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Moved ListView.ListWrapper out of ListView migueldeicaza/gui.cs#313` (#315)

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Timothy
2020-03-01 00:48:46 +08:00
committed by GitHub
parent d3ec722bd9
commit a24d29f50a
1 changed files with 62 additions and 62 deletions
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124
Terminal.Gui/Views/ListView.cs
View File

@@ -95,68 +95,6 @@ namespace Terminal.Gui {
int top;
int selected;
//
// This class is the built-in IListDataSource that renders arbitrary
// IList instances
//
class ListWrapper : IListDataSource {
IList src;
BitArray marks;
int count;
public ListWrapper (IList source)
{
count = source.Count;
marks = new BitArray (count);
this.src = source;
}
public int Count => src.Count;
void RenderUstr (ConsoleDriver driver, ustring ustr, int col, int line, int width)
{
int byteLen = ustr.Length;
int used = 0;
for (int i = 0; i < byteLen;) {
(var rune, var size) = Utf8.DecodeRune (ustr, i, i - byteLen);
var count = Rune.ColumnWidth (rune);
if (used+count >= width)
break;
driver.AddRune (rune);
used += count;
i += size;
}
for (; used < width; used++) {
driver.AddRune (' ');
}
}
public void Render (ListView container, ConsoleDriver driver, bool marked, int item, int col, int line, int width)
{
container.Move (col, line);
var t = src [item];
if (t is ustring) {
RenderUstr (driver, (ustring)t, col, line, width);
} else if (t is string) {
RenderUstr (driver, (string)t, col, line, width);
} else
RenderUstr (driver, t.ToString (), col, line, width);
}
public bool IsMarked (int item)
{
if (item >= 0 && item < count)
return marks [item];
return false;
}
public void SetMark (int item, bool value)
{
if (item >= 0 && item < count)
marks [item] = value;
}
}
IListDataSource source;
/// <summary>
/// Gets or sets the IListDataSource backing this view, use SetSource() if you want to set a new IList source.
@@ -437,4 +375,66 @@ namespace Terminal.Gui {
return true;
}
}
/// <summary>
/// This class is the built-in IListDataSource that renders arbitrary
/// IList instances
/// </summary>
public class ListWrapper : IListDataSource {
IList src;
BitArray marks;
int count;
public ListWrapper (IList source)
{
count = source.Count;
marks = new BitArray (count);
this.src = source;
}
public int Count => src.Count;
void RenderUstr (ConsoleDriver driver, ustring ustr, int col, int line, int width)
{
int byteLen = ustr.Length;
int used = 0;
for (int i = 0; i < byteLen;) {
(var rune, var size) = Utf8.DecodeRune (ustr, i, i - byteLen);
var count = Rune.ColumnWidth (rune);
if (used+count >= width)
break;
driver.AddRune (rune);
used += count;
i += size;
}
for (; used < width; used++) {
driver.AddRune (' ');
}
}
public void Render (ListView container, ConsoleDriver driver, bool marked, int item, int col, int line, int width)
{
container.Move (col, line);
var t = src [item];
if (t is ustring) {
RenderUstr (driver, (ustring)t, col, line, width);
} else if (t is string) {
RenderUstr (driver, (string)t, col, line, width);
} else
RenderUstr (driver, t.ToString (), col, line, width);
}
public bool IsMarked (int item)
{
if (item >= 0 && item < count)
return marks [item];
return false;
}
public void SetMark (int item, bool value)
{
if (item >= 0 && item < count)
marks [item] = value;
}
}
}