More work. We now have the basics for nesting working, now we need all the

More work.  We now have the basics for nesting working, now we need all
the interactions done properly.

I want to use a new GnomeCanvasItem for the nesting parent as well.

DnD will have to be done with our own protocol to provide all the feedback
we want to provide.

Miguel

svn path=/trunk/; revision=1481

1 files changed, 479 insertions, 4 deletions

diff --git a/widgets/e-table/e-table.c b/widgets/e-table/e-table.c
index 3b13e87d6b..f9a41a38fc 100644
--- a/widgets/e-table/e-table.c
+++ b/widgets/e-table/e-table.c
@@ -7,16 +7,491 @@
  * Copyright 1999, Helix Code, Inc
  */
 #include <config.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <alloca.h>
+#include <stdio.h>
 #include <libgnomeui/gnome-canvas.h>
+#include <gtk/gtksignal.h>
 #include "e-table.h"
 #include "e-util.h"
+#include "e-table-header-item.h"
+#include "e-table-subset.h"
+#include "e-table-item.h"
 
-#define PARENT_OBJECT_TYPE gnome_canvas_get_type ()
+#define COLUMN_HEADER_HEIGHT 16
+#define TITLE_HEIGHT         16
+#define GROUP_INDENT         10
 
-E_MAKE_TYPE(e_table, "ETable", ETable, e_table_class_init, NULL, PARENT_TYPE);
+#define PARENT_TYPE gtk_table_get_type ()
 
