mirror of
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71 lines
2.6 KiB
C#
71 lines
2.6 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2021 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on GitHub https://github.com/greenshot/greenshot
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System.ComponentModel;
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using System.Windows.Forms;
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using GreenshotPlugin.Controls;
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namespace Greenshot.Controls {
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/// <summary>
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/// A simple ToolStripDropDownButton implementing INotifyPropertyChanged for data binding.
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/// Also, when a DropDownItem is selected, the DropDownButton adopts its Tag and Image.
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/// The selected tag can be accessed via SelectedTag property.
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/// </summary>
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public class BindableToolStripDropDownButton : ToolStripDropDownButton, INotifyPropertyChanged, IGreenshotLanguageBindable {
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public event PropertyChangedEventHandler PropertyChanged;
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[Category("Greenshot"), DefaultValue(null), Description("Specifies key of the language file to use when displaying the text.")]
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public string LanguageKey {
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get;
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set;
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}
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public object SelectedTag {
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get { if(Tag==null && DropDownItems.Count>0) Tag=DropDownItems[0].Tag; return Tag; }
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set { AdoptFromTag(value); }
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}
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protected override void OnDropDownItemClicked(ToolStripItemClickedEventArgs e) {
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ToolStripItem clickedItem = e.ClickedItem;
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if(Tag == null || !Tag.Equals(clickedItem.Tag)) {
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Tag = clickedItem.Tag;
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Image = clickedItem.Image;
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PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("SelectedTag"));
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}
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base.OnDropDownItemClicked(e);
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}
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private void AdoptFromTag(object tag) {
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if(Tag == null || !Tag.Equals(tag)) {
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Tag = tag;
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foreach(ToolStripItem item in DropDownItems) {
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if(item.Tag != null && item.Tag.Equals(tag)) {
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Image = item.Image;
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break;
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}
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}
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Tag = tag;
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PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("SelectedTag"));
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}
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}
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}
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}
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