searchdialog.cs

这是一个小型的相片管理器

			// 
			// cbDesc
			// 
			this.cbDesc.Checked = true;
			this.cbDesc.CheckState = System.Windows.Forms.CheckState.Checked;
			this.cbDesc.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.cbDesc.Location = new System.Drawing.Point(6, 42);
			this.cbDesc.Name = "cbDesc";
			this.cbDesc.Size = new System.Drawing.Size(176, 18);
			this.cbDesc.TabIndex = 1;
			this.cbDesc.Text = "Photo descriptions";
			// 
			// cbTitle
			// 
			this.cbTitle.Checked = true;
			this.cbTitle.CheckState = System.Windows.Forms.CheckState.Checked;
			this.cbTitle.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.cbTitle.Location = new System.Drawing.Point(6, 19);
			this.cbTitle.Name = "cbTitle";
			this.cbTitle.Size = new System.Drawing.Size(176, 18);
			this.cbTitle.TabIndex = 0;
			this.cbTitle.Text = "Photo titles";
			// 
			// lvResults
			// 
			this.lvResults.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
            this.colTitle,
            this.colAlbum,
            this.colTime});
			this.lvResults.FullRowSelect = true;
			this.lvResults.HideSelection = false;
			this.lvResults.Location = new System.Drawing.Point(310, 84);
			this.lvResults.MultiSelect = false;
			this.lvResults.Name = "lvResults";
			this.lvResults.Size = new System.Drawing.Size(242, 303);
			this.lvResults.TabIndex = 12;
			this.lvResults.View = System.Windows.Forms.View.Details;
			this.lvResults.SelectedIndexChanged += new System.EventHandler(this.lvResults_SelectedIndexChanged);
			this.lvResults.DoubleClick += new System.EventHandler(this.lvResults_DoubleClick);
			this.lvResults.MouseUp += new System.Windows.Forms.MouseEventHandler(this.lvResults_MouseUp);
			this.lvResults.MouseMove += new System.Windows.Forms.MouseEventHandler(this.lvResults_MouseMove);
			this.lvResults.KeyDown += new System.Windows.Forms.KeyEventHandler(this.lvResults_KeyDown);
			// 
			// colTitle
			// 
			this.colTitle.Text = "Title";
			this.colTitle.Width = 82;
			// 
			// colAlbum
			// 
			this.colAlbum.Text = "Album";
			this.colAlbum.Width = 78;
			// 
			// colTime
			// 
			this.colTime.Text = "Time taken";
			this.colTime.Width = 77;
			// 
			// tvAlbums
			// 
			this.tvAlbums.CheckBoxes = true;
			this.tvAlbums.Location = new System.Drawing.Point(12, 84);
			this.tvAlbums.Name = "tvAlbums";
			this.tvAlbums.Size = new System.Drawing.Size(188, 302);
			this.tvAlbums.TabIndex = 13;
			this.tvAlbums.MouseUp += new System.Windows.Forms.MouseEventHandler(this.tvAlbums_MouseUp);
			// 
			// contMenu
			// 
			this.contMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.miOpenPhoto,
            this.miOpenAlbum,
            this.miPrint,
            this.menuItem3,
            this.miPInfo});
			this.contMenu.Popup += new System.EventHandler(this.contMenu_Popup);
			// 
			// miOpenPhoto
			// 
			this.miOpenPhoto.Index = 0;
			this.miOpenPhoto.Text = "Open photo...";
			this.miOpenPhoto.Click += new System.EventHandler(this.miOpenPhoto_Click);
			// 
			// miOpenAlbum
			// 
			this.miOpenAlbum.Index = 1;
			this.miOpenAlbum.Text = "Open album";
			this.miOpenAlbum.Click += new System.EventHandler(this.miOpenAlbum_Click);
			// 
			// miPrint
			// 
			this.miPrint.Index = 2;
			this.miPrint.Text = "Print...";
			this.miPrint.Click += new System.EventHandler(this.miPrint_Click);
			// 
			// menuItem3
			// 
			this.menuItem3.Index = 3;
			this.menuItem3.Text = "-";
			// 
			// miPInfo
			// 
			this.miPInfo.Index = 4;
			this.miPInfo.Text = "Photo-Info";
			this.miPInfo.Click += new System.EventHandler(this.miPInfo_Click);
			// 
			// ttPhotoInfo
			// 
			this.ttPhotoInfo.AutoPopDelay = 5000;
			this.ttPhotoInfo.InitialDelay = 500;
			this.ttPhotoInfo.ReshowDelay = 100;
			// 
			// tToolTip
			// 
			this.tToolTip.Enabled = true;
			this.tToolTip.Tick += new System.EventHandler(this.tToolTip_Tick);
			// 
			// contMenuTv
			// 
			this.contMenuTv.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.miCheckAll,
            this.miUncheckAll});
			this.contMenuTv.Popup += new System.EventHandler(this.contMenuTv_Popup);
			// 
			// miCheckAll
			// 
			this.miCheckAll.Index = 0;
			this.miCheckAll.Text = "Check all";
			this.miCheckAll.Click += new System.EventHandler(this.miCheckAll_Click);
			// 
			// miUncheckAll
			// 
			this.miUncheckAll.Index = 1;
			this.miUncheckAll.Text = "Uncheck all";
			this.miUncheckAll.Click += new System.EventHandler(this.miUncheckAll_Click);
			// 
			// SearchDialog
			// 
			this.ClientSize = new System.Drawing.Size(564, 592);
			this.Controls.Add(this.tvAlbums);
			this.Controls.Add(this.lvResults);
			this.Controls.Add(this.gbWhat);
			this.Controls.Add(this.pbPreview);
			this.Controls.Add(this.tbSearchText);
			this.Controls.Add(this.lbEnterText);
			this.Controls.Add(this.pbAnim);
			this.Controls.Add(this.cbAllAlbs);
			this.Controls.Add(this.cbMatchCase);
			this.Controls.Add(this.bSearch);
			this.Controls.Add(this.lbPSelect);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
			this.MaximizeBox = false;
			this.MinimizeBox = false;
			this.Name = "SearchDialog";
			this.Text = "Search";
			this.Closed += new System.EventHandler(this.SearchDialog_FormClosed);
			this.gbWhat.ResumeLayout(false);
			this.ResumeLayout(false);
			this.PerformLayout();

