/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* E-table-item.c: A GnomeCanvasItem that is a view of an ETableModel.
*
* Author:
* Miguel de Icaza (miguel@gnu.org)
*
* Copyright 1999, Helix Code, Inc.
*
* TODO:
* Add a border to the thing, so that focusing works properly.
*
*/
#include <config.h>
#include <stdio.h>
#include <gtk/gtksignal.h>
#include <gdk/gdkkeysyms.h>
#include <math.h>
#include "e-table-item.h"
#include "e-cell.h"
#define PARENT_OBJECT_TYPE gnome_canvas_item_get_type ()
#define FOCUSED_BORDER 2
static GnomeCanvasItemClass *eti_parent_class;
enum {
ROW_SELECTION,
RESIZE,
LAST_SIGNAL
};
static gint eti_signals [LAST_SIGNAL] = { 0, };
enum {
ARG_0,
ARG_TABLE_HEADER,
ARG_TABLE_MODEL,
ARG_TABLE_DRAW_GRID,
ARG_TABLE_DRAW_FOCUS,
ARG_MODE_SPREADSHEET,
ARG_LENGHT_THRESHOLD,
ARG_WIDTH,
ARG_HEIGHT,
ARG_HAS_FOCUS
};
static gboolean
eti_editing (ETableItem *eti)
{
if (eti->editing_col == -1)
return FALSE;
else
return TRUE;
}
/*
* During realization, we have to invoke the per-ecell realize routine
* (On our current setup, we have one e-cell per column.
*
* We might want to optimize this to only realize the unique e-cells:
* ie, a strings-only table, uses the same e-cell for every column, and
* we might want to avoid realizing each e-cell.
*/
static void
eti_realize_cell_views (ETableItem *eti)
{
int i;
for (i = 0; i < eti->n_cells; i++)
e_cell_realize (eti->cell_views [i]);
eti->cell_views_realized = 1;
}
static void eti_compute_height (ETableItem *eti);
static void
eti_attach_cell_views (ETableItem *eti)
{
int i;
g_assert (eti->header);
g_assert (eti->table_model);
/*
* Now realize the various ECells
*/
eti->n_cells = eti->cols;
eti->cell_views = g_new (ECellView *, eti->n_cells);
for (i = 0; i < eti->n_cells; i++){
ETableCol *col = e_table_header_get_column (eti->header, i);
eti->cell_views [i] = e_cell_new_view (col->ecell, eti->table_model, eti);
}
eti_compute_height (eti);
}
/*
* During unrealization: we invoke every e-cell (one per column in the current
* setup) to dispose all X resources allocated
*/
static void
eti_unrealize_cell_views (ETableItem *eti)
{
int i;
if (eti->cell_views_realized == 0)
return;
for (i = 0; i < eti->n_cells; i++)
e_cell_unrealize (eti->cell_views [i]);
eti->cell_views_realized = 0;
}
static void
eti_detach_cell_views (ETableItem *eti)
{
int i;
for (i = 0; i < eti->n_cells; i++){
e_cell_kill_view (eti->cell_views [i]);
eti->cell_views [i] = NULL;
}
g_free (eti->cell_views);
eti->cell_views = NULL;
eti->n_cells = 0;
}
static void
eti_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y2)
{
double i2c [6];
ArtPoint c1, c2, i1, i2;
ETableItem *eti = E_TABLE_ITEM (item);
gnome_canvas_item_i2c_affine (item, i2c);
i1.x = eti->x1;
i1.y = eti->y1;
i2.x = eti->x1 + eti->width;
i2.y = eti->y1 + eti->height;
art_affine_point (&c1, &i1, i2c);
art_affine_point (&c2, &i2, i2c);
item->x1 = c1.x;
item->y1 = c1.y;
item->x2 = c2.x;
item->y2 = c2.y;
}
/*
* GnomeCanvasItem::update method
*/
static void
eti_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags)
{
if (GNOME_CANVAS_ITEM_CLASS (eti_parent_class)->update)
(*GNOME_CANVAS_ITEM_CLASS (eti_parent_class)->update)(item, affine, clip_path, flags);
eti_bounds (item, &item->x1, &item->y1, &item->x2, &item->y2);
gnome_canvas_group_child_bounds (GNOME_CANVAS_GROUP (item->parent), item);
}
/*
* eti_remove_table_model:
*
* Invoked to release the table model associated with this ETableItem
*/
static void
eti_remove_table_model (ETableItem *eti)
{
if (!eti->table_model)
return;
gtk_signal_disconnect (GTK_OBJECT (eti->table_model),
eti->table_model_change_id);
gtk_signal_disconnect (GTK_OBJECT (eti->table_model),
eti->table_model_row_change_id);
gtk_object_unref (GTK_OBJECT (eti->table_model));
eti->table_model_change_id = 0;
eti->table_model_row_change_id = 0;
