libui/_abort/windowevents/unix_window.c

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struct uiWindow {
// void *onClosingData;
void (*onPositionChanged)(uiWindow *, void *);
void *onPositionChangedData;
gboolean changingPosition;
// void (*onContentSizeChanged)(uiWindow *, void *);
};
// static gboolean onClosing(GtkWidget *win, GdkEvent *e, gpointer data)
static gboolean onConfigure(GtkWidget *win, GdkEvent *e, gpointer data)
{
uiWindow *w = uiWindow(data);
// there doesn't seem to be a way to determine if only moving or only resizing is happening :/
if (w->changingPosition)
w->changingPosition = FALSE;
else
(*(w->onPositionChanged))(w, w->onPositionChangedData);
// always continue handling
return FALSE;
}
// static void onSizeAllocate(GtkWidget *widget, GdkRectangle *allocation, gpointer data)
// static int defaultOnClosing(uiWindow *w, void *data)
static void defaultOnPositionContentSizeChanged(uiWindow *w, void *data)
{
// do nothing
}
// static void uiWindowDestroy(uiControl *c)
// void uiWindowSetTitle(uiWindow *w, const char *title)
// TODO allow specifying either as NULL on all platforms
void uiWindowPosition(uiWindow *w, int *x, int *y)
{
gint rx, ry;
gtk_window_get_position(w->window, &rx, &ry);
*x = rx;
*y = ry;
}
void uiWindowSetPosition(uiWindow *w, int x, int y)
{
w->changingPosition = TRUE;
gtk_window_move(w->window, x, y);
// gtk_window_move() is asynchronous
// we need to wait for a configure-event
// thanks to hergertme in irc.gimp.net/#gtk+
while (w->changingPosition)
if (!uiMainStep(1))
break; // stop early if uiQuit() called
}
void uiWindowCenter(uiWindow *w)
{
gint x, y;
GtkAllocation winalloc;
GdkWindow *gdkwin;
GdkScreen *screen;
GdkRectangle workarea;
gtk_widget_get_allocation(w->widget, &winalloc);
gdkwin = gtk_widget_get_window(w->widget);
screen = gdk_window_get_screen(gdkwin);
gdk_screen_get_monitor_workarea(screen,
gdk_screen_get_monitor_at_window(screen, gdkwin),
&workarea);
x = (workarea.width - winalloc.width) / 2;
y = (workarea.height - winalloc.height) / 2;
// TODO move up slightly? see what Mutter or GNOME Shell or GNOME Terminal do(es)?
uiWindowSetPosition(w, x, y);
}
// TODO this and size changed get set during uiWindowDestroy
void uiWindowOnPositionChanged(uiWindow *w, void (*f)(uiWindow *, void *), void *data)
{
w->onPositionChanged = f;
w->onPositionChangedData = data;
}
// void uiWindowContentSize(uiWindow *w, int *width, int *height)
uiWindow *uiNewWindow(const char *title, int width, int height, int hasMenubar)
{
// g_signal_connect(w->widget, "delete-event", G_CALLBACK(onClosing), w);
g_signal_connect(w->widget, "configure-event", G_CALLBACK(onConfigure), w);
// g_signal_connect(w->childHolderWidget, "size-allocate", G_CALLBACK(onSizeAllocate), w);
// uiWindowOnClosing(w, defaultOnClosing, NULL);
uiWindowOnPositionChanged(w, defaultOnPositionContentSizeChanged, NULL);
// uiWindowOnContentSizeChanged(w, defaultOnPositionContentSizeChanged, NULL);
}