ui_misc.c

来自「Gqview,Linux下基于GTK+库写成的轻量级而能丰富的图像浏览程序。」· C语言 代码 · 共 1,608 行 · 第 1/3 页

}

#if 0
void pref_spin_set_blocking(GtkWidget *spin, gdouble value, gpointer block_data)
{
	g_signal_handlers_block_matched(G_OBJECT(spin), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, block_data);
	gtk_spin_button_set_value(GTK_SPIN_BUTTON(spin), value);
	g_signal_handlers_unblock_matched(G_OBJECT(spin), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, block_data);
}
#endif

static void pref_link_sensitivity_cb(GtkWidget *watch, GtkStateType prev_state, gpointer data)
{
	GtkWidget *widget = data;

	gtk_widget_set_sensitive(widget, GTK_WIDGET_IS_SENSITIVE(watch));
}

void pref_link_sensitivity(GtkWidget *widget, GtkWidget *watch)
{
	g_signal_connect(G_OBJECT(watch), "state_changed",
			 G_CALLBACK(pref_link_sensitivity_cb), widget);
}

void pref_signal_block_data(GtkWidget *widget, gpointer data)
{
	g_signal_handlers_block_matched(widget, G_SIGNAL_MATCH_DATA,
					0, 0, NULL, NULL, data);
}

void pref_signal_unblock_data(GtkWidget *widget, gpointer data)
{
	g_signal_handlers_unblock_matched(widget, G_SIGNAL_MATCH_DATA,
					  0, 0, NULL, NULL, data);
}

GtkWidget *pref_table_new(GtkWidget *parent_box, gint columns, gint rows,
			  gint homogenious, gint fill)
{
	GtkWidget *table;

	table = gtk_table_new(rows, columns, homogenious);
	gtk_table_set_row_spacings(GTK_TABLE(table), PREF_PAD_GAP);
	gtk_table_set_col_spacings(GTK_TABLE(table), PREF_PAD_SPACE);

	if (parent_box)
		{
		gtk_box_pack_start(GTK_BOX(parent_box), table, fill, fill, 0);
		gtk_widget_show(table);
		}

	return table;
}

GtkWidget *pref_table_box(GtkWidget *table, gint column, gint row,
			  GtkOrientation orientation, const gchar *text)
{
	GtkWidget *box;
	GtkWidget *shell;

	if (text)
		{
		shell = gtk_vbox_new(FALSE, 0);
		box = pref_group_new(shell, TRUE, text, orientation);
		}
	else
		{
		if (orientation == GTK_ORIENTATION_HORIZONTAL)
			{
			box = gtk_hbox_new(FALSE, PREF_PAD_SPACE);
			}
		else
			{
			box = gtk_vbox_new(FALSE, PREF_PAD_GAP);
			}
		shell = box;
		}

	gtk_table_attach(GTK_TABLE(table), shell, column, column + 1, row, row + 1,
			 GTK_EXPAND | GTK_FILL, FALSE, 0, 0);

	gtk_widget_show(shell);

	return box;
}

GtkWidget *pref_table_label(GtkWidget *table, gint column, gint row,
			    const gchar *text, gfloat alignment)
{
	GtkWidget *label;
	GtkWidget *align;

	align = gtk_alignment_new(alignment, 0.50, 0.0, 0.0);
	gtk_table_attach(GTK_TABLE(table), align, column, column + 1, row, row + 1,
			 GTK_FILL, FALSE, 0, 0);
	gtk_widget_show(align);
	label = gtk_label_new(text);
	gtk_container_add(GTK_CONTAINER(align), label);
	gtk_widget_show(label);

	return label;
}

GtkWidget *pref_table_button(GtkWidget *table, gint column, gint row,
			     const gchar *stock_id, const gchar *text, gint hide_stock_text,
			     GCallback func, gpointer data)
{
	GtkWidget *button;

	button = pref_button_new(NULL, stock_id, text, hide_stock_text, func, data);
	gtk_table_attach(GTK_TABLE(table), button, column, column + 1, row, row + 1,
			 GTK_FILL, FALSE, 0, 0);
	gtk_widget_show(button);

	return button;
}

#if 0
static GtkWidget *pref_table_checkbox(GtkWidget *table, gint column, gint row,
				      const gchar *text, gint active,
				      GCallback func, gpointer data)
{
	GtkWidget *button;

