summaryrefslogtreecommitdiffstats
path: root/lib/interfaces/tdevcore.h
blob: fadcdfde0fcf82b0b2e1b4bea221c1fff368b6bf (plain)
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
/* This file is part of the KDE project
   Copyright (C) 2001-2002 Matthias Hoelzer-Kluepfel <hoelzer@kde.org>
   Copyright (C) 2001-2002 Bernd Gehrmann <bernd@kdevelop.org>
   Copyright (C) 2001 Sandy Meier <smeier@kdevelop.org>
   Copyright (C) 2002 Daniel Engelschalt <daniel.engelschalt@gmx.net>
   Copyright (C) 2002 Simon Hausmann <hausmann@kde.org>
   Copyright (C) 2002-2003 Roberto Raggi <roberto@kdevelop.org>
   Copyright (C) 2003 Mario Scalas <mario.scalas@libero.it>
   Copyright (C) 2003 Harald Fernengel <harry@kdevelop.org>
   Copyright (C) 2003 Hamish Rodda <rodda@kde.org>
   Copyright (C) 2004 Alexander Dymo <adymo@kdevelop.org>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/
#ifndef TDEVCORE_H
#define TDEVCORE_H

/**
@file tdevcore.h
The interface to the application core and context menu classes.
*/

#include <tqstringlist.h>
#include <tqdict.h>
#include <tqobject.h>

#include <kurl.h>

class KDialogBase;
class TDevPlugin;
class CodeModelItem;
class ProjectModelItem;

namespace KParts
{
    class Part;
}

class TQStatusBar;
class TQPopupMenu;

/**
Base class for every context.
Think of a Context-based class as "useful
info associated to a context menu". Several context menu can be defined,
each defining different information: because of these context menus being
used in many modules, they are defined here.

When context menu with a certain "context" associated appears, KDevelop core 
sends a notification signal and all plugins which receive this signal have
the ability to add own items into the menu. For example, VCS plugin could
add "commit" and "update" menu items to the context menu of a file.

<b>How to use context from a plugin:</b>
-# Create a popup menu in context menu event handler: @code TDEPopupMenu menu(this); @endcode
-# Create a context: @code MyContext context(param). @endcode
-# Fill a context menu: @code core()->fillContextMenu(&menu, &context); @endcode
-# Show the popup menu: @code menu.exec(event->globalPos()); @endcode
.
In this example @em event is an object of TQContextMenuEvent class which you have access
to if you reimplement TQWidget::contextMenuEvent method.

<b>How to fill context menu from a plugin:</b>
-# Create a @code contextMenu(TQPopupMenu *, const Context *) @endcode slot in your plugin class.
-# Connect TDevCore::contextMenu(TQPopupMenu *, const Context *) signal to that slot in
the constructor of your plugin:\n 
@code
connect(core(), TQT_SIGNAL(contextMenu(TQPopupMenu *, const Context *)),
    this, TQT_SLOT(contextMenu(TQPopupMenu *, const Context *)));
@endcode
-# Fill the menu in the slot you created, for example:\n
@code
if (context->hasType(Context::EditorContext))
{
    const EditorContext *econtext = static_cast<const EditorContext*>(context);
    int id = popup->insertItem(i18n("My Menu Item 1"), this, TQT_SLOT(myMenuAction1()));
    popup->setWhatsThis(id, i18n("What's this for my menu item 1"));
}
else if context->hasType(MyContext))
{
    int id = popup->insertItem(...
    ...
}
...
@endcode
*/
class Context
{
public:
    /**Pre-defined context types. More may be added so it is possible to add custom
    contexts. <strong>We reserve enum values until 1000 (yeah, it is one thousand )
    for tdevelop official context types.</strong>*/
    enum Type
    { 
        EditorContext,            /**<Editor context menu.*/
        DocumentationContext,     /**<Documentation browser context menu.*/
        FileContext,              /**<File context menu.*/
        ProjectModelItemContext,  /**<Project tree context menu.*/
        CodeModelItemContext      /**<Class tree context menu.*/
    };