eti->table_model = NULL;
}
/*
* eti_remove_header_model:
*
* Invoked to release the header model associated with this ETableItem
*/
static void
eti_remove_header_model (ETableItem *eti)
{
if (!eti->header)
return;
gtk_signal_disconnect (GTK_OBJECT (eti->header),
eti->header_structure_change_id);
gtk_signal_disconnect (GTK_OBJECT (eti->header),
eti->header_dim_change_id);
if (eti->cell_views){
eti_unrealize_cell_views (eti);
eti_detach_cell_views (eti);
}
gtk_object_unref (GTK_OBJECT (eti->header));
eti->header_structure_change_id = 0;
eti->header_dim_change_id = 0;
eti->header = NULL;
}
/*
* eti_row_height:
*
* Returns the height used by row @row. This does not include the one-pixel
* used as a separator between rows
*/
static int
eti_row_height (ETableItem *eti, int row)
{
const int cols = e_table_header_count (eti->header);
int col;
int h, max_h;
g_assert (eti->cell_views);
max_h = 0;
for (col = 0; col < cols; col++){
ETableCol *ecol = e_table_header_get_column (eti->header, col);
h = e_cell_height (eti->cell_views [col], ecol->col_idx, col, row);
if (h > max_h)
max_h = h;
}
return max_h;
}
/*
* eti_get_height:
*
* Returns the height of the ETableItem.
*
* The ETableItem might compute the whole height by asking every row its
* size. There is a special mode (designed to work when there are too
* many rows in the table that performing the previous step could take
* too long) set by the ETableItem->length_threshold that would determine
* when the height is computed by using the first row as the size for
* every other row in the ETableItem.
*/
static int
eti_get_height (ETableItem *eti)
{
const int rows = eti->rows;
int row;
int height;
if (rows == 0)
return 0;
if (eti->length_threshold != -1){
if (rows > eti->length_threshold){
height = (eti_row_height (eti, 0) + 1) * rows;
/*
* 1 pixel at the top
*/
return height + 1;
}
}
height = 1;
for (row = 0; row < rows; row++)
height += eti_row_height (eti, row) + 1;
return height;
}
static void
eti_compute_height (ETableItem *eti)
{
int new_height = eti_get_height (eti);
if (new_height != eti->height){
/* double x1, y1, x2, y2;*/
printf ("Emitting!\n");
eti->height = new_height;
eti_update (GNOME_CANVAS_ITEM (eti), NULL, NULL, 0);
gtk_signal_emit (GTK_OBJECT (eti), eti_signals [RESIZE]);
}
}
static void
eti_item_region_redraw (ETableItem *eti, int x0, int y0, int x1, int y1)
{
GnomeCanvasItem *item = GNOME_CANVAS_ITEM (eti);
ArtDRect rect;
double i2c [6];
rect.x0 = x0;
rect.y0 = y0;
rect.x1 = x1;
rect.y1 = y1;
gnome_canvas_item_i2c_affine (item, i2c);
art_drect_affine_transform (&rect, &rect, i2c);
gnome_canvas_request_redraw (item->canvas, rect.x0, rect.y0, rect.x1, rect.y1);
}
/*
* Callback routine: invoked when the ETableModel has suffered a change
*/
static void
eti_table_model_changed (ETableModel *table_model, ETableItem *eti)
{
eti->rows = e_table_model_row_count (eti->table_model);
if (eti->focused_row > eti->rows - 1) {
eti->focused_row = eti->rows - 1;
}
if (eti->cell_views)
eti_compute_height (eti);
eti_update (GNOME_CANVAS_ITEM (eti), NULL, NULL, 0);
eti_item_region_redraw (eti, 0, 0, eti->width, eti->height);
}
/*
* eti_request_redraw:
*
* Queues a canvas redraw for the entire ETableItem.
*/
static void
eti_request_redraw (ETableItem *eti)
{
eti_item_region_redraw (eti, eti->x1, eti->y1, eti->x1 + eti->width + 1, eti->y1 + eti->height + 1);
}
/*
* Computes the distance between @start_row and @end_row in pixels
*/
static int
eti_row_diff (ETableItem *eti, int start_row, int end_row)
{
int row, total;
total = 0;
for (row = start_row; row < end_row; row++)
total += eti_row_height (eti, row) + 1;
return total;
}
/*
* eti_request_region_redraw:
*
* Request a canvas redraw on the range (start_col, start_row) to (end_col, end_row).
* This is inclusive (ie, you can use: 0,0-0,0 to redraw the first cell).
