/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* E-table-column-view.c: A canvas item based view of the ETableColumn.
*
* Author:
* Miguel de Icaza (miguel@gnu.org)
*
* Copyright 1999, 2000 Helix Code, Inc.
*/
#include <config.h>
#include <gtk/gtksignal.h>
#include <gtk/gtkdnd.h>
#include <libgnomeui/gnome-canvas.h>
#include <libgnomeui/gnome-canvas-util.h>
#include <libgnomeui/gnome-canvas-polygon.h>
#include <libgnomeui/gnome-canvas-rect-ellipse.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "e-util/e-cursors.h"
#include "e-util/e-xml-utils.h"
#include "e-util/e-popup-menu.h"
#include "e-table-header.h"
#include "e-table-header-item.h"
#include "e-table-col-dnd.h"
#include "e-table-defines.h"
#include "e-table-field-chooser-dialog.h"
#include "add-col.xpm"
#include "remove-col.xpm"
#include "arrow-up.xpm"
#include "arrow-down.xpm"
enum {
BUTTON_PRESSED,
LAST_SIGNAL
};
static guint ethi_signals [LAST_SIGNAL] = { 0, };
#define ARROW_DOWN_HEIGHT 16
#define ARROW_PTR 7
/* Defines the tolerance for proximity of the column division to the cursor position */
#define TOLERANCE 4
#define ETHI_RESIZING(x) ((x)->resize_col != -1)
#define PARENT_OBJECT_TYPE gnome_canvas_item_get_type ()
#define ELEMENTS(x) (sizeof (x) / sizeof (x[0]))
static GnomeCanvasItemClass *ethi_parent_class;
static void ethi_drop_table_header (ETableHeaderItem *ethi);
/*
* They display the arrows for the drop location.
*/
static GtkWidget *arrow_up, *arrow_down;
/*
* DnD icons
*/
static GdkColormap *dnd_colormap;
static GdkPixmap *remove_col_pixmap, *remove_col_mask;
static GdkPixmap *add_col_pixmap, *add_col_mask;
enum {
ARG_0,
ARG_TABLE_HEADER,
ARG_FULL_HEADER,
ARG_DND_CODE,
ARG_TABLE_FONTSET,
ARG_SORT_INFO
};
static void
ethi_destroy (GtkObject *object){
ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (object);
ethi_drop_table_header (ethi);
if (ethi->sort_info){
if (ethi->sort_info_changed_id)
gtk_signal_disconnect (GTK_OBJECT(ethi->sort_info), ethi->sort_info_changed_id);
if (ethi->group_info_changed_id)
gtk_signal_disconnect (GTK_OBJECT(ethi->sort_info), ethi->group_info_changed_id);
gtk_object_unref (GTK_OBJECT(ethi->sort_info));
}
if (GTK_OBJECT_CLASS (ethi_parent_class)->destroy)
(*GTK_OBJECT_CLASS (ethi_parent_class)->destroy) (object);
}
static void
ethi_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags)
{
ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item);
double i2c [6];
ArtPoint c1, c2, i1, i2;
if (GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)->update)
(*GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)->update)(item, affine, clip_path, flags);
if (ethi->sort_info)
ethi->group_indent_width = e_table_sort_info_grouping_get_count(ethi->sort_info) * GROUP_INDENT;
else
ethi->group_indent_width = 0;
ethi->width = e_table_header_total_width (ethi->eth) + ethi->group_indent_width;
i1.x = i1.y = 0;
i2.x = ethi->width;
i2.y = ethi->height;
gnome_canvas_item_i2c_affine (item, i2c);
art_affine_point (&c1, &i1, i2c);
art_affine_point (&c2, &i2, i2c);
if (item->x1 != c1.x ||
item->y1 != c1.y ||
item->x2 != c2.x ||
item->y2 != c2.y)
{
gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, item->x2, item->y2);
item->x1 = c1.x;
item->y1 = c1.y;
item->x2 = c2.x;
item->y2 = c2.y;
gnome_canvas_group_child_bounds (GNOME_CANVAS_GROUP (item->parent), item);
}
gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, item->x2, item->y2);
}
static void
ethi_font_load (ETableHeaderItem *ethi, char *font)
{
if (ethi->font)
gdk_font_unref (ethi->font);
ethi->font = gdk_fontset_load (font);
if (ethi->font == NULL)
ethi->font = gdk_font_load ("-adobe-helvetica-medium-r-normal--*-120-*-*-*-*-iso8859-1");
ethi->height = ethi->font->ascent + ethi->font->descent + HEADER_PADDING;
if (ethi->height < MIN_ARROW_SIZE + 4 + HEADER_PADDING)
ethi->height = MIN_ARROW_SIZE + 4 + HEADER_PADDING;
}
static void
ethi_drop_table_header (ETableHeaderItem *ethi)
{
GtkObject *header;
if (!ethi->eth)
return;
header = GTK_OBJECT (ethi->eth);
gtk_signal_disconnect (header, ethi->structure_change_id);
gtk_signal_disconnect (header, ethi->dimension_change_id);
gtk_object_unref (header);
ethi->eth = NULL;
ethi->width = 0;
}
static void
structure_changed (ETableHeader *header, ETableHeaderItem *ethi)
{
gnome_canvas_item_request_update(GNOME_CANVAS_ITEM(ethi));
}
static void
dimension_changed (ETableHeader *header, int col, ETableHeaderItem *ethi)
{
gnome_canvas_item_request_update(GNOME_CANVAS_ITEM(ethi));
}
static void
ethi_add_table_header (ETableHeaderItem *ethi, ETableHeader *header)
{