    /**Implement this in the context so we can provide rtti.*/
    virtual int type() const = 0;

    /**@return The type of this Context, so clients can discriminate
    between different file contexts.*/
    virtual bool hasType(int type) const;

protected:
    /**Constructor.*/
    Context();

    /**Destructor.*/
    virtual ~Context();
};

/**A context for the popup menu in the editor.*/
class EditorContext: public Context
{
public:
    /**Builds a context for an editor part.
    @param url The url of a file in the editor.
    @param line The line number where the cursor is.
    @param col The column number where the cursor is.
    @param linestr The content of the line where the cursor is.
    @param wordstr The current word under the cursor.*/
    EditorContext(const KURL &url, int line, int col,
        const TQString &linestr, const TQString &wordstr);
    
    /**Destructor.*/
    virtual ~EditorContext();

    virtual int type() const;

    /**@return The url for the file which this context was invoked for.*/
    const KURL &url() const;

    /**@return The line number for the cursor position.*/
    int line() const;

    /**@return The column number for the cursor position.*/
    int col() const;

    /**@return A TQString with the content of the line which this context was
    invoked for.*/
    TQString currentLine() const;

    /**@return A TQString containing the word near to the cursor when this
    context object was created.*/
    TQString currentWord() const;

private:
    class Private;
    Private *d;

    EditorContext( const EditorContext &);
    EditorContext &operator=( const EditorContext &);
};


/**
A context for the popup menu in the documentation browser widget.
*/
class DocumentationContext: public Context
{
public:

    /**Builds a DocumentationContext.
    @param url The URL that the context will be for.
    @param selection Selected text.*/
    DocumentationContext(const TQString &url, const TQString &selection );

    /**Copy constructor.*/
    DocumentationContext(const DocumentationContext &);
    DocumentationContext &operator=(const DocumentationContext &);

    /**Destructor.*/
    virtual ~DocumentationContext();

    virtual int type() const;

    /**@return The url of the document this context was invoked for.*/
    TQString url() const;

    /**@return The selected text in the document.*/
    TQString selection() const;

private:
    class Private;
    Private *d;
};

/**
A context for the popup menu in file views and other parts that show files.
Context allows multiple selections of files.
*/
class FileContext : public Context
{
public:
    /**Builds the file context using a @ref KURL::List
    @param someURLs The list of selected files URLs.*/
    FileContext(const KURL::List &someURLs);
    
    /**Destructor.*/
    virtual ~FileContext();

    virtual int type() const;

    /**@return A reference to the selected of URLs.*/
    const KURL::List &urls() const;

private:
    class Private;
    Private *d;

    FileContext( const FileContext &);
    FileContext &operator=( const FileContext &);
};

/**
A context for the popup menu in class views.
*/
class CodeModelItemContext: public Context
{
public:
    /**Builds the context.
    @param item Selected code model item representation. Usually a symbol from the code
    like class, function, etc.*/
    CodeModelItemContext(const CodeModelItem* item);

    /**Destructor.*/
    virtual ~CodeModelItemContext();

    virtual int type() const;

    /**@return The code model item for the selected item.*/
    const CodeModelItem* item() const;

private:
    class Private;
    Private *d;

    CodeModelItemContext( const CodeModelItemContext &);
    CodeModelItemContext &operator=( const CodeModelItemContext &);
};

/**
A context for the popup menu in project views.
*/
class ProjectModelItemContext : public Context
{
public:
    /**Builds the context.
    @param item The item to build the context from.*/
    ProjectModelItemContext(const ProjectModelItem* item);

    /**Destructor.*/
    virtual ~ProjectModelItemContext();

    virtual int type() const;

    /**@return The code model item for the selected item.*/
    const ProjectModelItem* item() const;

private:
    class Private;
    Private *d;

