mirror of
https://github.com/gui-cs/Terminal.Gui.git
synced 2025-12-26 15:57:56 +01:00
312 lines
10 KiB
C#
312 lines
10 KiB
C#
using NStack;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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using Terminal.Gui;
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namespace UICatalog.Scenarios {
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[ScenarioMetadata (Name: "Labels As Buttons", Description: "Illustrates that Button is really just a Label++")]
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[ScenarioCategory ("Controls")]
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[ScenarioCategory ("Proof of Concept")]
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public class LabelsAsLabels : Scenario {
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public override void Setup ()
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{
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// Add a label & text field so we can demo IsDefault
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var editLabel = new Label ("TextField (to demo IsDefault):") {
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X = 0,
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Y = 0,
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};
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Win.Add (editLabel);
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// Add a TextField using Absolute layout.
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var edit = new TextField (31, 0, 15, "");
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Win.Add (edit);
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// This is the default Label (IsDefault = true); if user presses ENTER in the TextField
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// the scenario will quit
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var defaultLabel = new Label ("_Quit") {
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X = Pos.Center (),
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//TODO: Change to use Pos.AnchorEnd()
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Y = Pos.Bottom (Win) - 3,
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//IsDefault = true,
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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};
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defaultLabel.Clicked += () => Application.RequestStop ();
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Win.Add (defaultLabel);
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var swapLabel = new Label (50, 0, "S_wap Default (Absolute Layout)") {
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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};
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swapLabel.Clicked += () => {
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//defaultLabel.IsDefault = !defaultLabel.IsDefault;
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//swapLabel.IsDefault = !swapLabel.IsDefault;
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};
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Win.Add (swapLabel);
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static void DoMessage (Label Label, ustring txt)
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{
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Label.Clicked += () => {
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var btnText = Label.Text.ToString ();
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MessageBox.Query ("Message", $"Did you click {txt}?", "Yes", "No");
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};
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}
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var colorLabelsLabel = new Label ("Color Labels:") {
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X = 0,
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Y = Pos.Bottom (editLabel) + 1,
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};
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Win.Add (colorLabelsLabel);
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//With this method there is no need to call Application.TopReady += () => Application.TopRedraw (Top.Bounds);
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var x = Pos.Right (colorLabelsLabel) + 2;
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foreach (var colorScheme in Colors.ColorSchemes) {
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var colorLabel = new Label ($"{colorScheme.Key}") {
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ColorScheme = colorScheme.Value,
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X = x,
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Y = Pos.Y (colorLabelsLabel),
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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};
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DoMessage (colorLabel, colorLabel.Text);
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Win.Add (colorLabel);
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x += colorLabel.Text.Length + 2;
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}
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Application.Top.Ready += () => Application.Top.Redraw (Application.Top.Bounds);
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Label Label;
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Win.Add (Label = new Label ("A super long _Label that will probably expose a bug in clipping or wrapping of text. Will it?") {
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X = 2,
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Y = Pos.Bottom (colorLabelsLabel) + 1,
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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});
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DoMessage (Label, Label.Text);
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// Note the 'N' in 'Newline' will be the hotkey
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Win.Add (Label = new Label ("a Newline\nin the Label") {
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X = 2,
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Y = Pos.Bottom (Label) + 1,
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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TextAlignment = TextAlignment.Centered,
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VerticalTextAlignment = VerticalTextAlignment.Middle
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});
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Label.Clicked += () => MessageBox.Query ("Message", "Question?", "Yes", "No");
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var textChanger = new Label ("Te_xt Changer") {
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X = 2,
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Y = Pos.Bottom (Label) + 1,
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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};
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Win.Add (textChanger);
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textChanger.Clicked += () => textChanger.Text += "!";
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Win.Add (Label = new Label ("Lets see if this will move as \"Text Changer\" grows") {
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X = Pos.Right (textChanger) + 2,
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Y = Pos.Y (textChanger),
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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});
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var removeLabel = new Label ("Remove this Label") {
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X = 2,
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Y = Pos.Bottom (Label) + 1,
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ColorScheme = Colors.Error,
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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};
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Win.Add (removeLabel);
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// This in interesting test case because `moveBtn` and below are laid out relative to this one!