		}
		#endregion

		private void cbAllAlbs_CheckedChanged(object sender, EventArgs e) {
			if (cbAllAlbs.Checked)
				tvAlbums.Enabled = false;
			else
				tvAlbums.Enabled = true;
		}

		private void bSearch_Click(object sender, EventArgs e) {
			if (!Searching) {
				if (tbSearchText.Text.Length == 0) 
					return;
				Search.SearchType sType = new Search.SearchType();
				sType.MatchCase = cbMatchCase.Checked;
				sType.Title = cbTitle.Checked;
				sType.Description = cbDesc.Checked;
				sType.TimeTaken = cbDesc.Checked;
				sType.Path = cbPath.Checked;

				Albums list = BuildAlbumsList();
				string[] keywords = GetKeywords();
				bSearch.Text = LsAbort;
				pbAnim.Visible = true;
				
				lvResults.Items.Clear();
				Search s = new Search(this, keywords, list, sType);
				s.ResultUpdate += new Search.SearchResultUpdate(s_ResultUpdate);
				Searching = true;
				s.ExecuteSearch();
				EndSearchNow();
			} else
				EndSearchNow();
		}

		void s_ResultUpdate(Search.SearchResult sr) {
			ListViewItem item = new ListViewItem(new string[] { sr.Photo.Title, sr.Album.AlbumName, sr.Photo.TimeTaken });
			item.Tag = sr;
			lvResults.Items.Add(item);
			lvResults.Invalidate();
		}

		private string[] GetKeywords() {
			string pattern = tbSearchText.Text;
			while (pattern[0] == '*')
				pattern = pattern.Remove(0, 1);
			int wcount = 1;
			foreach (char c in pattern) {
				if (c == '*')
					wcount++;
			}
			if (pattern[pattern.Length - 1] == '*')
				wcount--;
			string[] keywords = new string[wcount];
			int i, cutLength, lastPos = 0;
			wcount = 0;
			for (i = 0; i < pattern.Length; i++) {
				if (pattern[i] == '*') {
					cutLength = i - lastPos;
					if (cutLength > 0)
						keywords[wcount++] = pattern.Substring(lastPos, cutLength);
					lastPos = i + 1;
				}
			}
			if (keywords[0] == null)
				keywords[0] = pattern;
			wcount = 0;
			foreach (string s in keywords) {
				if (s != null)
					wcount++;
			}
			string[] keywordsFinal = new string[wcount];
			wcount = 0;
			for (i = 0; wcount < keywordsFinal.Length; i++) {
				if (keywords[i].Length > 0)
					keywordsFinal[wcount++] = keywords[i];
			}

			return keywordsFinal;
		}

		private Albums BuildAlbumsList() {
			if (cbAllAlbs.Checked)
				return Albs;
			else {
				Albums albs = new Albums();
				foreach (TreeNode n in tvAlbums.Nodes)
					AddAlbumsFromNode(albs, n);
				return albs;
			}
		}

		private void AddAlbumsFromNode(Albums albs, TreeNode node) {
			if (node.Checked)
				albs.Add(node.Tag as Album);
			foreach (TreeNode n in node.Nodes)
				AddAlbumsFromNode(albs, n);
		}

		private void tbSearchText_KeyUp(object sender, KeyEventArgs e) {
			if (e.KeyCode == Keys.Enter)
				this.bSearch_Click(null, null);
		}

