643 lines
15 KiB
C#
643 lines
15 KiB
C#
using GLib;
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using Gtk;
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using System;
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using System.Collections;
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class CustomNotebookTest {
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static CustomNotebook cn;
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static Notebook nb;
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static int tabCount;
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public static int Main (string[] args)
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{
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Application.Init ();
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Window win = new Window ("Custom Notebook Test");
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win.DeleteEvent += new DeleteEventHandler (OnQuit);
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VBox box = new VBox (false, 5);
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Button addButton = new Button ("Add Tab");
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//addButton.Clicked += OnAddTab;
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Button rmButton = new Button ("Remove Tab");
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rmButton.Clicked += OnRemoveTab;
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box.PackStart (addButton, false, false, 0);
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box.PackStart (rmButton, false, false, 0);
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HPaned paned = new HPaned ();
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cn = new CustomNotebook ();
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cn.BorderWidth = 5;
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cn.Scrollable = false;
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Gdk.Pixbuf icon = cn.RenderIcon (Stock.Execute, IconSize.Menu, "");
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//for (tabCount = 0; tabCount < 3; tabCount++)
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cn.AppendPage (new Label ("Custom Notebook"), Stock.Execute, "extended tab" + tabCount);
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cn.AppendPage (new Label ("Custom Notebook"), Stock.Execute, "tab" + (tabCount + 1));
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cn.AppendPage (new Label ("Custom Notebook"), Stock.Execute, "extended tab" + (tabCount + 2));
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paned.Pack1 (cn, true, false);
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nb = new Notebook ();
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nb.BorderWidth = 5;
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nb.Scrollable = false;
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for (tabCount = 0; tabCount < 3; tabCount++)
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nb.AppendPage (new Label ("Regular Notebook"), new Label ("tab" + tabCount));
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paned.Pack2 (nb, true, false);
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box.PackEnd (paned, true, true, 0);
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win.Add (box);
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win.ShowAll ();
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Application.Run ();
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return 0;
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}
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/*static void OnAddTab (object sender, EventArgs args)
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{
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cn.AppendPage (new Label ("Custom Notebook"), Stock.Execute, "tab" + tabCount + 1);
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cn.ShowAll ();
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nb.AppendPage (new Label ("Regular Notebook"), new Label ("tab" + tabCount + 1));
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nb.ShowAll ();
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tabCount++;
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}*/
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static void OnRemoveTab (object sender, EventArgs args)
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{
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}
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static void OnQuit (object sender, DeleteEventArgs args)
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{
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Application.Quit ();
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}
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}
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class CustomNotebookPage {
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private Gdk.Rectangle allocation;
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private Widget child = null;
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private Gdk.Pixbuf icon = null;
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private bool ellipsize = false;
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private string label = null;
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private Pango.Layout layout = null;
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private int layoutWidth = -1;
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private int layoutHeight = -1;
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private Requisition requisition;
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private string stockid = null;
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public Gdk.Rectangle Allocation {
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get {
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return allocation;
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}
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set {
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allocation = value;
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}
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}
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public Widget Child {
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get {
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return child;
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}
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set {
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child = value;
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}
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}
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public bool Ellipsize {
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get {
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return ellipsize;
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}
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set {
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ellipsize = value;
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}
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}
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public Gdk.Pixbuf Icon {
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get {
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if (icon == null && StockId != null) {
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icon = child.RenderIcon (StockId, IconSize.Menu, "");
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}
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return icon;
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}
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set {
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icon = value;
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}
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}
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public string Label {
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get {
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return label;
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}
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set {
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label = value;
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layout = null;
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layoutWidth = -1;
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layoutHeight = -1;
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}
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}
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public Pango.Layout Layout {
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get {
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if (layout == null && Label != null) {
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layout = child.CreatePangoLayout (label);
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layout.GetPixelSize (out layoutWidth, out layoutHeight);
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}
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return layout;
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}
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}
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public int LayoutWidth {
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get {
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if (Layout != null)
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return layoutWidth;
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else
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return -1;
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}
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}
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public int LayoutHeight {
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get {
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if (Layout != null)
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return layoutHeight;
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else
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return -1;
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}
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}
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public Requisition Requisition {
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get {
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return requisition;
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}
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set {
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requisition = value;
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}
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}
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public string StockId {
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get {
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return stockid;
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}
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set {
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stockid = value;
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icon = null;
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}
