0dd27daff4
The new WrapLabel is there to work around a deficiency in GTK, namely the fact that it is hard to make labels which are both resizable and wrappable. The code is a port from libview.
74 lines
2.9 KiB
Vala
74 lines
2.9 KiB
Vala
// Copyright (c) 2005 VMware, Inc.
|
|
|
|
// This is a translation of http://git.gnome.org/browse/meld/tree/meld/ui/wraplabel.py,
|
|
// which in turn is a translation of WrapLabel from libview.
|
|
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
// SOFTWARE.
|
|
|
|
// Python translation from wrapLabel.{cc|h} by Gian Mario Tagliaretti
|
|
// Vala translation from wraplabel.py by Zbigniew Jędrzejewski-Szmek
|
|
|
|
public class WrapLabel : Gtk.Label {
|
|
private int _wrap_width;
|
|
|
|
public WrapLabel(string? text = null) {
|
|
this._wrap_width = 0;
|
|
var layout = get_layout();
|
|
layout.set_wrap(Pango.WrapMode.WORD_CHAR);
|
|
if (text != null)
|
|
this.set_text(text);
|
|
this.set_alignment(0, 0);
|
|
}
|
|
|
|
public override void size_request(out Gtk.Requisition requisition) {
|
|
int width, height;
|
|
var layout = get_layout();
|
|
layout.get_pixel_size(out width, out height);
|
|
requisition.width = 0;
|
|
requisition.height = height;
|
|
}
|
|
|
|
public override void size_allocate(Gdk.Rectangle allocation) {
|
|
base.size_allocate (allocation);
|
|
this._set_wrap_width(allocation.width);
|
|
}
|
|
|
|
public new void set_text(string str) {
|
|
base.set_text(str);
|
|
this._set_wrap_width(this._wrap_width);
|
|
}
|
|
|
|
public new void set_markup(string str) {
|
|
base.set_markup(str);
|
|
this._set_wrap_width(this._wrap_width);
|
|
}
|
|
|
|
private void _set_wrap_width(int width) {
|
|
if (width == 0)
|
|
return;
|
|
|
|
var layout = get_layout();
|
|
layout.set_width(width * Pango.SCALE);
|
|
if (_wrap_width != width) {
|
|
this._wrap_width = width;
|
|
this.queue_resize();
|
|
}
|
|
}
|
|
}
|