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
|
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Examples</title><meta name="generator" content="DocBook XSL Stylesheets V1.64.1"><link rel="home" href="index.html" title="Programming with gtkmm2"><link rel="up" href="ch09.html" title="Chapter9.TextView"><link rel="previous" href="ch09s02.html" title="Widgets and ChildAnchors"><link rel="next" href="ch10.html" title="Chapter10.Menus and Toolbars"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Examples</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch09s02.html">Prev</a></td><th width="60%" align="center">Chapter9.TextView</th><td width="20%" align="right"><a accesskey="n" href="ch10.html">Next</a></td></tr></table><hr></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2513027"></a>Examples</h2></div></div><div></div></div><div class="sect2" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="id2513031"></a>Simple Example</h3></div></div><div></div></div><div class="figure"><a name="figure-textview"></a><p class="title"><b>Figure9.1.TextView</b></p><div class="screenshot"><div><img src="../figures/textview.png" alt="TextView"></div></div></div><p><a href="../../../examples/book/textview/" target="_top">Source Code</a></p><p>File: examplewindow.h
</p><pre class="programlisting">
#ifndef GTKMM_EXAMPLEWINDOW_H
#define GTKMM_EXAMPLEWINDOW_H
#include <gtkmm.h>
class ExampleWindow : public Gtk::Window
{
public:
ExampleWindow();
virtual ~ExampleWindow();
protected:
virtual void fill_buffers();
//Signal handlers:
virtual void on_button_quit();
virtual void on_button_buffer1();
virtual void on_button_buffer2();
//Child widgets:
Gtk::VBox m_VBox;
Gtk::ScrolledWindow m_ScrolledWindow;
Gtk::TextView m_TextView;
Glib::RefPtr<Gtk::TextBuffer> m_refTextBuffer1, m_refTextBuffer2;
Gtk::HButtonBox m_ButtonBox;
Gtk::Button m_Button_Quit, m_Button_Buffer1, m_Button_Buffer2;
};
#endif //GTKMM_EXAMPLEWINDOW_H
</pre><p>
</p><p>File: examplewindow.cc
</p><pre class="programlisting">
#include "examplewindow.h"
ExampleWindow::ExampleWindow()
: m_Button_Quit(Gtk::Stock::QUIT),
m_Button_Buffer1("Use buffer 1"),
m_Button_Buffer2("Use buffer 2")
{
set_title("Gtk::TextView example");
set_border_width(5);
set_default_size(400, 200);
add(m_VBox);
//Add the TreeView, inside a ScrolledWindow, with the button underneath:
m_ScrolledWindow.add(m_TextView);
//Only show the scrollbars when they are necessary:
m_ScrolledWindow.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
m_VBox.pack_start(m_ScrolledWindow);
//Add buttons:
m_VBox.pack_start(m_ButtonBox, Gtk::PACK_SHRINK);
m_ButtonBox.pack_start(m_Button_Buffer1, Gtk::PACK_SHRINK);
m_ButtonBox.pack_start(m_Button_Buffer2, Gtk::PACK_SHRINK);
m_ButtonBox.pack_start(m_Button_Quit, Gtk::PACK_SHRINK);
m_ButtonBox.set_border_width(5);
m_ButtonBox.set_spacing(5);
m_ButtonBox.set_layout(Gtk::BUTTONBOX_END);
//Connect signals:
m_Button_Quit.signal_clicked().connect( SigC::slot(*this, &ExampleWindow::on_button_quit) );
m_Button_Buffer1.signal_clicked().connect( SigC::slot(*this, &ExampleWindow::on_button_buffer1) );
m_Button_Buffer2.signal_clicked().connect( SigC::slot(*this, &ExampleWindow::on_button_buffer2) );
fill_buffers();
on_button_buffer1();
show_all_children();
}
void ExampleWindow::fill_buffers()
{
//Create the first TextBuffer:
m_refTextBuffer1 = Gtk::TextBuffer::create();
m_refTextBuffer1->set_text("This is the text from TextBuffer #1.");
//Create a TagTable:
Glib::RefPtr<Gtk::TextBuffer::TagTable> refTagTable = m_refTextBuffer1->get_tag_table();
//Apply color to some text.
//Create the tags:
Glib::RefPtr<Gtk::TextBuffer::Tag> refTagOrange = Gtk::TextBuffer::Tag::create("example-orange"); //We give it an arbitrary name.
refTagOrange->property_background() = "orange";
refTagTable->add(refTagOrange);
Glib::RefPtr<Gtk::TextBuffer::Tag> refTagBold = Gtk::TextBuffer::Tag::create("example-bold"); //We give it an arbitrary name.
refTagBold->property_weight() = Pango::WEIGHT_BOLD;
refTagTable->add(refTagBold);
//Use a tag:
m_refTextBuffer1->apply_tag(refTagOrange, m_refTextBuffer1->begin(), m_refTextBuffer1->get_iter_at_offset(4));
//Fill the second buffer, using the tags as we add the text:
m_refTextBuffer2 = Gtk::TextBuffer::create(refTagTable); //share the TagTable. A future gtkmm will have a set_tag_table() method.
m_refTextBuffer2->set_text("This is some alternative text, from TextBuffer #2.");
m_refTextBuffer2->insert_with_tag(m_refTextBuffer2->end(), "\nAnd here is some more", refTagOrange);
m_refTextBuffer2->insert_with_tag(m_refTextBuffer2->end(), "\nAnd some more.", refTagBold);
}
ExampleWindow::~ExampleWindow()
{
}
void ExampleWindow::on_button_quit()
{
hide();
}
void ExampleWindow::on_button_buffer1()
{
m_TextView.set_buffer(m_refTextBuffer1);
}
void ExampleWindow::on_button_buffer2()
{
m_TextView.set_buffer(m_refTextBuffer2);
}
</pre><p>
</p><p>File: main.cc
</p><pre class="programlisting">
#include <gtkmm/main.h>
#include "examplewindow.h"
int main(int argc, char *argv[])
{
Gtk::Main kit(argc, argv);
ExampleWindow window;
Gtk::Main::run(window); //Shows the window and returns when it is closed.
return 0;
}
</pre><p>
</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch09s02.html">Prev</a></td><td width="20%" align="center"><a accesskey="u" href="ch09.html">Up</a></td><td width="40%" align="right"><a accesskey="n" href="ch10.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Widgets and ChildAnchors</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">Chapter10.Menus and Toolbars</td></tr></table></div></body></html>
|