	button = gtk_check_button_new_with_label(text);
	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), active);
	if (func) g_signal_connect(G_OBJECT(button), "clicked", func, data);

	gtk_table_attach(GTK_TABLE(table), button, column, column + 1, row, row + 1,
			 GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
	gtk_widget_show(button);

	return button;
}
#endif

GtkWidget *pref_table_spin(GtkWidget *table, gint column, gint row,
			   const gchar *text, const gchar *suffix,
			   gdouble min, gdouble max, gdouble step, gint digits,
			   gdouble value,
			   GCallback func, gpointer data)
{
	GtkWidget *spin;
	GtkWidget *box;
	GtkWidget *label;

	spin = gtk_spin_button_new_with_range(min, max, step);
	gtk_spin_button_set_digits(GTK_SPIN_BUTTON(spin), digits);
	gtk_spin_button_set_value(GTK_SPIN_BUTTON(spin), value);
	if (func)
		{
		g_signal_connect(G_OBJECT(spin), "value_changed", G_CALLBACK(func), data);
		}

	if (text)
		{
		label = pref_table_label(table, column, row, text, 1.0);
		pref_link_sensitivity(label, spin);
		column++;
		}

	if (suffix)
		{
		box = gtk_hbox_new(FALSE, PREF_PAD_SPACE);
		gtk_box_pack_start(GTK_BOX(box), spin, FALSE, FALSE, 0);
		gtk_widget_show(spin);

		label = pref_label_new(box, suffix);
		pref_link_sensitivity(label, spin);
		}
	else
		{
		box = spin;
		}

	gtk_table_attach(GTK_TABLE(table), box, column, column + 1, row, row + 1,
			 GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
	gtk_widget_show(box);

	return spin;
}

static void pref_toolbar_destroy_cb(GtkWidget *widget, gpointer data)
{
	GtkTooltips *tips = data;

	g_object_unref(G_OBJECT(tips));
}

GtkWidget *pref_toolbar_new(GtkWidget *parent_box, GtkToolbarStyle style)
{
	GtkWidget *tbar;
	GtkTooltips *tips;

	tbar = gtk_toolbar_new();
	gtk_toolbar_set_style(GTK_TOOLBAR(tbar), style);

	if (parent_box)
		{
		gtk_box_pack_start(GTK_BOX(parent_box), tbar, FALSE, FALSE, 0);
		gtk_widget_show(tbar);
		}

	tips = gtk_tooltips_new();
	g_object_ref(G_OBJECT(tips));
        gtk_object_sink(GTK_OBJECT(tips));
	g_object_set_data(G_OBJECT(tbar), "tooltips", tips);
	g_signal_connect(G_OBJECT(tbar), "destroy",
			 G_CALLBACK(pref_toolbar_destroy_cb), tips);

	gtk_tooltips_enable(tips);

	return tbar;
}

GtkWidget *pref_toolbar_button(GtkWidget *toolbar,
			       const gchar *stock_id, const gchar *label, gint toggle,
			       const gchar *description,
			       GCallback func, gpointer data)
{
	GtkWidget *item;

	if (toggle)
		{
		if (stock_id)
			{
			item = GTK_WIDGET(gtk_toggle_tool_button_new_from_stock(stock_id));
			}
		else
			{
			item = GTK_WIDGET(gtk_toggle_tool_button_new());
			}
		}
	else
		{
		if (stock_id)
			{
			item = GTK_WIDGET(gtk_tool_button_new_from_stock(stock_id));
			}
		else
			{
			item = GTK_WIDGET(gtk_tool_button_new(NULL, NULL));
			}
		}
	gtk_tool_button_set_use_underline(GTK_TOOL_BUTTON(item), TRUE);

	if (label) gtk_tool_button_set_label(GTK_TOOL_BUTTON(item), label);

	if (func) g_signal_connect(item, "clicked", func, data);
	gtk_container_add(GTK_CONTAINER(toolbar), item);
	gtk_widget_show(item);

	if (description)
		{
		GtkTooltips *tips;

		tips = g_object_get_data(G_OBJECT(toolbar), "tooltips");
		gtk_tool_item_set_tooltip(GTK_TOOL_ITEM(item), tips, description, NULL);
		}

	return item;
}

void pref_toolbar_button_set_icon(GtkWidget *button, GtkWidget *widget, const gchar *stock_id)
{
	if (widget)
		{
		gtk_tool_button_set_icon_widget(GTK_TOOL_BUTTON(button), widget);
		}
	else if (stock_id)
		{
		gtk_tool_button_set_stock_id(GTK_TOOL_BUTTON(button), stock_id);
		}
}

