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// 7 april 2015
#include "uipriv_unix.h"
typedef struct singleWidget singleWidget;
struct singleWidget {
GtkWidget *widget;
GtkWidget *scrolledWindow;
GtkWidget *immediate; // the widget that is added to the parent container; either widget or scrolledWindow
uiParent *parent;
gboolean userHid;
gboolean containerHid;
gboolean userDisabled;
gboolean containerDisabled;
};
static void singleDestroy(uiControl *c)
{
singleWidget *s = (singleWidget *) (c->internal);
gtk_widget_destroy(s->immediate);
}
static uintptr_t singleHandle(uiControl *c)
{
singleWidget *s = (singleWidget *) (c->internal);
return (uintptr_t) (s->widget);
}
static void singleSetParent(uiControl *c, uiParent *parent)
{
singleWidget *s = (singleWidget *) (c->internal);
uiParent *oldparent;
oldparent = s->parent;
s->parent = parent;
if (oldparent != NULL) {
gtk_container_remove(GTK_CONTAINER(uiParentHandle(oldparent)), s->immediate);
uiParentUpdate(oldparent);
}
if (s->parent != NULL) {
gtk_container_add(GTK_CONTAINER(uiParentHandle(s->parent)), s->immediate);
uiParentUpdate(s->parent);
}
}
static void singlePreferredSize(uiControl *c, uiSizing *d, intmax_t *width, intmax_t *height)
{
singleWidget *s = (singleWidget *) (c->internal);
GtkRequisition natural;
// use the natural size as the minimum size is an *absolute* minimum
// for example, if a label has ellipsizing on, it can be the width of the ellipses, not the text
// there is a warning about height-for-width sizing, but in my tests this isn't an issue
gtk_widget_get_preferred_size(s->widget, NULL, &natural);
*width = natural.width;
*height = natural.height;
}
static void singleResize(uiControl *c, intmax_t x, intmax_t y, intmax_t width, intmax_t height, uiSizing *d)
{
singleWidget *s = (singleWidget *) (c->internal);
GtkAllocation a;
a.x = x;
a.y = y;
a.width = width;
a.height = height;
gtk_widget_size_allocate(s->immediate, &a);
}
static int singleVisible(uiControl *c)
{
singleWidget *s = (singleWidget *) (c->internal);
if (s->userHid)
return 0;
return 1;
}
static void singleShow(uiControl *c)
{
singleWidget *s = (singleWidget *) (c->internal);
s->userHid = FALSE;
if (!s->containerHid) {
gtk_widget_show_all(s->immediate);
if (s->parent != NULL)
uiParentUpdate(s->parent);
}
}
static void singleHide(uiControl *c)
{
singleWidget *s = (singleWidget *) (c->internal);
s->userHid = TRUE;
gtk_widget_hide(s->immediate);
if (s->parent != NULL)
uiParentUpdate(s->parent);
}
static void singleContainerShow(uiControl *c)
{
singleWidget *s = (singleWidget *) (c->internal);
s->containerHid = FALSE;
if (!s->userHid) {
gtk_widget_show_all(s->immediate);
if (s->parent != NULL)
uiParentUpdate(s->parent);
}
}
static void singleContainerHide(uiControl *c)
{
singleWidget *s = (singleWidget *) (c->internal);
s->containerHid = TRUE;
gtk_widget_hide(s->immediate);
if (s->parent != NULL)
uiParentUpdate(s->parent);
}
static void singleEnable(uiControl *c)
{
singleWidget *s = (singleWidget *) (c->internal);
s->userDisabled = FALSE;
if (!s->containerDisabled)
gtk_widget_set_sensitive(s->immediate, TRUE);
}
static void singleDisable(uiControl *c)
{
singleWidget *s = (singleWidget *) (c->internal);
s->userDisabled = TRUE;
gtk_widget_set_sensitive(s->immediate, FALSE);
}
static void singleContainerEnable(uiControl *c)
{
singleWidget *s = (singleWidget *) (c->internal);
s->containerDisabled = FALSE;
if (!s->userDisabled)
gtk_widget_set_sensitive(s->immediate, TRUE);
}
static void singleContainerDisable(uiControl *c)
{
singleWidget *s = (singleWidget *) (c->internal);
s->containerDisabled = TRUE;
gtk_widget_set_sensitive(s->immediate, FALSE);
}
static void onDestroy(GtkWidget *widget, gpointer data)
{
uiControl *c = (uiControl *) data;
singleWidget *s = (singleWidget *) (c->internal);
uiFree(s);
uiFree(c);
}
uiControl *uiUnixNewControl(GType type, gboolean inScrolledWindow, gboolean scrolledWindowHasBorder, const char *firstProperty, ...)
{
uiControl *c;
singleWidget *s;
va_list ap;
s = uiNew(singleWidget);
va_start(ap, firstProperty);
s->widget = GTK_WIDGET(g_object_new_valist(type, firstProperty, ap));
va_end(ap);
s->immediate = s->widget;
if (inScrolledWindow) {
s->scrolledWindow = gtk_scrolled_window_new(NULL, NULL);
if (!GTK_IS_SCROLLABLE(s->widget))
gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(s->scrolledWindow), s->widget);
else
gtk_container_add(GTK_CONTAINER(s->scrolledWindow), s->widget);
if (scrolledWindowHasBorder)
gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(s->scrolledWindow), GTK_SHADOW_IN);
s->immediate = s->scrolledWindow;
}
// we need to keep an extra reference on the immediate widget
// this is so uiControlDestroy() can work regardless of when it is called and who calls it
// without this:
// - end user call works (only one ref)
// - call in uiContainer destructor fails (uiContainer ref freed)
// with this:
// - end user call works (shoudn't be in any container)
// - call in uiContainer works (both refs freed)
// this also ensures singleRemoveParent() works properly
g_object_ref_sink(s->immediate);
c = uiNew(uiControl);
// assign s later; we still need it for one more thing
c->destroy = singleDestroy;
c->handle = singleHandle;
c->setParent = singleSetParent;
c->preferredSize = singlePreferredSize;
c->resize = singleResize;
c->visible = singleVisible;
c->show = singleShow;
c->hide = singleHide;
c->containerShow = singleContainerShow;
c->containerHide = singleContainerHide;
c->enable = singleEnable;
c->disable = singleDisable;
c->containerEnable = singleContainerEnable;
c->containerDisable = singleContainerDisable;
// and let's free everything with the immediate widget
g_signal_connect(s->immediate, "destroy", G_CALLBACK(onDestroy), c);
// finally, call gtk_widget_show_all() here to set the initial visibility of the widget
gtk_widget_show_all(s->immediate);
c->internal = s;
return c;
}
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