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removeLabel.Clicked += () => {
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// Now this throw a InvalidOperationException on the TopologicalSort method as is expected.
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//Win.Remove (removeLabel);
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removeLabel.Visible = false;
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Win.SetNeedsDisplay ();
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};
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var computedFrame = new FrameView ("Computed Layout") {
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X = 0,
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Y = Pos.Bottom (removeLabel) + 1,
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Width = Dim.Percent (50),
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Height = 5
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};
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Win.Add (computedFrame);
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// Demonstrates how changing the View.Frame property can move Views
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var moveBtn = new Label ("Move This \u263b Label _via Pos") {
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X = 0,
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Y = Pos.Center () - 1,
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Width = 30,
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ColorScheme = Colors.Error,
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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};
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moveBtn.Clicked += () => {
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moveBtn.X = moveBtn.Frame.X + 5;
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// This is already fixed with the call to SetNeedDisplay() in the Pos Dim.
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//computedFrame.LayoutSubviews (); // BUGBUG: This call should not be needed. View.X is not causing relayout correctly
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};
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computedFrame.Add (moveBtn);
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// Demonstrates how changing the View.Frame property can SIZE Views (#583)
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var sizeBtn = new Label ("Size This \u263a Label _via Pos") {
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//var sizeBtn = new Label ("Size This x Label _via Pos") {
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X = 0,
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Y = Pos.Center () + 1,
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Width = 30,
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ColorScheme = Colors.Error,
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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AutoSize = false
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};
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sizeBtn.Clicked += () => {
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sizeBtn.Width = sizeBtn.Frame.Width + 5;
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//computedFrame.LayoutSubviews (); // FIXED: This call should not be needed. View.X is not causing relayout correctly
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};
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computedFrame.Add (sizeBtn);
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var absoluteFrame = new FrameView ("Absolute Layout") {
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X = Pos.Right (computedFrame),
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Y = Pos.Bottom (removeLabel) + 1,
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Width = Dim.Fill (),
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Height = 5
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};
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Win.Add (absoluteFrame);
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// Demonstrates how changing the View.Frame property can move Views
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var moveBtnA = new Label (0, 0, "Move This Label via Frame") {
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ColorScheme = Colors.Error,
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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};
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moveBtnA.Clicked += () => {
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moveBtnA.Frame = new Rect (moveBtnA.Frame.X + 5, moveBtnA.Frame.Y, moveBtnA.Frame.Width, moveBtnA.Frame.Height);
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};
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absoluteFrame.Add (moveBtnA);
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// Demonstrates how changing the View.Frame property can SIZE Views (#583)
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var sizeBtnA = new Label (0, 2, " ~ s gui.cs master ↑10 = Со_хранить") {
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ColorScheme = Colors.Error,
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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AutoSize = false
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};
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sizeBtnA.Clicked += () => {
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sizeBtnA.Frame = new Rect (sizeBtnA.Frame.X, sizeBtnA.Frame.Y, sizeBtnA.Frame.Width + 5, sizeBtnA.Frame.Height);
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};
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absoluteFrame.Add (sizeBtnA);
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var label = new Label ("Text Alignment (changes the four Labels above): ") {
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X = 2,
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Y = Pos.Bottom (computedFrame) + 1,
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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};
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Win.Add (label);
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var radioGroup = new RadioGroup (new ustring [] { "Left", "Right", "Centered", "Justified" }) {
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X = 4,
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Y = Pos.Bottom (label) + 1,
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SelectedItem = 2,
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};
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Win.Add (radioGroup);
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// Demo changing hotkey
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ustring MoveHotkey (ustring txt)
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{