*
* The @border argument is a number of pixels around the region that should also be queued
* for redraw. This is typically used by the focus routines to queue a redraw for the
* border as well.
*/
static void
eti_request_region_redraw (ETableItem *eti,
int start_col, int start_row,
int end_col, int end_row, int border)
{
int x1, y1, width, height;
x1 = e_table_header_col_diff (eti->header, 0, start_col);
y1 = eti_row_diff (eti, 0, start_row);
width = e_table_header_col_diff (eti->header, start_col, end_col + 1);
height = eti_row_diff (eti, start_row, end_row + 1);
eti_item_region_redraw (eti, eti->x1 + x1 - border,
eti->y1 + y1 - border,
eti->x1 + x1 + width + 1 + border,
eti->y1 + y1 + height + 1 + border);
}
static void
eti_table_model_row_changed (ETableModel *table_model, int row, ETableItem *eti)
{
if (eti->renderers_can_change_size){
eti_table_model_changed (table_model, eti);
return;
}
eti_request_region_redraw (eti, 0, row, eti->cols, row, 0);
}
void
e_table_item_redraw_range (ETableItem *eti,
int start_col, int start_row,
int end_col, int end_row)
{
int border;
g_return_if_fail (eti != NULL);
g_return_if_fail (E_IS_TABLE_ITEM (eti));
if ((start_col == eti->focused_col) ||
(end_col == eti->focused_col) ||
(start_row == eti->focused_row) ||
(end_row == eti->focused_row))
border = 2;
else
border = 0;
eti_request_region_redraw (eti, start_col, start_row, end_col, end_row, border);
}
static void
eti_add_table_model (ETableItem *eti, ETableModel *table_model)
{
g_assert (eti->table_model == NULL);
eti->table_model = table_model;
gtk_object_ref (GTK_OBJECT (eti->table_model));
eti->table_model_change_id = gtk_signal_connect (
GTK_OBJECT (table_model), "model_changed",
GTK_SIGNAL_FUNC (eti_table_model_changed), eti);
eti->table_model_row_change_id = gtk_signal_connect (
GTK_OBJECT (table_model), "model_row_changed",
GTK_SIGNAL_FUNC (eti_table_model_row_changed), eti);
if (eti->header){
eti_detach_cell_views (eti);
eti_attach_cell_views (eti);
}
eti_table_model_changed (table_model, eti);
}
static void
eti_header_dim_changed (ETableHeader *eth, int col, ETableItem *eti)
{
eti_request_redraw (eti);
eti->width = e_table_header_total_width (eti->header);
eti_update (GNOME_CANVAS_ITEM (eti), NULL, NULL, 0);
eti_request_redraw (eti);
}
static void
eti_header_structure_changed (ETableHeader *eth, ETableItem *eti)
{
eti_request_redraw (eti);
eti->cols = e_table_header_count (eti->header);
eti->width = e_table_header_total_width (eti->header);
/*
* There should be at least one column
*/
g_assert (eti->cols != 0);
if (eti->cell_views){
eti_unrealize_cell_views (eti);
eti_detach_cell_views (eti);
eti_attach_cell_views (eti);
eti_realize_cell_views (eti);
} else {
if (eti->table_model){
eti_detach_cell_views (eti);
eti_attach_cell_views (eti);
}
}
eti_update (GNOME_CANVAS_ITEM (eti), NULL, NULL, 0);
eti_request_redraw (eti);
}
static void
eti_add_header_model (ETableItem *eti, ETableHeader *header)
{
g_assert (eti->header == NULL);
eti->header = header;
gtk_object_ref (GTK_OBJECT (header));
eti_header_structure_changed (header, eti);
eti->header_dim_change_id = gtk_signal_connect (
GTK_OBJECT (header), "dimension_change",
GTK_SIGNAL_FUNC (eti_header_dim_changed), eti);
eti->header_structure_change_id = gtk_signal_connect (
GTK_OBJECT (header), "structure_change",
GTK_SIGNAL_FUNC (eti_header_structure_changed), eti);
}
/*
* GtkObject::destroy method
*/
static void
eti_destroy (GtkObject *object)
{
ETableItem *eti = E_TABLE_ITEM (object);
eti_remove_header_model (eti);
eti_remove_table_model (eti);
g_slist_free (eti->selection);
if (GTK_OBJECT_CLASS (eti_parent_class)->destroy)
(*GTK_OBJECT_CLASS (eti_parent_class)->destroy) (object);
}
static void
eti_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
GnomeCanvasItem *item;
ETableItem *eti;
item = GNOME_CANVAS_ITEM (o);
eti = E_TABLE_ITEM (o);
switch (arg_id){
case ARG_TABLE_HEADER:
eti_remove_header_model (eti);
eti_add_header_model (eti, GTK_VALUE_POINTER (*arg));
break;
case ARG_TABLE_MODEL:
eti_remove_table_model (eti);
eti_add_table_model (eti, GTK_VALUE_POINTER (*arg));
