1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
|
using System;
using System.Collections;
using Gtk;
using Gdk;
using Mono.Unix;
namespace Stetic
{
public class PropertyTree: Gtk.ScrolledWindow
{
Gtk.TreeStore store;
InternalTree tree;
TreeViewColumn editorColumn;
Hashtable propertyRows;
Hashtable sensitives, invisibles;
ArrayList expandStatus = new ArrayList ();
public PropertyTree ()
{
propertyRows = new Hashtable ();
sensitives = new Hashtable ();
invisibles = new Hashtable ();
store = new TreeStore (typeof (string), typeof(PropertyDescriptor), typeof(bool), typeof(InstanceData));
tree = new InternalTree (this, store);
CellRendererText crt;
TreeViewColumn col;
col = new TreeViewColumn ();
col.Title = Catalog.GetString ("Property");
crt = new CellRendererPropertyGroup (tree);
col.PackStart (crt, true);
col.SetCellDataFunc (crt, new TreeCellDataFunc (GroupData));
col.Resizable = true;
col.Expand = false;
col.Sizing = TreeViewColumnSizing.Fixed;
col.FixedWidth = 150;
tree.AppendColumn (col);
editorColumn = new TreeViewColumn ();
editorColumn.Title = Catalog.GetString ("Value");
CellRendererProperty crp = new CellRendererProperty (tree);
editorColumn.PackStart (crp, true);
editorColumn.SetCellDataFunc (crp, new TreeCellDataFunc (PropertyData));
editorColumn.Sizing = TreeViewColumnSizing.Fixed;
editorColumn.Resizable = false;
editorColumn.Expand = true;
tree.AppendColumn (editorColumn);
tree.HeadersVisible = false;
this.ShadowType = Gtk.ShadowType.In;
this.HscrollbarPolicy = Gtk.PolicyType.Never;
Add (tree);
ShowAll ();
tree.Selection.Changed += OnSelectionChanged;
}
public void AddProperties (ItemGroupCollection itemGroups, object instance, string targetGtkVersion)
{
foreach (ItemGroup igroup in itemGroups)
AddGroup (igroup, instance, targetGtkVersion);
}
public void SaveStatus ()
{
expandStatus.Clear ();
TreeIter iter;
if (!tree.Model.GetIterFirst (out iter))
return;
do {
if (tree.GetRowExpanded (tree.Model.GetPath (iter))) {
expandStatus.Add (tree.Model.GetValue (iter, 0));
}
} while (tree.Model.IterNext (ref iter));
}
public void RestoreStatus ()
{
TreeIter iter;
if (!tree.Model.GetIterFirst (out iter))
return;
// If the tree only has one group, show it always expanded
TreeIter iter2 = iter;
if (!tree.Model.IterNext (ref iter2)) {
tree.ExpandRow (tree.Model.GetPath (iter), true);
return;
}
do {
object grp = tree.Model.GetValue (iter, 0);
if (expandStatus.Contains (grp))
tree.ExpandRow (tree.Model.GetPath (iter), true);
} while (tree.Model.IterNext (ref iter));
}
public virtual void Clear ()
{
store.Clear ();
propertyRows.Clear ();
sensitives.Clear ();
invisibles.Clear ();
}
public virtual void Update ()
{
// Just repaint the cells
QueueDraw ();
}
public void AddGroup (ItemGroup igroup, object instance, string targetGtkVersion)
{
ArrayList props = new ArrayList ();
foreach (ItemDescriptor item in igroup) {
if (item.IsInternal)
continue;
if (item is PropertyDescriptor && item.SupportsGtkVersion (targetGtkVersion))
props.Add (item);
}
if (props.Count == 0)
return;
InstanceData idata = new InstanceData (instance);
TreeIter iter = store.AppendValues (igroup.Label, null, true, idata);
foreach (PropertyDescriptor item in props)
AppendProperty (iter, (PropertyDescriptor)item, idata);
}
protected void AppendProperty (PropertyDescriptor prop, object instance)
{
AppendProperty (TreeIter.Zero, prop, new InstanceData (instance));
}
protected void AppendProperty (TreeIter piter, PropertyDescriptor prop, object instance)
