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replace mode support in editors (toggled by INS)

This commit is contained in:
Vadim Lopatin 2014-04-24 15:14:50 +04:00
parent f5bf1bb9ec
commit 37194b81b2
2 changed files with 71 additions and 35 deletions
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104
src/dlangui/widgets/editors.d
View File

@ -557,6 +557,9 @@ enum EditorActions {
/// insert new line after current position (Ctrl+Enter)
PrependNewLine,
/// Turn On/Off replace mode
ToggleReplaceMode,
/// Copy selection to clipboard
Copy,
/// Cut selection to clipboard
@ -590,8 +593,6 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
protected bool _useSpacesForTabs = false;
protected bool _replaceMode;
protected bool _readOnly;
this(string ID) {
super(ID);
@ -654,6 +655,9 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
new Action(EditorActions.Tab, KeyCode.TAB, 0),
new Action(EditorActions.BackTab, KeyCode.TAB, KeyFlag.Shift),
new Action(EditorActions.ToggleReplaceMode, KeyCode.INS, 0),
]);
}
@ -670,16 +674,12 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
/// readonly flag (when true, user cannot change content of editor)
@property bool readOnly() {
return _readOnly;
return !enabled;
}
/// sets readonly flag
@property EditWidgetBase readOnly(bool readOnly) {
_readOnly = readOnly;
if (_readOnly)
resetState(State.Enabled);
else
setState(State.Enabled);
enabled = !readOnly;
invalidate();
return this;
}
@ -768,6 +768,40 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
abstract protected Point measureVisibleText();
/// returns cursor rectangle
protected Rect caretRect() {
Rect caretRc = textPosToClient(_caretPos);
if (_replaceMode) {
dstring s = _content[_caretPos.line];
if (_caretPos.pos < s.length) {
TextPosition nextPos = _caretPos;
nextPos.pos++;
Rect nextRect = textPosToClient(nextPos);
caretRc.right = nextRect.right;
} else {
caretRc.right += _spaceWidth;
}
}
caretRc.offset(_clientRc.left, _clientRc.top);
return caretRc;
}
/// draws caret
protected void drawCaret(DrawBuf buf) {
if (focused) {
// draw caret
Rect caretRc = caretRect();
if (caretRc.intersects(_clientRc)) {
Rect rc1 = caretRc;
rc1.right = rc1.left + 1;
caretRc.left++;
if (_replaceMode)
buf.fillRect(caretRc, 0x808080FF);
buf.fillRect(rc1, 0x000000);
}
}
}
protected void updateFontProps() {
FontRef font = font();
_fixedFont = font.isFixed;
@ -933,7 +967,7 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
}
return true;
case EditorActions.DelPrevChar:
if (_readOnly)
if (readOnly)
return true;
if (!_selectionRange.empty) {
// clear selection
@ -960,7 +994,7 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
}
return true;
case EditorActions.DelNextChar:
if (_readOnly)
if (readOnly)
return true;
if (!_selectionRange.empty) {
EditOperation op = new EditOperation(EditAction.Replace, _selectionRange, [""d]);
@ -993,7 +1027,7 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
if (!_selectionRange.empty) {
dstring selectionText = concatDStrings(_content.rangeText(_selectionRange));
platform.setClipboardText(selectionText);
if (_readOnly)
if (readOnly)
return true;
EditOperation op = new EditOperation(EditAction.Replace, _selectionRange, [""d]);
_content.performOperation(op);
@ -1001,7 +1035,7 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
return true;
case EditorActions.Paste:
{
if (_readOnly)
if (readOnly)
return true;
dstring selectionText = platform.getClipboardText();
dstring[] lines;
@ -1016,21 +1050,21 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
return true;
case EditorActions.Undo:
{