-ETable *
-e_table_new (ETableHeader *eth, ETableModel *etm)
+static GtkObjectClass *e_table_parent_class;
+
+typedef struct {
+	ETableModel     *table;
+	GnomeCanvasItem *table_item;
+	GnomeCanvasItem *rect;
+} Leaf;
+
+typedef struct {
+} Node;
+
+
+static void
+et_destroy (GtkObject *object)
+{
+	ETable *et = E_TABLE (object);
+	
+	gtk_object_unref (GTK_OBJECT (et->model));
+	gtk_object_unref (GTK_OBJECT (et->full_header));
+	gtk_object_unref (GTK_OBJECT (et->header));
+
+	g_free (et->group_spec);
+	
+	(*e_table_parent_class->destroy)(object);
+}
+
+static void
+e_table_init (GtkObject *object)
+{
+	ETable *e_table = E_TABLE (object);
+
+	e_table->draw_grid = 1;
+	e_table->draw_focus = 1;
+	e_table->spreadsheet = 1;
+}
+
+static ETableHeader *
+e_table_make_header (ETable *e_table, ETableHeader *full_header, const char *cols)
+{
+	ETableHeader *nh;
+	char *copy = alloca (strlen (cols) + 1);
+	char *p, *state;
+	const int max_cols = e_table_header_count (full_header);
+	
+	nh = e_table_header_new ();
+	strcpy (copy, cols);
+	while ((p = strtok_r (copy, ",", &state)) != NULL){
+		int col = atoi (p);
+
+		copy = NULL;
+		if (col >= max_cols)
+			continue;
+
+		e_table_header_add_column (nh, e_table_header_get_column (full_header, col), -1);
+	}
+	
+	return nh;
+}
+
+static void
+e_table_setup_header (ETable *e_table)
+{
+	e_table->header_canvas = GNOME_CANVAS (gnome_canvas_new ());
+
+	gtk_widget_show (GTK_WIDGET (e_table->header_canvas));
+
+	e_table->header_item = gnome_canvas_item_new (
+		gnome_canvas_root (e_table->header_canvas),
+		e_table_header_item_get_type (),
+		"ETableHeader", e_table->header,
+		"x", 0,
+		"y", 0,
+		NULL);
+
+	gtk_widget_set_usize (GTK_WIDGET (e_table->header_canvas), -1, COLUMN_HEADER_HEIGHT);
+	g_warning ("Aqui");
+	e_table->header_canvas = 0;
+	
+	gtk_table_attach (
+		GTK_TABLE (e_table), GTK_WIDGET (e_table->header_canvas),
+		0, 1, 0, 1, GTK_FILL | GTK_EXPAND, 0, 0, 0);
+		
+}
+
+static Leaf *
+e_table_create_leaf (ETable *e_table, int x_off, int y_off, ETableModel *etm)
+{
+	Leaf *leaf;
+	int height;
+	
+	leaf = g_new (Leaf, 1);
+	leaf->table = etm;
+	
+	leaf->table_item = gnome_canvas_item_new (
+		gnome_canvas_root (e_table->table_canvas),
+		e_table_item_get_type (),
+		"ETableHeader", e_table->header,
+		"ETableModel",  etm,
+		"x", x_off + GROUP_INDENT,
+		"y", y_off + TITLE_HEIGHT,
+		"drawgrid", e_table->draw_grid,
+		"drawfocus", e_table->draw_focus,
+		"spreadsheet", e_table->spreadsheet,
+		NULL);
+
+	height = E_TABLE_ITEM (leaf->table_item)->height;
+		
+	leaf->rect = gnome_canvas_item_new (
+		gnome_canvas_root (e_table->table_canvas),
+		gnome_canvas_rect_get_type (),
+		"x1", (double) x_off,
+		"y1", (double) y_off,
+		"x2", (double) x_off + e_table->gen_header_width + GROUP_INDENT,
+		"y2", (double) y_off + TITLE_HEIGHT + height,
+		"fill_color", "gray",
+		"outline_color", "gray20",
+		NULL);
+	gnome_canvas_item_lower (leaf->rect, 1);
+
+	return leaf;
+}
+
+typedef struct {
+	void *value;
+	GArray *array;
+} group_key_t;
+
+static GArray *
+e_table_create_groups (ETableModel *etm, int key_col, GCompareFunc comp)
+{
+	GArray *groups;
+	const int rows = e_table_model_row_count (etm);
+	int row, i;
+	
+	groups = g_array_new (FALSE, FALSE, sizeof (group_key_t));
+
+	for (row = 0; row < rows; row++){
+		void *val = e_table_model_value_at (etm, key_col, row);
+		const int n_groups = groups->len;
+
+		/*
+		 * Should replace this with a bsearch later
+		 */
+		for (i = 0; i < n_groups; i++){
+			group_key_t *g = &g_array_index (groups, group_key_t, i);
+  			
+			if ((*comp) (g->value, val)){
+				g_array_append_val (g->array, row);
+				break;
+			}
+		}
+		if (i != n_groups)