ethi->eth = header;
gtk_object_ref (GTK_OBJECT (ethi->eth));
ethi->structure_change_id = gtk_signal_connect (
GTK_OBJECT (header), "structure_change",
GTK_SIGNAL_FUNC(structure_changed), ethi);
ethi->dimension_change_id = gtk_signal_connect (
GTK_OBJECT (header), "dimension_change",
GTK_SIGNAL_FUNC(dimension_changed), ethi);
gnome_canvas_item_request_update(GNOME_CANVAS_ITEM(ethi));
}
static void
ethi_sort_info_changed (ETableSortInfo *sort_info, ETableHeaderItem *ethi)
{
gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(ethi));
}
static void
ethi_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
GnomeCanvasItem *item;
ETableHeaderItem *ethi;
item = GNOME_CANVAS_ITEM (o);
ethi = E_TABLE_HEADER_ITEM (o);
switch (arg_id){
case ARG_TABLE_HEADER:
ethi_drop_table_header (ethi);
ethi_add_table_header (ethi, E_TABLE_HEADER(GTK_VALUE_OBJECT (*arg)));
break;
case ARG_FULL_HEADER:
if (ethi->full_header)
gtk_object_unref(GTK_OBJECT(ethi->full_header));
ethi->full_header = E_TABLE_HEADER(GTK_VALUE_OBJECT (*arg));
if (ethi->full_header)
gtk_object_ref(GTK_OBJECT(ethi->full_header));
break;
case ARG_DND_CODE:
g_free(ethi->dnd_code);
ethi->dnd_code = g_strdup (GTK_VALUE_STRING (*arg));
break;
case ARG_TABLE_FONTSET:
ethi_font_load (ethi, GTK_VALUE_STRING (*arg));
break;
case ARG_SORT_INFO:
if (ethi->sort_info){
if (ethi->sort_info_changed_id)
gtk_signal_disconnect (
GTK_OBJECT(ethi->sort_info),
ethi->sort_info_changed_id);
if (ethi->group_info_changed_id)
gtk_signal_disconnect (
GTK_OBJECT(ethi->sort_info),
ethi->group_info_changed_id);
gtk_object_unref (GTK_OBJECT(ethi->sort_info));
}
ethi->sort_info = GTK_VALUE_POINTER (*arg);
gtk_object_ref (GTK_OBJECT(ethi->sort_info));
ethi->sort_info_changed_id =
gtk_signal_connect (
GTK_OBJECT(ethi->sort_info), "sort_info_changed",
GTK_SIGNAL_FUNC(ethi_sort_info_changed), ethi);
ethi->group_info_changed_id =
gtk_signal_connect (
GTK_OBJECT(ethi->sort_info), "group_info_changed",
GTK_SIGNAL_FUNC(ethi_sort_info_changed), ethi);
break;
}
gnome_canvas_item_request_update(item);
}
static void
ethi_get_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
ETableHeaderItem *ethi;
ethi = E_TABLE_HEADER_ITEM (o);
switch (arg_id){
case ARG_FULL_HEADER:
GTK_VALUE_OBJECT (*arg) = GTK_OBJECT (ethi->full_header);
break;
case ARG_DND_CODE:
GTK_VALUE_STRING (*arg) = g_strdup (ethi->dnd_code);
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static int
ethi_find_col_by_x (ETableHeaderItem *ethi, int x)
{
const int cols = e_table_header_count (ethi->eth);
int x1 = 0;
int col;
if (x < x1)
return -1;
x1 += ethi->group_indent_width;
for (col = 0; col < cols; col++){
ETableCol *ecol = e_table_header_get_column (ethi->eth, col);
if ((x >= x1) && (x <= x1 + ecol->width))
return col;
x1 += ecol->width;
}
return -1;
}
static int
ethi_find_col_by_x_nearest (ETableHeaderItem *ethi, int x)
{
const int cols = e_table_header_count (ethi->eth);
int x1 = 0;
int col;
if (x < x1)
return -1;
x1 += ethi->group_indent_width;
for (col = 0; col < cols; col++){
ETableCol *ecol = e_table_header_get_column (ethi->eth, col);
x1 += (ecol->width / 2);
if (x <= x1)
return col;
x1 += (ecol->width + 1) / 2;
}
return col;
}
static void
ethi_remove_drop_marker (ETableHeaderItem *ethi)
{
if (ethi->drag_mark == -1)
return;
gtk_widget_hide (arrow_up);
gtk_widget_hide (arrow_down);
ethi->drag_mark = -1;
}
static GtkWidget *
make_shapped_window_from_xpm (const char **xpm)
{
GdkPixbuf *pixbuf;
GdkPixmap *pixmap;
GdkBitmap *bitmap;
GtkWidget *win, *pix;
pixbuf = gdk_pixbuf_new_from_xpm_data (xpm);
gdk_pixbuf_render_pixmap_and_mask (pixbuf, &pixmap, &bitmap, 128);
gdk_pixbuf_unref (pixbuf);
gtk_widget_push_visual (gdk_rgb_get_visual ());
gtk_widget_push_colormap (gdk_rgb_get_cmap ());
win = gtk_window_new (GTK_WINDOW_POPUP);
pix = gtk_pixmap_new (pixmap, bitmap);
gtk_widget_realize (win);
gtk_container_add (GTK_CONTAINER (win), pix);
gtk_widget_shape_combine_mask (win, bitmap, 0, 0);
gtk_widget_pop_visual ();
gtk_widget_pop_colormap ();
gdk_pixmap_unref (pixmap);
gdk_bitmap_unref (bitmap);
return win;
}
static void
ethi_add_drop_marker (ETableHeaderItem *ethi, int col)
{
int rx, ry;
int x;
if (ethi->drag_mark == col)
return;
ethi->drag_mark = col;
x = e_table_header_col_diff (ethi->eth, 0, col);
if (col > 0)
x += ethi->group_indent_width;
if (!arrow_up){
arrow_up = make_shapped_window_from_xpm (arrow_up_xpm);
arrow_down = make_shapped_window_from_xpm (arrow_down_xpm);
}
gdk_window_get_origin (
GTK_WIDGET (GNOME_CANVAS_ITEM (ethi)->canvas)->window,
&rx, &ry);