break;
case ARG_LENGHT_THRESHOLD:
eti->length_threshold = GTK_VALUE_INT (*arg);
break;
case ARG_TABLE_DRAW_GRID:
eti->draw_grid = GTK_VALUE_BOOL (*arg);
break;
case ARG_TABLE_DRAW_FOCUS:
eti->draw_focus = GTK_VALUE_BOOL (*arg);
break;
case ARG_MODE_SPREADSHEET:
eti->mode_spreadsheet = GTK_VALUE_BOOL (*arg);
break;
}
eti_update (item, NULL, NULL, 0);
}
static void
eti_get_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
GnomeCanvasItem *item;
ETableItem *eti;
item = GNOME_CANVAS_ITEM (o);
eti = E_TABLE_ITEM (o);
switch (arg_id){
case ARG_WIDTH:
GTK_VALUE_DOUBLE (*arg) = eti->width;
break;
case ARG_HEIGHT:
GTK_VALUE_DOUBLE (*arg) = eti->height;
break;
default:
arg->type = GTK_TYPE_INVALID;
}
}
static void
eti_init (GnomeCanvasItem *item)
{
ETableItem *eti = E_TABLE_ITEM (item);
eti->focused_col = -1;
eti->focused_row = -1;
eti->editing_col = -1;
eti->editing_row = -1;
eti->height = 0;
eti->length_threshold = -1;
eti->renderers_can_change_size = 1;
eti->selection_mode = GTK_SELECTION_SINGLE;
}
#define gray50_width 2
#define gray50_height 2
static const char gray50_bits[] = {
0x02, 0x01, };
static void
eti_realize (GnomeCanvasItem *item)
{
ETableItem *eti = E_TABLE_ITEM (item);
GtkWidget *canvas_widget = GTK_WIDGET (item->canvas);
GdkWindow *window;
if (GNOME_CANVAS_ITEM_CLASS (eti_parent_class)->realize)
(*GNOME_CANVAS_ITEM_CLASS (eti_parent_class)->realize)(item);
/*
* Gdk Resource allocation
*/
window = canvas_widget->window;
eti->fill_gc = canvas_widget->style->white_gc;
gdk_gc_ref (canvas_widget->style->white_gc);
eti->grid_gc = gdk_gc_new (window);
#if 0
/* This sets it to gray */
/* gdk_gc_set_foreground (eti->grid_gc, &canvas_widget->style->bg [GTK_STATE_NORMAL]); */
#else
gdk_gc_set_foreground (eti->grid_gc, &canvas_widget->style->black);
#endif
eti->focus_gc = gdk_gc_new (window);
gdk_gc_set_foreground (eti->focus_gc, &canvas_widget->style->bg [GTK_STATE_NORMAL]);
gdk_gc_set_background (eti->focus_gc, &canvas_widget->style->fg [GTK_STATE_NORMAL]);
eti->stipple = gdk_bitmap_create_from_data (NULL, gray50_bits, gray50_width, gray50_height);
gdk_gc_set_ts_origin (eti->focus_gc, 0, 0);
gdk_gc_set_stipple (eti->focus_gc, eti->stipple);
gdk_gc_set_fill (eti->focus_gc, GDK_OPAQUE_STIPPLED);
if (eti->cell_views == NULL)
eti_attach_cell_views (eti);
eti_realize_cell_views (eti);
eti_compute_height (eti);
eti_update (item, NULL, NULL, 0);
}
static void
eti_unrealize (GnomeCanvasItem *item)
{
ETableItem *eti = E_TABLE_ITEM (item);
gdk_gc_unref (eti->fill_gc);
eti->fill_gc = NULL;
gdk_gc_unref (eti->grid_gc);
eti->grid_gc = NULL;
gdk_gc_unref (eti->focus_gc);
eti->focus_gc = NULL;
gdk_bitmap_unref (eti->stipple);
eti->stipple = NULL;
eti_unrealize_cell_views (eti);
eti->height = 0;
if (GNOME_CANVAS_ITEM_CLASS (eti_parent_class)->unrealize)
(*GNOME_CANVAS_ITEM_CLASS (eti_parent_class)->unrealize)(item);
}
static void
eti_draw (GnomeCanvasItem *item, GdkDrawable *drawable, int x, int y, int width, int height)
{
ETableItem *eti = E_TABLE_ITEM (item);
const int rows = eti->rows;
const int cols = eti->cols;
int row, col, y1, y2;
int first_col, last_col, x_offset;
int first_row, last_row, y_offset, yd;
int x1, x2;
int f_x1, f_x2, f_y1, f_y2;
gboolean f_found;
double i2c [6];
ArtPoint eti_base, eti_base_item;
/*
* Clear the background
*/
#if 0
gdk_draw_rectangle (
drawable, eti->fill_gc, TRUE,
eti->x1 - x, eti->y1 - y, eti->width, eti->height);
#endif
/*
* Find out our real position after grouping
*/
gnome_canvas_item_i2c_affine (item, i2c);
eti_base_item.x = eti->x1;
eti_base_item.y = eti->y1;
art_affine_point (&eti_base, &eti_base_item, i2c);
/*
* First column to draw, last column to draw
*/
first_col = -1;
last_col = x_offset = 0;
x1 = x2 = floor (eti_base.x);
for (col = 0; col < cols; col++, x1 = x2){
ETableCol *ecol = e_table_header_get_column (eti->header, col);
x2 = x1 + ecol->width;
if (x1 > (x + width))
break;
if (x2 < x)
continue;
if (first_col == -1){
x_offset = x1 - x;
first_col = col;
}
}
last_col = col;
/*
* Nothing to paint
*/
if (first_col == -1)
return;
/*
* Compute row span.
