134 lines
3.4 KiB
C++
134 lines
3.4 KiB
C++
// -*-c++-*- osgWidget - Code by: Jeremy Moles (cubicool) 2007-2008
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// $Id: osgwidgetaddremove.cpp 45 2008-04-23 16:46:11Z cubicool $
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#include <osgWidget/Util>
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#include <osgWidget/WindowManager>
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#include <osgWidget/Table>
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#include <osgWidget/Box>
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#include <osgWidget/Label>
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const unsigned int MASK_2D = 0xF0000000;
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class ABCWidget: public osgWidget::Label {
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public:
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ABCWidget(const std::string& label):
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osgWidget::Label("", label) {
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setFont("fonts/Vera.ttf");
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setFontSize(20);
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setCanFill(true);
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setShadow(0.08f);
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addSize(10.0f, 10.0f);
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}
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};
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class Button: public osgWidget::Label {
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public:
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Button(const std::string& label):
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osgWidget::Label("", label) {
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setFont("fonts/Vera.ttf");
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setFontSize(30);
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setColor(0.8f, 0.2f, 0.2f, 0.8f);
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setCanFill(true);
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setShadow(0.1f);
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setEventMask(osgWidget::EVENT_MASK_MOUSE_CLICK);
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addSize(20.0f, 20.0f);
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}
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// NOTE! I need to make it clearer than Push/Release can happen so fast that
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// the changes you make aren't visible with your refresh rate. Throttling state
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// changes and what-have-you on mousePush/mouseRelease/etc. is going to be
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// annoying...
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virtual bool mousePush(double, double, const osgWidget::WindowManager*) {
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addColor(0.2f, 0.2f, 0.2f, 0.0f);
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return true;
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}
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virtual bool mouseRelease(double, double, const osgWidget::WindowManager*) {
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addColor(-0.2f, -0.2f, -0.2f, 0.0f);
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return true;
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}
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};
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class AddRemove: public osgWidget::Box {
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osg::ref_ptr<osgWidget::Window> _win1;
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public:
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AddRemove():
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osgWidget::Box ("buttons", osgWidget::Box::VERTICAL),
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_win1 (new osgWidget::Box("win1", osgWidget::Box::VERTICAL)) {
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addWidget(new Button("Add Widget"));
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addWidget(new Button("Remove Widget"));
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// Take special note here! Not only do the Button objects have their
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// own overridden methods for changing the color, but they have attached
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// callbacks for doing the work with local data.
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getByName("Widget_1")->addCallback(new osgWidget::Callback(
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&AddRemove::handlePressAdd,
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this,
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osgWidget::EVENT_MOUSE_PUSH
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));
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getByName("Widget_2")->addCallback(new osgWidget::Callback(
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&AddRemove::handlePressRemove,
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this,
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osgWidget::EVENT_MOUSE_PUSH
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));
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}
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virtual void managed(osgWidget::WindowManager* wm) {
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osgWidget::Box::managed(wm);
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_win1->setOrigin(250.0f, 0.0f);
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wm->addChild(_win1.get());
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}
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bool handlePressAdd(osgWidget::Event& /*ev*/) {
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static unsigned int num = 0;
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std::stringstream ss;
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ss << "a random widget " << num;
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_win1->addWidget(new ABCWidget(ss.str()));
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num++;
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return true;
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}
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bool handlePressRemove(osgWidget::Event& /*ev*/) {
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// TODO: Temporary hack!
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const osgWidget::Box::Vector& v = _win1->getObjects();
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if(!v.size()) return false;
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osgWidget::Widget* w = _win1->getObjects()[v.size() - 1].get();
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_win1->removeWidget(w);
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return true;
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}
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};
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int main(int, char**)
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{
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osgViewer::Viewer viewer;
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osgWidget::WindowManager* wm = new osgWidget::WindowManager(
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&viewer,
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1280.0f,
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1024.0f,
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MASK_2D
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);
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osgWidget::Box* buttons = new AddRemove();
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wm->addChild(buttons);
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return createExample(viewer, wm);
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}
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