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// 8 june 2016
#include "uipriv_unix.h"
struct formChild {
uiControl *c;
int stretchy;
GtkWidget *label;
gboolean oldhexpand;
GtkAlign oldhalign;
gboolean oldvexpand;
GtkAlign oldvalign;
GBinding *labelBinding;
};
struct uiForm {
uiUnixControl c;
GtkWidget *widget;
GtkContainer *container;
GtkGrid *grid;
GArray *children;
int padded;
GtkSizeGroup *stretchygroup; // ensures all stretchy controls have the same size
};
uiUnixControlAllDefaultsExceptDestroy(uiForm)
#define ctrl(f, i) &g_array_index(f->children, struct formChild, i)
static void uiFormDestroy(uiControl *c)
{
uiForm *f = uiForm(c);
struct formChild *fc;
guint i;
// kill the size group
g_object_unref(f->stretchygroup);
// free all controls
for (i = 0; i < f->children->len; i++) {
fc = ctrl(f, i);
uiControlSetParent(fc->c, NULL);
uiUnixControlSetContainer(uiUnixControl(fc->c), f->container, TRUE);
uiControlDestroy(fc->c);
gtk_widget_destroy(fc->label);
}
g_array_free(f->children, TRUE);
// and then ourselves
g_object_unref(f->widget);
uiFreeControl(uiControl(f));
}
void uiFormAppend(uiForm *f, const char *label, uiControl *c, int stretchy)
{
struct formChild fc;
GtkWidget *widget;
guint row;
fc.c = c;
widget = GTK_WIDGET(uiControlHandle(fc.c));
fc.stretchy = stretchy;
fc.oldhexpand = gtk_widget_get_hexpand(widget);
fc.oldhalign = gtk_widget_get_halign(widget);
fc.oldvexpand = gtk_widget_get_vexpand(widget);
fc.oldvalign = gtk_widget_get_valign(widget);
if (stretchy) {
gtk_widget_set_vexpand(widget, TRUE);
gtk_widget_set_valign(widget, GTK_ALIGN_FILL);
gtk_size_group_add_widget(f->stretchygroup, widget);
} else
gtk_widget_set_vexpand(widget, FALSE);
// and make them fill horizontally
gtk_widget_set_hexpand(widget, TRUE);
gtk_widget_set_halign(widget, GTK_ALIGN_FILL);
fc.label = gtk_label_new(label);
gtk_widget_set_hexpand(fc.label, FALSE);
gtk_widget_set_halign(fc.label, GTK_ALIGN_END);
gtk_widget_set_vexpand(fc.label, FALSE);
if (GTK_IS_SCROLLED_WINDOW(widget))
gtk_widget_set_valign(fc.label, GTK_ALIGN_START);
else
gtk_widget_set_valign(fc.label, GTK_ALIGN_CENTER);
gtk_style_context_add_class(gtk_widget_get_style_context(fc.label), "dim-label");
row = f->children->len;
gtk_grid_attach(f->grid, fc.label,
0, row,
1, 1);
// and make them share visibility so if the control is hidden, so is its label
fc.labelBinding = g_object_bind_property(GTK_WIDGET(uiControlHandle(fc.c)), "visible",
fc.label, "visible",
G_BINDING_SYNC_CREATE);
uiControlSetParent(fc.c, uiControl(f));
uiUnixControlSetContainer(uiUnixControl(fc.c), f->container, FALSE);
g_array_append_val(f->children, fc);
// move the widget to the correct place
gtk_container_child_set(f->container, widget,
"left-attach", 1,
"top-attach", row,
NULL);
}
void uiFormDelete(uiForm *f, int index)
{
struct formChild *fc;
GtkWidget *widget;
fc = ctrl(f, index);
widget = GTK_WIDGET(uiControlHandle(fc->c));
gtk_widget_destroy(fc->label);
uiControlSetParent(fc->c, NULL);
uiUnixControlSetContainer(uiUnixControl(fc->c), f->container, TRUE);
if (fc->stretchy)
gtk_size_group_remove_widget(f->stretchygroup, widget);
gtk_widget_set_hexpand(widget, fc->oldhexpand);
gtk_widget_set_halign(widget, fc->oldhalign);
gtk_widget_set_vexpand(widget, fc->oldvexpand);
gtk_widget_set_valign(widget, fc->oldvalign);
g_array_remove_index(f->children, index);
}
int uiFormPadded(uiForm *f)
{
return f->padded;
}
void uiFormSetPadded(uiForm *f, int padded)
{
f->padded = padded;
if (f->padded) {
gtk_grid_set_row_spacing(f->grid, gtkYPadding);
gtk_grid_set_column_spacing(f->grid, gtkXPadding);
} else {
gtk_grid_set_row_spacing(f->grid, 0);
gtk_grid_set_column_spacing(f->grid, 0);
}
}
uiForm *uiNewForm(void)
{
uiForm *f;
uiUnixNewControl(uiForm, f);
f->widget = gtk_grid_new();
f->container = GTK_CONTAINER(f->widget);
f->grid = GTK_GRID(f->widget);
f->stretchygroup = gtk_size_group_new(GTK_SIZE_GROUP_VERTICAL);
f->children = g_array_new(FALSE, TRUE, sizeof (struct formChild));
return f;
}
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