_table_adapter_node_at_row (et->etta, row); + path = e_tree_sorted_view_to_model_path(et->sorted, path); + + return path; +} + +int +e_tree_row_of_node (ETree *et, ETreePath path) +{ + path = e_tree_sorted_model_to_view_path(et->sorted, path); + return e_tree_table_adapter_row_of_node (et->etta, path); +} + +gboolean +e_tree_root_node_is_visible(ETree *et) +{ + return e_tree_table_adapter_root_node_is_visible (et->etta); +} + +void +e_tree_show_node (ETree *et, ETreePath path) +{ + g_return_if_fail (et != NULL); + g_return_if_fail (E_IS_TREE(et)); + + path = e_tree_sorted_model_to_view_path(et->sorted, path); + + e_tree_table_adapter_show_node (et->etta, path); +} + +void +e_tree_save_expanded_state (ETree *et, char *filename) +{ + g_return_if_fail (et != NULL); + g_return_if_fail (E_IS_TREE(et)); + + e_tree_table_adapter_save_expanded_state (et->etta, filename); +} + +void +e_tree_load_expanded_state (ETree *et, char *filename) +{ + e_tree_table_adapter_load_expanded_state (et->etta, filename); +} + +gint +e_tree_row_count (ETree *et) +{ + return e_table_model_row_count (E_TABLE_MODEL(et->etta)); +} + +struct _ETreeDragSourceSite +{ + GdkModifierType start_button_mask; + GtkTargetList *target_list; /* Targets for drag data */ + GdkDragAction actions; /* Possible actions */ + GdkColormap *colormap; /* Colormap for drag icon */ + GdkPixmap *pixmap; /* Icon for drag data */ + GdkBitmap *mask; + + /* Stored button press information to detect drag beginning */ + gint state; + gint x, y; + gint row, col; +}; + +typedef enum +{ + GTK_DRAG_STATUS_DRAG, + GTK_DRAG_STATUS_WAIT, + GTK_DRAG_STATUS_DROP +} GtkDragStatus; + +typedef struct _GtkDragDestInfo GtkDragDestInfo; +typedef struct _GtkDragSourceInfo GtkDragSourceInfo; + +struct _GtkDragDestInfo +{ + GtkWidget *widget; /* Widget in which drag is in */ + GdkDragContext *context; /* Drag context */ + GtkDragSourceInfo *proxy_source; /* Set if this is a proxy drag */ + GtkSelectionData *proxy_data; /* Set while retrieving proxied data */ + gboolean dropped : 1; /* Set after we receive a drop */ + guint32 proxy_drop_time; /* Timestamp for proxied drop */ + gboolean proxy_drop_wait : 1; /* Set if we are waiting for a + * status reply before sending + * a proxied drop on. + */ + gint drop_x, drop_y; /* Position of drop */ +}; + +struct _GtkDragSourceInfo +{ + GtkWidget *widget; + GtkTargetList *target_list; /* Targets for drag data */ + GdkDragAction possible_actions; /* Actions allowed by source */ + GdkDragContext *context; /* drag context */ + GtkWidget *icon_window; /* Window for drag */ + GtkWidget *ipc_widget; /* GtkInvisible for grab, message passing */ + GdkCursor *cursor; /* Cursor for drag */ + gint hot_x, hot_y; /* Hot spot for drag */ + gint button; /* mouse button starting drag */ + + GtkDragStatus status; /* drag status */ + GdkEvent *last_event; /* motion event waiting for response */ + + gint start_x, start_y; /* Initial position */ + gint cur_x, cur_y; /* Current Position */ + + GList *selections; /* selections we've claimed */ + + GtkDragDestInfo *proxy_dest; /* Set if this is a proxy drag */ + + guint drop_timeout; /* Timeout for aborting drop */ + guint destroy_icon : 1; /* If true, destroy icon_window + */ +}; + +/* Drag & drop stuff. */ +/* Target */ +void +e_tree_drag_get_data (ETree *tree, + int row, + int col, + GdkDragContext *context, + GdkAtom target, + guint32 time) +{ + ETreePath path; + g_return_if_fail(tree != NULL); + g_return_if_fail(E_IS_TREE(tree)); + + path = e_tree_table_adapter_node_at_row(tree->etta, row); + path = e_tree_sorted_view_to_model_path(tree->sorted, path); + + gtk_drag_get_data(GTK_WIDGET(tree), + context, + target, + time); + +} + +/** + * e_tree_drag_highlight: + * @tree: + * @row: + * @col: + * + * Set col to -1 to highlight the entire row. + */ +void +e_tree_drag_highlight (ETree *tree, + int row, + int col) +{ + g_return_if_fail(tree != NULL); + g_return_if_fail(E_IS_TREE(tree)); +} + +void +e_tree_drag_unhighlight (ETree *tree) +{ + g_return_if_fail(tree != NULL); + g_return_if_fail(E_IS_TREE(tree)); +} + +void e_tree_drag_dest_set (ETree *tree, + GtkDestDefaults flags, + const GtkTargetEntry *targets, + gint n_targets, + GdkDragAction actions) +{ + g_return_if_fail(tree != NULL); + g_return_if_fail(E_IS_TREE(tree)); + + gtk_drag_dest_set(GTK_WIDGET(tree), + flags, + targets, + n_targets, + actions); +} + +void e_tree_drag_dest_set_proxy (ETree *tree, + GdkWindow *proxy_window, + GdkDragProtocol protocol, + gboolean use_coordinates) +{ + g_return_if_fail(tree != NULL); + g_return_if_fail(E_IS_TREE(tree)); + + gtk_drag_dest_set_proxy(GTK_WIDGET(tree), + proxy_window, + protocol, + use_coordinates); +} + +/* + * There probably should be functions for setting the targets + * as a GtkTargetList + */ + +void +e_tree_drag_dest_unset (GtkWidget *widget) +{ + g_return_if_fail(widget != NULL); + g_return_if_fail(E_IS_TREE(widget)); + + gtk_drag_dest_unset(widget); +} + +/* Source side */ + +void +e_tree_drag_source_set (ETree *tree, + GdkModifierType start_button_mask, + const GtkTargetEntry *targets, + gint n_targets, + GdkDragAction actions) +{ + ETreeDragSourceSite *site; + GtkWidget *canvas; + + g_return_if_fail(tree != NULL); + g_return_if_fail(E_IS_TREE(tree)); + + canvas = GTK_WIDGET(tree->table_canvas); + site = tree->site; + + gtk_widget_add_events (canvas, + gtk_widget_get_events (canvas) | + GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | + GDK_BUTTON_MOTION_MASK | GDK_STRUCTURE_MASK); + + if (site) { + if (site->target_list) + gtk_target_list_unref (site->target_list); + } else { + site = g_new0 (ETreeDragSourceSite, 1); + + tree->drag_source_button_press_event_id = + gtk_signal_connect (GTK_OBJECT (canvas), "button_press_event", + GTK_SIGNAL_FUNC (e_tree_drag_source_event_cb), + tree); + tree->drag_source_motion_notify_event_id = + gtk_signal_connect (GTK_OBJECT (canvas), "motion_notify_event", + GTK_SIGNAL_FUNC (e_tree_drag_source_event_cb), + tree); + + tree->site = site; + } + + site->start_button_mask = start_button_mask; + + if (targets) + site->target_list = gtk_target_list_new (targets, n_targets); + else + site->target_list = NULL; + + site->actions = actions; +} + +void +e_tree_drag_source_unset (ETree *tree) +{ + ETreeDragSourceSite *site; + + g_return_if_fail (tree != NULL); + g_return_if_fail (E_IS_TREE(tree)); + + site = tree->site; + + if (site) { + gtk_signal_disconnect ( + GTK_OBJECT (tree->table_canvas), + tree->drag_source_button_press_event_id); + gtk_signal_disconnect ( + GTK_OBJECT (tree->table_canvas), + tree->drag_source_motion_notify_event_id); + g_free (site); + tree->site = NULL; + } +} + +/* There probably should be functions for setting the targets + * as a GtkTargetList + */ + +GdkDragContext * +e_tree_drag_begin (ETree *tree, + int row, + int col, + GtkTargetList *targets, + GdkDragAction actions, + gint button, + GdkEvent *event) +{ + ETreePath path; + g_return_val_if_fail (tree != NULL, NULL); + g_return_val_if_fail (E_IS_TREE(tree), NULL); + + path = e_tree_table_adapter_node_at_row(tree->etta, row); + path = e_tree_sorted_view_to_model_path(tree->sorted, path); + + tree->drag_row = row; + tree->drag_path = path; + tree->drag_col = col; + + return gtk_drag_begin(GTK_WIDGET(tree), + targets, + actions, + button, + event); +} + +/** + * e_tree_get_cell_at: + * @tree: An ETree widget + * @x: X coordinate for the pixel + * @y: Y coordinate for the pixel + * @row_return: Pointer to return the row value + * @col_return: Pointer to return the column value + * + * Return the row and column for the cell in which the pixel at (@x, @y) is + * contained. + **/ +void +e_tree_get_cell_at (ETree *tree, + int x, int y, + int *row_return, int *col_return) +{ + g_return_if_fail (tree != NULL); + g_return_if_fail (E_IS_TREE (tree)); + g_return_if_fail (row_return != NULL); + g_return_if_fail (col_return != NULL); + + /* FIXME it would be nice if it could handle a NULL row_return or + * col_return gracefully. */ + + x += GTK_LAYOUT(tree->table_canvas)->hadjustment->value; + y += GTK_LAYOUT(tree->table_canvas)->vadjustment->value; + e_table_item_compute_location(E_TABLE_ITEM(tree->item), &x, &y, row_return, col_return); +} + +static void +et_drag_begin (GtkWidget *widget, + GdkDragContext *context, + ETree *et) +{ + gtk_signal_emit (GTK_OBJECT (et), + et_signals [TREE_DRAG_BEGIN], + et->drag_row, + et->drag_path, + et->drag_col, + context); +} + +static void +et_drag_end (GtkWidget *widget, + GdkDragContext *context, + ETree *et) +{ + gtk_signal_emit (GTK_OBJECT (et), + et_signals [TREE_DRAG_END], + et->drag_row, + et->drag_path, + et->drag_col, + context); +} + +static void +et_drag_data_get(GtkWidget *widget, + GdkDragContext *context, + GtkSelectionData *selection_data, + guint info, + guint time, + ETree *et) +{ + gtk_signal_emit (GTK_OBJECT (et), + et_signals [TREE_DRAG_DATA_GET], + et->drag_row, + et->drag_path, + et->drag_col, + context, + selection_data, + info, + time); +} + +static void +et_drag_data_delete(GtkWidget *widget, + GdkDragContext *context, + ETree *et) +{ + gtk_signal_emit (GTK_OBJECT (et), + et_signals [TREE_DRAG_DATA_DELETE], + et->drag_row, + et->drag_path, + et->drag_col, + context); +} + +static void +et_drag_leave(GtkWidget *widget, + GdkDragContext *context, + guint time, + ETree *et) +{ + gtk_signal_emit (GTK_OBJECT (et), + et_signals [TREE_DRAG_LEAVE], + et->drop_row, + et->drop_path, + et->drop_col, + context, + time); + et->drop_row = -1; + et->drop_col = -1; +} + +static gboolean +et_drag_motion(GtkWidget *widget, + GdkDragContext *context, + gint x, + gint y, + guint time, + ETree *et) +{ + gboolean ret_val; + int row, col; + ETreePath path; + e_tree_get_cell_at (et, + x, + y, + &row, + &col); + if (et->drop_row >= 0 && et->drop_col >= 0 && + row != et->drop_row && col != et->drop_row) { + gtk_signal_emit (GTK_OBJECT (et), + et_signals [TREE_DRAG_LEAVE], + et->drop_row, + et->drop_path, + et->drop_col, + context, + time); + } + + path = e_tree_table_adapter_node_at_row(et->etta, row); + path = e_tree_sorted_view_to_model_path(et->sorted, path); + + et->drop_row = row; + et->drop_path = path; + et->drop_col = col; + if (row >= 0 && col >= 0) + gtk_signal_emit (GTK_OBJECT (et), + et_signals [TREE_DRAG_MOTION], + et->drop_row, + et->drop_path, + et->drop_col, + context, + x, + y, + time, + &ret_val); + return ret_val; +} + +static gboolean +et_drag_drop(GtkWidget *widget, + GdkDragContext *context, + gint x, + gint y, + guint time, + ETree *et) +{ + gboolean ret_val; + int row, col; + ETreePath path; + e_tree_get_cell_at(et, + x, + y, + &row, + &col); + path = e_tree_table_adapter_node_at_row(et->etta, row); + path = e_tree_sorted_view_to_model_path(et->sorted, path); + + if (et->drop_row >= 0 && et->drop_col >= 0 && + row != et->drop_row && col != et->drop_row) { + gtk_signal_emit (GTK_OBJECT (et), + et_signals [TREE_DRAG_LEAVE], + et->drop_row, + et->drop_path, + et->drop_col, + context, + time); + if (row >= 0 && col >= 0) + gtk_signal_emit (GTK_OBJECT (et), + et_signals [TREE_DRAG_MOTION], + row, + path, + col, + context, + x, + y, + time, + &ret_val); + } + et->drop_row = row; + et->drop_path = path; + et->drop_col = col; + if (row >= 0 && col >= 0) + gtk_signal_emit (GTK_OBJECT (et), + et_signals [TREE_DRAG_DROP], + et->drop_row, + et->drop_path, + et->drop_col, + context, + x, + y, + time, + &ret_val); + et->drop_row = -1; + et->drop_path = NULL; + et->drop_col = -1; + return ret_val; +} + +static void +et_drag_data_received(GtkWidget *widget, + GdkDragContext *context, + gint x, + gint y, + GtkSelectionData *selection_data, + guint info, + guint time, + ETree *et) +{ + int row, col; + ETreePath path; + e_tree_get_cell_at(et, + x, + y, + &row, + &col); + path = e_tree_table_adapter_node_at_row(et->etta, row); + path = e_tree_sorted_view_to_model_path(et->sorted, path); + gtk_signal_emit (GTK_OBJECT (et), + et_signals [TREE_DRAG_DATA_RECEIVED], + row, + path, + col, + context, + x, + y, + selection_data, + info, + time); +} + +static gint +e_tree_drag_source_event_cb (GtkWidget *widget, + GdkEvent *event, + ETree *tree) +{ + ETreeDragSourceSite *site; + site = tree->site; + + switch (event->type) { + case GDK_BUTTON_PRESS: + if ((GDK_BUTTON1_MASK << (event->button.button - 1)) & site->start_button_mask) { + int row, col; + e_tree_get_cell_at(tree, event->button.x, event->button.y, &row, &col); + if (row >= 0 && col >= 0) { + site->state |= (GDK_BUTTON1_MASK << (event->button.button - 1)); + site->x = event->button.x; + site->y = event->button.y; + site->row = row; + site->col = col; + } + } + break; + + case GDK_BUTTON_RELEASE: + if ((GDK_BUTTON1_MASK << (event->button.button - 1)) & site->start_button_mask) { + site->state &= ~(GDK_BUTTON1_MASK << (event->button.button - 1)); + } + break; + + case GDK_MOTION_NOTIFY: + if (site->state & event->motion.state & site->start_button_mask) { + /* FIXME: This is really broken and can leave us + * with a stuck grab + */ + int i; + for (i=1; i<6; i++) { + if (site->state & event->motion.state & + GDK_BUTTON1_MASK << (i - 1)) + break; + } + + if (MAX (abs (site->x - event->motion.x), + abs (site->y - event->motion.y)) > 3) { + GtkDragSourceInfo *info; + GdkDragContext *context; + + site->state = 0; + context = e_tree_drag_begin (tree, site->row, site->col, + site->target_list, + site->actions, + i, event); + + + info = g_dataset_get_data (context, "gtk-info"); + + if (!info->icon_window) { + if (site->pixmap) + gtk_drag_set_icon_pixmap (context, + site->colormap, + site->pixmap, + site->mask, -2, -2); + else + gtk_drag_set_icon_default (context); + } + + return TRUE; + } + } + break; + + default: /* hit for 2/3BUTTON_PRESS */ + break; + } + return FALSE; +} + +static void +e_tree_class_init (ETreeClass *class) +{ + GtkObjectClass *object_class; + GtkWidgetClass *widget_class; + GtkContainerClass *container_class; + + object_class = (GtkObjectClass *) class; + widget_class = (GtkWidgetClass *) class; + container_class = (GtkContainerClass *) class; + + parent_class = gtk_type_class (PARENT_TYPE); + + object_class->destroy = et_destroy; + object_class->set_arg = et_set_arg; + object_class->get_arg = et_get_arg; + + widget_class->grab_focus = et_grab_focus; + + container_class->focus = et_focus; + + class->cursor_change = NULL; + class->cursor_activated = NULL; + class->selection_change = NULL; + class->double_click = NULL; + class->right_click = NULL; + class->click = NULL; + class->key_press = NULL; + + class->tree_drag_begin = NULL; + class->tree_drag_end = NULL; + class->tree_drag_data_get = NULL; + class->tree_drag_data_delete = NULL; + + class->tree_drag_leave = NULL; + class->tree_drag_motion = NULL; + class->tree_drag_drop = NULL; + class->tree_drag_data_received = NULL; + + et_signals [CURSOR_CHANGE] = + gtk_signal_new ("cursor_change", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, cursor_change), + gtk_marshal_NONE__POINTER_INT, + GTK_TYPE_NONE, 2, GTK_TYPE_POINTER, GTK_TYPE_INT); + + et_signals [CURSOR_ACTIVATED] = + gtk_signal_new ("cursor_activated", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, cursor_activated), + gtk_marshal_NONE__POINTER_INT, + GTK_TYPE_NONE, 2, GTK_TYPE_POINTER, GTK_TYPE_INT); + + et_signals [SELECTION_CHANGE] = + gtk_signal_new ("selection_change", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, selection_change), + gtk_marshal_NONE__NONE, + GTK_TYPE_NONE, 0); + + et_signals [DOUBLE_CLICK] = + gtk_signal_new ("double_click", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, double_click), + e_marshal_NONE__INT_POINTER_INT_POINTER, + GTK_TYPE_NONE, 4, GTK_TYPE_INT, GTK_TYPE_POINTER, GTK_TYPE_INT, GTK_TYPE_POINTER); + + et_signals [RIGHT_CLICK] = + gtk_signal_new ("right_click", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, right_click), + e_marshal_INT__INT_POINTER_INT_POINTER, + GTK_TYPE_INT, 4, GTK_TYPE_INT, GTK_TYPE_POINTER, GTK_TYPE_INT, GTK_TYPE_POINTER); + + et_signals [CLICK] = + gtk_signal_new ("click", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, click), + e_marshal_INT__INT_POINTER_INT_POINTER, + GTK_TYPE_INT, 4, GTK_TYPE_INT, GTK_TYPE_POINTER, GTK_TYPE_INT, GTK_TYPE_POINTER); + + et_signals [KEY_PRESS] = + gtk_signal_new ("key_press", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, key_press), + e_marshal_INT__INT_POINTER_INT_POINTER, + GTK_TYPE_INT, 4, GTK_TYPE_INT, GTK_TYPE_POINTER, GTK_TYPE_INT, GTK_TYPE_POINTER); + + et_signals[TREE_DRAG_BEGIN] = + gtk_signal_new ("tree_drag_begin", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, tree_drag_begin), + e_marshal_NONE__INT_POINTER_INT_POINTER, + GTK_TYPE_NONE, 4, + GTK_TYPE_INT, + GTK_TYPE_POINTER, + GTK_TYPE_INT, + GTK_TYPE_GDK_DRAG_CONTEXT); + et_signals[TREE_DRAG_END] = + gtk_signal_new ("tree_drag_end", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, tree_drag_end), + e_marshal_NONE__INT_POINTER_INT_POINTER, + GTK_TYPE_NONE, 4, + GTK_TYPE_INT, + GTK_TYPE_POINTER, + GTK_TYPE_INT, + GTK_TYPE_GDK_DRAG_CONTEXT); + et_signals[TREE_DRAG_DATA_GET] = + gtk_signal_new ("tree_drag_data_get", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, tree_drag_data_get), + e_marshal_NONE__INT_POINTER_INT_POINTER_POINTER_UINT_UINT, + GTK_TYPE_NONE, 7, + GTK_TYPE_INT, + GTK_TYPE_POINTER, + GTK_TYPE_INT, + GTK_TYPE_GDK_DRAG_CONTEXT, + GTK_TYPE_SELECTION_DATA, + GTK_TYPE_UINT, + GTK_TYPE_UINT); + et_signals[TREE_DRAG_DATA_DELETE] = + gtk_signal_new ("tree_drag_data_delete", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, tree_drag_data_delete), + e_marshal_NONE__INT_POINTER_INT_POINTER, + GTK_TYPE_NONE, 4, + GTK_TYPE_INT, + GTK_TYPE_POINTER, + GTK_TYPE_INT, + GTK_TYPE_GDK_DRAG_CONTEXT); + + et_signals[TREE_DRAG_LEAVE] = + gtk_signal_new ("tree_drag_leave", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, tree_drag_leave), + e_marshal_NONE__INT_POINTER_INT_POINTER_UINT, + GTK_TYPE_NONE, 5, + GTK_TYPE_INT, + GTK_TYPE_POINTER, + GTK_TYPE_INT, + GTK_TYPE_GDK_DRAG_CONTEXT, + GTK_TYPE_UINT); + et_signals[TREE_DRAG_MOTION] = + gtk_signal_new ("tree_drag_motion", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, tree_drag_motion), + e_marshal_BOOL__INT_POINTER_INT_POINTER_INT_INT_UINT, + GTK_TYPE_BOOL, 7, + GTK_TYPE_INT, + GTK_TYPE_POINTER, + GTK_TYPE_INT, + GTK_TYPE_GDK_DRAG_CONTEXT, + GTK_TYPE_INT, + GTK_TYPE_INT, + GTK_TYPE_UINT); + et_signals[TREE_DRAG_DROP] = + gtk_signal_new ("tree_drag_drop", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, tree_drag_drop), + e_marshal_BOOL__INT_POINTER_INT_POINTER_INT_INT_UINT, + GTK_TYPE_BOOL, 7, + GTK_TYPE_INT, + GTK_TYPE_POINTER, + GTK_TYPE_INT, + GTK_TYPE_GDK_DRAG_CONTEXT, + GTK_TYPE_INT, + GTK_TYPE_INT, + GTK_TYPE_UINT); + et_signals[TREE_DRAG_DATA_RECEIVED] = + gtk_signal_new ("tree_drag_data_received", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, tree_drag_data_received), + e_marshal_NONE__INT_POINTER_INT_POINTER_INT_INT_POINTER_UINT_UINT, + GTK_TYPE_NONE, 9, + GTK_TYPE_INT, + GTK_TYPE_POINTER, + GTK_TYPE_INT, + GTK_TYPE_GDK_DRAG_CONTEXT, + GTK_TYPE_INT, + GTK_TYPE_INT, + GTK_TYPE_SELECTION_DATA, + GTK_TYPE_UINT, + GTK_TYPE_UINT); + + gtk_object_class_add_signals (object_class, et_signals, LAST_SIGNAL); + + class->set_scroll_adjustments = set_scroll_adjustments; + + widget_class->set_scroll_adjustments_signal = + gtk_signal_new ("set_scroll_adjustments", + GTK_RUN_LAST, + object_class->type, + GTK_SIGNAL_OFFSET (ETreeClass, set_scroll_adjustments), + gtk_marshal_NONE__POINTER_POINTER, + GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT); + + gtk_object_add_arg_type ("ETree::length_threshold", GTK_TYPE_INT, + GTK_ARG_WRITABLE, ARG_LENGTH_THRESHOLD); +} + +E_MAKE_TYPE(e_tree, "ETree", ETree, e_tree_class_init, e_tree_init, PARENT_TYPE); |