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
|
#ifndef __kregexpeditorinterface_h__
#define __kregexpeditorinterface_h__
#include <tqstring.h>
/**
* A graphical editor for regular expressions.
*
* @author Jesper K. Pedersen [email protected]
*
* The actual editor is located in tdeutils, with an interface in
* tdelibs. This means that it is a bit more complicated to create an
* instance of the editor, but only a little bit more complicated.
*
* To check if kregexpeditor in tdeutils is installed and available use this line:
*
* \code
* bool installed=!TDETrader::self()->query("KRegExpEditor/KRegExpEditor").isEmpty();
* \endcode
*
* The following is a template for what you need to do to create an instance of the
* regular expression dialog:
*
* \code
* TQDialog *editorDialog = KParts::ComponentFactory::createInstanceFromQuery<TQDialog>( "KRegExpEditor/KRegExpEditor" );
* if ( editorDialog ) {
* // tdeutils was installed, so the dialog was found fetch the editor interface
* KRegExpEditorInterface *editor = ::tqqt_cast<KRegExpEditorInterface *>( editorDialog );
* Q_ASSERT( editor ); // This should not fail!
*
* // now use the editor.
* editor->setRegExp("^kde$");
*
* // Finally exec the dialog
* editorDialog->exec();
* }
* else {
* // Don't offer the dialog.
* }
* \endcode
*
* Note: signals and slots must be connected to the editorDialog object, not to the editor object:
* \code
* connect( editorDialog, TQT_SIGNAL( canUndo( bool ) ), undoBut, TQT_SLOT( setEnabled( bool ) ) );
* \endcode
*
* If you want to create an instance of the editor widget, i.e. not the
* dialog, then you must do it in the following way:
*
* \code
* TQWidget *editorWidget =
* KParts::ComponentFactory::createInstanceFromQuery<TQWidget>(
* "KRegExpEditor/KRegExpEditor", TQString::null, parent );
* if ( editorWidget ) {
* // tdeutils was installed, so the widget was found fetch the editor interface
* KRegExpEditorInterface *editor = ::tqqt_cast<KRegExpEditorInterface *>( editorWidget );
* Q_ASSERT( editor ); // This should not fail!
*
* // now use the editor.
* editor->setRegExp("^kde$");
* // Finally insert the widget into the layout of its parent
* layout->addWidget( editorWidget );
* }
* else {
* // Don't offer the editor widget.
* }
* \endcode
*
*/
class KRegExpEditorInterface
{
public:
/**
* returns the regular expression of the editor in Qt3 QRegExp
* syntax. Note, there is also a 'regexp' Qt property available.
*/
virtual TQString regExp() const = 0;
protected:
// These are signals: in classes that actually implement the interface.
/**
* This signal tells whether undo is available.
*/
virtual void canUndo( bool ) = 0;
/**
* This signal tells whether redo is available.
*/
virtual void canRedo( bool ) = 0;
/**
* This signal is emited whenever the regular expression changes.
* The argument is true when the regular expression is different from
* the loaded regular expression and false when it is equal to the
* loaded regular expression.
*/
virtual void changes( bool ) = 0;
public:
// These are public slots: in classes that implement the interface.
/**
* Set the regular expression for the editor. The syntax must be Qt3
* TQRegExp syntax.
*/
virtual void setRegExp( const TQString ®exp ) = 0;
virtual void redo() = 0;
virtual void undo() = 0;
/**
* Set text to use when showing matches. NOT IMPLEMENTED YET!
*
* This method is not yet implemented. In later version of the widget
* this method will be used to give the widget a text to show matches of
* the regular expression on.
*/
virtual void setMatchText( const TQString& ) = 0;
/**
* This method allows for future changes that will not break binary
* compatibility. DONT USE!
*
* KDE has a policy of keeping binary compatibility for all major
* version of KDE. This means that new methods can not be added to this
* API before KDE version 4.0.
*
* This method is an escape door for that.
*
* Conclusion: You should not use this method in this version of KDE!
*/
virtual void doSomething( TQString method, void* arguments ) = 0;
};
#endif
|
