150 lines
3.2 KiB
C#
150 lines
3.2 KiB
C#
// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// Copyright (c) 2007 Novell, Inc. (http://www.novell.com)
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//
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// Authors:
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// Jackson Harper (jackson@ximian.com)
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//
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using System;
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using System.IO;
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using System.Drawing;
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namespace System.Windows.Forms.RTF {
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internal class Picture {
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private Minor image_type;
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private Image image;
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private MemoryStream data;
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private float width = -1;
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private float height = -1;
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private readonly static float dpix;
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static Picture ()
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{
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dpix = TextRenderer.GetDpi ().Width;
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}
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public Picture ()
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{
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}
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public Minor ImageType {
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get { return image_type; }
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set { image_type = value; }
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}
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public MemoryStream Data {
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get {
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if (data == null)
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data = new MemoryStream ();
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return data;
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}
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}
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public float Width {
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get {
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float w = width;
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if (w == -1) {
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if (image == null)
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image = ToImage ();
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w = image.Width;
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}
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return w;
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}
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}
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public float Height {
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get {
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float h = height;
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if (h == -1) {
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if (image == null)
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image = ToImage ();
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h = image.Height;
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}
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return h;
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}
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}
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public SizeF Size {
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get {
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return new SizeF (Width, Height);
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}
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}
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public void SetWidthFromTwips (int twips)
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{
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width = (int) (((float) twips / 1440.0F) * dpix + 0.5F);
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}
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public void SetHeightFromTwips (int twips)
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{
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height = (int) (((float) twips / 1440.0F) * dpix + 0.5F);
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}
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//
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// Makes sure that we got enough information to actually use the image
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//
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public bool IsValid ()
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{
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if (data == null)
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return false;
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switch (image_type) {
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case Minor.PngBlip:
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case Minor.WinMetafile:
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break;
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default:
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return false;
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}
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return true;
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}
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public void DrawImage (Graphics dc, float x, float y, bool selected)
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{
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if (image == null)
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image = ToImage ();
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float height = this.height;
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float width = this.width;
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if (height == -1)
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height = image.Height;
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if (width == -1)
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width = image.Width;
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dc.DrawImage (image, x, y, width, height);
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}
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public Image ToImage ()
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{
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// Reset the data stream position to the beginning
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data.Position = 0;
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return Image.FromStream (data);
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}
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}
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}
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