mirror of
https://github.com/gui-cs/Terminal.Gui.git
synced 2025-12-28 16:58:01 +01:00
295 lines
8.3 KiB
C#
295 lines
8.3 KiB
C#
using System;
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using Terminal.Gui;
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namespace UICatalog {
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[ScenarioMetadata (Name: "Scrolling", Description: "Demonstrates ScrollView etc...")]
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[ScenarioCategory ("Controls")]
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[ScenarioCategory ("Bug Repro")]
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class Scrolling : Scenario {
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class Box10x : View {
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int w = 40;
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int h = 50;
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public bool WantCursorPosition { get; set; } = false;
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public Box10x (int x, int y) : base (new Rect (x, y, 20, 10))
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{
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}
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public Size GetContentSize ()
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{
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return new Size (w, h);
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}
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public void SetCursorPosition (Point pos)
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{
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throw new NotImplementedException ();
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}
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public override void Redraw (Rect bounds)
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{
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//Point pos = new Point (region.X, region.Y);
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Driver.SetAttribute (ColorScheme.Focus);
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for (int y = 0; y < h; y++) {
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Move (0, y);
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Driver.AddStr (y.ToString ());
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for (int x = 0; x < w - y.ToString ().Length; x++) {
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//Driver.AddRune ((Rune)('0' + (x + y) % 10));
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if (y.ToString ().Length < w)
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Driver.AddStr (" ");
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}
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}
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//Move (pos.X, pos.Y);
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}
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}
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class Filler : View {
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int w = 40;
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int h = 50;
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public Filler (Rect rect) : base (rect)
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{
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w = rect.Width;
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h = rect.Height;
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}
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public Size GetContentSize ()
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{
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return new Size (w, h);
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}
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public override void Redraw (Rect bounds)
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{
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Driver.SetAttribute (ColorScheme.Focus);
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var f = Frame;
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w = 0;
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h = 0;
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for (int y = 0; y < f.Width; y++) {
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Move (0, y);
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var nw = 0;
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for (int x = 0; x < f.Height; x++) {
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Rune r;
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switch (x % 3) {
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case 0:
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var er = y.ToString ().ToCharArray (0, 1) [0];
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nw += er.ToString ().Length;
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Driver.AddRune (er);
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if (y > 9) {
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er = y.ToString ().ToCharArray (1, 1) [0];
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nw += er.ToString ().Length;
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Driver.AddRune (er);
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}
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r = '.';
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break;
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case 1:
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r = 'o';
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break;
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default:
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r = 'O';
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break;
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}
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Driver.AddRune (r);
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nw += Rune.RuneLen (r);
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}
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if (nw > w)
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w = nw;
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h = y + 1;
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}
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}
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}
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public override void Setup ()
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{
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Win.X = 3;
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Win.Y = 3;
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Win.Width = Dim.Fill () - 3;
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Win.Height = Dim.Fill () - 3;
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var label = new Label ("ScrollView (new Rect (2, 2, 50, 20)) with a 200, 100 ContentSize...") {
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X = 0,
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Y = 0,
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ColorScheme = Colors.Dialog
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};
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Win.Add (label);
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// BUGBUG: ScrollView only supports Absolute Positioning (#72)
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var scrollView = new ScrollView (new Rect (2, 2, 50, 20)) {
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ColorScheme = Colors.TopLevel,
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ContentSize = new Size (200, 100),
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//ContentOffset = new Point (0, 0),
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ShowVerticalScrollIndicator = true,
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ShowHorizontalScrollIndicator = true,
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};
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const string rule = "|123456789";
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var horizontalRuler = new Label ("") {
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X = 0,
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Y = 0,
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Width = Dim.Fill (1), // BUGBUG: I don't think this should be needed; DimFill() should respect container's frame. X does.
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ColorScheme = Colors.Error
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};
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scrollView.Add (horizontalRuler);
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const string vrule = "|\n1\n2\n3\n4\n5\n6\n7\n8\n9\n";
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var verticalRuler = new Label ("") {
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X = 0,
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Y = 0,
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Width = 1,
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Height = Dim.Fill (),
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ColorScheme = Colors.Error
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};
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scrollView.Add (verticalRuler);
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Win.LayoutComplete += (a) => {
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horizontalRuler.Text = rule.Repeat ((int)Math.Ceiling ((double)(horizontalRuler.Bounds.Width) / (double)rule.Length)) [0..(horizontalRuler.Bounds.Width)] +
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"\n" + "| ".Repeat ((int)Math.Ceiling ((double)(horizontalRuler.Bounds.Width) / (double)rule.Length)) [0..(horizontalRuler.Bounds.Width)];
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verticalRuler.Text = vrule.Repeat ((int)Math.Ceiling ((double)(verticalRuler.Bounds.Height * 2) / (double)rule.Length)) [0..(verticalRuler.Bounds.Height * 2)];
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};
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var pressMeButton = new Button ("Press me!") {
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X = 3,
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Y = 3,
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};
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pressMeButton.Clicked += () => MessageBox.Query (20, 7, "MessageBox", "Neat?", "Yes", "No");
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scrollView.Add (pressMeButton);
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var aLongButton = new Button ("A very long button. Should be wide enough to demo clipping!") {
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X = 3,
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Y = 4,
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Width = Dim.Fill (6),
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};
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aLongButton.Clicked += () => MessageBox.Query (20, 7, "MessageBox", "Neat?", "Yes", "No");
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scrollView.Add (aLongButton);
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scrollView.Add (new TextField ("This is a test of...") {
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X = 3,
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Y = 5,
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Width = 50,
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ColorScheme = Colors.Dialog
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});
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scrollView.Add (new TextField ("... the emergency broadcast system.") {
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X = 3,
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Y = 10,
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Width = 50,
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ColorScheme = Colors.Dialog
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});
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scrollView.Add (new TextField ("Last line") {
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X = 3,
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Y = 99,
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Width = 50,
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ColorScheme = Colors.Dialog
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});
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// Demonstrate AnchorEnd - Button is anchored to bottom/right
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var anchorButton = new Button ("Bottom Right") {
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Y = Pos.AnchorEnd () - 1,
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};
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// TODO: Use Pos.Width instead of (Right-Left) when implemented (#502)
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anchorButton.X = Pos.AnchorEnd () - (Pos.Right (anchorButton) - Pos.Left (anchorButton));
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anchorButton.Clicked += () => {
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// Ths demonstrates how to have a dynamically sized button
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// Each time the button is clicked the button's text gets longer
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// The call to Win.LayoutSubviews causes the Computed layout to
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// get updated.