gtk_widget_set_uposition (arrow_down, rx + x - ARROW_PTR, ry - ARROW_DOWN_HEIGHT);
gtk_widget_show_all (arrow_down);
gtk_widget_set_uposition (arrow_up, rx + x - ARROW_PTR, ry + ethi->height);
gtk_widget_show_all (arrow_up);
}
#define gray50_width 2
#define gray50_height 2
static char gray50_bits [] = {
0x02, 0x01, };
static void
ethi_add_destroy_marker (ETableHeaderItem *ethi)
{
double x1;
if (ethi->remove_item)
gtk_object_destroy (GTK_OBJECT (ethi->remove_item));
if (!ethi->stipple)
ethi->stipple = gdk_bitmap_create_from_data (
NULL, gray50_bits, gray50_width, gray50_height);
x1 = (double) e_table_header_col_diff (ethi->eth, 0, ethi->drag_col);
if (ethi->drag_col > 0)
x1 += ethi->group_indent_width;
ethi->remove_item = gnome_canvas_item_new (
GNOME_CANVAS_GROUP (GNOME_CANVAS_ITEM (ethi)->canvas->root),
gnome_canvas_rect_get_type (),
"x1", x1 + 1,
"y1", (double) 1,
"x2", (double) x1 + e_table_header_col_diff (
ethi->eth, ethi->drag_col, ethi->drag_col+1) - 2,
"y2", (double) ethi->height - 2,
"fill_color", "red",
"fill_stipple", ethi->stipple,
NULL);
}
static void
ethi_remove_destroy_marker (ETableHeaderItem *ethi)
{
if (!ethi->remove_item)
return;
gtk_object_destroy (GTK_OBJECT (ethi->remove_item));
ethi->remove_item = NULL;
}
#if 0
static gboolean
moved (ETableHeaderItem *ethi, guint col, guint model_col)
{
if (col == -1)
return TRUE;
ecol = e_table_header_get_column (ethi->eth, col);
if (ecol->col_idx == model_col)
return FALSE;
if (col > 0) {
ecol = e_table_header_get_column (ethi->eth, col - 1);
if (ecol->col_idx == model_col)
return FALSE;
}
return TRUE;
}
#endif
static gboolean
ethi_drag_motion (GtkObject *canvas, GdkDragContext *context,
gint x, gint y, guint time,
ETableHeaderItem *ethi)
{
gdk_drag_status (context, 0, time);
if ((x >= 0) && (x <= (ethi->width)) &&
(y >= 0) && (y <= (ethi->height))){
int col;
col = ethi_find_col_by_x_nearest (ethi, x);
if (col == ethi->drag_col || col == ethi->drag_col + 1) {
if (ethi->drag_col != -1)
ethi_remove_destroy_marker (ethi);
ethi_remove_drop_marker (ethi);
gdk_drag_status (context, context->suggested_action, time);
}
else if (col != -1){
if (ethi->drag_col != -1)
ethi_remove_destroy_marker (ethi);
ethi_add_drop_marker (ethi, col);
gdk_drag_status (context, context->suggested_action, time);
} else {
ethi_remove_drop_marker (ethi);
if (ethi->drag_col != -1)
ethi_add_destroy_marker (ethi);
}
} else {
ethi_remove_drop_marker (ethi);
if (ethi->drag_col != -1)
ethi_add_destroy_marker (ethi);
}
return TRUE;
}
static void
ethi_drag_end (GtkWidget *canvas, GdkDragContext *context, ETableHeaderItem *ethi)
{
if (context->action == 0) {
e_table_header_remove (ethi->eth, ethi->drag_col);
gnome_canvas_item_request_update(GNOME_CANVAS_ITEM(ethi));
}
ethi_remove_drop_marker (ethi);
ethi_remove_destroy_marker (ethi);
ethi->drag_col = -1;
}
static void
ethi_drag_data_received (GtkWidget *canvas,
GdkDragContext *drag_context,
gint x,
gint y,
GtkSelectionData *data,
guint info,
guint time,
ETableHeaderItem *ethi)
{
int found = FALSE;
int count = e_table_header_count(ethi->eth);
int column = atoi(data->data);
int drop_col = ethi->drop_col;
int i;
ethi->drop_col = -1;
if (column < 0)
return;
for (i = 0; i < count; i++) {
ETableCol *ecol = e_table_header_get_column (ethi->eth, i);
if (ecol->col_idx == column) {
e_table_header_move(ethi->eth, i, drop_col);
found = TRUE;
break;
}
}
if (!found) {
count = e_table_header_count(ethi->full_header);
for (i = 0; i < count; i++) {
ETableCol *ecol = e_table_header_get_column (ethi->full_header, i);
if (ecol->col_idx == column) {
e_table_header_add_column (ethi->eth, ecol, drop_col);
break;
}
}
}
ethi_remove_drop_marker (ethi);
gnome_canvas_item_request_update(GNOME_CANVAS_ITEM(ethi));
}
static void
ethi_drag_data_get (GtkWidget *canvas,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time,
ETableHeaderItem *ethi)
{
if (ethi->drag_col != -1) {
ETableCol *ecol = e_table_header_get_column (ethi->eth, ethi->drag_col);
gchar *string = g_strdup_printf("%d", ecol->col_idx);
gtk_selection_data_set(selection_data,
GDK_SELECTION_TYPE_STRING,
sizeof(string[0]),
string,
strlen(string));
g_free(string);
}
}
static gboolean
ethi_drag_drop (GtkWidget *canvas,
GdkDragContext *context,
gint x,
gint y,
guint time,
ETableHeaderItem *ethi)
{
gboolean successful = FALSE;
if ((x >= 0) && (x <= (ethi->width)) &&
(y >= 0) && (y <= (ethi->height))){
int col;
col = ethi_find_col_by_x_nearest (ethi, x);
ethi_add_drop_marker (ethi, col);
ethi->drop_col = col;
if (col != -1) {
char *target = g_strdup_printf ("%s-%s", TARGET_ETABLE_COL_TYPE, ethi->dnd_code);
