266 lines
7.5 KiB
C
266 lines
7.5 KiB
C
// 28 april 2015
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#include "uipriv_unix.h"
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#define containerWidgetType (containerWidget_get_type())
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#define containerWidget(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), containerWidgetType, containerWidget))
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#define IscontainerWidget(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), containerWidgetType))
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#define containerWidgetClass(class) (G_TYPE_CHECK_CLASS_CAST((class), containerWidgetType, containerWidgetClass))
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#define IscontainerWidgetClass(class) (G_TYPE_CHECK_CLASS_TYPE((class), containerWidget))
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#define GetcontainerWidgetClass(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), containerWidgetType, containerWidgetClass))
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typedef struct containerWidget containerWidget;
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typedef struct containerWidgetClass containerWidgetClass;
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struct containerWidget {
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GtkContainer parent_instance;
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uiContainer *c;
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GPtrArray *widgets; // for for_each()/for_all()
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uiContainer *parent;
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int hidden;
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};
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struct containerWidgetClass {
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GtkContainerClass parent_class;
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};
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G_DEFINE_TYPE(containerWidget, containerWidget, GTK_TYPE_CONTAINER)
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static void containerWidget_init(containerWidget *c)
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{
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c->widgets = g_ptr_array_new();
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gtk_widget_set_has_window(GTK_WIDGET(c), FALSE);
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}
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static void containerWidget_dispose(GObject *obj)
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{
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G_OBJECT_CLASS(containerWidget_parent_class)->dispose(obj);
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}
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static void containerWidget_finalize(GObject *obj)
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{
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containerWidget *c = containerWidget(obj);
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g_ptr_array_unref(c->widgets);
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G_OBJECT_CLASS(containerWidget_parent_class)->finalize(obj);
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}
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static void containerWidget_add(GtkContainer *container, GtkWidget *widget)
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{
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containerWidget *c = containerWidget(container);
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gtk_widget_set_parent(widget, GTK_WIDGET(c));
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g_ptr_array_add(c->widgets, widget);
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}
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static void containerWidget_remove(GtkContainer *container, GtkWidget *widget)
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{
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containerWidget *c = containerWidget(container);
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gtk_widget_unparent(widget);
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if (g_ptr_array_remove(c->widgets, widget) == FALSE)
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complain("widget %p not found in containerWidget gtk_container_remove()", widget);
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}
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#define gtkXPadding 12
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#define gtkYPadding 6
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static void containerWidget_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
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{
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containerWidget *c = containerWidget(widget);
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uiSizing d;
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gtk_widget_set_allocation(GTK_WIDGET(c), allocation);
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d.XPadding = gtkXPadding;
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d.YPadding = gtkYPadding;
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uiContainerResizeChildren(c->c, allocation->x, allocation->y, allocation->width, allocation->height, &d);
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}
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static void containerWidget_get_preferred_height(GtkWidget *widget, gint *minimum, gint *natural)
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{
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containerWidget *c = containerWidget(widget);
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intmax_t width, height;
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uiSizing d;
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d.XPadding = gtkXPadding;
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d.YPadding = gtkYPadding;
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uiControlPreferredSize(uiControl(c->c), &d, &width, &height);
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*minimum = 0; // allow arbitrary resize
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*natural = height;
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}
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static void containerWidget_get_preferred_width(GtkWidget *widget, gint *minimum, gint *natural)
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{
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containerWidget *c = containerWidget(widget);
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intmax_t width, height;
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uiSizing d;
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d.XPadding = gtkXPadding;
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d.YPadding = gtkYPadding;
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uiControlPreferredSize(uiControl(c->c), &d, &width, &height);
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*minimum = 0; // allow arbitrary resize
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*natural = width;
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}
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struct forall {
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GtkCallback callback;
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gpointer data;
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};
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static void doforall(gpointer obj, gpointer data)
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{
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struct forall *s = (struct forall *) data;
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(*(s->callback))(GTK_WIDGET(obj), s->data);
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}
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static void containerWidget_forall(GtkContainer *container, gboolean includeInternals, GtkCallback callback, gpointer data)
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{
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containerWidget *c = containerWidget(container);
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struct forall s;
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s.callback = callback;
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s.data = data;
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g_ptr_array_foreach(c->widgets, doforall, &s);
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}
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static void containerWidget_class_init(containerWidgetClass *class)
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{
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G_OBJECT_CLASS(class)->dispose = containerWidget_dispose;
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G_OBJECT_CLASS(class)->finalize = containerWidget_finalize;
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GTK_WIDGET_CLASS(class)->size_allocate = containerWidget_size_allocate;
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GTK_WIDGET_CLASS(class)->get_preferred_height = containerWidget_get_preferred_height;