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// Remove the '_'
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var runes = txt.ToRuneList ();
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var i = runes.IndexOf ('_');
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ustring start = "";
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if (i > -1) {
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start = ustring.Make (runes.GetRange (0, i));
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}
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txt = start + ustring.Make (runes.GetRange (i + 1, runes.Count - (i + 1)));
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runes = txt.ToRuneList ();
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// Move over one or go to start
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i++;
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if (i >= runes.Count) {
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i = 0;
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}
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// Slip in the '_'
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start = ustring.Make (runes.GetRange (0, i));
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return start + ustring.Make ('_') + ustring.Make (runes.GetRange (i, runes.Count - i));
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}
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var mhkb = "Click to Change th_is Label's Hotkey";
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var moveHotKeyBtn = new Label (mhkb) {
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X = 2,
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Y = Pos.Bottom (radioGroup) + 1,
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Width = Dim.Width (computedFrame) - 2,
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ColorScheme = Colors.TopLevel,
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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};
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moveHotKeyBtn.Clicked += () => {
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moveHotKeyBtn.Text = MoveHotkey (moveHotKeyBtn.Text);
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};
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Win.Add (moveHotKeyBtn);
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ustring muhkb = " ~ s gui.cs master ↑10 = Сохранить";
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var moveUnicodeHotKeyBtn = new Label (muhkb) {
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X = Pos.Left (absoluteFrame) + 1,
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Y = Pos.Bottom (radioGroup) + 1,
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Width = Dim.Width (absoluteFrame) - 2,
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ColorScheme = Colors.TopLevel,
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HotKeySpecifier = (System.Rune)'_',
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CanFocus = true,
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};
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moveUnicodeHotKeyBtn.Clicked += () => {
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moveUnicodeHotKeyBtn.Text = MoveHotkey (moveUnicodeHotKeyBtn.Text);
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};
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Win.Add (moveUnicodeHotKeyBtn);
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radioGroup.SelectedItemChanged += (args) => {
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switch (args.SelectedItem) {
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case 0:
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moveBtn.TextAlignment = TextAlignment.Left;
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sizeBtn.TextAlignment = TextAlignment.Left;
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moveBtnA.TextAlignment = TextAlignment.Left;
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sizeBtnA.TextAlignment = TextAlignment.Left;
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moveHotKeyBtn.TextAlignment = TextAlignment.Left;
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moveUnicodeHotKeyBtn.TextAlignment = TextAlignment.Left;
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break;
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case 1:
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moveBtn.TextAlignment = TextAlignment.Right;
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sizeBtn.TextAlignment = TextAlignment.Right;
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moveBtnA.TextAlignment = TextAlignment.Right;
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sizeBtnA.TextAlignment = TextAlignment.Right;
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moveHotKeyBtn.TextAlignment = TextAlignment.Right;
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moveUnicodeHotKeyBtn.TextAlignment = TextAlignment.Right;
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break;
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case 2:
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moveBtn.TextAlignment = TextAlignment.Centered;
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sizeBtn.TextAlignment = TextAlignment.Centered;
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moveBtnA.TextAlignment = TextAlignment.Centered;
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sizeBtnA.TextAlignment = TextAlignment.Centered;
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moveHotKeyBtn.TextAlignment = TextAlignment.Centered;
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moveUnicodeHotKeyBtn.TextAlignment = TextAlignment.Centered;
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break;
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case 3:
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moveBtn.TextAlignment = TextAlignment.Justified;
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sizeBtn.TextAlignment = TextAlignment.Justified;
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moveBtnA.TextAlignment = TextAlignment.Justified;
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sizeBtnA.TextAlignment = TextAlignment.Justified;
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moveHotKeyBtn.TextAlignment = TextAlignment.Justified;
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moveUnicodeHotKeyBtn.TextAlignment = TextAlignment.Justified;
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break;
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}
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};
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Application.Top.Ready += () => radioGroup.Refresh ();
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}
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}
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} |