Commit ca9e0c0e authored by Benjamin Otte's avatar Benjamin Otte Committed by Matthias Clasen
Browse files

gtk-demo: Add a minesweeper demo

The demo shows creating ones own listmodel and using it to fill a grid.

I am totally getting the hang of React btw:
500 lines of logic with no UI code and 100 lines of GtkBuilder XML and
I get a sweet UI.
parent 0e1632d0
......@@ -128,6 +128,10 @@
<gresource prefix="/listview_filebrowser">
<file>listview_filebrowser.ui</file>
</gresource>
<gresource prefix="/listview_minesweeper">
<file>listview_minesweeper.ui</file>
<file>listview_minesweeper_cell.ui</file>
</gresource>
<gresource prefix="/listview_settings">
<file>listview_settings.ui</file>
</gresource>
......@@ -212,6 +216,7 @@
<file>links.c</file>
<file>listbox.c</file>
<file>listview_filebrowser.c</file>
<file>listview_minesweeper.c</file>
<file>listview_settings.c</file>
<file>listview_weather.c</file>
<file>list_store.c</file>
......
/* Lists/Minesweeper
*
* This demo shows how to develop a user interface for small game using a
* gridview.
*
* It demonstrates how to use the activate signal and single-press behavior
* to implement rather different interaction behavior to a typical list.
*/
#include <glib/gi18n.h>
#include <gtk/gtk.h>
/*** The cell object ***/
/* Create an object that holds the data for a cell in the game */
typedef struct _SweeperCell SweeperCell;
struct _SweeperCell
{
GObject parent_instance;
gboolean is_mine;
gboolean is_visible;
guint neighbor_mines;
};
enum {
CELL_PROP_0,
CELL_PROP_LABEL,
N_CELL_PROPS
};
#define SWEEPER_TYPE_CELL (sweeper_cell_get_type ())
G_DECLARE_FINAL_TYPE (SweeperCell, sweeper_cell, SWEEPER, CELL, GObject);
G_DEFINE_TYPE (SweeperCell, sweeper_cell, G_TYPE_OBJECT);
static GParamSpec *cell_properties[N_CELL_PROPS] = { NULL, };
static const char *
sweeper_cell_get_label (SweeperCell *self)
{
static const char *minecount_labels[10] = { "", "1", "2", "3", "4", "5", "6", "7", "8", "9" };
if (!self->is_visible)
return "?";
if (self->is_mine)
return "💣";
return minecount_labels[self->neighbor_mines];
}
static void
sweeper_cell_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
SweeperCell *self = SWEEPER_CELL (object);
switch (property_id)
{
case CELL_PROP_LABEL:
g_value_set_string (value, sweeper_cell_get_label (self));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
sweeper_cell_class_init (SweeperCellClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->get_property = sweeper_cell_get_property;
cell_properties[CELL_PROP_LABEL] =
g_param_spec_string ("label",
"label",
"label to display for this row",
NULL,
G_PARAM_READABLE);
g_object_class_install_properties (gobject_class, N_CELL_PROPS, cell_properties);
}
static void
sweeper_cell_init (SweeperCell *self)
{
}
static void
sweeper_cell_reveal (SweeperCell *self)
{
if (self->is_visible)
return;
self->is_visible = TRUE;
g_object_notify_by_pspec (G_OBJECT (self), cell_properties[CELL_PROP_LABEL]);
}
static SweeperCell *
sweeper_cell_new (void)
{
return g_object_new (SWEEPER_TYPE_CELL, NULL);
}
/*** The board object ***/
/* Create an object that holds the data for the game */
typedef struct _SweeperGame SweeperGame;
struct _SweeperGame
{
GObject parent_instance;
GPtrArray *cells;
guint width;
guint height;
gboolean playing;
gboolean win;
};
enum {
GAME_PROP_0,
GAME_PROP_HEIGHT,
GAME_PROP_PLAYING,
GAME_PROP_WIDTH,
GAME_PROP_WIN,
N_GAME_PROPS
};
#define SWEEPER_TYPE_GAME (sweeper_game_get_type ())
G_DECLARE_FINAL_TYPE (SweeperGame, sweeper_game, SWEEPER, GAME, GObject);
static GType
sweeper_game_list_model_get_item_type (GListModel *model)
{
return SWEEPER_TYPE_GAME;
}
static guint
sweeper_game_list_model_get_n_items (GListModel *model)
{
SweeperGame *self = SWEEPER_GAME (model);
return self->width * self->height;
}
static gpointer
sweeper_game_list_model_get_item (GListModel *model,
guint position)
{
SweeperGame *self = SWEEPER_GAME (model);