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GTK_WIDGET_CLASS(class)->get_preferred_width = containerWidget_get_preferred_width;
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GTK_CONTAINER_CLASS(class)->add = containerWidget_add;
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GTK_CONTAINER_CLASS(class)->remove = containerWidget_remove;
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GTK_CONTAINER_CLASS(class)->forall = containerWidget_forall;
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}
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// subclasses override this and call back here when all children are destroyed
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static void containerDestroy(uiControl *cc)
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{
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containerWidget *c = containerWidget(cc->Internal);
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if (c->parent != NULL)
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complain("attempt to destroy uiContainer %p while it has a parent", cc);
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g_object_unref(c); // release our initial reference, which destroys the widget
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}
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static uintptr_t containerHandle(uiControl *cc)
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{
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containerWidget *c = containerWidget(cc->Internal);
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return (uintptr_t) c;
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}
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static void containerSetParent(uiControl *cc, uiContainer *parent)
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{
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containerWidget *c = containerWidget(cc->Internal);
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uiContainer *oldparent;
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GtkContainer *oldcontainer;
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GtkContainer *newcontainer;
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oldparent = c->parent;
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c->parent = parent;
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if (oldparent != NULL) {
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oldcontainer = GTK_CONTAINER(uiControlHandle(uiControl(oldparent)));
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gtk_container_remove(oldcontainer, GTK_WIDGET(c));
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}
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if (c->parent != NULL) {
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newcontainer = GTK_CONTAINER(uiControlHandle(uiControl(c->parent)));
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gtk_container_add(newcontainer, GTK_WIDGET(c));
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}
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if (oldparent != NULL)
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uiContainerUpdate(oldparent);
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if (c->parent != NULL)
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uiContainerUpdate(c->parent);
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}
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static void containerResize(uiControl *cc, intmax_t x, intmax_t y, intmax_t width, intmax_t height, uiSizing *d)
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{
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containerWidget *c = containerWidget(cc->Internal);
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GtkAllocation a;
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a.x = x;
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a.y = y;
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a.width = width;
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a.height = height;
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gtk_widget_size_allocate(GTK_WIDGET(c), &a);
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}
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static int containerVisible(uiControl *cc)
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{
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containerWidget *c = containerWidget(cc->Internal);
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return !c->hidden;
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}
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static void containerShow(uiControl *cc)
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{
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containerWidget *c = containerWidget(cc->Internal);
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// don't use gtk_widget_show_all(); that'll show every widget, including ones hidden by the user
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gtk_widget_show(GTK_WIDGET(c));
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// hidden controls don't count in boxes and grids
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c->hidden = 0;
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if (c->parent != NULL)
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uiContainerUpdate(c->parent);
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}
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static void containerHide(uiControl *cc)
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{
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containerWidget *c = containerWidget(cc->Internal);
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gtk_widget_hide(GTK_WIDGET(c));
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c->hidden = 1;
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if (c->parent != NULL)
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uiContainerUpdate(c->parent);
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}
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static void containerEnable(uiControl *cc)
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{
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containerWidget *c = containerWidget(cc->Internal);
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gtk_widget_set_sensitive(GTK_WIDGET(c), TRUE);
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}
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static void containerDisable(uiControl *cc)
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{
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containerWidget *c = containerWidget(cc->Internal);
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gtk_widget_set_sensitive(GTK_WIDGET(c), FALSE);
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}
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static void containerUpdate(uiContainer *cc)
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{
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containerWidget *c = containerWidget(uiControl(cc)->Internal);
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gtk_widget_queue_resize(GTK_WIDGET(c));
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}
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void uiMakeContainer(uiContainer *cc)
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{
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containerWidget *c;
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c = containerWidget(g_object_new(containerWidgetType, NULL));
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c->c = cc;
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// keep a reference to our container so it stays alive when reparented
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g_object_ref_sink(c);
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// and make it visible
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gtk_widget_show_all(GTK_WIDGET(c));
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uiControl(cc)->Internal = c;
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uiControl(cc)->Destroy = containerDestroy;
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uiControl(cc)->Handle = containerHandle;
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uiControl(cc)->SetParent = containerSetParent;
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// PreferredSize() is provided by subclasses
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uiControl(cc)->Resize = containerResize;
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uiControl(cc)->Visible = containerVisible;
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uiControl(cc)->Show = containerShow;
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uiControl(cc)->Hide = containerHide;
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uiControl(cc)->Enable = containerEnable;
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uiControl(cc)->Disable = containerDisable;
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// ResizeChildren() is provided by subclasses
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uiContainer(cc)->Update = containerUpdate;
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}
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