gtk_drag_get_data (canvas, context, gdk_atom_intern(target, FALSE), time);
g_free (target);
}
}
gtk_drag_finish (context, successful, successful, time);
return successful;
}
static void
ethi_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time, ETableHeaderItem *ethi)
{
ethi_remove_drop_marker (ethi);
if (ethi->drag_col != -1)
ethi_add_destroy_marker (ethi);
}
static void
ethi_realize (GnomeCanvasItem *item)
{
ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item);
GdkWindow *window;
GdkColor c;
GtkTargetEntry ethi_drop_types [] = {
{ TARGET_ETABLE_COL_TYPE, 0, TARGET_ETABLE_COL_HEADER },
};
if (GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)-> realize)
(*GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)->realize)(item);
window = GTK_WIDGET (item->canvas)->window;
ethi->gc = gdk_gc_new (window);
gnome_canvas_get_color (item->canvas, "black", &c);
gdk_gc_set_foreground (ethi->gc, &c);
if (!ethi->font)
ethi_font_load (ethi, "-adobe-helvetica-medium-r-normal--*-120-*-*-*-*-iso8859-1");
/*
* Now, configure DnD
*/
ethi_drop_types[0].target = g_strdup_printf("%s-%s", ethi_drop_types[0].target, ethi->dnd_code);
gtk_drag_dest_set (GTK_WIDGET (item->canvas), 0,
ethi_drop_types, ELEMENTS (ethi_drop_types),
GDK_ACTION_MOVE);
g_free(ethi_drop_types[0].target);
/* Drop signals */
ethi->drag_motion_id = gtk_signal_connect (GTK_OBJECT (item->canvas), "drag_motion",
GTK_SIGNAL_FUNC (ethi_drag_motion), ethi);
ethi->drag_leave_id = gtk_signal_connect (GTK_OBJECT (item->canvas), "drag_leave",
GTK_SIGNAL_FUNC (ethi_drag_leave), ethi);
ethi->drag_drop_id = gtk_signal_connect (GTK_OBJECT (item->canvas), "drag_drop",
GTK_SIGNAL_FUNC (ethi_drag_drop), ethi);
ethi->drag_data_received_id = gtk_signal_connect (GTK_OBJECT (item->canvas), "drag_data_received",
GTK_SIGNAL_FUNC (ethi_drag_data_received), ethi);
/* Drag signals */
ethi->drag_end_id = gtk_signal_connect (GTK_OBJECT (item->canvas), "drag_end",
GTK_SIGNAL_FUNC (ethi_drag_end), ethi);
ethi->drag_data_get_id = gtk_signal_connect (GTK_OBJECT (item->canvas), "drag_data_get",
GTK_SIGNAL_FUNC (ethi_drag_data_get), ethi);
}
static void
ethi_unrealize (GnomeCanvasItem *item)
{
ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item);
gdk_gc_unref (ethi->gc);
ethi->gc = NULL;
gtk_signal_disconnect (GTK_OBJECT (item->canvas), ethi->drag_motion_id);
gtk_signal_disconnect (GTK_OBJECT (item->canvas), ethi->drag_leave_id);
gtk_signal_disconnect (GTK_OBJECT (item->canvas), ethi->drag_drop_id);
gtk_signal_disconnect (GTK_OBJECT (item->canvas), ethi->drag_data_received_id);
gtk_signal_disconnect (GTK_OBJECT (item->canvas), ethi->drag_end_id);
gtk_signal_disconnect (GTK_OBJECT (item->canvas), ethi->drag_data_get_id);
if (ethi->stipple){
gdk_bitmap_unref (ethi->stipple);
ethi->stipple = NULL;
}
if (GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)->unrealize)
(*GNOME_CANVAS_ITEM_CLASS (ethi_parent_class)->unrealize)(item);
}
static void
draw_button (ETableHeaderItem *ethi, ETableCol *col,
GdkDrawable *drawable, GdkGC *gc, GtkStyle *style,
int x, int y, int width, int height, ETableColArrow arrow)
{
GdkRectangle clip;
int xtra;
gdk_draw_rectangle (
drawable, gc, TRUE,
x + 1, y + 1, width - 2, height -2);
gtk_draw_shadow (
style, drawable,
GTK_STATE_NORMAL, GTK_SHADOW_OUT,
x , y, width, height);
clip.x = x + HEADER_PADDING / 2;
clip.y = y + HEADER_PADDING / 2;
clip.width = width - HEADER_PADDING;
clip.height = ethi->height;
gdk_gc_set_clip_rectangle (ethi->gc, &clip);
if (col->is_pixbuf){
xtra = (clip.width - gdk_pixbuf_get_width (col->pixbuf))/2;
xtra += HEADER_PADDING / 2;
gdk_pixbuf_render_to_drawable_alpha (col->pixbuf,
drawable,
0, 0,
x + xtra, y + (clip.height - gdk_pixbuf_get_height (col->pixbuf)) / 2,
gdk_pixbuf_get_width (col->pixbuf), gdk_pixbuf_get_height(col->pixbuf),
GDK_PIXBUF_ALPHA_FULL, 128,
GDK_RGB_DITHER_NORMAL,
0, 0);
} else {
/* Center the thing */
xtra = (clip.width - gdk_string_measure (ethi->font, col->text))/2;
/* Skip over border */
if (xtra < 0)
xtra = 0;
xtra += HEADER_PADDING / 2;
gdk_draw_text (
drawable, ethi->font,
ethi->gc, x + xtra, y + ethi->height - ethi->font->descent - HEADER_PADDING / 2,
col->text, strlen (col->text));
}
if (col->pixbuf){
if ((gdk_pixbuf_get_width (col->pixbuf) + MIN_ARROW_SIZE + 4) > width)
return;
}
switch (arrow){
case E_TABLE_COL_ARROW_NONE:
break;
case E_TABLE_COL_ARROW_UP:
case E_TABLE_COL_ARROW_DOWN:
gtk_paint_arrow (
gtk_widget_get_style (GTK_WIDGET(GNOME_CANVAS_ITEM(ethi)->canvas)),
drawable,
GTK_STATE_NORMAL,
GTK_SHADOW_IN,
&clip,
