158 lines
3.7 KiB
Text
158 lines
3.7 KiB
Text
gui.widgets.LineEdit = {
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new: func(parent, style, cfg)
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{
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var m = gui.Widget.new(gui.widgets.LineEdit);
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m._cfg = Config.new(cfg);
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m._focus_policy = m.StrongFocus;
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m._setView( style.createWidget(parent, "line-edit", m._cfg) );
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m.setLayoutMinimumSize([28, 16]);
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m.setLayoutSizeHint([150, 28]);
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m._text = "";
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m._max_length = 32767;
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m._cursor = 0;
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m._selection_start = 0;
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m._selection_end = 0;
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return m;
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},
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setText: func(text)
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{
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me._text = utf8.substr(text, 0, me._max_length);
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me._cursor = utf8.size(me._text);
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me._selection_start = me._cursor;
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me._selection_end = me._cursor;
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if( me._view != nil )
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me._view.setText(me, me._text);
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},
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text: func()
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{
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return me._text;
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},
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setMaxLength: func(len)
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{
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me._max_length = len;
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if( utf8.size(me._text) <= len )
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return;
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me._text = utf8.substr(me._text, 0, me._max_length);
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me.moveCursor(me._cursor);
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},
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moveCursor: func(pos, mark = 0)
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{
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var len = utf8.size(me._text);
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me._cursor = math.max(0, math.min(pos, len));
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me._selection_start = me._cursor;
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me._selection_end = me._cursor;
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me._onStateChange();
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},
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home: func()
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{
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me.moveCursor(0);
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},
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end: func()
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{
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me.moveCursor(utf8.size(me._text));
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},
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# Insert given text after cursor (and first remove selection if set)
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insert: func(text)
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{
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var after = utf8.substr(me._text, me._selection_end);
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me._text = utf8.substr(me._text, 0, me._selection_start);
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# Replace selected text, insert new text and place cursor after inserted
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# text
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var remaining = me._max_length - me._selection_start - utf8.size(after);
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if( remaining != 0 )
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me._text ~= utf8.substr(text, 0, remaining);
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me._cursor = utf8.size(me._text);
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me._selection_start = me._cursor;
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me._selection_end = me._cursor;
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me._text ~= after;
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if( me._view != nil )
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me._view.setText(me, me._text);
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},
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paste: func(mode = nil)
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{
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me.insert(clipboard.getText(mode != nil ? mode : clipboard.CLIPBOARD));
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},
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# Remove selected text
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removeSelection: func()
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{
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if( me._selection_start == me._selection_end )
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return;
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me._text = utf8.substr(me._text, 0, me._selection_start)
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~ utf8.substr(me._text, me._selection_end);
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me._cursor = me._selection_start;
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me._selection_end = me._selection_start;
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if( me._view != nil )
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me._view.setText(me, me._text);
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},
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# Remove selection or if nothing is selected the character before the cursor
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backspace: func()
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{
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if( me._selection_start == me._selection_end )
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{
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if( me._selection_start == 0 )
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# Before first character...
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return;
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me._selection_start -= 1;
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}
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me.removeSelection();
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},
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# Remove selection or if nothing is selected the character after the cursor
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del: func()
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{
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if( me._selection_start == me._selection_end )
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{
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if( me._selection_end == utf8.size(me._text) )
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# After last character...
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return;
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me._selection_end += 1;
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}
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me.removeSelection();
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},
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# protected:
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_setView: func(view)
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{
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call(gui.Widget._setView, [view], me);
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var el = view._root;
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el.addEventListener("keypress", func (e) me.insert(e.key));
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el.addEventListener("keydown", func (e)
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{
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if( me._view == nil )
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return;
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if( e.key == "Backspace" )
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me.backspace();
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else if( e.key == "Delete" )
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me.del();
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else if( e.key == "Left" )
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me.moveCursor(me._cursor - 1);
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else if( e.key == "Right")
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me.moveCursor(me._cursor + 1);
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else if( e.key == "Home" )
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me.home();
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else if( e.key == "End" )
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me.end();
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else if( e.keyCode == `v` and e.ctrlKey )
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me.paste();
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});
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}
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};
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