GtkWidget *pref_toolbar_spacer(GtkWidget *toolbar)
{
	GtkWidget *item;

	item = GTK_WIDGET(gtk_separator_tool_item_new());
	gtk_container_add(GTK_CONTAINER(toolbar), item);
	gtk_widget_show(item);

	return item;
}


/*
 *-----------------------------------------------------------------------------
 * date selection entry
 *-----------------------------------------------------------------------------
 */

#define DATE_SELECION_KEY "date_selection_data"


typedef struct _DateSelection DateSelection;
struct _DateSelection
{
	GtkWidget *box;

	GtkWidget *spin_d;
	GtkWidget *spin_m;
	GtkWidget *spin_y;

	GtkWidget *button;

	GtkWidget *window;
	GtkWidget *calendar;
};


static void date_selection_popup_hide(DateSelection *ds)
{
	if (!ds->window) return;

	if (GTK_WIDGET_HAS_GRAB(ds->window))
		{
		gtk_grab_remove(ds->window);
		gdk_keyboard_ungrab(GDK_CURRENT_TIME);
		gdk_pointer_ungrab(GDK_CURRENT_TIME);
		}

	gtk_widget_hide(ds->window);

	gtk_widget_destroy(ds->window);
	ds->window = NULL;
	ds->calendar = NULL;

	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(ds->button), FALSE);
}

static gint date_selection_popup_release_cb(GtkWidget *widget, GdkEventButton *event, gpointer data)
{
	DateSelection *ds = data;

	date_selection_popup_hide(ds);
	return TRUE;
}

static gint date_selection_popup_press_cb(GtkWidget *widget, GdkEventButton *event, gpointer data)
{
	DateSelection *ds = data;
	gint x, y;
	gint w, h;
	gint xr, yr;

	xr = (gint)event->x_root;
	yr = (gint)event->y_root;

	gdk_window_get_origin(ds->window->window, &x, &y);
	gdk_drawable_get_size(ds->window->window, &w, &h);

	if (xr < x || yr < y || xr > x + w || yr > y + h)
		{
		g_signal_connect(G_OBJECT(ds->window), "button_release_event",
				 G_CALLBACK(date_selection_popup_release_cb), ds);
		return TRUE;
		}

	return FALSE;
}

static void date_selection_popup_sync(DateSelection *ds)
{
	gint day, month, year;

	gtk_calendar_get_date(GTK_CALENDAR(ds->calendar), &year, &month, &day);
	date_selection_set(ds->box, day, month + 1, year);
}

static gint date_selection_popup_keypress_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
	DateSelection *ds = data;

	switch (event->keyval)
		{
		case GDK_Return:
		case GDK_KP_Enter:
		case GDK_Tab:
		case GDK_ISO_Left_Tab:
			date_selection_popup_sync(ds);
			date_selection_popup_hide(ds);
			break;
		case GDK_Escape:
			date_selection_popup_hide(ds);
			break;
		default:
			break;
		}

	return FALSE;
}

static void date_selection_day_cb(GtkWidget *widget, gpointer data)
{
	DateSelection *ds = data;

	date_selection_popup_sync(ds);
}

static void date_selection_doubleclick_cb(GtkWidget *widget, gpointer data)
{
	DateSelection *ds = data;

	date_selection_popup_hide(ds);
}

static void date_selection_popup(DateSelection *ds)
{
	gint x, y;
	gint wx, wy;
	gint day, month, year;

	if (ds->window) return;

	ds->window = gtk_window_new(GTK_WINDOW_POPUP);
	gtk_window_set_resizable(GTK_WINDOW(ds->window), FALSE);
	g_signal_connect(G_OBJECT(ds->window), "button_press_event",
			 G_CALLBACK(date_selection_popup_press_cb), ds);
	g_signal_connect(G_OBJECT(ds->window), "key_press_event",
			 G_CALLBACK(date_selection_popup_keypress_cb), ds);

