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// Copyright 2015 The Tops'l Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use file except in compliance with the License.
// You may obtain a copy of the license at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package views
// Panel is a modified Layout that includes a primary content pane,
// prefixed with an optional title, and an optional menubar, and then
// suffixed by an optional status.
//
// Only the content pane is resizable. The panel will be formatted
// like this:
//
// +----------
// | title
// | menu
// | content....
// | <padding>
// | status
// +----------
//
// Each of these components may be any valid widget; their names are
// only meant to be indicative of conventional use, not prescriptive.
type Panel struct {
title Widget
menu Widget
content Widget
status Widget
inited bool
BoxLayout
}
// Draw draws the Panel.
func (p *Panel) Draw() {
p.BoxLayout.SetOrientation(Vertical)
p.BoxLayout.Draw()
}
// SetTitle sets the Widget to display in the title area.
func (p *Panel) SetTitle(w Widget) {
if p.title != nil {
p.RemoveWidget(p.title)
}
p.InsertWidget(0, w, 0.0)
p.title = w
}
// SetMenu sets the Widget to display in the menu area, which is
// just below the title.
func (p *Panel) SetMenu(w Widget) {
index := 0
if p.title != nil {
index++
}
if p.menu != nil {
p.RemoveWidget(p.menu)
}
p.InsertWidget(index, w, 0.0)
p.menu = w
}
// SetContent sets the Widget to display in the content area.
func (p *Panel) SetContent(w Widget) {
index := 0
if p.title != nil {
index++
}
if p.menu != nil {
index++
}
if p.content != nil {
p.RemoveWidget(p.content)
}
p.InsertWidget(index, w, 1.0)
p.content = w
}
// SetStatus sets the Widget to display in the status area, which is at
// the bottom of the panel.
func (p *Panel) SetStatus(w Widget) {
index := 0
if p.title != nil {
index++
}
if p.menu != nil {
index++
}
if p.content != nil {
index++
}
if p.status != nil {
p.RemoveWidget(p.status)
}
p.InsertWidget(index, w, 0.0)
p.status = w
}
// NewPanel creates a new Panel. A zero valued panel can be created too.
func NewPanel() *Panel {
return &Panel{}
}
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