Finished the implementation of GTK+ uiButton and implemented a few fixes and added some TODOs.

redo/control.c

@@ -45,8 +45,9 @@ static void controlBaseSetParent(uiControl *c, uiControl *parent)
 		complain("attempt to reparent uiControl %p (has parent %p, attempt to give parent %p)", c, cb->parent, parent);
 	if (parent == NULL && cb->parent == NULL)
 		complain("attempt to double unparent uiControl %p", c);
-	cb->parent = parent;
+	// this must come first; GTK+ CommitSetParent() needs the old parent
 	uiControlCommitSetParent(c, parent);
+	cb->parent = parent;
 	// for situations such as where the old parent was disabled but the new one is not, etc.
 	uiControlUpdateState(c);
 }

redo/unix/box.c

@@ -1,6 +1,9 @@
 // 7 april 2015
 #include "uipriv_unix.h"
 
+// TODO
+// - the move the label box on GTK+ is not sized halfway, or the label below it is not; one of the two
+
 struct box {
 	uiBox b;
 	GtkWidget *widget;

redo/unix/button.c

@@ -11,6 +11,13 @@ struct button {
 
 uiDefineControlType(uiButton, uiTypeButton, struct button)
 
+static void onClicked(GtkButton *button, gpointer data)
+{
+	struct button *b = (struct button *) data;
+
+	(*(b->onClicked))(uiButton(b), b->onClickedData);
+}
+
 static uintptr_t buttonHandle(uiControl *c)
 {
 	struct button *b = (struct button *) c;
@@ -27,14 +34,14 @@ static char *buttonText(uiButton *bb)
 {
 	struct button *b = (struct button *) bb;
 
-	return PUT_CODE_HERE;
+	return uiUnixStrdupText(gtk_button_get_label(b->button));
 }
 
 static void buttonSetText(uiButton *bb, const char *text)
 {
 	struct button *b = (struct button *) bb;
 
-	PUT_CODE_HERE;
+	gtk_button_set_label(b->button, text);
 	// changing the text might necessitate a change in the button's size
 	uiControlQueueResize(uiControl(b));
 }
@@ -57,6 +64,7 @@ uiButton *uiNewButton(const char *text)
 	b->button = GTK_BUTTON(b->widget);
 	uiUnixMakeSingleWidgetControl(uiControl(b), b->widget);
 
+	g_signal_connect(b->widget, "clicked", G_CALLBACK(onClicked), b);
 	b->onClicked = defaultOnClicked;
 
 	uiControl(b)->Handle = buttonHandle;

unix/button.c

@@ -16,52 +16,7 @@ static void onClicked(GtkButton *button, gpointer data)
 	(*(b->onClicked))(uiButton(b), b->onClickedData);
 }
 
-static void defaultOnClicked(uiButton *b, void *data)
-{
-	// do nothing
-}
 
-static void onDestroy(void *data)
-{
-	struct button *b = (struct button *) data;
 
-	uiFree(b);
-}
 
-static char *buttonText(uiButton *bb)
-{
-	struct button *b = (struct button *) bb;
 
-	return uiUnixStrdupText(gtk_button_get_label(b->button));
-}
-
-static void buttonSetText(uiButton *bb, const char *text)
-{
-	struct button *b = (struct button *) bb;
-
-	gtk_button_set_label(b->button, text);
-}
-
-static void buttonOnClicked(uiButton *bb, void (*f)(uiButton *, void *), void *data)
-{
-	struct button *b = (struct button *) bb;
-
-	b->onClicked = f;
-	b->onClickedData = data;
-}
-
-uiButton *uiNewButton(const char *text)
-{
-	struct button *b;
-
-	b = uiNew(struct button);
-
-	g_signal_connect(b->widget, "clicked", G_CALLBACK(onClicked), b);
-	b->onClicked = defaultOnClicked;
-
-	uiButton(b)->Text = buttonText;
-	uiButton(b)->SetText = buttonSetText;
-	uiButton(b)->OnClicked = buttonOnClicked;
-
-	return uiButton(b);
-}