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selection highlight for EditLine

This commit is contained in:
Vadim Lopatin 2014-04-24 14:16:40 +04:00
parent 117d4ce33e
commit 72ddb2efb7
1 changed files with 27 additions and 0 deletions
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27
src/dlangui/widgets/editors.d
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@ -1286,6 +1286,7 @@ class EditLine : EditWidgetBase {
override protected bool handleAction(Action a) {
switch (a.id) {
/*
case EditorActions.DelPrevChar:
if (_caretPos.pos > 0) {
TextRange range = TextRange(_caretPos, _caretPos);
@ -1302,6 +1303,7 @@ class EditLine : EditWidgetBase {
_content.performOperation(op);
}
return true;
*/
case EditorActions.Up:
break;
case EditorActions.Down:
@ -1345,6 +1347,24 @@ class EditLine : EditWidgetBase {
applyPadding(_clientRc);
}
/// override to custom highlight of line background
protected void drawLineBackground(DrawBuf buf, Rect lineRect, Rect visibleRect) {
if (!_selectionRange.empty) {
// line inside selection
Rect startrc = textPosToClient(_selectionRange.start);
Rect endrc = textPosToClient(_selectionRange.end);
int startx = startrc.left + _clientRc.left;
int endx = endrc.left + _clientRc.left;
Rect rc = lineRect;
rc.left = startx;
rc.right = endx;
if (!rc.empty) {
// draw selection rect for line
buf.fillRect(rc, 0xB060A0FF);
}
}
}
/// draw content
override void onDraw(DrawBuf buf) {
if (visibility != Visibility.Visible)
@ -1358,6 +1378,13 @@ class EditLine : EditWidgetBase {
dstring txt = text;
Point sz = font.textSize(txt);
//applyAlign(rc, sz);
Rect lineRect = _clientRc;
lineRect.left = _clientRc.left - _scrollPos.x;
lineRect.right = lineRect.left + calcLineWidth(txt);
Rect visibleRect = lineRect;
visibleRect.left = _clientRc.left;
visibleRect.right = _clientRc.right;
drawLineBackground(buf, lineRect, visibleRect);
font.drawText(buf, rc.left - _scrollPos.x, rc.top + sz.y / 10, txt, textColor, tabSize);
if (focused) {
// draw caret