// 6 april 2015
#include "uipriv_unix.h"

struct window {
	uiWindow w;
	GtkWidget *widget;
	uiParent *content;
	int (*onClosing)(uiWindow *, void *);
	void *onClosingData;
	int margined;
};

static gboolean onClosing(GtkWidget *win, GdkEvent *e, gpointer data)
{
	struct window *w = (struct window *) data;

	// return exact values just in case
	if ((*(w->onClosing))(uiWindow(w), w->onClosingData))
		return FALSE;
	return TRUE;
}

static int defaultOnClosing(uiWindow *w, void *data)
{
	return 1;
}

static void onDestroy(GtkWidget *widget, gpointer data)
{
	struct window *w = (struct window *) data;

	uiFree(w);
}

static void windowDestroy(uiWindow *ww)
{
	struct window *w = (struct window *) ww;

	gtk_widget_destroy(w->widget);
}

static uintptr_t handle(uiWindow *ww)
{
	struct window *w = (struct window *) ww;

	return (uintptr_t) (w->widget);
}

static char *getTitle(uiWindow *ww)
{
	struct window *w = (struct window *) ww;

	return g_strdup(gtk_window_get_title(GTK_WINDOW(w->widget)));
}

static void setTitle(uiWindow *ww, const char *title)
{
	struct window *w = (struct window *) ww;

	gtk_window_set_title(GTK_WINDOW(w->widget), title);
}

static void show(uiWindow *ww)
{
	struct window *w = (struct window *) ww;

	// don't use gtk_widget_show_all(); that will override user hidden settings
	gtk_widget_show(w->widget);
}

static void hide(uiWindow *ww)
{
	struct window *w = (struct window *) ww;
	gtk_widget_hide(w->widget);
}

static void setOnClosing(uiWindow *ww, int (*f)(uiWindow *, void *), void *data)
{
	struct window *w = (struct window *) ww;

	w->onClosing = f;
	w->onClosingData = data;
}

static void setChild(uiWindow *ww, uiControl *c)
{
	struct window *w = (struct window *) ww;

	uiParentSetChild(w->content, c);
	uiParentUpdate(w->content);
}

static int margined(uiWindow *ww)
{
	struct window *w = (struct window *) ww;

	return w->margined;
}

static void setMargined(uiWindow *ww, int margined)
{
	struct window *w = (struct window *) ww;

	w->margined = margined;
	if (w->margined)
		uiParentSetMargins(w->content, gtkXMargin, gtkYMargin, gtkXMargin, gtkYMargin);
	else
		uiParentSetMargins(w->content, 0, 0, 0, 0);
	uiParentUpdate(w->content);
}

uiWindow *uiNewWindow(const char *title, int width, int height)
{
	struct window *w;

	w = uiNew(struct window);
	w->widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	gtk_window_set_title(GTK_WINDOW(w->widget), title);
	gtk_window_resize(GTK_WINDOW(w->widget), width, height);
	g_signal_connect(w->widget, "delete-event", G_CALLBACK(onClosing), w);
	g_signal_connect(w->widget, "destroy", G_CALLBACK(onDestroy), w);
	w->content = uiNewParent((uintptr_t) (w->widget));
	w->onClosing = defaultOnClosing;

	uiWindow(w)->Destroy = windowDestroy;
	uiWindow(w)->Handle = handle;
	uiWindow(w)->Title = getTitle;
	uiWindow(w)->SetTitle = setTitle;
	uiWindow(w)->Show = show;
	uiWindow(w)->Hide = hide;
	uiWindow(w)->OnClosing = setOnClosing;
	uiWindow(w)->SetChild = setChild;
	uiWindow(w)->Margined = margined;
	uiWindow(w)->SetMargined = setMargined;

	return uiWindow(w);
}