GTK_WIDGET(GNOME_CANVAS_ITEM(ethi)->canvas),
"header",
(arrow == E_TABLE_COL_ARROW_UP) ? GTK_ARROW_UP : GTK_ARROW_DOWN,
TRUE,
x + HEADER_PADDING / 2 + clip.width - MIN_ARROW_SIZE - 2,
y + (ethi->height - MIN_ARROW_SIZE) / 2,
MIN_ARROW_SIZE,
MIN_ARROW_SIZE);
break;
}
}
static void
ethi_draw (GnomeCanvasItem *item, GdkDrawable *drawable, int x, int y, int width, int height)
{
ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item);
GnomeCanvas *canvas = item->canvas;
GdkGC *gc;
const int cols = e_table_header_count (ethi->eth);
int x1, x2;
int col;
GHashTable *arrows = g_hash_table_new (NULL, NULL);
if (ethi->sort_info) {
int length = e_table_sort_info_grouping_get_count(ethi->sort_info);
int i;
for (i = 0; i < length; i++) {
ETableSortColumn column = e_table_sort_info_grouping_get_nth(ethi->sort_info, i);
g_hash_table_insert (arrows,
(gpointer) column.column,
(gpointer) (column.ascending ?
E_TABLE_COL_ARROW_DOWN :
E_TABLE_COL_ARROW_UP));
}
length = e_table_sort_info_sorting_get_count(ethi->sort_info);
for (i = 0; i < length; i++) {
ETableSortColumn column = e_table_sort_info_sorting_get_nth(ethi->sort_info, i);
g_hash_table_insert (arrows,
(gpointer) column.column,
(gpointer) (column.ascending ?
E_TABLE_COL_ARROW_DOWN :
E_TABLE_COL_ARROW_UP));
}
}
ethi->width = e_table_header_total_width (ethi->eth) + ethi->group_indent_width;
x1 = x2 = 0;
x2 += ethi->group_indent_width;
for (col = 0; col < cols; col++, x1 = x2){
ETableCol *ecol = e_table_header_get_column (ethi->eth, col);
int col_width;
col_width = ecol->width;
x2 += col_width;
if (x1 > (x + width))
break;
if (x2 < x)
continue;
gc = GTK_WIDGET (canvas)->style->bg_gc [GTK_STATE_NORMAL];
draw_button (ethi, ecol, drawable, gc,
GTK_WIDGET (canvas)->style,
x1 - x, - y, x2 - x1, ethi->height,
(ETableColArrow) g_hash_table_lookup (arrows, (gpointer) ecol->col_idx));
}
g_hash_table_destroy (arrows);
}
static double
ethi_point (GnomeCanvasItem *item, double x, double y, int cx, int cy,
GnomeCanvasItem **actual_item)
{
*actual_item = item;
return 0.0;
}
/*
* is_pointer_on_division:
*
* Returns whether @pos is a column header division; If @the_total is not NULL,
* then the actual position is returned here. If @return_ecol is not NULL,
* then the ETableCol that actually contains this point is returned here
*/
static gboolean
is_pointer_on_division (ETableHeaderItem *ethi, int pos, int *the_total, int *return_col)
{
const int cols = e_table_header_count (ethi->eth);
int col, total;
total = 0;
for (col = 0; col < cols; col++){
ETableCol *ecol = e_table_header_get_column (ethi->eth, col);
if (col == 0)
total += ethi->group_indent_width;
total += ecol->width;
if ((total - TOLERANCE < pos)&& (pos < total + TOLERANCE)){
if (return_col)
*return_col = col;
if (the_total)
*the_total = total;
return TRUE;
}
if (total > pos + TOLERANCE)
return FALSE;
}
return FALSE;
}
#define convert(c,sx,sy,x,y) gnome_canvas_w2c (c,sx,sy,x,y)
static void
set_cursor (ETableHeaderItem *ethi, int pos)
{
GtkWidget *canvas = GTK_WIDGET (GNOME_CANVAS_ITEM (ethi)->canvas);
/* We might be invoked before we are realized */
if (!canvas->window)
return;
if (is_pointer_on_division (ethi, pos, NULL, NULL))
e_cursor_set (canvas->window, E_CURSOR_SIZE_X);
else
e_cursor_set (canvas->window, E_CURSOR_ARROW);
}
static void
ethi_end_resize (ETableHeaderItem *ethi)
{
ethi->resize_col = -1;
ethi->resize_guide = GINT_TO_POINTER (0);
gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(ethi));
}
static gboolean
ethi_maybe_start_drag (ETableHeaderItem *ethi, GdkEventMotion *event)
{
if (!ethi->maybe_drag)
return FALSE;
if (ethi->eth->col_count < 2)
return FALSE;
if (MAX (abs (ethi->click_x - event->x),
abs (ethi->click_y - event->y)) <= 3)
return FALSE;
return TRUE;
}
static void
ethi_start_drag (ETableHeaderItem *ethi, GdkEvent *event)
{
GtkWidget *widget = GTK_WIDGET (GNOME_CANVAS_ITEM (ethi)->canvas);
GtkTargetList *list;
GdkDragContext *context;
ETableCol *ecol;
int col_width;
GdkPixmap *pixmap;
GdkGC *gc;
int group_indent = 0;
GHashTable *arrows = g_hash_table_new (NULL, NULL);
GtkTargetEntry ethi_drag_types [] = {
{ TARGET_ETABLE_COL_TYPE, 0, TARGET_ETABLE_COL_HEADER },
};
ethi->drag_col = ethi_find_col_by_x (ethi, event->motion.x);
if (ethi->drag_col == -1)
return;
if (ethi->sort_info) {
int length = e_table_sort_info_grouping_get_count(ethi->sort_info);
int i;
for (i = 0; i < length; i++) {
ETableSortColumn column = e_table_sort_info_grouping_get_nth(ethi->sort_info, i);
group_indent ++;
g_hash_table_insert (arrows,
(gpointer) column.column,
(gpointer) (column.ascending ?