		private void lvResults_SelectedIndexChanged(object sender, EventArgs e) {
			if (pbPreview.Image != null)
				pbPreview.Image.Dispose();
			if (lvResults.SelectedItems.Count > 0) {
				Search.SearchResult sr = (Search.SearchResult) lvResults.SelectedItems[0].Tag;
				Image img = Bitmap.FromFile(sr.Photo.Thumbnail);
				pbPreview.Image = img;
			}
		}

		private void SearchDialog_FormClosed(object sender, EventArgs e) {
			EndSearchNow();
			if (pbPreview.Image != null)
				pbPreview.Image.Dispose();
		}

		private void lvResults_MouseUp(object sender, MouseEventArgs e) {
			if (e.Button == MouseButtons.Right)
				contMenu.Show(lvResults, new Point(e.X, e.Y));
		}

		private void contMenu_Popup(object sender, EventArgs e) {
			bool enabled;
			if (lvResults.SelectedIndices.Count == 0)
				enabled = false;
			else
				enabled = true;
			miOpenAlbum.Enabled = enabled;
			miOpenPhoto.Enabled = enabled;
			miPInfo.Enabled = enabled;
			miPrint.Enabled = enabled;
		}

		private void miPrint_Click(object sender, EventArgs e) {
			Search.SearchResult sr = (Search.SearchResult) lvResults.SelectedItems[0].Tag;
			Photos ps = new Photos();
			ps.Add(sr.Photo);
			Printer p = new Printer(ps);
			System.Threading.Thread t = new System.Threading.Thread(new System.Threading.ThreadStart(p.Print));
			t.Start();
		}

		private void miOpenPhoto_Click(object sender, EventArgs e) {
			Search.SearchResult sr = (Search.SearchResult) lvResults.SelectedItems[0].Tag;
			PhotoEditor pe = new PhotoEditor(sr.Album.Photos, sr.Album.Photos.IndexOf(sr.Photo), PPane);
			pe.Show();
		}

		private void miOpenAlbum_Click(object sender, EventArgs e) {
			Search.SearchResult sr = (Search.SearchResult) lvResults.SelectedItems[0].Tag;
			AlbsPane.FireOpenAlbum(sr.Album);
		}

		private void miPInfo_Click(object sender, EventArgs e) {
			Search.SearchResult sr = (Search.SearchResult) lvResults.SelectedItems[0].Tag;
			ImageInfoDialog iid = new ImageInfoDialog(sr.Album, sr.Album.Photos.IndexOf(sr.Photo));
			iid.ShowDialog();
		}

		private void lvResults_KeyDown(object sender, KeyEventArgs e) {
			if (e.KeyCode == Keys.Enter) {
				if (lvResults.SelectedItems.Count > 0)
					miOpenPhoto_Click(null, null);
			}
		}

		private void lvResults_DoubleClick(object sender, EventArgs e) {
			if (lvResults.SelectedItems.Count > 0)
				miOpenPhoto_Click(null, null);
		}

		private void lvResults_MouseMove(object sender, MouseEventArgs e) {
			MousePos.X = e.X;
			MousePos.Y = e.Y;
		}

		private void tToolTip_Tick(object sender, EventArgs e) {
			ListViewItem item = lvResults.GetItemAt(MousePos.X, MousePos.Y);
			if (item != null) {
				int itemIndex = item.Index;
				if (itemIndex != CurrItemIndex) {
					string information;
					Search.SearchResult sr = (Search.SearchResult) lvResults.Items[itemIndex].Tag;
					PhotoInfo pi = new PhotoInfo(sr.Album, sr.Album.Photos.IndexOf(sr.Photo));
					information = String.Concat(pi.PhotoTitle, '\n', pi.ImageType, '\n', pi.FileSizeStr, '\n', pi.ImageWidth.ToString(), " x ", pi.ImageHeight.ToString(), ' ', LsPixels, '\n', pi.TimeTaken);

					ttPhotoInfo.SetToolTip(lvResults, information);
					CurrItemIndex = itemIndex;
				}
			} else {
				CurrItemIndex = -1;
				ttPhotoInfo.RemoveAll();
			}
		}

		private void miCheckAll_Click(object sender, EventArgs e) {
			foreach (TreeNode n in tvAlbums.Nodes)
				ChangeCheckedState(n, true);
		}

		private void miUncheckAll_Click(object sender, EventArgs e) {
			foreach (TreeNode n in tvAlbums.Nodes)
				ChangeCheckedState(n, false);
		}

		private void tvAlbums_MouseUp(object sender, MouseEventArgs e) {
			if (e.Button == MouseButtons.Right)
				contMenuTv.Show(tvAlbums, new Point(e.X, e.Y));
		}

		private void contMenuTv_Popup(object sender, EventArgs e) {
			bool enabled;
			if (tvAlbums.Nodes.Count == 0)
				enabled = false;
			else
				enabled = true;
			miCheckAll.Enabled = enabled;
			miUncheckAll.Enabled = enabled;
		}
	}
}