+			continue;
+
+		/*
+		 * We need to create a new group
+		 */
+		{
+			group_key_t gk;
+
+			gk.value = val;
+			gk.array = g_array_new (FALSE, FALSE, sizeof (int));
+
+			g_array_append_val (gk.array, row);
+			g_array_append_val (groups, gk);
+		}
+	}
+
+	return groups;
+}
+
+static void
+e_table_destroy_groups (GArray *groups)
+{
+	const int n = groups->len;
+	int i;
+	
+	for (i = 0; i < n; i++){
+		group_key_t *g = &g_array_index (groups, group_key_t, i);
+
+		g_array_free (g->array, TRUE);
+	}
+	g_array_free (groups, TRUE);
+}
+
+static ETableModel **
+e_table_make_subtables (ETableModel *model, GArray *groups)
+{
+	const int n_groups = groups->len;
+	ETableModel **tables;
+	int i;
+
+	tables = g_new (ETableModel *, n_groups+1);
+
+	for (i = 0; i < n_groups; i++){
+		group_key_t *g = &g_array_index (groups, group_key_t, i);
+		const int sub_size = g->array->len;
+		ETableSubset *ss;
+		int j;
+
+		printf ("Creating subset of %d elements\n", sub_size);
+		tables [i] = e_table_subset_new (model, sub_size);
+		ss = E_TABLE_SUBSET (tables [i]);
+		
+		for (j = 0; j < sub_size; j++)
+			ss->map_table [j] = g_array_index (g->array, int, j);
+	}
+	tables [i] = NULL;
+		
+	return (ETableModel **) tables;
+}
+
+static int
+leaf_height (Leaf *leaf)
+{
+	return E_TABLE_ITEM (leaf->table_item)->height + TITLE_HEIGHT;
+}
+
+static int
+e_table_create_nodes (ETable *e_table, ETableModel *model, ETableHeader *header,
+		      GnomeCanvasGroup *root, int x_off, int y_off,
+		      int *groups_list)
+{
+	GArray *groups;
+	ETableModel **tables;
+	int key_col;
+	int height, i;
+	GCompareFunc comp;
+
+	if (groups_list)
+		key_col = *groups_list;
+	else
+		key_col = -1;
+	
+	if (key_col == -1){
+		Leaf *leaf;
+
+		printf ("Leaf->with %d rows\n", e_table_model_row_count (model));
+		leaf = e_table_create_leaf (e_table, x_off, y_off, model);
+
+		{
+			static int warn_shown;
+
+			if (!warn_shown){
+				g_warning ("Leak");
+				warn_shown = 1;
+			}
+		}
+		return leaf_height (leaf);
+	}
+
+	/*
+	 * Create groups
+	 */
+	comp = e_table_header_get_column (header, key_col)->compare;
+	groups = e_table_create_groups (model, key_col, comp);
+	tables = e_table_make_subtables (e_table->model, groups);
+	e_table_destroy_groups (groups);
+
+	height = 0;
+	for (i = 0; tables [i] != NULL; i++){
+		printf ("Creating->%d with %d rows\n", i, e_table_model_row_count (tables [i]));
+		height += e_table_create_nodes (
+			e_table, tables [i], header, root,
+			x_off + 20,
+			y_off + height, &groups_list [1]);
+	}
+	
+	return height;
+}
+
+static int *
+group_spec_to_desc (const char *group_spec)
 {
+	int a_size = 10;
+	int *elements;
+	char *p, *copy, *follow;
+	int n_elements = 0;
+
+	if (group_spec == NULL)
+		return NULL;
+
+	elements = g_new (int, a_size);	
+	copy = alloca (strlen (group_spec) + 1);
+	strcpy (copy, group_spec);
+
+	while ((p = strtok_r (copy, ",", &follow)) != NULL){
+		elements [n_elements] = atoi (p);
+		++n_elements;
+		if (n_elements+1 == a_size){
+			int *new_e;
+			
+			n_elements += 10;
+			new_e = g_renew (int, elements, n_elements);
+			if (new_e == NULL){
+				g_free (elements);
+				return NULL;
+			}
+			elements = new_e;
+		}
+		copy = NULL;
+	}
+
+	/* Tag end */
+	elements [n_elements] = -1;
+	
+	return elements;
+}
+
+/*
+ * The ETableCanvas object is just used to enable us to
+ * hook up to the realize/unrealize phases of the canvas
+ * initialization (as laying out the subtables requires us to
+ * know the actual size of the subtables we are inserting
+ */
+ 
+#define E_TABLE_CANVAS_PARENT_TYPE gnome_canvas_get_type ()
+
+typedef struct {
+	GnomeCanvas base;
+
+	ETable *e_table;
+} ETableCanvas;
+
+typedef struct {
