mirror of
https://github.com/gui-cs/Terminal.Gui.git
synced 2026-01-01 16:59:35 +01:00
239 lines
7.2 KiB
C#
239 lines
7.2 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 {
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[ScenarioMetadata (Name: "Buttons", Description: "Demonstrates all sorts of Buttons")]
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[ScenarioCategory ("Controls")]
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[ScenarioCategory ("Layout")]
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class Buttons : 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 button (IsDefault = true); if user presses ENTER in the TextField
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// the scenario will quit
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var defaultButton = new Button ("_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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Clicked = () => Application.RequestStop (),
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};
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Win.Add (defaultButton);
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var swapButton = new Button (50, 0, "Swap Default (Absolute Layout)");
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swapButton.Clicked = () => {
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defaultButton.IsDefault = !defaultButton.IsDefault;
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swapButton.IsDefault = !swapButton.IsDefault;
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};
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Win.Add (swapButton);
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static void DoMessage (Button button, ustring txt)
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{
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button.Clicked = () => {
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var btnText = button.Text.ToString ();
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MessageBox.Query ("Message", $"Did you click {txt}?", "Yes", "No");
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};
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}
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var colorButtonsLabel = new Label ("Color Buttons:") {
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X = 0,
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Y = Pos.Bottom (editLabel) + 1,
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};
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Win.Add (colorButtonsLabel);
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View prev = colorButtonsLabel;
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foreach (var colorScheme in Colors.ColorSchemes) {
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var colorButton = new Button ($"{colorScheme.Key}") {
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ColorScheme = colorScheme.Value,
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X = Pos.Right (prev) + 2,
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Y = Pos.Y (colorButtonsLabel),
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};
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DoMessage (colorButton, colorButton.Text);
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Win.Add (colorButton);
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prev = colorButton;
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}
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// BUGBUG: For some reason these buttons don't move to correct locations initially.
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Button button;
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Win.Add (button = new Button ("A super long _Button 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 (colorButtonsLabel) + 1,
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});
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DoMessage (button, button.Text);
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// Note the 'N' in 'Newline' will be the hotkey
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Win.Add (button = new Button ("a Newline\nin the button") {
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X = 2,
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Y = Pos.Bottom (button) + 1,
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Clicked = () => MessageBox.Query ("Message", "Question?", "Yes", "No")
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});
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var textChanger = new Button ("Te_xt Changer") {
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X = 2,
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Y = Pos.Bottom (button) + 1,
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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 (button = new Button ("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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});
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var removeButton = new Button ("Remove this button") {
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X = 2,
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Y = Pos.Bottom (button) + 1,
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ColorScheme = Colors.Error
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};
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Win.Add (removeButton);
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// This in intresting test case because `moveBtn` and below are laid out relative to this one!
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removeButton.Clicked = () => Win.Remove (removeButton);
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var computedFrame = new FrameView ("Computed Layout") {
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X = 0,
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Y = Pos.Bottom (removeButton) + 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 Button ("Move This Button 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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};
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moveBtn.Clicked = () => {
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moveBtn.X = moveBtn.Frame.X + 5;
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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 Button ("Size This Button 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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};
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sizeBtn.Clicked = () => {
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sizeBtn.Width = sizeBtn.Frame.Width + 5;
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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 (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 (removeButton) + 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 Button (0, 0, "Move This Button via Frame") {
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ColorScheme = Colors.Error,
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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 Button (0, 2, "Size This Button via Frame") {
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ColorScheme = Colors.Error,
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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 buttons above): ") {
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X = 2,
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Y = Pos.Bottom (computedFrame) + 1,
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};
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Win.Add (label);
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var radioGroup = new RadioGroup (new [] { "Left", "Right", "Centered", "Justified" }) {
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X = 4,
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Y = Pos.Bottom (label) + 1,
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Selected = 2,
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SelectedItemChanged = (selected) => {
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switch (selected) {
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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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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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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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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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break;
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}
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}
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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 i = txt.IndexOf ('_');
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var start = txt [0, i];
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txt = start + txt [i + 1, txt.Length];
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// Move over one or go to start
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i++;
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if (i >= txt.Length) {
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i = 0;
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}
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// Slip in the '_'
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start = txt [0, i];
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txt = start + ustring.Make ('_') + txt [i, txt.Length];
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return txt;
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}
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var moveHotKeyBtn = new Button ("Click to Change th_is Button's Hotkey") {
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X = 2,
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Y = Pos.Bottom (radioGroup) + 1,
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ColorScheme = Colors.TopLevel,
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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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}
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}
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}
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