E_TABLE_COL_ARROW_DOWN :
E_TABLE_COL_ARROW_UP));
}
length = e_table_sort_info_sorting_get_count(ethi->sort_info);
for (i = 0; i < length; i++) {
ETableSortColumn column = e_table_sort_info_sorting_get_nth(ethi->sort_info, i);
g_hash_table_insert (arrows,
(gpointer) column.column,
(gpointer) (column.ascending ?
E_TABLE_COL_ARROW_DOWN :
E_TABLE_COL_ARROW_UP));
}
}
ethi_drag_types[0].target = g_strdup_printf("%s-%s", ethi_drag_types[0].target, ethi->dnd_code);
list = gtk_target_list_new (ethi_drag_types, ELEMENTS (ethi_drag_types));
context = gtk_drag_begin (widget, list, GDK_ACTION_MOVE, 1, event);
g_free(ethi_drag_types[0].target);
ecol = e_table_header_get_column (ethi->eth, ethi->drag_col);
col_width = ecol->width;
pixmap = gdk_pixmap_new (widget->window, col_width, ethi->height, -1);
gc = widget->style->bg_gc [GTK_STATE_ACTIVE];
draw_button (ethi, ecol, pixmap, gc,
widget->style,
0, 0, col_width, ethi->height,
(ETableColArrow) g_hash_table_lookup (arrows, (gpointer) ecol->col_idx));
gtk_drag_set_icon_pixmap (context,
gdk_window_get_colormap (widget->window),
pixmap,
NULL,
col_width / 2,
ethi->height / 2);
gdk_pixmap_unref (pixmap);
ethi->maybe_drag = FALSE;
g_hash_table_destroy (arrows);
}
typedef struct {
ETableHeaderItem *ethi;
int col;
} EthiHeaderInfo;
static void
ethi_popup_sort_ascending(GtkWidget *widget, EthiHeaderInfo *info)
{
ETableCol *col;
int model_col;
int length;
int i;
int found = FALSE;
ETableHeaderItem *ethi = info->ethi;
col = e_table_header_get_column (ethi->eth, info->col);
model_col = col->col_idx;
length = e_table_sort_info_grouping_get_count(ethi->sort_info);
for (i = 0; i < length; i++) {
ETableSortColumn column = e_table_sort_info_grouping_get_nth(ethi->sort_info, i);
if (model_col == column.column){
column.ascending = 1;
e_table_sort_info_grouping_set_nth(ethi->sort_info, i, column);
found = 1;
break;
}
}
if (!found) {
length = e_table_sort_info_sorting_get_count(ethi->sort_info);
for (i = 0; i < length; i++) {
ETableSortColumn column = e_table_sort_info_sorting_get_nth(ethi->sort_info, i);
if (model_col == column.column){
column.ascending = 1;
e_table_sort_info_sorting_set_nth(ethi->sort_info, i, column);
found = 1;
break;
}
}
}
if (!found) {
ETableSortColumn column = { model_col, 1 };
length = e_table_sort_info_sorting_get_count(ethi->sort_info);
if (length == 0)
length++;
e_table_sort_info_sorting_set_nth(ethi->sort_info, length - 1, column);
}
}
static void
ethi_popup_sort_descending(GtkWidget *widget, EthiHeaderInfo *info)
{
ETableCol *col;
int model_col;
int length;
int i;
int found = FALSE;
ETableHeaderItem *ethi = info->ethi;
col = e_table_header_get_column (ethi->eth, info->col);
model_col = col->col_idx;
length = e_table_sort_info_grouping_get_count(ethi->sort_info);
for (i = 0; i < length; i++) {
ETableSortColumn column = e_table_sort_info_grouping_get_nth(ethi->sort_info, i);
if (model_col == column.column){
column.ascending = 0;
e_table_sort_info_grouping_set_nth(ethi->sort_info, i, column);
found = 1;
break;
}
}
if (!found) {
length = e_table_sort_info_sorting_get_count(ethi->sort_info);
for (i = 0; i < length; i++) {
ETableSortColumn column = e_table_sort_info_sorting_get_nth(ethi->sort_info, i);
if (model_col == column.column){
column.ascending = 0;
e_table_sort_info_sorting_set_nth(ethi->sort_info, i, column);
found = 1;
break;
}
}
}
if (!found) {
ETableSortColumn column = { model_col, 0 };
length = e_table_sort_info_sorting_get_count(ethi->sort_info);
if (length == 0)
length++;
e_table_sort_info_sorting_set_nth(ethi->sort_info, length - 1, column);
}
}
static void
ethi_popup_unsort(GtkWidget *widget, EthiHeaderInfo *info)
{
ETableHeaderItem *ethi = info->ethi;
e_table_sort_info_grouping_truncate(ethi->sort_info, 0);
e_table_sort_info_sorting_truncate(ethi->sort_info, 0);
}
static void
ethi_popup_group_field(GtkWidget *widget, EthiHeaderInfo *info)
{
ETableCol *col;
int model_col;
ETableHeaderItem *ethi = info->ethi;
ETableSortColumn column;
col = e_table_header_get_column (ethi->eth, info->col);
model_col = col->col_idx;
column.column = model_col;
column.ascending = 1;