if (_readOnly)
if (readOnly)
return true;
_content.undo();
}
return true;
case EditorActions.Redo:
{
if (_readOnly)
if (readOnly)
return true;
_content.redo();
}
return true;
case EditorActions.Tab:
{
if (_readOnly)
if (readOnly)
return true;
if (_selectionRange.empty) {
if (_useSpacesForTabs) {
@ -1064,7 +1098,7 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
return true;
case EditorActions.BackTab:
{
if (_readOnly)
if (readOnly)
return true;
if (_selectionRange.empty) {
// remove spaces before caret
@ -1098,6 +1132,9 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
}
}
}
return true;
case EditorActions.ToggleReplaceMode:
replaceMode = !replaceMode;
return true;
default:
break;
@ -1195,7 +1232,7 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
/// map key to action
override protected Action findKeyAction(uint keyCode, uint flags) {
// don't handle tabs when disabled
if (keyCode == KeyCode.TAB && (flags == 0 || flags == KeyFlag.Shift) && (!_wantTabs || _readOnly))
if (keyCode == KeyCode.TAB && (flags == 0 || flags == KeyFlag.Shift) && (!_wantTabs || readOnly))
return null;
return super.findKeyAction(keyCode, flags);
}
@ -1204,12 +1241,20 @@ class EditWidgetBase : WidgetGroup, EditableContentListener {
override bool onKeyEvent(KeyEvent event) {
if (event.action == KeyAction.Text && event.text.length) {
Log.d("text entered: ", event.text);
if (_readOnly)
if (readOnly)
return true;
dchar ch = event.text[0];
if (ch >= 32) { // ignore Backspace and Return
EditOperation op = new EditOperation(EditAction.Replace, _selectionRange, [event.text]);
_content.performOperation(op);
if (ch >= 32) { // ignore Backspace, Tab, Return, etc. chars
if (replaceMode && _selectionRange.empty && _content[_caretPos.line].length >= _caretPos.pos + event.text.length) {
// replace next char(s)
TextRange range = _selectionRange;
range.end.pos += cast(int)event.text.length;
EditOperation op = new EditOperation(EditAction.Replace, range, [event.text]);
_content.performOperation(op);
} else {
EditOperation op = new EditOperation(EditAction.Replace, _selectionRange, [event.text]);
_content.performOperation(op);
}
}
return true;
}
@ -1411,12 +1456,8 @@ class EditLine : EditWidgetBase {
visibleRect.right = _clientRc.right;
drawLineBackground(buf, lineRect, visibleRect);
font.drawText(buf, rc.left - _scrollPos.x, rc.top, txt, textColor, tabSize);
if (focused) {
// draw caret
Rect caretRc = textPosToClient(_caretPos);
caretRc.offset(_clientRc.left, _clientRc.top);
buf.fillRect(caretRc, 0x000000);
}
drawCaret(buf);
}
}
@ -1779,6 +1820,7 @@ class EditBox : EditWidgetBase, OnScrollHandler {
}
}
/// draw content
override void onDraw(DrawBuf buf) {
if (visibility != Visibility.Visible)
@ -1809,13 +1851,7 @@ class EditBox : EditWidgetBase, OnScrollHandler {
}
}
//buf.fillRect(_clientRc, 0x80E0E0FF); // testing clientRc
if (focused) {
// draw caret
Rect caretRc = textPosToClient(_caretPos);
caretRc.offset(_clientRc.left, _clientRc.top);
buf.fillRect(caretRc, 0x000000);
}
drawCaret(buf);
}
}

2
src/dlangui/widgets/styles.d
View File

@ -640,7 +640,7 @@ Theme createDefaultTheme() {
res.fontFace = "Verdana";
}
//res.fontFace = "Arial Narrow";
res.fontSize = 13; // TODO: choose based on DPI
res.fontSize = 15; // TODO: choose based on DPI
Style button = res.createSubstyle("BUTTON").backgroundImageId("btn_default_small").alignment(Align.Center);
res.createSubstyle("BUTTON_TRANSPARENT").backgroundImageId("btn_default_small_transparent").alignment(Align.Center);
res.createSubstyle("BUTTON_LABEL").layoutWidth(FILL_PARENT).alignment(Align.Left|Align.VCenter);