forks
/
dlangui
mirror of https://github.com/buggins/dlangui.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

editline: support backspace and del

This commit is contained in:
Vadim Lopatin 2014-04-20 08:57:45 +04:00
parent 083241ce3f
commit 34e3f8ec06
1 changed files with 42 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
src/dlangui/widgets/editors.d
View File

@ -150,7 +150,18 @@ class EditableContent {
}
bool performOperation(EditOperation op) {
if (op.action == EditAction.Insert) {
if (op.action == EditAction.Delete) {
TextRange rangeBefore = op.range;
dchar[] buf;
dstring srcline = _lines[op.range.start.line];
buf ~= srcline[0 .. op.range.start.pos];
buf ~= srcline[op.range.end.pos .. $];
_lines[op.range.start.line] = cast(dstring)buf;
TextRange rangeAfter = rangeBefore;
rangeAfter.end = rangeAfter.start;
handleContentChange(op, rangeBefore, rangeAfter);
return true;
} else if (op.action == EditAction.Insert) {
// TODO: multiline
TextPosition pos = op.range.start;
TextRange rangeBefore = TextRange(pos, pos);
@ -185,6 +196,10 @@ enum EditorActions {
LineEnd,
DocumentBegin,
DocumentEnd,
DelPrevChar, // backspace
DelNextChar, // del key
DelPrevWord, // ctrl + backspace
DelNextWord, // ctrl + del key
}
/// single line editor
@ -217,6 +232,10 @@ class EditLine : Widget, EditableContentListener {
new Action(EditorActions.LineEnd, KeyCode.END, 0),
new Action(EditorActions.DocumentBegin, KeyCode.HOME, KeyFlag.Control),
new Action(EditorActions.DocumentEnd, KeyCode.END, KeyFlag.Control),
new Action(EditorActions.DelPrevChar, KeyCode.BACK, 0),
new Action(EditorActions.DelNextChar, KeyCode.DEL, 0),
new Action(EditorActions.DelPrevWord, KeyCode.BACK, KeyFlag.Control),
new Action(EditorActions.DelNextWord, KeyCode.DEL, KeyFlag.Control),
]);
}
@ -310,6 +329,22 @@ class EditLine : Widget, EditableContentListener {
invalidate();
}
return true;
case EditorActions.DelPrevChar:
if (_caretPos.pos > 0) {
TextRange range = TextRange(_caretPos, _caretPos);
range.start.pos--;
EditOperation op = new EditOperation(EditAction.Delete, range, null);
_content.performOperation(op);
}
return true;
case EditorActions.DelNextChar:
if (_caretPos.pos < _measuredText.length) {
TextRange range = TextRange(_caretPos, _caretPos);
range.end.pos++;
EditOperation op = new EditOperation(EditAction.Delete, range, null);
_content.performOperation(op);
}
return true;
case EditorActions.Up:
break;
case EditorActions.Down:
@ -352,9 +387,12 @@ class EditLine : Widget, EditableContentListener {
//}
} else if (event.action == KeyAction.Text && event.text.length) {
Log.d("text entered: ", event.text);
EditOperation op = new EditOperation(EditAction.Insert, _caretPos, event.text);
_content.performOperation(op);
return true;
dchar ch = event.text[0];
if (ch != 8) { // ignore Backspace
EditOperation op = new EditOperation(EditAction.Insert, _caretPos, event.text);
_content.performOperation(op);
return true;
}
}
return super.onKeyEvent(event);
}