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Fixes the draw clip bounds issue visible on ScrollView.

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This commit is contained in:
BDisp
2022-05-13 17:37:26 +01:00
parent 736d10598b
commit e941169dad
4 changed files with 276 additions and 32 deletions
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9
Terminal.Gui/Core/TextFormatter.cs
View File

@@ -1145,20 +1145,17 @@ namespace Terminal.Gui {
var start = isVertical ? bounds.Top : bounds.Left;
var size = isVertical ? bounds.Height : bounds.Width;
var current = start;
var startX = start < 0
? start
: isVertical ? start - y : start - x;
var savedClip = Application.Driver?.Clip;
if (Application.Driver != null && containerBounds != default) {
Application.Driver.Clip = containerBounds == default
? bounds
: new Rect (Math.Max (containerBounds.X, bounds.X),
Math.Max (containerBounds.Y, bounds.Y),
Math.Min (containerBounds.Width, containerBounds.Right - bounds.Left),
Math.Min (containerBounds.Height, containerBounds.Bottom - bounds.Top));
Math.Max (Math.Min (containerBounds.Width, containerBounds.Right - bounds.Left), 0),
Math.Max (Math.Min (containerBounds.Height, containerBounds.Bottom - bounds.Top), 0));
}
for (var idx = startX; current < start + size; idx++) {
for (var idx = (isVertical ? start - y : start - x); current < start + size; idx++) {
if (idx < 0) {
current++;
continue;

9
Terminal.Gui/Core/View.cs
View File

@@ -1417,15 +1417,20 @@ namespace Terminal.Gui {
Border.DrawContent (this);
}
if (!ustring.IsNullOrEmpty (Text) || (this is Label && !AutoSize)) {
if (!ustring.IsNullOrEmpty (TextFormatter.Text) || (this is Label && !AutoSize)) {
Clear ();
// Draw any Text
if (TextFormatter != null) {
TextFormatter.NeedsFormat = true;
}
var containerBounds = SuperView == null ? default : SuperView.ViewToScreen (SuperView.Bounds);
containerBounds.X = Math.Max (containerBounds.X, Driver.Clip.X);
containerBounds.Y = Math.Max (containerBounds.Y, Driver.Clip.Y);
containerBounds.Width = Math.Min (containerBounds.Width, Driver.Clip.Width);
containerBounds.Height = Math.Min (containerBounds.Height, Driver.Clip.Height);
TextFormatter?.Draw (ViewToScreen (Bounds), HasFocus ? ColorScheme.Focus : GetNormalColor (),
HasFocus ? ColorScheme.HotFocus : Enabled ? ColorScheme.HotNormal : ColorScheme.Disabled,
SuperView == null ? default : SuperView.ViewToScreen (SuperView.Bounds));
containerBounds);
}
// Invoke DrawContentEvent

20
Terminal.Gui/Views/Button.cs
View File

@@ -221,26 +221,6 @@ namespace Terminal.Gui {
SetNeedsDisplay ();
}
/// <inheritdoc/>
public override void Redraw (Rect bounds)
{
if (ColorScheme != null) {
Driver.SetAttribute (HasFocus ? ColorScheme.Focus : ColorScheme.Normal);
}
if (Border != null) {
Border.DrawContent (this);
}
if (!ustring.IsNullOrEmpty (TextFormatter.Text)) {
Clear ();
TextFormatter.NeedsFormat = true;
TextFormatter?.Draw (ViewToScreen (Bounds), HasFocus ? ColorScheme.Focus : GetNormalColor (),
HasFocus ? ColorScheme.HotFocus : Enabled ? ColorScheme.HotNormal : ColorScheme.Disabled,
SuperView == null ? default : SuperView.ViewToScreen (SuperView.Bounds));
}
}
///<inheritdoc/>
public override bool ProcessHotKey (KeyEvent kb)
{