return g_object_ref (g_ptr_array_index (self->cells, position));
}
static void
sweeper_game_list_model_init (GListModelInterface *iface)
{
iface->get_item_type = sweeper_game_list_model_get_item_type;
iface->get_n_items = sweeper_game_list_model_get_n_items;
iface->get_item = sweeper_game_list_model_get_item;
}
G_DEFINE_TYPE_WITH_CODE (SweeperGame, sweeper_game, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, sweeper_game_list_model_init))
static GParamSpec *game_properties[N_GAME_PROPS] = { NULL, };
static void
sweeper_game_dispose (GObject *object)
{
SweeperGame *self = SWEEPER_GAME (object);
g_clear_pointer (&self->cells, g_ptr_array_unref);
G_OBJECT_CLASS (sweeper_game_parent_class)->dispose (object);
}
static void
sweeper_game_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
SweeperGame *self = SWEEPER_GAME (object);
switch (property_id)
{
case GAME_PROP_HEIGHT:
g_value_set_uint (value, self->height);
break;
case GAME_PROP_PLAYING:
g_value_set_boolean (value, self->playing);
break;
case GAME_PROP_WIDTH:
g_value_set_uint (value, self->width);
break;
case GAME_PROP_WIN:
g_value_set_boolean (value, self->win);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
sweeper_game_class_init (SweeperGameClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->dispose = sweeper_game_dispose;
gobject_class->get_property = sweeper_game_get_property;
game_properties[GAME_PROP_HEIGHT] =
g_param_spec_uint ("height",
"height",
"height of the game grid",
1, G_MAXUINT, 8,
G_PARAM_READABLE);
game_properties[GAME_PROP_PLAYING] =
g_param_spec_boolean ("playing",
"playing",
"if the game is still going on",
FALSE,
G_PARAM_READABLE);
game_properties[GAME_PROP_WIDTH] =
g_param_spec_uint ("width",
"width",
"width of the game grid",
1, G_MAXUINT, 8,
G_PARAM_READABLE);
game_properties[GAME_PROP_WIN] =
g_param_spec_boolean ("win",
"win",
"if the game was won",
FALSE,
G_PARAM_READABLE);
g_object_class_install_properties (gobject_class, N_GAME_PROPS, game_properties);
}
static void
sweeper_game_reset_board (SweeperGame *self,
guint width,
guint height)
{
guint i;
g_ptr_array_set_size (self->cells, 0);
for (i = 0; i < width * height; i++)
{
g_ptr_array_add (self->cells, sweeper_cell_new ());
}
if (self->width != width)
{
self->width = width;
g_object_notify_by_pspec (G_OBJECT (self), game_properties[GAME_PROP_WIDTH]);
}
if (self->height != height)
{
self->height = height;
g_object_notify_by_pspec (G_OBJECT (self), game_properties[GAME_PROP_HEIGHT]);
}
if (!self->playing)
{
self->playing = TRUE;
g_object_notify_by_pspec (G_OBJECT (self), game_properties[GAME_PROP_PLAYING]);
}
if (self->win)
{
self->win = FALSE;
g_object_notify_by_pspec (G_OBJECT (self), game_properties[GAME_PROP_WIN]);
}
}
static void
sweeper_game_place_mines (SweeperGame *self,
guint n_mines)
{
guint i;
for (i = 0; i < n_mines; i++)
{
SweeperCell *cell;
do {
cell = g_ptr_array_index (self->cells, g_random_int_range (0, self->cells->len));
} while (cell->is_mine);
cell->is_mine = TRUE;
}
}
static SweeperCell *
get_cell (SweeperGame *self,
guint x,
guint y)
{
return g_ptr_array_index (self->cells, y * self->width + x);
}
static void
sweeper_game_count_neighbor_mines (SweeperGame *self,
guint width,
guint height)
{
guint x, y, x2, y2;
for (y = 0; y < height; y++)
{
for (x = 0; x < width; x++)
{
SweeperCell *cell = get_cell (self, x, y);
for (y2 = MAX (1, y) - 1; y2 < MIN (height, y + 2); y2++)
{
for (x2 = MAX (1, x) - 1; x2 < MIN (width, x + 2); x2++)
{
SweeperCell *other = get_cell (self, x2, y2);
if (other->is_mine)
cell->neighbor_mines++;
}
}
}
}
}
static void
sweeper_game_new_game (SweeperGame *self,
guint width,
guint height,
guint n_mines)
{
guint n_items_before;
g_return_if_fail (n_mines <= width * height);
n_items_before = self->width * self->height;
g_object_freeze_notify (G_OBJECT (self));
sweeper_game_reset_board (self, width, height);
