mirror of
https://github.com/greenshot/greenshot.git
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122 lines
4.5 KiB
C#
122 lines
4.5 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2016 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;
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using System.ComponentModel;
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using System.Drawing;
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using System.Windows.Forms;
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namespace Greenshot.Controls {
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/// <summary>
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/// ToolStripComboBox containing installed font families,
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/// implementing INotifyPropertyChanged for data binding
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/// </summary>
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public class FontFamilyComboBox : ToolStripComboBox, INotifyPropertyChanged {
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public event PropertyChangedEventHandler PropertyChanged;
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public FontFamily FontFamily {
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get { return (FontFamily)SelectedItem; }
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set {
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if (!SelectedItem.Equals(value)) {
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SelectedItem = value;
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}
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}
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}
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public FontFamilyComboBox()
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{
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if (ComboBox != null)
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{
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ComboBox.DataSource = FontFamily.Families;
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ComboBox.DisplayMember = "Name";
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SelectedIndexChanged += BindableToolStripComboBox_SelectedIndexChanged;
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ComboBox.DrawMode = DrawMode.OwnerDrawFixed;
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ComboBox.DrawItem += ComboBox_DrawItem;
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}
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}
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private void ComboBox_DrawItem(object sender, DrawItemEventArgs e) {
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// DrawBackground handles drawing the background (i.e,. hot-tracked v. not)
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// It uses the system colors (Bluish, and and white, by default)
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// same as calling e.Graphics.FillRectangle ( SystemBrushes.Highlight, e.Bounds );
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e.DrawBackground();
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if (e.Index > -1) {
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FontFamily fontFamily = Items[e.Index] as FontFamily;
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FontStyle fontStyle = FontStyle.Regular;
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if (fontFamily != null && !fontFamily.IsStyleAvailable(FontStyle.Regular)) {
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if (fontFamily.IsStyleAvailable(FontStyle.Bold)) {
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fontStyle = FontStyle.Bold;
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} else if (fontFamily.IsStyleAvailable(FontStyle.Italic)) {
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fontStyle = FontStyle.Italic;
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} else if (fontFamily.IsStyleAvailable(FontStyle.Strikeout)) {
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fontStyle = FontStyle.Strikeout;
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} else if (fontFamily.IsStyleAvailable(FontStyle.Underline)) {
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fontStyle = FontStyle.Underline;
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}
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}
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try {
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if (fontFamily != null)
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{
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DrawText(e.Graphics, fontFamily, fontStyle, e.Bounds, fontFamily.Name);
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}
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} catch {
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// If the drawing failed, BUG-1770 seems to have a weird case that causes: Font 'Lucida Sans Typewriter' does not support style 'Regular'
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if (fontFamily != null)
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{
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DrawText(e.Graphics, FontFamily.GenericSansSerif, FontStyle.Regular, e.Bounds, fontFamily.Name);
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}
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}
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}
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// Uncomment this if you actually like the way the focus rectangle looks
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//e.DrawFocusRectangle ();
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}
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/// <summary>
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/// Helper method to draw the string
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/// </summary>
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/// <param name="graphics"></param>
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/// <param name="fontFamily"></param>
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/// <param name="fontStyle"></param>
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/// <param name="bounds"></param>
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/// <param name="text"></param>
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private void DrawText(Graphics graphics, FontFamily fontFamily, FontStyle fontStyle, Rectangle bounds, string text) {
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using (Font font = new Font(fontFamily, Font.Size + 5, fontStyle, GraphicsUnit.Pixel)) {
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// Make sure the text is visible by centering it in the line
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using (StringFormat stringFormat = new StringFormat()) {
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stringFormat.LineAlignment = StringAlignment.Center;
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graphics.DrawString(text, font, Brushes.Black, bounds, stringFormat);
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}
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}
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}
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private void BindableToolStripComboBox_SelectedIndexChanged(object sender, EventArgs e) {
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if (PropertyChanged != null) {
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PropertyChanged(this, new PropertyChangedEventArgs("Text"));
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PropertyChanged(this, new PropertyChangedEventArgs("FontFamily"));
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PropertyChanged(this, new PropertyChangedEventArgs("SelectedIndex"));
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PropertyChanged(this, new PropertyChangedEventArgs("SelectedItem"));
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}
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}
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}
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}
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