122 lines
2.7 KiB
C
122 lines
2.7 KiB
C
// 11 june 2015
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#include "uipriv_unix.h"
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// on GTK+ a uiRadioButtons is a GtkBox with each of the GtkRadioButtons as children
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struct uiRadioButtons {
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uiUnixControl c;
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GtkWidget *widget;
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GtkContainer *container;
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GtkBox *box;
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GPtrArray *buttons;
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void (*onSelected)(uiRadioButtons *, void *);
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void *onSelectedData;
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gboolean changing;
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};
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uiUnixControlAllDefaultsExceptDestroy(uiRadioButtons)
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static void defaultOnSelected(uiRadioButtons *r, void *data)
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{
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// do nothing
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}
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static void onToggled(GtkToggleButton *tb, gpointer data)
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{
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uiRadioButtons *r = uiRadioButtons(data);
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// only care if a button is selected
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if (!gtk_toggle_button_get_active(tb))
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return;
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// ignore programmatic changes
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if (r->changing)
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return;
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(*(r->onSelected))(r, r->onSelectedData);
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}
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static void uiRadioButtonsDestroy(uiControl *c)
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{
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uiRadioButtons *r = uiRadioButtons(c);
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GtkWidget *b;
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while (r->buttons->len != 0) {
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b = GTK_WIDGET(g_ptr_array_remove_index(r->buttons, 0));
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gtk_widget_destroy(b);
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}
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g_ptr_array_free(r->buttons, TRUE);
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// and free ourselves
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g_object_unref(r->widget);
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uiFreeControl(uiControl(r));
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}
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void uiRadioButtonsAppend(uiRadioButtons *r, const char *text)
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{
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GtkWidget *rb;
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GtkRadioButton *previous;
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previous = NULL;
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if (r->buttons->len > 0)
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previous = GTK_RADIO_BUTTON(g_ptr_array_index(r->buttons, 0));
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rb = gtk_radio_button_new_with_label_from_widget(previous, text);
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g_signal_connect(rb, "toggled", G_CALLBACK(onToggled), r);
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gtk_container_add(r->container, rb);
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g_ptr_array_add(r->buttons, rb);
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gtk_widget_show(rb);
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}
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int uiRadioButtonsSelected(uiRadioButtons *r)
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{
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GtkToggleButton *tb;
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guint i;
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for (i = 0; i < r->buttons->len; i++) {
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tb = GTK_TOGGLE_BUTTON(g_ptr_array_index(r->buttons, i));
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if (gtk_toggle_button_get_active(tb))
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return i;
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}
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return -1;
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}
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void uiRadioButtonsSetSelected(uiRadioButtons *r, int n)
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{
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GtkToggleButton *tb;
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gboolean active;
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active = TRUE;
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// TODO this doesn't work
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if (n == -1) {
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n = uiRadioButtonsSelected(r);
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if (n == -1) // no selection; keep it that way
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return;
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active = FALSE;
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}
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tb = GTK_TOGGLE_BUTTON(g_ptr_array_index(r->buttons, n));
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// this is easier than remembering all the signals
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r->changing = TRUE;
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gtk_toggle_button_set_active(tb, active);
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r->changing = FALSE;
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}
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void uiRadioButtonsOnSelected(uiRadioButtons *r, void (*f)(uiRadioButtons *, void *), void *data)
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{
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r->onSelected = f;
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r->onSelectedData = data;
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}
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uiRadioButtons *uiNewRadioButtons(void)
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{
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uiRadioButtons *r;
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uiUnixNewControl(uiRadioButtons, r);
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r->widget = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
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r->container = GTK_CONTAINER(r->widget);
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r->box = GTK_BOX(r->widget);
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r->buttons = g_ptr_array_new();
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uiRadioButtonsOnSelected(r, defaultOnSelected, NULL);
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return r;
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}
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