e_table_sort_info_grouping_set_nth(ethi->sort_info, 0, column);
e_table_sort_info_grouping_truncate(ethi->sort_info, 1);
}
static void
ethi_popup_group_box(GtkWidget *widget, EthiHeaderInfo *info)
{
}
static void
ethi_popup_remove_column(GtkWidget *widget, EthiHeaderInfo *info)
{
e_table_header_remove(info->ethi->eth, info->col);
}
static void
ethi_popup_field_chooser(GtkWidget *widget, EthiHeaderInfo *info)
{
GtkWidget *etfcd = e_table_field_chooser_dialog_new();
gtk_object_set(GTK_OBJECT(etfcd),
"full_header", info->ethi->full_header,
"dnd_code", info->ethi->dnd_code,
NULL);
gtk_widget_show(etfcd);
}
static void
ethi_popup_alignment(GtkWidget *widget, EthiHeaderInfo *info)
{
}
static void
ethi_popup_best_fit(GtkWidget *widget, EthiHeaderInfo *info)
{
}
static void
ethi_popup_format_columns(GtkWidget *widget, EthiHeaderInfo *info)
{
}
static void
ethi_popup_customize_view(GtkWidget *widget, EthiHeaderInfo *info)
{
}
/* Bit 1 is always disabled. */
/* Bit 2 is disabled if not "sortable". */
static EPopupMenu ethi_context_menu [] = {
{ "Sort Ascending", NULL, GTK_SIGNAL_FUNC(ethi_popup_sort_ascending), 2},
{ "Sort Descending", NULL, GTK_SIGNAL_FUNC(ethi_popup_sort_descending), 2},
{ "Unsort", NULL, GTK_SIGNAL_FUNC(ethi_popup_unsort), 0},
{ "", NULL, GTK_SIGNAL_FUNC(NULL), 0},
{ "Group By This Field", NULL, GTK_SIGNAL_FUNC(ethi_popup_group_field), 0},
{ "Group By Box", NULL, GTK_SIGNAL_FUNC(ethi_popup_group_box), 1},
{ "", NULL, GTK_SIGNAL_FUNC(NULL), 1},
{ "Remove This Column", NULL, GTK_SIGNAL_FUNC(ethi_popup_remove_column), 0},
{ "Field Chooser", NULL, GTK_SIGNAL_FUNC(ethi_popup_field_chooser), 0},
{ "", NULL, GTK_SIGNAL_FUNC(NULL), 1},
{ "Alignment", NULL, GTK_SIGNAL_FUNC(ethi_popup_alignment), 1},
{ "Best Fit", NULL, GTK_SIGNAL_FUNC(ethi_popup_best_fit), 1},
{ "Format Columns...", NULL, GTK_SIGNAL_FUNC(ethi_popup_format_columns), 1},
{ "", NULL, GTK_SIGNAL_FUNC(NULL), 1},
{ "Customize Current View...", NULL, GTK_SIGNAL_FUNC(ethi_popup_customize_view), 1},
{ NULL, NULL, NULL, 0 }
};
static void
ethi_header_context_menu (ETableHeaderItem *ethi, GdkEventButton *event)
{
EthiHeaderInfo *info = g_new(EthiHeaderInfo, 1);
ETableCol *col;
info->ethi = ethi;
info->col = ethi_find_col_by_x (ethi, event->x);
col = e_table_header_get_column (ethi->eth, info->col);
e_popup_menu_run (ethi_context_menu, event, 1 + (col->sortable ? 0 : 2), 0, info);
}
static void
ethi_button_pressed (ETableHeaderItem *ethi, GdkEventButton *event)
{
gtk_signal_emit (GTK_OBJECT (ethi),
ethi_signals [BUTTON_PRESSED], event);
}
/*
* Handles the events on the ETableHeaderItem, particularly it handles resizing
*/
static int
ethi_event (GnomeCanvasItem *item, GdkEvent *e)
{
ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item);
GnomeCanvas *canvas = item->canvas;
const gboolean resizing = ETHI_RESIZING (ethi);
int x, y, start, col;
int was_maybe_drag = 0;
switch (e->type){
case GDK_ENTER_NOTIFY:
convert (canvas, e->crossing.x, e->crossing.y, &x, &y);
set_cursor (ethi, x);
break;
case GDK_LEAVE_NOTIFY:
e_cursor_set (GTK_WIDGET (canvas)->window, E_CURSOR_ARROW);
break;
case GDK_MOTION_NOTIFY:
convert (canvas, e->motion.x, e->motion.y, &x, &y);
if (resizing){
int new_width;
if (ethi->resize_guide == NULL){
/* Quick hack until I actually bind the views */
ethi->resize_guide = GINT_TO_POINTER (1);
gnome_canvas_item_grab (item,
GDK_POINTER_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK,
e_cursor_get (E_CURSOR_SIZE_X),
e->button.time);
}
new_width = x - ethi->resize_start_pos;
e_table_header_set_size (ethi->eth, ethi->resize_col, new_width);
gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(ethi));
} else if (ethi_maybe_start_drag (ethi, &e->motion)){
ethi_start_drag (ethi, e);
} else
set_cursor (ethi, x);
break;
case GDK_BUTTON_PRESS:
if (e->button.button > 3)
return FALSE;
convert (canvas, e->button.x, e->button.y, &x, &y);
if (is_pointer_on_division (ethi, x, &start, &col) && e->button.button == 1){
ETableCol *ecol;
/*
* Record the important bits.
*
* By setting resize_pos to a non -1 value,
* we know that we are being resized (used in the
* other event handlers).