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}
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public CustomNotebookPage (Widget child, string label)
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{
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Child = child;
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Label = label;
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}
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public CustomNotebookPage (Widget child, Gdk.Pixbuf icon, string label)
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{
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Child = child;
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Icon = icon;
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Label = label;
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}
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public CustomNotebookPage (Widget child, string stockid, string label)
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{
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Child = child;
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Label = label;
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StockId = stockid;
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}
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}
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class CustomNotebook : Container {
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private readonly int tabCurvature = 1;
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private readonly int tabOverlap = 2;
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private ArrayList pages = new ArrayList ();
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private bool closable;
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private bool scrollable;
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private PositionType tabPosition;
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private int tabHBorder;
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private int tabVBorder;
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public bool Closable {
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get {
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return closable;
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}
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set {
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closable = value;
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}
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}
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private CustomNotebookPage CurrentPage {
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get {
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return (CustomNotebookPage)pages[0];
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}
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}
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public bool Scrollable {
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get {
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return scrollable;
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}
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set {
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scrollable = value;
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}
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}
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public Gtk.PositionType TabPosition {
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get {
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return tabPosition;
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}
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set {
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switch (value) {
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case PositionType.Left:
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case PositionType.Right:
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Console.WriteLine ("PositionType.Left or Right is not supported by this widget");
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break;
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default:
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tabPosition = value;
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break;
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}
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}
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}
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/*static CustomNotebook ()
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{
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Container.OverrideForall (CustomNotebook.GType);
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}*/
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public CustomNotebook () : base ()
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{
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closable = true;
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scrollable = false;
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tabPosition = PositionType.Top;
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tabHBorder = 2;
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tabVBorder = 2;
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Flags |= (int)WidgetFlags.NoWindow;
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}
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public void AppendPage (Widget child, string label)
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{
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pages.Add (new CustomNotebookPage (child, label));
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child.Parent = this;
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}
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public void AppendPage (Widget child, string stockid, string label)
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{
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pages.Add (new CustomNotebookPage (child, stockid, label));
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child.Parent = this;
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}
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public void AppendPage (Widget child, Gdk.Pixbuf icon, string label)
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{
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pages.Add (new CustomNotebookPage (child, icon, label));
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child.Parent = this;
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}
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private void EllipsizeLayout (Pango.Layout layout, int width)
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{
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if (width <= 0) {
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layout.SetText ("");
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return;
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}
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int layoutWidth, layoutHeight;
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layout.GetPixelSize (out layoutWidth, out layoutHeight);
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if (layoutWidth <= width)
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return;
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// Calculate ellipsis width.
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Pango.Layout ell = layout.Copy ();
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ell.SetText ("...");
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int ellWidth, ellHeight;
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ell.GetPixelSize (out ellWidth, out ellHeight);
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if (width < ellWidth) {
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// Not even ellipsis fits, so hide text.
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layout.SetText ("");
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return;
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}
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// Shrink total available width by the width of the ellipsis.
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width -= ellWidth;
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string text = layout.Text;
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Console.WriteLine ("layout text = {0}", text);
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Console.WriteLine ("line count: {0}", layout.LineCount);
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Pango.LayoutLine line = layout.Lines[0];
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//Console.WriteLine ("layout = {0}", line.layout.Text);
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//Console.WriteLine ("line = {0}", line.Length);
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int idx = 0, trailing = 0;
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if (line.XToIndex (width * 1024, out idx, out trailing)) {
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text = text.Substring (0, idx - 1);
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text += "...";
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layout.SetText (text);
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}
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}
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protected override bool OnExposeEvent (Gdk.EventExpose args)
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{
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int x, y, width, height, gapX, gapWidth;
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int bw = (int)BorderWidth;
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x = Allocation.X + bw;
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y = Allocation.Y + bw;
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width = Allocation.Width - 2 * bw;
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height = Allocation.Height - 2 * bw;
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switch (TabPosition) {
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case PositionType.Top:
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y += CurrentPage.Allocation.Height;
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height -= CurrentPage.Allocation.Height;
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break;
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case PositionType.Bottom:
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height -= CurrentPage.Allocation.Height;
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break;
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case PositionType.Left:
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case PositionType.Right:
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break;
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}
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gapX = gapWidth = 0;
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switch (TabPosition) {
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case PositionType.Top:
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case PositionType.Bottom:
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gapX = CurrentPage.Allocation.X - Allocation.X - bw;
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gapWidth = CurrentPage.Allocation.Width;
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break;
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case PositionType.Left:
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case PositionType.Right:
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break;
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}
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Style.PaintBoxGap (Style, GdkWindow, StateType.Normal,
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ShadowType.Out, args.Area, this,
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"notebook", x, y, width, height,
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TabPosition, gapX, gapWidth);
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for (int i = pages.Count - 1; i >= 0; i--) {
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CustomNotebookPage page = (CustomNotebookPage)pages[i];
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Gdk.Rectangle pageAlloc = page.Allocation;
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StateType state = page == CurrentPage ? StateType.Normal : StateType.Active;
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Style.PaintExtension (Style, GdkWindow, state,
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ShadowType.Out, args.Area, this,
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"tab", pageAlloc.X, pageAlloc.Y,
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pageAlloc.Width, pageAlloc.Height,
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PositionType.Bottom);
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// FIXME: Only add YThickness when TabPosition = Top;
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y = pageAlloc.Y + Style.YThickness + FocusLineWidth + tabVBorder;
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height = pageAlloc.Height - Style.YThickness - 2 * (tabVBorder + FocusLineWidth);
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if (page.Icon != null) {
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x = pageAlloc.X + (pageAlloc.Width + 1 -
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page.Icon.Width -
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page.LayoutWidth) / 2;
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int iconY = y + (height - page.Icon.Height) / 2;
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GdkWindow.DrawPixbuf (Style.BackgroundGC (State),
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page.Icon, 0, 0, x, iconY,
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page.Icon.Width,
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page.Icon.Height,
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Gdk.RgbDither.None, 0, 0);
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x += page.Icon.Width + 1;
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} else {
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x = pageAlloc.X + (pageAlloc.Width - page.LayoutWidth) / 2;
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}
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y += (height - page.LayoutHeight) / 2;
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if (page.Ellipsize) {
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width = pageAlloc.Width - (page.Icon.Width + 1);
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Pango.Layout layout = page.Layout;
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EllipsizeLayout (layout, width);
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Console.WriteLine ("ellLayout = {0}", layout.Text);
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Style.PaintLayout (Style, GdkWindow, State,
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true, args.Area, this, null,
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x, y, layout);
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} else {
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Style.PaintLayout (Style, GdkWindow, State,
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true, args.Area, this, null,
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x, y, page.Layout);
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}
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}
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return base.OnExposeEvent (args);
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}
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protected override void ForAll (bool include_internals, CallbackInvoker invoker)
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{
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foreach (CustomNotebookPage page in pages) {
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invoker.Invoke (page.Child);
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}
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}
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protected override void OnRealized ()
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{
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Flags |= (int)WidgetFlags.Realized;
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GdkWindow = ParentWindow;
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Style = Style.Attach (GdkWindow);
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}
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protected override void OnSizeAllocated (Gdk.Rectangle allocation)
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{
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base.OnSizeAllocated (allocation);
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if (pages.Count == 0)
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return;
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int bw = (int)BorderWidth;
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Gdk.Rectangle childAlloc;
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childAlloc.X = allocation.X + bw + Style.XThickness;
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childAlloc.Y = allocation.Y + bw + Style.YThickness;
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childAlloc.Width = Math.Max (1, allocation.Width - 2 * bw -
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2 * Style.XThickness);
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childAlloc.Height = Math.Max (1, allocation.Height - 2 * bw -
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2 * Style.YThickness);
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switch (TabPosition) {
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case PositionType.Top:
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childAlloc.Y += CurrentPage.Requisition.Height;
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childAlloc.Height = Math.Max (1, childAlloc.Height -
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CurrentPage.Requisition.Height);
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break;
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case PositionType.Bottom:
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childAlloc.Height = Math.Max (1, childAlloc.Height -
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CurrentPage.Requisition.Height);
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break;
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case PositionType.Left:
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case PositionType.Right:
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break;
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}
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foreach (CustomNotebookPage page in pages) {
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page.Child.SizeAllocate (childAlloc);
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}
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// gtk_notebook_pages_allocate.
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childAlloc.X = allocation.X + bw;
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childAlloc.Y = allocation.Y + bw;
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switch (TabPosition) {
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case PositionType.Top:
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childAlloc.Height = CurrentPage.Requisition.Height;
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break;
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case PositionType.Bottom:
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childAlloc.Y = (allocation.Y + allocation.Height -
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CurrentPage.Requisition.Height - bw);
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childAlloc.Height = CurrentPage.Requisition.Height;
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break;
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case PositionType.Left:
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case PositionType.Right:
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break;
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}
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bool ellipsize = false;
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int avgWidth = 0;
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int tabX = childAlloc.X;
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if (!scrollable) {
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int tabWidth = 0;
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foreach (CustomNotebookPage page in pages) {
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tabWidth += page.Requisition.Width;
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}
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Console.WriteLine ("total tabwidth: {0}", tabWidth);
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Console.WriteLine ("allocated width: {0}", childAlloc.Width);
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if (tabWidth > childAlloc.Width) {
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ellipsize = true;
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avgWidth = childAlloc.Width / pages.Count;
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tabWidth = childAlloc.Width;
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Console.WriteLine ("average tabwidth: {0}", avgWidth);
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int count = pages.Count;
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foreach (CustomNotebookPage page in pages) {
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Gdk.Rectangle pageAlloc = page.Allocation;
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if (page.Requisition.Width <= avgWidth) {
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count--;
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tabWidth -= page.Requisition.Width;
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}
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}
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Console.WriteLine ("number of pages exceeding that: {0}", count);
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Console.WriteLine ("space per page available: {0}", tabWidth / count);
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// FIXME: check for TabPosition.