sweeper_game_place_mines (self, n_mines);
sweeper_game_count_neighbor_mines (self, width, height);
g_list_model_items_changed (G_LIST_MODEL (self), 0, n_items_before, width * height);
g_object_thaw_notify (G_OBJECT (self));
}
static void
sweeper_game_init (SweeperGame *self)
{
self->cells = g_ptr_array_new_with_free_func (g_object_unref);
sweeper_game_new_game (self, 8, 8, 10);
}
static void
sweeper_game_end (SweeperGame *self,
gboolean win)
{
if (self->playing)
{
self->playing = FALSE;
g_object_notify_by_pspec (G_OBJECT (self), game_properties[GAME_PROP_PLAYING]);
}
if (self->win != win)
{
self->win = win;
g_object_notify_by_pspec (G_OBJECT (self), game_properties[GAME_PROP_WIN]);
}
}
static void
sweeper_game_check_finished (SweeperGame *self)
{
guint i;
if (!self->playing)
return;
for (i = 0; i < self->cells->len; i++)
{
SweeperCell *cell = g_ptr_array_index (self->cells, i);
/* There's still a non-revealed cell that isn't a mine */
if (!cell->is_visible && !cell->is_mine)
return;
}
sweeper_game_end (self, TRUE);
}
static void
sweeper_game_reveal_cell (SweeperGame *self,
guint position)
{
SweeperCell *cell;
if (!self->playing)
return;
cell = g_ptr_array_index (self->cells, position);
sweeper_cell_reveal (cell);
if (cell->is_mine)
sweeper_game_end (self, FALSE);
sweeper_game_check_finished (self);
}
void
minesweeper_cell_clicked_cb (GtkGridView *gridview,
guint pos,
SweeperGame *game)
{
sweeper_game_reveal_cell (game, pos);
}
void
minesweeper_new_game_cb (GtkButton *button,
SweeperGame *game)
{
sweeper_game_new_game (game, 8, 8, 10);
}
static GtkWidget *window = NULL;
GtkWidget *
do_listview_minesweeper (GtkWidget *do_widget)
{
if (window == NULL)
{
GtkBuilder *builder;
g_type_ensure (SWEEPER_TYPE_GAME);
builder = gtk_builder_new_from_resource ("/listview_minesweeper/listview_minesweeper.ui");
window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *) &window);
g_object_unref (builder);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<object class="SweeperGame" id="game">
</object>
<object class="GtkWindow" id="window">
<property name="title" translatable="yes">Minesweeper</property>
<child type="titlebar">
<object class="GtkHeaderBar" id="">
<property name="show-title-buttons">1</property>
<child>
<object class="GtkButton">
<property name="label">New Game</property>
<signal name="clicked" handler="minesweeper_new_game_cb" object="game" swapped="no"/>
</object>
</child>
<child type="title">
<object class="GtkImage">
<property name="icon-name">trophy-gold</property>
<binding name="visible">
<lookup name="win">game</lookup>
</binding>
</object>
</child>
</object>
</child>
<child>
<object class="GtkGridView" id="view">
<property name="model">
<object class="GtkNoSelection">
<property name="model">game</property>
</object>
</property>
<binding name="max-columns">
<lookup name="width">game</lookup>
</binding>
<binding name="min-columns">
<lookup name="width">game</lookup>
</binding>
<property name="factory">
<object class="GtkBuilderListItemFactory">
<property name="resource">/listview_minesweeper/listview_minesweeper_cell.ui</property>
</object>
</property>
<signal name="activate" handler="minesweeper_cell_clicked_cb" object="game" swapped="no"/>
</object>
</child>
</object>
</interface>
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<template class="GtkListItem">
<property name="child">
<object class="GtkLabel">
<property name="halign">center</property>
<property name="valign">center</property>
<binding name="label">
<lookup name="label" type="SweeperCell">
<lookup name="item">GtkListItem</lookup>
</lookup>
</binding>
</object>
</property>
</template>
</interface>
......@@ -43,6 +43,7 @@ demos = files([
'flowbox.c',
'list_store.c',
'listview_filebrowser.c',
'listview_minesweeper.c',
'listview_settings.c',
'listview_weather.c',
'markup.c',
......
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