{
AppendProperty (piter, prop, new InstanceData (instance));
}
void AppendProperty (TreeIter piter, PropertyDescriptor prop, InstanceData idata)
{
TreeIter iter;
if (piter.Equals (TreeIter.Zero))
iter = store.AppendValues (prop.Label, prop, false, idata);
else
iter = store.AppendValues (piter, prop.Label, prop, false, idata);
if (prop.HasDependencies)
sensitives[prop] = prop;
if (prop.HasVisibility)
invisibles[prop] = prop;
propertyRows [prop] = store.GetStringFromIter (iter);
}
protected virtual void OnObjectChanged ()
{
}
void OnSelectionChanged (object s, EventArgs a)
{
TreePath[] rows = tree.Selection.GetSelectedRows ();
if (!tree.dragging && rows != null && rows.Length > 0) {
tree.SetCursor (rows[0], editorColumn, true);
}
}
internal void NotifyChanged ()
{
OnObjectChanged ();
}
void PropertyData (Gtk.TreeViewColumn tree_column, Gtk.CellRenderer cell, Gtk.TreeModel model, Gtk.TreeIter iter)
{
CellRendererProperty rc = (CellRendererProperty) cell;
bool group = (bool) model.GetValue (iter, 2);
if (group) {
rc.SetData (null, null, null);
} else {
PropertyDescriptor prop = (PropertyDescriptor) model.GetValue (iter, 1);
PropertyEditorCell propCell = PropertyEditorCell.GetPropertyCell (prop);
InstanceData idata = (InstanceData) model.GetValue (iter, 3);
propCell.Initialize (tree, prop, idata.Instance);
rc.SetData (idata.Instance, prop, propCell);
}
}
void GroupData (Gtk.TreeViewColumn tree_column, Gtk.CellRenderer cell, Gtk.TreeModel model, Gtk.TreeIter iter)
{
CellRendererPropertyGroup rc = (CellRendererPropertyGroup) cell;
rc.IsGroup = (bool) model.GetValue (iter, 2);
rc.Text = (string) model.GetValue (iter, 0);
PropertyDescriptor prop = (PropertyDescriptor) model.GetValue (iter, 1);
if (prop != null) {
InstanceData idata = (InstanceData) model.GetValue (iter, 3);
rc.SensitiveProperty = prop.EnabledFor (idata.Instance) && prop.VisibleFor (idata.Instance);
} else
rc.SensitiveProperty = true;
}
}
class InternalTree: TreeView
{
internal ArrayList Groups = new ArrayList ();
Pango.Layout layout;
bool editing;
PropertyTree tree;
internal bool dragging;
int dragPos;
Gdk.Cursor resizeCursor = new Gdk.Cursor (CursorType.SbHDoubleArrow);
public InternalTree (PropertyTree tree, TreeModel model): base (model)
{
this.tree = tree;
layout = new Pango.Layout (this.PangoContext);
layout.Wrap = Pango.WrapMode.Char;
Pango.FontDescription des = this.Style.FontDescription.Copy();
des.Size = 10 * (int) Pango.Scale.PangoScale;
layout.FontDescription = des;
}
public bool Editing {
get { return editing; }
set { editing = value; Update (); tree.NotifyChanged (); }
}
protected override bool OnExposeEvent (Gdk.EventExpose e)
{
Groups.Clear ();
bool res = base.OnExposeEvent (e);
foreach (TreeGroup grp in Groups) {
layout.SetMarkup ("<b>" + GLib.Markup.EscapeText (grp.Group) + "</b>");
e.Window.DrawLayout (this.Style.TextGC (grp.State), grp.X, grp.Y, layout);
}
return res;
}
protected override bool OnMotionNotifyEvent (EventMotion evnt)
{
if (dragging) {
int nw = (int)(evnt.X) + dragPos;
if (nw <= 40) nw = 40;
GLib.Idle.Add (delegate {
Columns[0].FixedWidth = nw;
return false;
});
} else {
int w = Columns[0].Width;
if (Math.Abs (w - evnt.X) < 5)
this.GdkWindow.Cursor = resizeCursor;
else
this.GdkWindow.Cursor = null;
}
return base.OnMotionNotifyEvent (evnt);
}
protected override bool OnButtonPressEvent (EventButton evnt)
{
int w = Columns[0].Width;
if (Math.Abs (w - evnt.X) < 5) {
