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
|
// Copyright (C) 2011-2013, Gabriel Dos Reis.
// All rights reserved.
// Written by Gabriel Dos Reis.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// - Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// - Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in
// the documentation and/or other materials provided with the
// distribution.
//
// - Neither the name of OpenAxiom. nor the names of its contributors
// may be used to endorse or promote products derived from this
// software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
// IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef OPENAXIOM_CONVERSATION_INCLUDED
#define OPENAXIOM_CONVERSATION_INCLUDED
#include <vector>
#include <QFrame>
#include <QLineEdit>
#include <QTextEdit>
#include <QFont>
#include <QEvent>
#include <QResizeEvent>
#include <QPaintEvent>
#include <QRegExp>
#include "server.h"
namespace OpenAxiom {
// A conversation is a set of exchanges. An exchange is a question
// followed by an answer. A conversation that takes place in a
// a certain frame is a debate.
class Debate;
class Conversation;
class Exchange;
class Question;
class Answer;
class MainWindow;
// --------------------
// -- OutputTextArea --
// --------------------
// An output text area is a widget where we output text.
// The texts are accumulated, as opposed to overwritten.
class OutputTextArea : public QTextEdit {
typedef QTextEdit Base;
public:
explicit OutputTextArea(QWidget*);
// the metrics of this output area
QSize sizeHint() const;
// Add a new paragraph to existing texts. Paragraghs are
// separated by the newline character.
void add_paragraph(const QString&);
// Add accumulate new text.
void add_text(const QString&);
// Current cursor
QTextCursor& get_cursor() { return cur; }
OutputTextArea& insert_block(const QString&);
protected:
QTextCursor cur;
};
// ---------------
// -- Question --
// ---------------
// A question is just a one-liner query area.
struct Question : QLineEdit {
explicit Question(Exchange*);
protected:
void enterEvent(QEvent*);
void focusInEvent(QFocusEvent*);
};
// ------------
// -- Answer --
// ------------
struct Answer : OutputTextArea {
explicit Answer(Exchange*);
};
// --------------
// -- Exchange --
// --------------
class Exchange : public QFrame {
Q_OBJECT;
public:
Exchange(Conversation*, int);
// The widget holding the query area
Question* question() { return &query; }
const Question* question() const { return &query; }
Server* server() const;
// The widget holding the reply area.
Answer* answer() { return &reply; }
const Answer* answer() const { return &reply; }
// Conversion number
int number() const { return no; }
// Reimplement position management.
QSize sizeHint() const;
protected:
void resizeEvent(QResizeEvent*);
private:
Conversation* const win;
const int no;
Question query;
Answer reply;
private slots:
void reply_to_query();
};
// Conversation banner, welcome greatings.
class Banner : public OutputTextArea {
typedef OutputTextArea Base;
public:
explicit Banner(Conversation*);
};
// -- Set of conversations that make up a session.
// -- We remember and number each topic so that we
// -- can go back in the conversation set and reevaluate
// -- queries.
class Conversation : public QWidget {
Q_OBJECT;
public:
explicit Conversation(Debate*);
~Conversation();
Debate* debate() const { return win; }
// Holds if this conversation just started.
bool fresh() const { return children.empty(); }
// Number of exchanges in this conversation
int length() const { return children.size(); }
// Return the `i'-th conversation in this set, if any.
Exchange* operator[](int) const;
// Return the bottom left corner of the rectangle enclosing the
// the set of exchanges in this conversation.
QPoint bottom_left() const;
// Start a new conversation topic.
Exchange* new_topic();
// Override QWidegt::sizeHint. Return the cumulative sizes
// of all conversations so far.
QSize sizeHint() const;
// Return a pointer to the current exchange, if any.
Exchange* exchange() { return cur_ex; }
public slots:
// Return the topic following a given topic in this set of conversations
Exchange* next(Exchange*);
protected:
void resizeEvent(QResizeEvent*);
void paintEvent(QPaintEvent*);
private slots:
void read_reply();
private:
typedef std::vector<Exchange*> Children;
Debate* const win;
Banner greatings;
Children children;
Exchange* cur_ex;
OutputTextArea* cur_out;
QRegExp rx;
QRegExp tx;
};
}
#endif // OPENAXIOM_CONVERSATION_INCLUDED
// Local Variables:
// mode: c++
// End:
|