*/
first_row = -1;
y_offset = 0;
y1 = y2 = floor (eti_base.y) + 1;
for (row = 0; row < rows; row++, y1 = y2){
y2 += eti_row_height (eti, row) + 1;
if (y1 > y + height)
break;
if (y2 < y)
continue;
if (first_row == -1){
y_offset = y1 - y;
first_row = row;
}
}
last_row = row;
if (first_row == -1)
return;
/*
* Draw cells
*/
yd = y_offset;
f_x1 = f_x2 = f_y1 = f_y2 = -1;
f_found = FALSE;
if (eti->draw_grid && first_row == 0){
gdk_draw_line (
drawable, eti->grid_gc,
eti_base.x - x, yd, eti_base.x + eti->width - x, yd);
}
yd++;
for (row = first_row; row < last_row; row++){
int xd, height;
gboolean selected;
height = eti_row_height (eti, row);
xd = x_offset;
/* printf ("paint: %d %d\n", yd, yd + height); */
selected = g_slist_find (eti->selection, GINT_TO_POINTER (row)) != NULL;
for (col = first_col; col < last_col; col++){
ETableCol *ecol = e_table_header_get_column (eti->header, col);
ECellView *ecell_view = eti->cell_views [col];
e_cell_draw (ecell_view, drawable, ecol->col_idx, col, row, selected,
xd, yd, xd + ecol->width, yd + height);
if (col == eti->focused_col && row == eti->focused_row){
f_x1 = xd;
f_x2 = xd + ecol->width;
f_y1 = yd;
f_y2 = yd + height;
f_found = TRUE;
}
xd += ecol->width;
}
yd += height;
if (eti->draw_grid)
gdk_draw_line (
drawable, eti->grid_gc,
eti_base.x - x, yd, eti_base.x + eti->width - x, yd);
yd++;
}
if (eti->draw_grid){
int xd = x_offset;
for (col = first_col; col <= last_col; col++){
ETableCol *ecol = e_table_header_get_column (eti->header, col);
gdk_draw_line (
drawable, eti->grid_gc,
xd, y_offset, xd, yd - 1);
/*
* This looks wierd, but it is to draw the last line
*/
if (ecol)
xd += ecol->width;
}
}
/*
* Draw focus
*/
if (f_found && eti->draw_focus){
if (!eti_editing (eti))
gdk_draw_rectangle (
drawable, eti->focus_gc, FALSE,
f_x1 + 1, f_y1, f_x2 - f_x1 - 2, f_y2 - f_y1 - 1);
}
}
static double
eti_point (GnomeCanvasItem *item, double x, double y, int cx, int cy,
GnomeCanvasItem **actual_item)
{
*actual_item = item;
return 0.0;
}
static gboolean
find_cell (ETableItem *eti, double x, double y, int *col_res, int *row_res, double *x1_res, double *y1_res)
{
const int cols = eti->cols;
const int rows = eti->rows;
gdouble x1, y1, x2, y2;
int col, row;
/* FIXME: this routine is inneficient, fix later */
x -= eti->x1;
y -= eti->y1;
x1 = 0;
for (col = 0; col < cols; col++, x1 = x2){
ETableCol *ecol = e_table_header_get_column (eti->header, col);
if (x < x1)
return FALSE;
x2 = x1 + ecol->width;
if (x > x2)
continue;
*col_res = col;
if (x1_res)
*x1_res = x - x1;
break;
}
y1 = y2 = 0;
for (row = 0; row < rows; row++, y1 = y2){
if (y < y1)
return FALSE;
y2 += eti_row_height (eti, row) + 1;
if (y > y2)
continue;
*row_res = row;
if (y1_res)
*y1_res = y - y1;
break;
}
return TRUE;
}
static void
eti_cursor_move (ETableItem *eti, gint row, gint column)
{
e_table_item_leave_edit (eti);
e_table_item_focus (eti, column, row);
}
static void
eti_cursor_move_left (ETableItem *eti)
{
eti_cursor_move(eti, eti->focused_row, eti->focused_col - 1);
}
static void
eti_cursor_move_right (ETableItem *eti)
{
eti_cursor_move(eti, eti->focused_row, eti->focused_col + 1);
}
static void
eti_cursor_move_up (ETableItem *eti)
{
eti_cursor_move(eti, eti->focused_row - 1, eti->focused_col);
