gui menu dev

gui/menu.go

@@ -0,0 +1,104 @@
+// Copyright 2016 The G3N Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package gui
+
+type MenuBar struct {
+}
+
+type Menu struct {
+	Panel             // embedded panel
+	items []*MenuItem // menu items
+}
+
+type MenuItem struct {
+	Panel             // embedded panel
+	label   *Label    // optional internal label (nil for separators)
+	image   *Image    // optional left internal image
+	licon   *Label    // optional left internal icon label
+	ricon   *Label    // optional right internal icon label for submenu
+	icode   int       // icon code (if icon is set)
+	subm    *MenuItem // optional pointer to sub menu
+	shorcut int32     // shortcut code
+	enabled bool      // enabled state
+}
+
+// NewMenu creates and returns a pointer to a new empty menu
+func NewMenu() *Menu {
+
+	m := new(Menu)
+	m.items = make([]*MenuItem, 0)
+	return m
+}
+
+// AddItem creates and adds a new menu item to this menu and returns the pointer
+// to the created item.
+func (m *Menu) AddItem(text string) *MenuItem {
+
+	mi := new(MenuItem)
+	mi.label = NewLabel(text)
+	mi.Panel.Add(mi.label)
+
+	m.items = append(m.items, mi)
+	return mi
+}
+
+// AddSeparator creates and adds a new separator to the menu
+func (m *Menu) AddSeparator() *MenuItem {
+
+	mi := new(MenuItem)
+	return mi
+}
+
+// RemoveItem removes the specified menu item from this menu
+func (m *Menu) RemoveItem(mi *MenuItem) {
+
+}
+
+// recalc recalculates the positions of this menu internal items
+func (m *Menu) recalc() {
+
+}
+
+// SetIcon sets the left icon of this menu item
+// If an image was previously set it is replaced by this icon
+func (mi *MenuItem) SetIcon(icode int) *MenuItem {
+
+	return mi
+}
+
+// SetImage sets the left image of this menu item
+// If an icon was previously set it is replaced by this image
+func (mi *MenuItem) SetImage(img *Image) *MenuItem {
+
+	return mi
+}
+
+// SetText sets the text of this menu item
+func (mi *MenuItem) SetText(text string) *MenuItem {
+
+	return mi
+}
+
+// SetShortcut sets the keyboard shortcut of this menu item
+func (mi *MenuItem) SetShortcut(text string) *MenuItem {
+
+	return mi
+}
+
+// SetSubmenu sets an associated sub menu item for this menu item
+func (mi *MenuItem) SetSubmenu(smi *MenuItem) *MenuItem {
+
+	return mi
+}
+
+// SetEnabled sets the enabled state of this menu item
+func (mi *MenuItem) SetEnabled(enabled bool) *MenuItem {
+
+	return mi
+}
+
+// recalc recalculates the positions of this menu item internal panels
+func (mi *MenuItem) recalc() {
+}