+	GnomeCanvasClass base_class;
+} ETableCanvasClass;
+
+static GnomeCanvasClass *e_table_canvas_parent_class;
+
+static void
+e_table_canvas_realize (GtkWidget *widget)
+{
+	ETableCanvas *e_table_canvas = (ETableCanvas *) widget;
+	ETable *e_table = e_table_canvas->e_table;
+	int *groups;
+	int height;
+
+	GTK_WIDGET_CLASS (e_table_canvas_parent_class)->realize (widget);
+	
+	groups = group_spec_to_desc (e_table->group_spec);
+
+	e_table->root = gnome_canvas_item_new (
+		GNOME_CANVAS_GROUP (e_table->table_canvas->root),
+		gnome_canvas_group_get_type (),
+		"x", 0.0,
+		"y", 0.0,
+		NULL);
+		
+	e_table->gen_header_width = e_table_header_total_width (e_table->header);
+	
+	height = e_table_create_nodes (
+		e_table, e_table->model,
+		e_table->header, GNOME_CANVAS_GROUP (e_table->root), 0, 0, groups);
+
+	{
+		static int warn_shown;
+
+		if (!warn_shown){
+			g_warning ("Precompute the width, and update on model changes");
+			warn_shown = 1;
+		}
+	}
+
+	gnome_canvas_set_scroll_region (
+		GNOME_CANVAS (e_table_canvas),
+		0, 0,
+		e_table_header_total_width (e_table->header) + 200,
+		height);
+
+	if (groups)
+		g_free (groups);
+}
+
+static void
+e_table_canvas_unrealize (GtkWidget *widget)
+{
+	ETableCanvas *e_table_canvas = (ETableCanvas *) widget;
+	ETable *e_table = e_table_canvas->e_table;
+	
+	gtk_object_destroy (GTK_OBJECT (e_table->root));
+	e_table->root = NULL;
+
+	GTK_WIDGET_CLASS (e_table_canvas_parent_class)->unrealize (widget);
+}
+
+static void
+e_table_canvas_class_init (GtkObjectClass *object_class)
+{
+	GtkWidgetClass *widget_class = (GtkWidgetClass *) object_class;
+
+	widget_class->realize = e_table_canvas_realize;
+	widget_class->unrealize = e_table_canvas_unrealize;
+
+	e_table_canvas_parent_class = gtk_type_class (E_TABLE_CANVAS_PARENT_TYPE);
+}
+
+GtkType e_table_canvas_get_type (void);
+
+E_MAKE_TYPE (e_table_canvas, "ETableCanvas", ETableCanvas, e_table_canvas_class_init,
+	     NULL, E_TABLE_CANVAS_PARENT_TYPE);
+
+static GnomeCanvas *
+e_table_canvas_new (ETable *e_table)
+{
+	ETableCanvas *e_table_canvas;
+
+	e_table_canvas = gtk_type_new (e_table_canvas_get_type ());
+	e_table_canvas->e_table = e_table;
+
+	return GNOME_CANVAS (e_table_canvas);
+}
+
+static void
+e_table_setup_table (ETable *e_table)
+{
+	e_table->table_canvas = e_table_canvas_new (e_table);
+
+	gtk_widget_show (GTK_WIDGET (e_table->table_canvas));
+	gtk_table_attach (
+		GTK_TABLE (e_table), GTK_WIDGET (e_table->table_canvas),
+		0, 1, 1, 2, GTK_FILL | GTK_EXPAND, GTK_FILL | GTK_EXPAND, 0, 0);
+}
+
+void
+e_table_construct (ETable *e_table, ETableHeader *full_header, ETableModel *etm,
+		   const char *cols_spec, const char *group_spec)
+{
+	GTK_TABLE (e_table)->homogeneous = FALSE;
+
+	gtk_table_resize (GTK_TABLE (e_table), 1, 2);
+
+	e_table->full_header = full_header;
+	gtk_object_ref (GTK_OBJECT (full_header));
+
+	e_table->model = etm;
+	gtk_object_ref (GTK_OBJECT (etm));
+
+	e_table->header = e_table_make_header (e_table, full_header, cols_spec);
+
+	e_table_setup_header (e_table);
+	e_table_setup_table (e_table);
+
+	e_table->group_spec = g_strdup (group_spec);
+
 }
 
+GtkWidget *
+e_table_new (ETableHeader *full_header, ETableModel *etm, const char *cols_spec, const char *group_spec)
+{
+	ETable *e_table;
+
+	e_table = gtk_type_new (e_table_get_type ());
+
+	e_table_construct (e_table, full_header, etm, cols_spec, group_spec);
+		
+	return (GtkWidget *) e_table;
+}
+
+static void
+e_table_class_init (GtkObjectClass *object_class)
+{
+	e_table_parent_class = gtk_type_class (PARENT_TYPE);
+
+	object_class->destroy = et_destroy;
+}
+
+E_MAKE_TYPE(e_table, "ETable", ETable, e_table_class_init, e_table_init, PARENT_TYPE);
+