    ProjectModelItemContext( const ProjectModelItemContext &);
    ProjectModelItemContext &operator=( const ProjectModelItemContext &);
};




/**
A TDevCore class defines an object which takes care about the cooperation
between the various plug-in which compose KDevelop.
It defines:
- signals that can be captured for menu customization;
- notifications about opening / closing projects;
- methods to access functionality of KDevelop core;
- requests to fill project and global settings widgets;
- etc.
.
*/
class TDevCore: public TQObject
{
    Q_OBJECT
  
public:
    /**Constructor
    @param parent The TQObject that's the parent of this class.
    @param name The name of the class.*/
    TDevCore(TQObject *parent=0, const char *name=0);

    /**Destructor.*/
    virtual ~TDevCore();

    /**Fills the context menu.
    This method should be called by a part that wants to show a
    context menu. The parameter @p context should be filled with
    information about the context in which this happens (see
    EditorContext, DocumentationContext, ClassContext, ...).
    Essentially, this method emits the signal contextMenu()
    which other parts can use to hook in.
    @sa Context for a detailed explanation of context menu initializations and usage.
    @param popup The popup menu to fill.
    @param context The pointer to a Context object of this popup menu.*/
    virtual void fillContextMenu(TQPopupMenu *popup, const Context *context) = 0;

    /**Closes the current project and open the new one. You cannot use the @ref TDevPlugin::project() 
    * method right after opening a new project, as it will return a null pointer.
    *You must wait for the eventloop to be reentered, so use a signleshot timer
    *to do the job needed after the project is opened or connect a slot to the
    *@ref projectOpened signal.
    * @param projectFileName The file name of the project to open.*/
    virtual void openProject(const TQString& projectFileName) = 0;

    /**Marks the component as running (or not running). As long as at least one
    component is running, the stop button is enabled. When it is pressed,
    component get a stopButtonClicked(). This is usable for plugins which 
    run certain commands and want KDevelop core to be notified of that.
    If core is notified, it can allow the user to stop(interrupt) the command
    manually by means of stop button.
    @param which The plugin to mark.
    @param runs true if plugin is running something, false if it is not.*/
    virtual void running(TDevPlugin *which, bool runs) = 0;

signals:
    /**Emitted after the core has done all initializations and
    the main window has been shown.*/
    void coreInitialized();

    /**A project has been opened.*/
    void projectOpened();

    /**The project is about to be closed.*/
    void projectClosed();

    /**The language support part has been changed.*/
    void languageChanged();

    /**The user has clicked the stop button.
    If all actions should be cancelled, pass 0 to @p which
    @param which The TDevPlugin object to stop.*/
    void stopButtonClicked(TDevPlugin *which);

    /**A context menu has been requested somewhere. Components
    may hook some entries into it. More information on the
    context can be obtained by looking for the type of
    @p context and casting it accordingly.
    @sa Context for a detailed explanation of context menu initializations and usage.
    @param popupMenu The popup menu to fill.
    @param context The Context of this popup menu.*/
    void contextMenu(TQPopupMenu *popupMenu, const Context *context);

    /**Expects that a configuration page for use in the
    KDevelop settings dialog is created by the component.
    The configuration page is not demand-loading, it will be created before
    global settings dialog is shown. Use @ref ConfigWidgetProxy in your plugin
    to create demand-loading configuration pages.
    @param dlg The dialog which the configuration widget should be added to.*/
    void configWidget(KDialogBase *dlg);

    /**Expects that a configuration page for use in the
    Project settings dialog is created by the component.
    The configuration page is not demand-loading, it will be created before
    project settings dialog is shown. Use @ref ConfigWidgetProxy in your plugin
    to create demand-loading configuration pages.
    @param dlg The dialog which the configuration widget should be added to.*/
    void projectConfigWidget(KDialogBase *dlg);
};

#endif