}
static void
eti_cursor_move_down (ETableItem *eti)
{
eti_cursor_move(eti, eti->focused_row + 1, eti->focused_col);
}
static int
eti_event (GnomeCanvasItem *item, GdkEvent *e)
{
ETableItem *eti = E_TABLE_ITEM (item);
ECellView *ecell_view;
ETableCol *ecol;
gint return_val = TRUE;
switch (e->type){
case GDK_BUTTON_PRESS:
case GDK_BUTTON_RELEASE:
case GDK_2BUTTON_PRESS: {
double x1, y1;
int col, row;
gnome_canvas_item_w2i (item, &e->button.x, &e->button.y);
if (!find_cell (eti, e->button.x, e->button.y, &col, &row, &x1, &y1))
return TRUE;
if (eti->focused_row == row && eti->focused_col == col){
ecol = e_table_header_get_column (eti->header, col);
ecell_view = eti->cell_views [col];
/*
* Adjust the event positions
*/
e->button.x = x1;
e->button.y = y1;
e_cell_event (ecell_view, e, ecol->col_idx, col, row);
} else {
/*
* Focus the cell, and select the row
*/
e_table_item_leave_edit (eti);
e_table_item_focus (eti, col, row);
e_table_item_select_row (eti, row);
}
break;
}
case GDK_MOTION_NOTIFY: {
int col, row;
double x1, y1;
gnome_canvas_item_w2i (item, &e->motion.x, &e->motion.y);
if (!find_cell (eti, e->motion.x, e->motion.y, &col, &row, &x1, &y1))
return TRUE;
if (eti->focused_row == row && eti->focused_col == col){
ecol = e_table_header_get_column (eti->header, col);
ecell_view = eti->cell_views [col];
/*
* Adjust the event positions
*/
e->motion.x = x1;
e->motion.y = y1;
e_cell_event (ecell_view, e, ecol->col_idx, col, row);
}
break;
}
case GDK_KEY_PRESS:
if (eti->focused_col == -1)
return FALSE;
switch (e->key.keyval){
case GDK_Left:
if (!eti->mode_spreadsheet && eti_editing (eti))
break;
if (eti->focused_col > 0)
eti_cursor_move_left (eti);
break;
case GDK_Right:
if (!eti->mode_spreadsheet && eti_editing (eti))
break;
if (eti->focused_col < eti->cols - 1)
eti_cursor_move_right (eti);
break;
case GDK_Up:
if (eti->focused_row > 0)
eti_cursor_move_up (eti);
else
return_val = FALSE;
break;
case GDK_Down:
if ((eti->focused_row + 1) < eti->rows)
eti_cursor_move_down (eti);
else
return_val = FALSE;
break;
case GDK_Tab:
case GDK_KP_Tab:
case GDK_ISO_Left_Tab:
if ((e->key.state & GDK_SHIFT_MASK) != 0){
/* shift tab */
if (eti->focused_col > 0)
eti_cursor_move_left (eti);
else if (eti->focused_row > 0)
eti_cursor_move(eti, eti->focused_row - 1, eti->cols - 1);
else
return_val = FALSE;
} else {
if (eti->focused_col < eti->cols - 1)
eti_cursor_move_right (eti);
else if (eti->focused_row < eti->rows - 1)
eti_cursor_move(eti, eti->focused_row + 1, 0);
else
return_val = FALSE;
}
break;
default:
if (!eti_editing (eti)){
if ((e->key.state & (GDK_MOD1_MASK | GDK_CONTROL_MASK)) != 0)
return_val = FALSE;
if (!(e->key.keyval >= 0x20 && e->key.keyval <= 0xff))
return_val = FALSE;
}
ecol = e_table_header_get_column (eti->header, eti->focused_col);
ecell_view = eti->cell_views [eti->focused_col];
e_cell_event (ecell_view, e, ecol->col_idx, eti->focused_col, eti->focused_row);
}
break;
case GDK_KEY_RELEASE:
if (eti->focused_col == -1)
return FALSE;
if (eti_editing (eti)){
ecell_view = eti->cell_views [eti->editing_col];
ecol = e_table_header_get_column (eti->header, eti->editing_col);
e_cell_event (ecell_view, e, ecol->col_idx, eti->editing_col, eti->editing_row);
}
break;