TreePath[] rows = Selection.GetSelectedRows ();
if (rows != null && rows.Length > 0)
SetCursor (rows[0], Columns[0], false);
dragging = true;
dragPos = w - (int) evnt.X;
this.GdkWindow.Cursor = resizeCursor;
}
return base.OnButtonPressEvent (evnt);
}
protected override bool OnButtonReleaseEvent (EventButton evnt)
{
if (dragging) {
this.GdkWindow.Cursor = null;
dragging = false;
}
return base.OnButtonReleaseEvent (evnt);
}
public virtual void Update ()
{
}
protected override void OnDestroyed ()
{
base.OnDestroyed ();
if (resizeCursor != null) {
resizeCursor.Dispose ();
resizeCursor = null;
}
}
}
class TreeGroup
{
public string Group;
public int X;
public int Y;
public StateType State;
}
class CellRendererProperty: CellRenderer
{
PropertyDescriptor property;
object instance;
int rowHeight;
PropertyEditorCell editorCell;
bool sensitive;
bool visible;
TreeView tree;
public CellRendererProperty (TreeView tree)
{
this.tree = tree;
Xalign = 0;
Xpad = 3;
Mode |= Gtk.CellRendererMode.Editable;
Entry dummyEntry = new Gtk.Entry ();
dummyEntry.HasFrame = false;
rowHeight = dummyEntry.SizeRequest ().Height;
}
public void SetData (object instance, PropertyDescriptor property, PropertyEditorCell editor)
{
this.instance = instance;
this.property = property;
if (property == null)
this.CellBackgroundGdk = tree.Style.MidColors [(int)Gtk.StateType.Normal];
else
this.CellBackground = null;
visible = property != null ? property.VisibleFor (instance): true;
sensitive = property != null ? property.EnabledFor (instance) && property.VisibleFor (instance): true;
editorCell = editor;
}
public override void GetSize (Widget widget, ref Rectangle cell_area, out int x_offset, out int y_offset, out int width, out int height)
{
if (editorCell != null)
editorCell.GetSize ((int)(cell_area.Width - this.Xpad * 2), out width, out height);
else {
width = height = 0;
}
width += (int) this.Xpad * 2;
height += (int) this.Ypad * 2;
x_offset = 0;
y_offset = 0;
if (height < rowHeight)
height = rowHeight;
}
protected override void Render (Drawable window, Widget widget, Rectangle background_area, Rectangle cell_area, Rectangle expose_area, CellRendererState flags)
{
if (instance == null || !visible)
return;
int width = 0, height = 0;
int iwidth = cell_area.Width - (int) this.Xpad * 2;
if (editorCell != null)
editorCell.GetSize ((int)(cell_area.Width - this.Xpad * 2), out width, out height);
Rectangle bounds = new Rectangle ();
bounds.Width = width > iwidth ? iwidth : width;
bounds.Height = height;
bounds.X = (int) (cell_area.X + this.Xpad);
bounds.Y = cell_area.Y + (cell_area.Height - height) / 2;
StateType state = GetState (flags);
if (editorCell != null)
editorCell.Render (window, bounds, state);
}
public override CellEditable StartEditing (Gdk.Event ev, Widget widget, string path, Gdk.Rectangle background_area, Gdk.Rectangle cell_area, CellRendererState flags)
{
if (property == null || editorCell == null || !sensitive)
return null;
StateType state = GetState (flags);
EditSession session = editorCell.StartEditing (cell_area, state);
if (session == null)
return null;
Gtk.Widget propEditor = (Gtk.Widget) session.Editor;
propEditor.Show ();
HackEntry e = new HackEntry (propEditor, session);
e.Show ();
return e;
}
StateType GetState (CellRendererState flags)
{
if (!sensitive)
return StateType.Insensitive;
else if ((flags & CellRendererState.Selected) != 0)
return StateType.Selected;
else
return StateType.Normal;
}
}
