1 files changed, 212 insertions, 0 deletions
diff --git a/redo/basicctrls_unix.go b/redo/basicctrls_unix.go
new file mode 100644
index 0000000..67d844b
--- /dev/null
+++ b/redo/basicctrls_unix.go
@@ -0,0 +1,212 @@
+// +build !windows,!darwin
+
+// 7 july 2014
+
+package ui
+
+import (
+	"unsafe"
+)
+
+// #include "gtk_unix.h"
+// extern void buttonClicked(GtkButton *, gpointer);
+// extern void checkboxToggled(GtkToggleButton *, gpointer);
+import "C"
+
+// TODOs:
+// - standalone label on its own: should it be centered or not?
+
+type widgetbase struct {
+	widget	*C.GtkWidget
+}
+
+func newWidget(w *C.GtkWidget) *widgetbase {
+	return &widgetbase{
+		widget:	w,
+	}
+}
+
+// these few methods are embedded by all the various Controls since they all will do the same thing
+
+type controlParent struct {
+	c	*C.GtkContainer
+}
+
+func (w *widgetbase) setParent(c *controlParent) {
+	C.gtk_container_add(c.c, w.widget)
+	// make sure the new widget is shown
+	C.gtk_widget_show_all(w.widget)
+}
+
+func (w *widgetbase) containerShow() {
+	C.gtk_widget_show_all(w.widget)
+}
+
+func (w *widgetbase) containerHide() {
+	C.gtk_widget_hide(w.widget)
+}
+
+type button struct {
+	*widgetbase
+	button		*C.GtkButton
+	clicked		*event
+}
+
+// shared code for setting up buttons, check boxes, etc.
+func finishNewButton(widget *C.GtkWidget, event string, handler unsafe.Pointer) *button {
+	b := &button{
+		widgetbase:	newWidget(widget),
+		button:		(*C.GtkButton)(unsafe.Pointer(widget)),
+		clicked:		newEvent(),
+	}
+	g_signal_connect(
+		C.gpointer(unsafe.Pointer(b.button)),
+		event,
+		C.GCallback(handler),
+		C.gpointer(unsafe.Pointer(b)))
+	return b
+}
+
+func newButton(text string) *button {
+	ctext := togstr(text)
+	defer freegstr(ctext)
+	widget := C.gtk_button_new_with_label(ctext)
+	return finishNewButton(widget, "clicked", C.buttonClicked)
+}
+
+func (b *button) OnClicked(e func()) {
+	b.clicked.set(e)
+}
+
+//export buttonClicked
+func buttonClicked(bwid *C.GtkButton, data C.gpointer) {
+	b := (*button)(unsafe.Pointer(data))
+	b.clicked.fire()
+	println("button clicked")
+}
+
+func (b *button) Text() string {
+	return fromgstr(C.gtk_button_get_label(b.button))
+}
+
+func (b *button) SetText(text string) {
+	ctext := togstr(text)
+	defer freegstr(ctext)
+	C.gtk_button_set_label(b.button, ctext)
+}
+
+type checkbox struct {
+	// embed button so its methods and events carry over
+	*button
+	toggle		*C.GtkToggleButton
+	checkbox		*C.GtkCheckButton
+}
+
+func newCheckbox(text string) *checkbox {
+	ctext := togstr(text)
+	defer freegstr(ctext)
+	widget := C.gtk_check_button_new_with_label(ctext)
+	return &checkbox{
+		button:		finishNewButton(widget, "toggled", C.checkboxToggled),
+		toggle:		(*C.GtkToggleButton)(unsafe.Pointer(widget)),
+		checkbox:	(*C.GtkCheckButton)(unsafe.Pointer(widget)),
+	}
+}
+
+//export checkboxToggled
+func checkboxToggled(bwid *C.GtkToggleButton, data C.gpointer) {
+	// note that the finishNewButton() call uses the embedded *button as data
+	// this is fine because we're only deferring to buttonClicked() anyway
+	buttonClicked(nil, data)
+}
+
+func (c *checkbox) Checked() bool {
+	return fromgbool(C.gtk_toggle_button_get_active(c.toggle))
+}
+
+func (c *checkbox) SetChecked(checked bool) {
+	C.gtk_toggle_button_set_active(c.toggle, togbool(checked))
+}
+
+type textField struct {
+	*widgetbase
+	entry		*C.GtkEntry
+}
+
+func startNewTextField() *textField {
+	w := C.gtk_entry_new()
+	return &textField{
+		widgetbase:	newWidget(w),
+		entry:		(*C.GtkEntry)(unsafe.Pointer(w)),
+	}
+}
+
+func newTextField() *textField {
+	return startNewTextField()
+}
+
+func newPasswordField() *textField {
+	t := startNewTextField()
+	C.gtk_entry_set_visibility(t.entry, C.FALSE)
+	return t
+}
+
+func (t *textField) Text() string {
+	return fromgstr(C.gtk_entry_get_text(t.entry))
+}
+
+func (t *textField) SetText(text string) {
+	ctext := togstr(text)
+	defer freegstr(ctext)
+	C.gtk_entry_set_text(t.entry, ctext)
+}
+
+type label struct {
+	*widgetbase
+	misc			*C.GtkMisc
+	label			*C.GtkLabel
+	standalone	bool
+}
+
+func finishNewLabel(text string, standalone bool) *label {
+	ctext := togstr(text)
+	defer freegstr(ctext)
+	widget := C.gtk_label_new(ctext)
+	return &label{
+		widgetbase:	newWidget(widget),
+		misc:		(*C.GtkMisc)(unsafe.Pointer(widget)),
+		label:		(*C.GtkLabel)(unsafe.Pointer(widget)),
+		standalone:	standalone,
+	}
+}
+
+func newLabel(text string) Label {
+	return finishNewLabel(text, false)
+}
+
+func newStandaloneLabel(text string) Label {
+	return finishNewLabel(text, true)
+}
+
+func (l *label) Text() string {
+	return fromgstr(C.gtk_label_get_text(l.label))
+}
+
+func (l *label) SetText(text string) {
+	ctext := togstr(text)
+	defer freegstr(ctext)
+	C.gtk_label_set_text(l.label, ctext)
+}
+
+func (l *label) commitResize(c *allocation, d *sizing) {
+	if !l.standalone && c.neighbor != nil {
+		c.neighbor.getAuxResizeInfo(d)
+		if d.shouldVAlignTop {
+			// TODO should it be center-aligned to the first line or not
+			C.gtk_misc_set_alignment(l.misc, 0, 0)
+		} else {
+			C.gtk_misc_set_alignment(l.misc, 0, 0.5)
+		}
+	}
+	l.widgetbase.commitResize(c, d)
+}