270
UnitTests/ViewTests.cs
View File

@@ -1985,14 +1985,276 @@ Y
view.Frame = new Rect (0, 0, 8, 4);
((FakeDriver)Application.Driver).SetBufferSize (7, 3);
}
[Fact, AutoInitShutdown]
public void DrawTextFormatter_Respects_The_Clip_Bounds ()
{
var view = new View (new Rect (0, 0, 20, 20));
view.Add (new Label ("0123456789abcdefghij"));
view.Add (new Label (0, 1, "1\n2\n3\n4\n5\n6\n7\n8\n9\n0"));
view.Add (new Button (1, 1, "Press me!"));
var scrollView = new ScrollView (new Rect (1, 1, 15, 10)) {
ContentSize = new Size (40, 40),
ShowHorizontalScrollIndicator = true,
ShowVerticalScrollIndicator = true
};
scrollView.Add (view);
var win = new Window (new Rect (1, 1, 20, 14), "Test");
win.Add (scrollView);
Application.Top.Add (win);
Application.Begin (Application.Top);
var expected = @"
┌ Test ────────────┐
│ │
│ 0123456789abcd▲ │
│ 1[ Press me! ]┬ │
│ 2 │ │
│ 3 ┴ │
│ 4 ░ │
│ 5 ░ │
│ 6 ░ │
│ 7 ░ │
│ 8 ▼ │
│ ◄├───┤░░░░░░░► │
│ │
└──────────────────┘
";
var pos = GraphViewTests.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new Rect (1, 1, 21, 14), pos);
Assert.True (scrollView.ProcessKey (new KeyEvent (Key.CursorRight, new KeyModifiers ())));
Application.Top.Redraw (Application.Top.Bounds);
expected = @"
┌──────
│
│
┌ Test ────────────┐
│ │
│ 123456789abcde▲ │
│ [ Press me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄├───┤░░░░░░░► │
│ │
└──────────────────┘
";
pos = GraphViewTests.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new Rect (0, 0, 7, 3), pos);
Assert.Equal (new Rect (1, 1, 21, 14), pos);
Assert.True (scrollView.ProcessKey (new KeyEvent (Key.CursorRight, new KeyModifiers ())));
Application.Top.Redraw (Application.Top.Bounds);
expected = @"
┌ Test ────────────┐
│ │
│ 23456789abcdef▲ │
│ Press me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄├────┤░░░░░░► │
│ │
└──────────────────┘
";
pos = GraphViewTests.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new Rect (1, 1, 21, 14), pos);
Assert.True (scrollView.ProcessKey (new KeyEvent (Key.CursorRight, new KeyModifiers ())));
Application.Top.Redraw (Application.Top.Bounds);
expected = @"
┌ Test ────────────┐
│ │
│ 3456789abcdefg▲ │
│ Press me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄├────┤░░░░░░► │
│ │
└──────────────────┘
";
pos = GraphViewTests.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new Rect (1, 1, 21, 14), pos);
Assert.True (scrollView.ProcessKey (new KeyEvent (Key.CursorRight, new KeyModifiers ())));
Application.Top.Redraw (Application.Top.Bounds);
expected = @"
┌ Test ────────────┐
│ │
│ 456789abcdefgh▲ │
│ ress me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄░├───┤░░░░░░► │
│ │
└──────────────────┘
";
pos = GraphViewTests.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new Rect (1, 1, 21, 14), pos);
Assert.True (scrollView.ProcessKey (new KeyEvent (Key.CursorRight, new KeyModifiers ())));
Application.Top.Redraw (Application.Top.Bounds);
expected = @"
┌ Test ────────────┐
│ │
│ 56789abcdefghi▲ │
│ ess me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄░├────┤░░░░░► │
│ │
└──────────────────┘
";
pos = GraphViewTests.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new Rect (1, 1, 21, 14), pos);
Assert.True (scrollView.ProcessKey (new KeyEvent (Key.CursorRight, new KeyModifiers ())));
Application.Top.Redraw (Application.Top.Bounds);
expected = @"
┌ Test ────────────┐
│ │
│ 6789abcdefghij▲ │
│ ss me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄░├────┤░░░░░► │
│ │
└──────────────────┘
";
pos = GraphViewTests.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new Rect (1, 1, 21, 14), pos);
Assert.True (scrollView.ProcessKey (new KeyEvent (Key.CursorRight, new KeyModifiers ())));
Application.Top.Redraw (Application.Top.Bounds);
expected = @"
┌ Test ────────────┐
│ │
│ 789abcdefghij ▲ │
│ s me! ] ┬ │
│ │ │
│ ┴ │
│ ░ │
│ ░ │
│ ░ │
│ ░ │
│ ▼ │
│ ◄░░├───┤░░░░░► │
│ │
└──────────────────┘
";
pos = GraphViewTests.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new Rect (1, 1, 21, 14), pos);
Assert.True (scrollView.ProcessKey (new KeyEvent (Key.CtrlMask | Key.Home, new KeyModifiers ())));
Assert.True (scrollView.ProcessKey (new KeyEvent (Key.CursorDown, new KeyModifiers ())));
Application.Top.Redraw (Application.Top.Bounds);
expected = @"
┌ Test ────────────┐
│ │
│ 1[ Press me! ]▲ │
│ 2 ┬ │
│ 3 │ │
│ 4 ┴ │
│ 5 ░ │
│ 6 ░ │
│ 7 ░ │
│ 8 ░ │
│ 9 ▼ │
│ ◄├───┤░░░░░░░► │
│ │
└──────────────────┘
";
pos = GraphViewTests.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new Rect (1, 1, 21, 14), pos);
Assert.True (scrollView.ProcessKey (new KeyEvent (Key.CursorDown, new KeyModifiers ())));
Application.Top.Redraw (Application.Top.Bounds);
expected = @"
┌ Test ────────────┐
│ │
│ 2 ▲ │
│ 3 ┬ │
│ 4 │ │
│ 5 ┴ │
│ 6 ░ │
│ 7 ░ │
│ 8 ░ │
│ 9 ░ │
│ 0 ▼ │
│ ◄├───┤░░░░░░░► │
│ │
└──────────────────┘
";
pos = GraphViewTests.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new Rect (1, 1, 21, 14), pos);
Assert.True (scrollView.ProcessKey (new KeyEvent (Key.CursorDown, new KeyModifiers ())));
Application.Top.Redraw (Application.Top.Bounds);
expected = @"
┌ Test ────────────┐
│ │
│ 3 ▲ │
│ 4 ┬ │
│ 5 │ │
│ 6 ┴ │
│ 7 ░ │
│ 8 ░ │
│ 9 ░ │
│ 0 ░ │
│ ▼ │
│ ◄├───┤░░░░░░░► │
│ │
└──────────────────┘
";
pos = GraphViewTests.AssertDriverContentsWithFrameAre (expected, output);
Assert.Equal (new Rect (1, 1, 21, 14), pos);
}
}
}