A lot of layout work

example/ui.go

@@ -0,0 +1,118 @@
+/*
+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 main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/gdamore/tcell"
+)
+
+type Ui struct {
+	h, w int
+
+	running bool
+	tScreen tcell.Screen
+	style   tcell.Style
+
+	screen *UiScreen
+
+	cursor int
+}
+
+func NewUi() *Ui {
+	a := Ui{}
+	err := a.init()
+	if err != nil {
+		fmt.Println(err.Error())
+		os.Exit(1)
+	}
+	return &a
+}
+
+func (ui *Ui) init() error {
+	var err error
+	if ui.tScreen, err = tcell.NewScreen(); err != nil {
+		return err
+	}
+	if err = ui.tScreen.Init(); err != nil {
+		return err
+	}
+
+	ui.style = tcell.StyleDefault
+	ui.tScreen.SetStyle(ui.style)
+	ui.tScreen.Clear()
+
+	ui.SetScreen(&UiScreen{})
+
+	return nil
+}
+
+func (ui *Ui) run() error {
+	ui.running = true
+
+	for {
+		if !ui.running {
+			return nil
+		}
+
+		ui.tScreen.Clear()
+		ui.screen.Draw()
+
+		ui.tScreen.Show()
+
+		// Poll Events
+		ev := ui.tScreen.PollEvent()
+		switch ev := ev.(type) {
+		case *tcell.EventResize:
+			ui.tScreen.Sync()
+			ui.w, ui.h = ev.Size()
+			ui.handleResize(ev)
+
+		case *tcell.EventKey:
+			if ev.Key() == tcell.KeyCtrlC {
+				ui.stop()
+				return nil
+			}
+			ui.screen.HandleKey(ev)
+
+		case *tcell.EventTime:
+			ui.screen.HandleTime(ev)
+		}
+	}
+}
+
+func (ui *Ui) handleResize(ev *tcell.EventResize) {
+	ui.w, ui.h = ev.Size()
+	ui.screen.HandleResize(ev)
+}
+
+func (ui *Ui) GetSize() (int, int) { return ui.tScreen.Size() }
+func (ui *Ui) SetScreen(scr *UiScreen) {
+	ui.screen = scr
+	ui.screen.Init(ui)
+	ui.screen.HandleResize(tcell.NewEventResize(ui.GetSize()))
+}
+
+func (ui *Ui) stop()    { ui.running = false }
+func (ui *Ui) cleanup() { ui.tScreen.Fini() }