class CellRendererPropertyGroup: CellRendererText
{
TreeView tree;
Pango.Layout layout;
bool isGroup;
bool sensitive;
public bool IsGroup {
get { return isGroup; }
set {
isGroup = value;
if (value)
this.CellBackgroundGdk = tree.Style.MidColors [(int)Gtk.StateType.Normal];
else
this.CellBackground = null;
}
}
public bool SensitiveProperty {
get { return sensitive; }
set { sensitive = value; }
}
public CellRendererPropertyGroup (TreeView tree)
{
this.tree = tree;
layout = new Pango.Layout (tree.PangoContext);
layout.Wrap = Pango.WrapMode.Char;
Pango.FontDescription des = tree.Style.FontDescription.Copy();
des.Size = 10 * (int) Pango.Scale.PangoScale;
layout.FontDescription = des;
}
protected void GetCellSize (Widget widget, int availableWidth, out int width, out int height)
{
layout.SetMarkup (Text);
layout.Width = -1;
layout.GetPixelSize (out width, out height);
}
public override void GetSize (Widget widget, ref Rectangle cell_area, out int x_offset, out int y_offset, out int width, out int height)
{
GetCellSize (widget, (int)(cell_area.Width - this.Xpad * 2), out width, out height);
width += (int) this.Xpad * 2;
height += (int) this.Ypad * 2;
x_offset = y_offset = 0;
if (IsGroup)
width = 0;
}
protected override void Render (Drawable window, Widget widget, Rectangle background_area, Rectangle cell_area, Rectangle expose_area, CellRendererState flags)
{
int width, height;
GetCellSize (widget, (int)(cell_area.Width - this.Xpad * 2), out width, out height);
int x = (int) (cell_area.X + this.Xpad);
int y = cell_area.Y + (cell_area.Height - height) / 2;
StateType state;
if (!sensitive)
state = StateType.Insensitive;
else if ((flags & CellRendererState.Selected) != 0)
state = StateType.Selected;
else
state = StateType.Normal;
if (IsGroup) {
TreeGroup grp = new TreeGroup ();
grp.X = x;
grp.Y = y;
grp.Group = Text;
grp.State = state;
InternalTree tree = (InternalTree) widget;
tree.Groups.Add (grp);
} else {
window.DrawLayout (widget.Style.TextGC (state), x, y, layout);
int bx = background_area.X + background_area.Width - 1;
Gdk.GC gc = new Gdk.GC (window);
gc.RgbFgColor = tree.Style.MidColors [(int)Gtk.StateType.Normal];
window.DrawLine (gc, bx, background_area.Y, bx, background_area.Y + background_area.Height);
}
}
}
class HackEntry: Entry
{
EventBox box;
EditSession session;
public HackEntry (Gtk.Widget child, EditSession session)
{
this.session = session;
box = new EventBox ();
box.ButtonPressEvent += new ButtonPressEventHandler (OnClickBox);
box.ModifyBg (StateType.Normal, Style.White);
box.Add (child);
}
[GLib.ConnectBefore]
void OnClickBox (object s, ButtonPressEventArgs args)
{
// Avoid forwarding the button press event to the
// tree, since it would hide the cell editor.
args.RetVal = true;
}
protected override void OnParentSet (Gtk.Widget previous_parent)
{
base.OnParentSet (previous_parent);
if (Parent != null) {
if (this.ParentWindow != null)
box.ParentWindow = this.ParentWindow;
box.Parent = Parent;
box.Show ();
((InternalTree)Parent).Editing = true;
}
else {
session.Dispose ();
((InternalTree)previous_parent).Editing = false;
if (box.Parent != null)
box.Unparent ();
}
}
protected override void OnShown ()
{
// Do nothing.
}
protected override void OnSizeAllocated (Gdk.Rectangle allocation)
{
base.OnSizeAllocated (allocation);
box.SizeRequest ();
box.Allocation = allocation;
}
}
class InstanceData
{
public InstanceData (object instance)
{
Instance = instance;
}
public object Instance;
}
}
|