	ds->calendar = gtk_calendar_new();
	gtk_container_add(GTK_CONTAINER(ds->window), ds->calendar);
	gtk_widget_show(ds->calendar);

	date_selection_get(ds->box, &day, &month, &year);
	gtk_calendar_select_month(GTK_CALENDAR(ds->calendar), month - 1, year);
	gtk_calendar_select_day(GTK_CALENDAR(ds->calendar), day);

	g_signal_connect(G_OBJECT(ds->calendar), "day_selected",
			 G_CALLBACK(date_selection_day_cb), ds);
	g_signal_connect(G_OBJECT(ds->calendar), "day_selected_double_click",
			G_CALLBACK(date_selection_doubleclick_cb), ds);

	gtk_widget_realize(ds->window);

	gdk_window_get_origin(ds->button->window, &wx, &wy);

	x = wx + ds->button->allocation.x + ds->button->allocation.width - ds->window->allocation.width;
	y = wy + ds->button->allocation.y + ds->button->allocation.height;

	if (y + ds->window->allocation.height > gdk_screen_height())
		{
		y = wy + ds->button->allocation.y - ds->window->allocation.height;
		}
	if (x < 0) x = 0;
	if (y < 0) y = 0;

	gtk_window_move(GTK_WINDOW(ds->window), x, y);
	gtk_widget_show(ds->window);

	gtk_widget_grab_focus(ds->calendar);
	gdk_pointer_grab(ds->window->window, TRUE,
			 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_MOTION_MASK,
			 NULL, NULL, GDK_CURRENT_TIME);
	gdk_keyboard_grab(ds->window->window, TRUE, GDK_CURRENT_TIME);
	gtk_grab_add(ds->window);

	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(ds->button), TRUE);
}

static void date_selection_button_cb(GtkWidget *widget, gpointer data)
{
	DateSelection *ds = data;

	if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(ds->button)) == (!ds->window))
		{
		date_selection_popup(ds);
		}
}

static void button_size_allocate_cb(GtkWidget *button, GtkAllocation *allocation, gpointer data)
{
	GtkWidget *spin = data;

	if (allocation->height > spin->requisition.height)
		{
		GtkAllocation button_allocation;

		button_allocation = button->allocation;
		button_allocation.height = spin->requisition.height;
		button_allocation.y = spin->allocation.y +
			(spin->allocation.height - spin->requisition.height) / 2;
		gtk_widget_size_allocate(button, &button_allocation);
		}
}

static void spin_increase(GtkWidget *spin, gint value)
{
	GtkRequisition req;

	gtk_widget_size_request(spin, &req);
	gtk_widget_set_size_request(spin, req.width + value, -1);
}

static void date_selection_destroy_cb(GtkWidget *widget, gpointer data)
{
	DateSelection *ds = data;

	date_selection_popup_hide(ds);

	g_free(ds);
}

GtkWidget *date_selection_new(void)
{
	DateSelection *ds;
	GtkWidget *arrow;

	ds = g_new0(DateSelection, 1);

	ds->box = gtk_hbox_new(FALSE, 2);
	g_signal_connect(G_OBJECT(ds->box), "destroy",
			 G_CALLBACK(date_selection_destroy_cb), ds);

	/* FIXME: use option menu with text format of month instead of a spin button */
	ds->spin_m = pref_spin_new(ds->box, NULL, NULL, 1, 12, 1, 0, 1, NULL, NULL);
	ds->spin_d = pref_spin_new(ds->box, NULL, NULL, 1, 31, 1, 0, 1, NULL, NULL);
	ds->spin_y = pref_spin_new(ds->box, NULL, NULL, 1900, 9999, 1, 0, 1900, NULL, NULL);
	spin_increase(ds->spin_y, 5);

	ds->button = gtk_toggle_button_new();
	g_signal_connect(G_OBJECT(ds->button), "size_allocate",
			 G_CALLBACK(button_size_allocate_cb), ds->spin_y);

	arrow = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_NONE);
	gtk_container_add(GTK_CONTAINER(ds->button), arrow);
	gtk_widget_show(arrow);

	gtk_box_pack_start(GTK_BOX(ds->box), ds->button, FALSE, FALSE, 0);
	g_signal_connect(G_OBJECT(ds->button), "clicked",
			 G_CALLBACK(date_selection_button_cb), ds);
	gtk_widget_show(ds->button);