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
|
/*
* Copyright (C) 2014 Emweb bvba, Heverlee, Belgium.
*
* See the LICENSE file for terms of use.
*/
#include <iostream>
#include <Wt/WBreak>
#include <Wt/WContainerWidget>
#include <Wt/WLineEdit>
#include <Wt/WMessageBox>
#include <Wt/WPushButton>
#include <Wt/WText>
#include "SingleThreadedApplication.h"
using namespace Wt;
class HelloApplication : public SingleThreadedApplication
{
public:
HelloApplication(const WEnvironment& env);
protected:
virtual void create();
virtual void destroy();
private:
WLineEdit *nameEdit_;
WText *greeting_;
void greet();
};
HelloApplication::HelloApplication(const WEnvironment& env)
: SingleThreadedApplication(env)
{
/* Intentionally left blank! Actual construction happens in create() */
}
void HelloApplication::create()
{
setTitle("Hello world");
root()->addWidget(new WText("Your name, please ? "));
nameEdit_ = new WLineEdit(root());
nameEdit_->setFocus();
WPushButton *button = new WPushButton("Greet me.", root());
button->setMargin(5, Left);
root()->addWidget(new WBreak());
greeting_ = new WText(root());
button->clicked().connect(this, &HelloApplication::greet);
nameEdit_->enterPressed().connect
(boost::bind(&HelloApplication::greet, this));
}
void HelloApplication::destroy()
{
root()->clear();
}
void HelloApplication::greet()
{
/*
* You can even functions that block the event loop (and start a recursive
* event loop).
*/
WMessageBox::show("Welcome", "Hello there, " + nameEdit_->text(), Ok);
}
WApplication *createApplication(const WEnvironment& env)
{
return new HelloApplication(env);
}
int main(int argc, char **argv)
{
return WRun(argc, argv, &createApplication);
}
|