case GDK_FOCUS_CHANGE:
if (e->focus_change.in) {
} else {
e_table_item_leave_edit (eti);
e_table_item_unfocus (eti);
}
default:
return_val = FALSE;
}
return return_val;
}
/*
* ETableItem::row_selection method
*/
static void
eti_row_selection (ETableItem *eti, int row, gboolean selected)
{
eti_request_region_redraw (eti, 0, row, eti->cols - 1, row, 0);
if (selected)
eti->selection = g_slist_prepend (eti->selection, GINT_TO_POINTER (row));
else
eti->selection = g_slist_remove (eti->selection, GINT_TO_POINTER (row));
}
static void
eti_class_init (GtkObjectClass *object_class)
{
GnomeCanvasItemClass *item_class = (GnomeCanvasItemClass *) object_class;
ETableItemClass *eti_class = (ETableItemClass *) object_class;
eti_parent_class = gtk_type_class (PARENT_OBJECT_TYPE);
object_class->destroy = eti_destroy;
object_class->set_arg = eti_set_arg;
object_class->get_arg = eti_get_arg;
item_class->update = eti_update;
item_class->realize = eti_realize;
item_class->unrealize = eti_unrealize;
item_class->draw = eti_draw;
item_class->point = eti_point;
item_class->event = eti_event;
item_class->bounds = eti_bounds;
eti_class->row_selection = eti_row_selection;
gtk_object_add_arg_type ("ETableItem::ETableHeader", GTK_TYPE_POINTER,
GTK_ARG_WRITABLE, ARG_TABLE_HEADER);
gtk_object_add_arg_type ("ETableItem::ETableModel", GTK_TYPE_POINTER,
GTK_ARG_WRITABLE, ARG_TABLE_MODEL);
gtk_object_add_arg_type ("ETableItem::drawgrid", GTK_TYPE_BOOL,
GTK_ARG_WRITABLE, ARG_TABLE_DRAW_GRID);
gtk_object_add_arg_type ("ETableItem::drawfocus", GTK_TYPE_BOOL,
GTK_ARG_WRITABLE, ARG_TABLE_DRAW_FOCUS);
gtk_object_add_arg_type ("ETableItem::spreadsheet", GTK_TYPE_BOOL,
GTK_ARG_WRITABLE, ARG_MODE_SPREADSHEET);
gtk_object_add_arg_type ("ETableItem::width", GTK_TYPE_DOUBLE,
GTK_ARG_READWRITE, ARG_WIDTH);
gtk_object_add_arg_type ("ETableItem::height", GTK_TYPE_DOUBLE,
GTK_ARG_READABLE, ARG_HEIGHT);
gtk_object_add_arg_type ("ETableItem::has_focus", GTK_TYPE_BOOL,
GTK_ARG_READWRITE, ARG_HAS_FOCUS);
eti_signals [ROW_SELECTION] =
gtk_signal_new ("row_selection",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableItemClass, row_selection),
gtk_marshal_NONE__INT_INT,
GTK_TYPE_NONE, 2, GTK_TYPE_INT, GTK_TYPE_INT);
eti_signals [RESIZE] =
gtk_signal_new ("resize",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableItemClass, resize),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, eti_signals, LAST_SIGNAL);
}
GtkType
e_table_item_get_type (void)
{
static GtkType type = 0;
if (!type){
GtkTypeInfo info = {
"ETableItem",
sizeof (ETableItem),
sizeof (ETableItemClass),
(GtkClassInitFunc) eti_class_init,
(GtkObjectInitFunc) eti_init,
NULL, /* reserved 1 */
NULL, /* reserved 2 */
(GtkClassInitFunc) NULL
};
type = gtk_type_unique (PARENT_OBJECT_TYPE, &info);
}
return type;
}
void
e_table_item_focus (ETableItem *eti, int col, int row)
{
g_return_if_fail (eti != NULL);
g_return_if_fail (E_IS_TABLE_ITEM (eti));
/*
* make sure we have the Gtk Focus
*/
gnome_canvas_item_grab_focus (GNOME_CANVAS_ITEM (eti));
if (eti->focused_col != -1)
e_table_item_unfocus (eti);
eti->focused_col = col;
eti->focused_row = row;
eti_request_region_redraw (eti, col, row, col, row, FOCUSED_BORDER);
}
void
e_table_item_unfocus (ETableItem *eti)