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anchorButton.Text += "!";
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Win.LayoutSubviews ();
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};
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scrollView.Add (anchorButton);
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var hCheckBox = new CheckBox ("Horizontal Scrollbar", scrollView.ShowHorizontalScrollIndicator) {
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X = Pos.X(scrollView),
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Y = Pos.Bottom(scrollView) + 1,
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};
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Win.Add (hCheckBox);
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var vCheckBox = new CheckBox ("Vertical Scrollbar", scrollView.ShowVerticalScrollIndicator) {
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X = Pos.Right (hCheckBox) + 3,
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Y = Pos.Bottom (scrollView) + 1,
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};
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Win.Add (vCheckBox);
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var t = "Auto Hide Scrollbars";
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var ahCheckBox = new CheckBox (t, scrollView.AutoHideScrollBars) {
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X = Pos.Left (scrollView) + (scrollView.Bounds.Width / 2) - (t.Length / 2),
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Y = Pos.Bottom (scrollView) + 3,
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};
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var k = "Keep Content Always In Viewport";
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var keepCheckBox = new CheckBox (k, scrollView.AutoHideScrollBars) {
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X = Pos.Left (scrollView) + (scrollView.Bounds.Width / 2) - (k.Length / 2),
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Y = Pos.Bottom (scrollView) + 4,
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};
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hCheckBox.Toggled += (_) => {
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if (!ahCheckBox.Checked) {
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scrollView.ShowHorizontalScrollIndicator = hCheckBox.Checked;
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} else {
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hCheckBox.Checked = true;
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MessageBox.Query ("Message", "Disable Auto Hide Scrollbars first.", "Ok");
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}
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};
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vCheckBox.Toggled += (_) => {
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if (!ahCheckBox.Checked) {
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scrollView.ShowVerticalScrollIndicator = vCheckBox.Checked;
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} else {
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vCheckBox.Checked = true;
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MessageBox.Query ("Message", "Disable Auto Hide Scrollbars first.", "Ok");
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}
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};
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ahCheckBox.Toggled += (_) => {
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scrollView.AutoHideScrollBars = ahCheckBox.Checked;
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hCheckBox.Checked = true;
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vCheckBox.Checked = true;
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};
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Win.Add (ahCheckBox);
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keepCheckBox.Toggled += (_) => scrollView.KeepContentAlwaysInViewport = keepCheckBox.Checked;
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Win.Add (keepCheckBox);
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var scrollView2 = new ScrollView (new Rect (55, 2, 20, 8)) {
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ContentSize = new Size (20, 50),
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//ContentOffset = new Point (0, 0),
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ShowVerticalScrollIndicator = true,
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ShowHorizontalScrollIndicator = true
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};
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var filler = new Filler (new Rect (0, 0, 60, 40));
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scrollView2.Add (filler);
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scrollView2.DrawContent = (r) => {
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scrollView2.ContentSize = filler.GetContentSize ();
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};
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// This is just to debug the visuals of the scrollview when small
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var scrollView3 = new ScrollView (new Rect (55, 15, 3, 3)) {
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ContentSize = new Size (100, 100),
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ShowVerticalScrollIndicator = true,
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ShowHorizontalScrollIndicator = true
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};
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scrollView3.Add (new Box10x (0, 0));
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int count = 0;
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var mousePos = new Label ("Mouse: ");
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mousePos.X = Pos.Right(scrollView) + 1;
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mousePos.Y = Pos.AnchorEnd (1);
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mousePos.Width = 50;
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Application.RootMouseEvent += delegate (MouseEvent me) {
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mousePos.Text = $"Mouse: ({me.X},{me.Y}) - {me.Flags} {count++}";
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};
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var progress = new ProgressBar ();
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progress.X = Pos.Right (scrollView) + 1;
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progress.Y = Pos.AnchorEnd (2);
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progress.Width = 50;
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bool timer (MainLoop caller)
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{
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progress.Pulse ();
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return true;
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}
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Application.MainLoop.AddTimeout (TimeSpan.FromMilliseconds (300), timer);
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Win.Add (scrollView, scrollView2, scrollView3, mousePos, progress);
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}
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}
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} |