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/*
* e-cell-toggle.c: Multi-state image toggle cell object.
*
* Author:
* Miguel de Icaza (miguel@kernel.org)
*
* (C) 1999 Helix Code, Inc
*/
#include <config.h>
#include <gtk/gtkenums.h>
#include <gtk/gtkentry.h>
#include <gtk/gtkwindow.h>
#include <gtk/gtksignal.h>
#include <gdk/gdkkeysyms.h>
#include <libgnomeui/gnome-canvas.h>
#include "e-cell-toggle.h"
#include "e-util.h"
#include "e-table-item.h"
#define PARENT_TYPE e_cell_get_type()
typedef struct {
ECellView cell_view;
GdkGC *gc;
GnomeCanvas *canvas;
ETableItem *eti;
} ECellToggleView;
static ECellClass *parent_class;
static void
etog_queue_redraw (ECellToggleView *text_view, int col, int row)
{
e_table_item_redraw_range (text_view->eti, col, row, col, row);
}
/*
* ECell::realize method
*/
static ECellView *
etog_realize (ECell *ecell, void *view)
{
ECellToggle *eccb = E_CELL_TOGGLE (ecell);
ECellToggleView *toggle_view = g_new0 (ECellToggleView, 1);
ETableItem *eti = E_TABLE_ITEM (view);
GnomeCanvas *canvas = GNOME_CANVAS_ITEM (eti)->canvas;
toggle_view->cell_view.ecell = ecell;
toggle_view->eti = eti;
toggle_view->canvas = canvas;
return (ECellView *) toggle_view;
}
/*
* ECell::unrealize method
*/
static void
etog_unrealize (ECellView *ecv)
{
ECellToggleView *toggle_view = (ECellToggleView *) ecv;
g_free (toggle_view);
}
/*
* ECell::draw method
*/
static void
etog_draw (ECellView *ecell_view, GdkDrawable *drawable,
int col, int row, gboolean selected,
int x1, int y1, int x2, int y2)
{
ECellToggle *toggle = E_CELL_TOGGLE (ecell_view->ecell);
ECellToggleView *toggle_view = (ECellToggleView *) ecell_view;
GdkPixbuf *image;
ArtPixBuf *art;
int x, y, width, height;
const int value = GPOINTER_TO_INT (
e_table_model_value_at (ecell_view->ecell->table_model, col, row));
if (value >= toggle->n_states){
g_warning ("Value from the table model is %d, the states we support are [0..%d)\n",
value, toggle->n_states);
return;
}
image = toggle->images [value];
art = image->art_pixbuf;
if ((x2 - x1) < art->width){
x = x1;
width = x2 - x1;
} else {
x = x1 + ((x2 - x1) - art->width) / 2;
width = art->width;
}
if ((y2 - y1) < art->height){
y = y1;
height = y2 - y1;
} else {
y = y1 + ((y2 - y1) - art->height) / 2;
height = art->height;
}
width = y2 - y1;
gdk_pixbuf_render_to_drawable_alpha (
image, drawable, 0, 0, x, y,
width, height,
GDK_PIXBUF_ALPHA_FULL, 0,
GDK_RGB_DITHER_NORMAL,
0, 0);
}
static void
etog_set_value (ECellToggleView *toggle_view, int col, int row, int value)
{
ECell *ecell = toggle_view->cell_view.ecell;
ECellToggle *toggle = E_CELL_TOGGLE (ecell);
if (value >= toggle->n_states)
value = 0;
e_table_model_set_value_at (ecell->table_model, col, row, GINT_TO_POINTER (value));
etog_queue_redraw (toggle_view, col, row);
}
/*
* ECell::event method
*/
static gint
etog_event (ECellView *ecell_view, GdkEvent *event, int col, int row)
{
ECellToggle *toggle = E_CELL_TOGGLE (ecell_view->ecell);
ECellToggleView *toggle_view = (ECellToggleView *) ecell_view;
void *_value = e_table_model_value_at (ecell_view->ecell->table_model, col, row);
const int value = GPOINTER_TO_INT (_value);
switch (event->type){
case GDK_BUTTON_RELEASE:
etog_set_value (toggle_view, col, row, value + 1);
return TRUE;
case GDK_KEY_PRESS:
if (event->key.keyval == GDK_space){
etog_set_value (toggle_view, col, row, value + 1);
return TRUE;
}
return FALSE;
default:
return FALSE;
}
return TRUE;
}
/*
* ECell::height method
*/
static int
etog_height (ECellView *ecell_view, int col, int row)
{
ECellToggle *toggle = E_CELL_TOGGLE (ecell_view->ecell);
return toggle->height;
}
static void
etog_destroy (GtkObject *object)
{
ECellToggle *etog = E_CELL_TOGGLE (object);
int i;
for (i = 0; i < etog->n_states; i++)
gdk_pixbuf_unref (etog->images [i]);
g_free (etog->images);
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
e_cell_toggle_class_init (GtkObjectClass *object_class)
{
ECellClass *ecc = (ECellClass *) object_class;
object_class->destroy = etog_destroy;
ecc->realize = etog_realize;
ecc->unrealize = etog_unrealize;
ecc->draw = etog_draw;
ecc->event = etog_event;
ecc->height = etog_height;
parent_class = gtk_type_class (PARENT_TYPE);
}
E_MAKE_TYPE(e_cell_text, "ECellToggle", ECellToggle, e_cell_toggle_class_init, NULL, PARENT_TYPE);
void
e_cell_toggle_construct (ECellToggle *etog, ETableModel *etm, int border, int n_states, GdkPixbuf **images)
{
int max_height = 0;
int i;
E_CELL (etog)->table_model = etm;
etog->border = border;
etog->n_states = n_states;
etog->images = g_new (GdkPixbuf *, n_states);
for (i = 0; i < n_states; i++){
etog->images [i] = images [i];
gdk_pixbuf_ref (images [i]);
if (images [i]->art_pixbuf->height > max_height)
max_height = images [i]->art_pixbuf->height;
}
etog->height = max_height;
}
ECell *
e_cell_toggle_new (ETableModel *etm, int border, int n_states, GdkPixbuf **images)
{
ECellToggle *etog = gtk_type_new (e_cell_toggle_get_type ());
e_cell_toggle_construct (etog, etm, border, n_states, images);
return (ECell *) etog;
}
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