{
g_return_if_fail (eti != NULL);
g_return_if_fail (E_IS_TABLE_ITEM (eti));
if (eti->focused_row == -1)
return;
{
const int col = eti->focused_col;
const int row = eti->focused_row;
eti_request_region_redraw (eti, col, row, col, row, FOCUSED_BORDER);
}
eti->focused_col = -1;
eti->focused_row = -1;
}
gint
e_table_item_get_focused_column (ETableItem *eti)
{
g_return_val_if_fail (eti != NULL, -1);
g_return_val_if_fail (E_IS_TABLE_ITEM (eti), -1);
return eti->focused_col;
}
const GSList *
e_table_item_get_selection (ETableItem *eti)
{
g_return_val_if_fail (eti != NULL, NULL);
g_return_val_if_fail (E_IS_TABLE_ITEM (eti), NULL);
return eti->selection;
}
GtkSelectionMode
e_table_item_get_selection_mode (ETableItem *eti)
{
g_return_val_if_fail (eti != NULL, GTK_SELECTION_SINGLE);
g_return_val_if_fail (E_IS_TABLE_ITEM (eti), GTK_SELECTION_SINGLE);
return eti->selection_mode;
}
void
e_table_item_set_selection_mode (ETableItem *eti, GtkSelectionMode selection_mode)
{
g_return_if_fail (eti != NULL);
g_return_if_fail (E_IS_TABLE_ITEM (eti));
if (selection_mode == GTK_SELECTION_BROWSE ||
selection_mode == GTK_SELECTION_EXTENDED){
g_error ("GTK_SELECTION_BROWSE and GTK_SELECTION_EXTENDED are not implemented");
}
eti->selection_mode = selection_mode;
}
gboolean
e_table_item_is_row_selected (ETableItem *eti, int row)
{
g_return_val_if_fail (eti != NULL, FALSE);
g_return_val_if_fail (E_IS_TABLE_ITEM (eti), FALSE);
if (g_slist_find (eti->selection, GINT_TO_POINTER (row)))
return TRUE;
else
return FALSE;
}
void
e_table_item_unselect_row (ETableItem *eti, int row)
{
g_return_if_fail (eti != NULL);
g_return_if_fail (E_IS_TABLE_ITEM (eti));
if (e_table_item_is_row_selected (eti, row)){
gtk_signal_emit (
GTK_OBJECT (eti), eti_signals [ROW_SELECTION],
row, 0);
}
}
void
e_table_item_select_row (ETableItem *eti, int row)
{
g_return_if_fail (eti != NULL);
g_return_if_fail (E_IS_TABLE_ITEM (eti));
switch (eti->selection_mode){
case GTK_SELECTION_SINGLE:
if (eti->selection){
gtk_signal_emit (
GTK_OBJECT (eti), eti_signals [ROW_SELECTION],
GPOINTER_TO_INT (eti->selection->data), 0);
}
g_slist_free (eti->selection);
eti->selection = NULL;
gtk_signal_emit (
GTK_OBJECT (eti), eti_signals [ROW_SELECTION],
GINT_TO_POINTER (row), 1);
break;
case GTK_SELECTION_MULTIPLE:
if (g_slist_find (eti->selection, GINT_TO_POINTER (row)))
return;
gtk_signal_emit (
GTK_OBJECT (eti), eti_signals [ROW_SELECTION],
GINT_TO_POINTER (row), 1);
break;
default:
}
}
void
e_table_item_enter_edit (ETableItem *eti, int col, int row)
{
ETableCol *ecol;
g_return_if_fail (eti != NULL);
g_return_if_fail (E_IS_TABLE_ITEM (eti));
eti->editing_col = col;
eti->editing_row = row;
ecol = e_table_header_get_column (eti->header, col);
eti->edit_ctx = e_cell_enter_edit (eti->cell_views [col], ecol->col_idx, col, row);
}
void
e_table_item_leave_edit (ETableItem *eti)
{
ETableCol *ecol;
g_return_if_fail (eti != NULL);
g_return_if_fail (E_IS_TABLE_ITEM (eti));
if (!eti_editing (eti))
return;
ecol = e_table_header_get_column (eti->header, eti->editing_col);
e_cell_leave_edit (
eti->cell_views [eti->editing_col],
ecol->col_idx, eti->editing_col,
eti->editing_row, eti->edit_ctx);
eti->editing_col = -1;
eti->editing_row = -1;
eti->edit_ctx = NULL;
}