Really figuring some things out

top_menu_layout.go

@@ -0,0 +1,149 @@
+/*
+Copyright © Brian Buller <brian@bullercodeworks.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+package widgets
+
+import (
+	wh "git.bullercodeworks.com/brian/tcell-widgets/helpers"
+	"github.com/gdamore/tcell"
+)
+
+// TopMenuLayout is a greedy widget and will consume all of the space you
+// give it
+type TopMenuLayout struct {
+	id    string
+	style tcell.Style
+
+	x, y   int
+	w, h   int
+	menu   *Menu
+	widget Widget
+
+	active  bool
+	visible bool
+}
+
+var _ Widget = (*TopMenuLayout)(nil)
+
+func NewTopMenuLayout(id string, s tcell.Style) *TopMenuLayout {
+	ret := &TopMenuLayout{}
+	ret.Init(id, s)
+	return ret
+}
+
+func (w *TopMenuLayout) Init(id string, s tcell.Style) {
+	w.id = id
+	w.style = s
+	w.visible = true
+
+	w.menu = NewMenu("mainmenu", tcell.StyleDefault)
+	w.menu.SetActive(false)
+	w.menu.SetType(MenuTypeH)
+	w.menu.SetTabbable(false)
+}
+
+func (w *TopMenuLayout) Id() string { return w.id }
+func (w *TopMenuLayout) HandleResize(ev *tcell.EventResize) {
+	w.w, w.h = ev.Size()
+	availW, availH := w.w, w.h
+	if w.menu != nil {
+		w.menu.SetPos(Coord{X: 0, Y: 0})
+		w.menu.SetSize(Coord{X: w.w, Y: 1})
+		availH = w.h - 1
+	}
+	if w.widget != nil {
+		w.widget.SetPos(Coord{X: 0, Y: 1})
+		w.widget.HandleResize(tcell.NewEventResize(availW-1, availH-1))
+	}
+}
+
+func (w *TopMenuLayout) HandleKey(ev *tcell.EventKey) bool {
+	if !w.active {
+		return false
+	}
+	if ev.Key() == tcell.KeyEscape && w.menu != nil {
+		w.menu.SetActive(!w.menu.Active())
+		return true
+	}
+	if w.menu.HandleKey(ev) {
+		return true
+	}
+
+	// Pass the key through to the main widget
+	if w.widget != nil {
+		return w.widget.HandleKey(ev)
+	}
+	return false
+}
+
+func (w *TopMenuLayout) HandleTime(ev *tcell.EventTime) {
+	w.menu.HandleTime(ev)
+	w.widget.HandleTime(ev)
+}
+
+func (w *TopMenuLayout) Draw(screen tcell.Screen) {
+	if !w.visible {
+		return
+	}
+	p := w.GetPos()
+	if w.menu != nil {
+		w.menu.DrawOffset(p, screen)
+	}
+	if w.widget != nil {
+		w.widget.DrawOffset(p, screen)
+	}
+}
+
+func (w *TopMenuLayout) DrawOffset(c Coord, screen tcell.Screen) {
+	p := w.GetPos()
+	w.SetPos(p.Add(c))
+	w.Draw(screen)
+	w.SetPos(p)
+}
+
+func (w *TopMenuLayout) Active() bool       { return w.active }
+func (w *TopMenuLayout) SetActive(a bool)   { w.active = a }
+func (w *TopMenuLayout) Visible() bool      { return w.visible }
+func (w *TopMenuLayout) SetVisible(a bool)  { w.visible = a }
+func (w *TopMenuLayout) SetX(x int)         { w.x = x }
+func (w *TopMenuLayout) SetY(y int)         { w.y = y }
+func (w *TopMenuLayout) GetX() int          { return w.x }
+func (w *TopMenuLayout) GetY() int          { return w.y }
+func (w *TopMenuLayout) GetPos() Coord      { return Coord{X: w.x, Y: w.y} }
+func (w *TopMenuLayout) SetPos(c Coord)     { w.x, w.y = c.X, c.Y }
+func (w *TopMenuLayout) SetW(x int)         { w.w = x }
+func (w *TopMenuLayout) SetH(y int)         { w.h = y }
+func (w *TopMenuLayout) GetW() int          { return w.w }
+func (w *TopMenuLayout) GetH() int          { return w.y }
+func (w *TopMenuLayout) SetSize(c Coord)    { w.w, w.h = c.X, c.Y }
+func (w *TopMenuLayout) Focusable() bool    { return true }
+func (w *TopMenuLayout) SetTabbable(b bool) {}
+func (w *TopMenuLayout) Tabbable() bool     { return true }
+
+func (w *TopMenuLayout) WantW() int { return wh.MaxInt }
+func (w *TopMenuLayout) WantH() int { return wh.MaxInt }
+func (w *TopMenuLayout) MinW() int  { return 0 }
+func (w *TopMenuLayout) MinH() int  { return 0 }
+
+func (w *TopMenuLayout) Menu() *Menu                     { return w.menu }
+func (w *TopMenuLayout) AddMenuItems(iL ...*MenuItem)    { w.menu.AddItems(iL...) }
+func (w *TopMenuLayout) RemoveMenuItems(iL ...*MenuItem) { w.menu.RemoveItems(iL...) }
+func (w *TopMenuLayout) SetWidget(wd Widget)             { w.widget = wd }