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int maxWidth = tabWidth / count;
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foreach (CustomNotebookPage page in pages) {
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Gdk.Rectangle pageAlloc = page.Allocation;
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pageAlloc.X = tabX;
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pageAlloc.Y = childAlloc.Y;
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if (page.Requisition.Width > maxWidth) {
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pageAlloc.Width = maxWidth + tabOverlap;
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page.Ellipsize = true;
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} else {
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pageAlloc.Width = page.Requisition.Width + tabOverlap;
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}
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pageAlloc.Height = childAlloc.Height;
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tabX += pageAlloc.Width - tabOverlap;
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if (page != CurrentPage) {
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pageAlloc.Y += Style.YThickness;
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pageAlloc.Height -= Style.YThickness;
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}
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page.Allocation = pageAlloc;
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}
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}
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} else {
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switch (TabPosition) {
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case PositionType.Top:
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case PositionType.Bottom:
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foreach (CustomNotebookPage page in pages) {
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Gdk.Rectangle pageAlloc = page.Allocation;
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pageAlloc.X = tabX;
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pageAlloc.Y = childAlloc.Y;
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pageAlloc.Width = page.Requisition.Width + tabOverlap;
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pageAlloc.Height = childAlloc.Height;
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tabX += pageAlloc.Width - tabOverlap;
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if (page != CurrentPage) {
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pageAlloc.Y += Style.YThickness;
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pageAlloc.Height -= Style.YThickness;
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}
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page.Allocation = pageAlloc;
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}
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break;
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case PositionType.Left:
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case PositionType.Right:
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break;
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}
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}
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}
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protected override void OnSizeRequested (ref Requisition requisition)
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{
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requisition.Width = requisition.Height = 0;
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foreach (CustomNotebookPage page in pages) {
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if (!page.Child.Visible)
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continue;
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Requisition childReq = page.Child.SizeRequest ();
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requisition.Width = Math.Max (requisition.Width, childReq.Width);
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requisition.Height = Math.Max (requisition.Height, childReq.Height);
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}
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requisition.Width += 2 * Style.XThickness;
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requisition.Height += 2 * Style.YThickness;
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int tabWidth = 0;
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int tabHeight = 0;
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int tabMax = 0;
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int padding;
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foreach (CustomNotebookPage page in pages) {
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Requisition pageReq;
|
|
if (page.Icon != null) {
|
|
pageReq.Width = page.Icon.Width + page.LayoutWidth +
|
|
Style.XThickness * 2;
|
|
pageReq.Height = Math.Max (page.Icon.Height, page.LayoutHeight) +
|
|
Style.YThickness * 2;
|
|
} else {
|
|
pageReq.Width = page.LayoutWidth + Style.XThickness * 2;
|
|
pageReq.Height = page.LayoutHeight + Style.YThickness * 2;
|
|
}
|
|
|
|
switch (TabPosition) {
|
|
case PositionType.Top:
|
|
case PositionType.Bottom:
|
|
pageReq.Height += (tabVBorder + FocusLineWidth) * 2;
|
|
tabHeight = Math.Max (tabHeight, pageReq.Height);
|
|
tabMax = Math.Max (tabMax, pageReq.Width);
|
|
break;
|
|
case PositionType.Left:
|
|
case PositionType.Right:
|
|
break;
|
|
}
|
|
|
|
page.Requisition = pageReq;
|
|
}
|
|
|
|
switch (TabPosition) {
|
|
case PositionType.Top:
|
|
case PositionType.Bottom:
|
|
padding = 2 * (tabCurvature + FocusLineWidth
|
|
+ tabHBorder) - tabOverlap;
|
|
tabMax += padding;
|
|
|
|
Requisition pageReq;
|
|
foreach (CustomNotebookPage page in pages) {
|
|
pageReq = page.Requisition;
|
|
pageReq.Width += padding;
|
|
tabWidth += pageReq.Width;
|
|
pageReq.Height = tabHeight;
|
|
page.Requisition = pageReq;
|
|
}
|
|
|
|
/*if (!Scrollable)
|
|
requisition.Width = Math.Max (requisition.Width,
|
|
tabWidth + tabOverlap);*/
|
|
requisition.Height += tabHeight;
|
|
break;
|
|
case PositionType.Left:
|
|
case PositionType.Right:
|
|
break;
|
|
}
|
|
|
|
requisition.Width += (int)BorderWidth * 2;
|
|
requisition.Height += (int)BorderWidth * 2;
|
|
}
|
|
}
|