root/OpenSceneGraph/trunk/examples/osgwidgettable/osgwidgettable.cpp @ 14266

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1// -*-c++-*- osgWidget - Code by: Jeremy Moles (cubicool) 2007-2008
2// $Id: osgwidgettable.cpp 43 2008-04-17 03:40:05Z cubicool $
3
4#include <osgWidget/Util>
5#include <osgWidget/WindowManager>
6#include <osgWidget/Table>
7
8const unsigned int MASK_2D = 0xF0000000;
9
10// This examples demonstrates the use of an osgWidget::Table, which differs from a Box in
11// many ways. First and foremost, a Table's size is intially known, whereas a Box can be
12// dynamically added to. Secondly, a table is matrix Layout, with both vertical and
13// horizontal placement cells. A Box, on the other hand, can only be vertical or horizontal.
14
15int main(int argc, char** argv) {
16    osgViewer::Viewer viewer;
17
18    osgWidget::WindowManager* wm = new osgWidget::WindowManager(
19        &viewer,
20        1280.0f,
21        1024.0f,
22        MASK_2D,
23        osgWidget::WindowManager::WM_PICK_DEBUG
24    );
25   
26    osgWidget::Table* table = new osgWidget::Table("table", 3, 3);
27
28    // Here we create our "cells" manually, though it will often be convenient to
29    // do so algorithmically. Also, notice how we set the text name of each widget to
30    // correspond with it's "index" in the table. This is merely a convenience, which
31    // we use later...
32    table->addWidget(new osgWidget::Widget("0, 0", 100.0f, 25.0f), 0, 0);
33    table->addWidget(new osgWidget::Widget("0, 1", 100.0f, 25.0f), 0, 1);
34    table->addWidget(new osgWidget::Widget("0, 2", 100.0f, 75.0f), 0, 2);
35   
36    table->addWidget(new osgWidget::Widget("1, 0", 200.0f, 45.0f), 1, 0);
37    table->addWidget(new osgWidget::Widget("1, 1", 200.0f, 45.0f), 1, 1);
38    table->addWidget(new osgWidget::Widget("1, 2", 200.0f, 45.0f), 1, 2);
39   
40    table->addWidget(new osgWidget::Widget("2, 0", 300.0f, 65.0f), 2, 0);
41    table->addWidget(new osgWidget::Widget("2, 1", 300.0f, 65.0f), 2, 1);
42    table->addWidget(new osgWidget::Widget("2, 2", 300.0f, 65.0f), 2, 2);
43
44    table->getBackground()->setColor(0.0f, 0.0f, 0.5f, 1.0f);
45    table->attachMoveCallback();
46
47    // Use a hackish method of setting the spacing for all Widgets.
48    for(osgWidget::Table::Iterator i = table->begin(); i != table->end(); i++)
49        i->get()->setPadding(1.0f)
50    ;
51
52    // Now we fetch the very first 0, 0 Widget in the table using an awkward method.
53    // This is merely one way to fetch a Widget from a Window, there are many others.
54    // The osgWidget::Window::getByName interface will be very handy in scripting languages
55    // where users will want to retrieve handles to existing Windows using a useful
56    // textual name, such as "MainGUIParent" or something.
57    table->getByName("0, 0")->setAlignHorizontal(osgWidget::Widget::HA_LEFT);
58    table->getByName("0, 0")->setAlignVertical(osgWidget::Widget::VA_BOTTOM);
59    table->getByName("0, 0")->setPadLeft(50.0f);
60    table->getByName("0, 0")->setPadTop(3.0f);
61   
62    // Change the colors a bit to differentiate this row from the others.
63    table->getByName("2, 0")->setColor(1.0f, 0.0f, 0.0f, 1.0f, osgWidget::Widget::LOWER_LEFT);
64    table->getByName("2, 1")->setColor(1.0f, 0.0f, 0.0f, 0.5f);
65    table->getByName("2, 2")->setColor(1.0f, 0.0f, 0.0f, 0.5f);
66
67    wm->addChild(table);
68
69    return createExample(viewer, wm);
70}
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