示例#1
0
        private void buttonAdd_Click(object sender, EventArgs e)
        {
            if (String.IsNullOrWhiteSpace(textBoxPath.Text))
            {
                MessageBox.Show("The path textbox must not be empty!", "Invalid path", MessageBoxButtons.OK, MessageBoxIcon.Error); // Show a message
                return;                                                                                                             // Return
            }
            string imgPath = Path.GetFullPath(textBoxPath.Text);

            if (!File.Exists(imgPath))                                                                                              // If the specified path does not exist,
            {
                MessageBox.Show("The specified image does not exist!", "Invalid path", MessageBoxButtons.OK, MessageBoxIcon.Error); // Show a message
                return;                                                                                                             // Return
            }

            ImageData image = new ImageData();

            image.path = imgPath; // Set the image's path
            SHA1       hasher   = null;
            FileStream stream   = null;
            string     sha1Hash = "";
            FileInfo   fileInf  = new FileInfo(image.path); // Set the file info

            try {
                hasher   = new SHA1Cng();                                                      // Create a new hasher
                stream   = new FileStream(image.path, FileMode.Open);                          // Create a new stream
                sha1Hash = BitConverter.ToString(hasher.ComputeHash(stream)).Replace("-", ""); // Compute the image's hash
                hasher.Clear();                                                                // Clear and dispose of the hasher
                stream.Close();                                                                // Close and dispose of the stream
            } catch (Exception ex) {
                MessageBox.Show(ex.Message + "\nInnerException:" + ex.InnerException + "\nSource:" + ex.Source + "\nTargetSite: " + ex.TargetSite, "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            image.sha1Hash = sha1Hash; // Set the SHA1 hash
            if (!EditMode)
            {
                for (int i = 0; i < ImageDataList.Images.Count; i++)
                {
                    ImageData otherImg = ImageDataList.Images [i];
                    if (otherImg.path == image.path)
                    {
                        MessageBox.Show("There is already an entry with the specified path in the database", "Duplicate image", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        return;
                    }
                    else if (otherImg.sha1Hash == image.sha1Hash)
                    {
                        MessageBox.Show("The specified image matches the SHA1 hash of another entry in the database", "Duplicate image", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        return;
                    }
                }
            }
            image.description = textBoxDescription.Text; // Set the description
            image.size        = fileInf.Length;          // Set the size in bytes
            int   w = 0, h = 0;
            Image img = null;

            try {
                img = Image.FromFile(image.path); // Load the image
                w   = img.Width; h = img.Height;  // Set the width and height
                img.Dispose();                    // Dispose of the image
            } catch (Exception ex) {
                MessageBox.Show(ex.Message + "\nInnerException:" + ex.InnerException + "\nSource:" + ex.Source + "\nTargetSite: " + ex.TargetSite, "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            image.width  = w; // Set the width
            image.height = h; // Set the height
            List <string> tags = new List <string> (), sources = new List <string> ();

            foreach (string tag in this.listBoxTags.Items)
            {
                if (tag.StartsWith("source:"))     // If the tag starts with "source:",
                {
                    sources.Add(tag.Remove(0, 7)); // Remove the "source:" from the tag and add it to the sources list
                }
                else // If not,
                {
                    tags.Add(tag);  // Add it to the tags list
                }
            }
            image.sources = sources.ToArray(); // Set the sources
            image.tags    = tags.ToArray();    // Set the tags

            if (EditMode)
            {
                for (int i = 0; i < ImageDataList.Images.Count; i++)
                {
                    if (ImageDataList.Images [i] == this._image || ImageDataList.Images [i].path == this.textBoxPath.Text)
                    {
                        ImageDataList.Images [i] = image;
                    }
                }
            }
            else
            {
                ImageDataList.Images.Add(image);
            }
            this.Close();
        }