*/
ecol = e_table_header_get_column (ethi->eth, col);
if (!ecol->resizeable)
break;
ethi->resize_col = col;
ethi->resize_start_pos = start - ecol->width;
ethi->resize_min_width = ecol->min_width;
} else {
if (e->button.button == 1){
ethi->click_x = e->button.x;
ethi->click_y = e->button.y;
ethi->maybe_drag = TRUE;
} else if (e->button.button == 3){
ethi_header_context_menu (ethi, &e->button);
} else
ethi_button_pressed (ethi, &e->button);
}
break;
case GDK_2BUTTON_PRESS:
if (!resizing)
break;
if (e->button.button != 1)
break;
break;
case GDK_BUTTON_RELEASE: {
gboolean needs_ungrab = FALSE;
was_maybe_drag = ethi->maybe_drag;
ethi->maybe_drag = FALSE;
if (ethi->resize_col != -1){
needs_ungrab = (ethi->resize_guide != NULL);
ethi_end_resize (ethi);
} else if (was_maybe_drag && ethi->sort_info) {
ETableCol *col;
int model_col;
int length;
int i;
int found = FALSE;
col = e_table_header_get_column (ethi->eth, ethi_find_col_by_x (ethi, e->button.x));
model_col = col->col_idx;
length = e_table_sort_info_grouping_get_count(ethi->sort_info);
for (i = 0; i < length; i++) {
ETableSortColumn column = e_table_sort_info_grouping_get_nth(ethi->sort_info, i);
if (model_col == column.column){
int ascending = column.ascending;
ascending = ! ascending;
column.ascending = ascending;
e_table_sort_info_grouping_set_nth(ethi->sort_info, i, column);
found = 1;
break;
}
}
if(col->sortable) {
if (!found) {
length = e_table_sort_info_sorting_get_count(ethi->sort_info);
for (i = 0; i < length; i++) {
ETableSortColumn column = e_table_sort_info_sorting_get_nth(ethi->sort_info, i);
if (model_col == column.column){
int ascending = column.ascending;
ascending = ! ascending;
column.ascending = ascending;
e_table_sort_info_sorting_set_nth(ethi->sort_info, i, column);
found = 1;
break;
}
}
}
if (!found) {
ETableSortColumn column = { model_col, 1 };
length = e_table_sort_info_sorting_get_count(ethi->sort_info);
if (length == 0)
length++;
e_table_sort_info_sorting_set_nth(ethi->sort_info, length - 1, column);
}
}
}
if (needs_ungrab)
gnome_canvas_item_ungrab (item, e->button.time);
break;
}
default:
return FALSE;
}
return TRUE;
}
static void
ethi_class_init (GtkObjectClass *object_class)
{
GnomeCanvasItemClass *item_class = (GnomeCanvasItemClass *) object_class;
ethi_parent_class = gtk_type_class (PARENT_OBJECT_TYPE);
object_class->destroy = ethi_destroy;
object_class->set_arg = ethi_set_arg;
object_class->get_arg = ethi_get_arg;
item_class->update = ethi_update;
item_class->realize = ethi_realize;
item_class->unrealize = ethi_unrealize;
item_class->draw = ethi_draw;
item_class->point = ethi_point;
item_class->event = ethi_event;
gtk_object_add_arg_type ("ETableHeaderItem::ETableHeader", GTK_TYPE_OBJECT,
GTK_ARG_WRITABLE, ARG_TABLE_HEADER);
gtk_object_add_arg_type ("ETableHeaderItem::full_header", GTK_TYPE_OBJECT,
GTK_ARG_READWRITE, ARG_FULL_HEADER);
gtk_object_add_arg_type ("ETableHeaderItem::dnd_code", GTK_TYPE_STRING,
GTK_ARG_READWRITE, ARG_DND_CODE);
gtk_object_add_arg_type ("ETableHeaderItem::fontset", GTK_TYPE_STRING,
GTK_ARG_WRITABLE, ARG_TABLE_FONTSET);
gtk_object_add_arg_type ("ETableHeaderItem::sort_info", GTK_TYPE_OBJECT,
GTK_ARG_WRITABLE, ARG_SORT_INFO);
/*
* Create our pixmaps for DnD
*/
dnd_colormap = gtk_widget_get_default_colormap ();
remove_col_pixmap = gdk_pixmap_colormap_create_from_xpm_d (
NULL, dnd_colormap,
&remove_col_mask, NULL, remove_col_xpm);
add_col_pixmap = gdk_pixmap_colormap_create_from_xpm_d (
NULL, dnd_colormap,
&add_col_mask, NULL, add_col_xpm);
ethi_signals [BUTTON_PRESSED] =
gtk_signal_new ("button_pressed",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableHeaderItemClass, button_pressed),
gtk_marshal_NONE__POINTER,
GTK_TYPE_NONE, 1, GTK_TYPE_POINTER);
}
static void
ethi_init (GnomeCanvasItem *item)
{
ETableHeaderItem *ethi = E_TABLE_HEADER_ITEM (item);
ethi->resize_col = -1;
item->x1 = 0;
item->y1 = 0;
item->x2 = 0;
item->y2 = 0;
ethi->drag_col = -1;
ethi->drag_mark = -1;
ethi->sort_info = NULL;
ethi->sort_info_changed_id = 0;
ethi->group_info_changed_id = 0;
ethi->group_indent_width = 0;
}
GtkType
e_table_header_item_get_type (void)
{
static GtkType type = 0;
if (!type){
GtkTypeInfo info = {
"ETableHeaderItem",
sizeof (ETableHeaderItem),
sizeof (ETableHeaderItemClass),
(GtkClassInitFunc) ethi_class_init,
(GtkObjectInitFunc) ethi_init,
NULL, /* reserved 1 */
NULL, /* reserved 2 */
(GtkClassInitFunc) NULL
};
type = gtk_type_unique (PARENT_OBJECT_TYPE, &info);
}
return type;
}