root/OpenSceneGraph/trunk/examples/osgwidgetcanvas/osgwidgetcanvas.cpp @ 9289

// -*-c++-*- osgWidget - Code by: Jeremy Moles (cubicool) 2007-2008
// $Id: osgwidgetcanvas.cpp 33 2008-04-04 19:03:12Z cubicool $

#include <osgWidget/Util>
#include <osgWidget/WindowManager>
#include <osgWidget/Canvas>

const unsigned int MASK_2D = 0xF0000000;

bool colorWidgetEnter(osgWidget::Event& event) {
        event.getWidget()->addColor(0.5f, 0.2f, 0.3f, 0.0f);

        // osgWidget::warn() << "WIDGET mouseEnter " << event.getWidget()->getName() << std::endl;
        
        return false;
}

bool colorWidgetLeave(osgWidget::Event& event) {
        event.getWidget()->addColor(-0.5f, -0.2f, -0.3f, 0.0f);

        // osgWidget::warn() << "WIDGET mouseLeave" << std::endl;
        
        return true;
}

bool windowMouseOver(osgWidget::Event& event) {
        osgWidget::XYCoord xy = event.getWindow()->localXY(event.x, event.y);

        // osgWidget::warn() << "WINDOW " << xy.x() << " - " << xy.y() << std::endl;

        return true;
}

bool widgetMouseOver(osgWidget::Event& event) {
        osgWidget::XYCoord xy = event.getWidget()->localXY(event.x, event.y);

        // osgWidget::warn() << "WIDGET mouseOver " << xy.x() << " - " << xy.y() << std::endl;

        return true;
}

osgWidget::Widget* createWidget(
        const std::string&       name,
        osgWidget::color_type    col,
        osgWidget::Widget::Layer layer
) {
        osgWidget::Widget* widget = new osgWidget::Widget(name, 200.0f, 200.0f);

        widget->setEventMask(osgWidget::EVENT_ALL);
        widget->addCallback(new osgWidget::Callback(&colorWidgetEnter, osgWidget::EVENT_MOUSE_PUSH));
        widget->addCallback(new osgWidget::Callback(&colorWidgetLeave, osgWidget::EVENT_MOUSE_RELEASE));
        widget->addCallback(new osgWidget::Callback(&colorWidgetEnter, osgWidget::EVENT_MOUSE_ENTER));
        widget->addCallback(new osgWidget::Callback(&colorWidgetLeave, osgWidget::EVENT_MOUSE_LEAVE));
        widget->addCallback(new osgWidget::Callback(&widgetMouseOver, osgWidget::EVENT_MOUSE_OVER));
        widget->setColor(col, col, col, 0.5f);
        widget->setLayer(layer);
        
        return widget;
}

int main(int argc, char** argv) {
        osgViewer::Viewer viewer;

        osgWidget::WindowManager* wm = new osgWidget::WindowManager(
                &viewer,
                1280.0f,
                1024.0f,
                MASK_2D,
                osgWidget::WindowManager::WM_PICK_DEBUG
        );
        
        osgWidget::Canvas* canvas = new osgWidget::Canvas("canvas");

        canvas->addCallback(new osgWidget::Callback(&windowMouseOver, osgWidget::EVENT_MOUSE_OVER));
        canvas->attachMoveCallback();
        canvas->attachRotateCallback();
        canvas->attachScaleCallback();

        canvas->addWidget(
                createWidget("w1", 0.2f, osgWidget::Widget::LAYER_LOW),
                0.0f,
                0.0f
        );
        
        canvas->addWidget(
                createWidget("w2", 0.4f, osgWidget::Widget::LAYER_MIDDLE),
                200.0f,
                0.0f
        );

        canvas->addWidget(
                createWidget("w3", 0.6f, osgWidget::Widget::LAYER_HIGH),
                400.0f,
                0.0f
        );

        // Add a child and then resize it relatively to the size of the parent Window.
        osgWidget::Widget* relWidget = new osgWidget::Widget("relative");

        relWidget->setLayer(osgWidget::Widget::LAYER_LOW, 1);
        relWidget->setCoordinateMode(osgWidget::Widget::CM_RELATIVE);
        relWidget->setSize(0.2f, 0.2f);
        relWidget->setColor(0.5f, 0.5f, 0.1f, 0.9f);

        osgWidget::warn() << canvas->getWidth() << std::endl;

        canvas->addWidget(relWidget, 0.4f, 0.4f);
        
        relWidget->addOrigin(0.1f, 0.1f);
        relWidget->addSize(0.2f, 0.2f);

        canvas->resize();

        // Finally, add the whole thing to the WindowManager.
        wm->addChild(canvas);

        return osgWidget::createExample(viewer, wm);
}

/*
int main(int argc, char** argv) {
        osgViewer::Viewer viewer;

        osgWidget::WindowManager* wm = new osgWidget::WindowManager(
                &viewer,
                1280.0f,
                1024.0f,
                MASK_2D,
                osgWidget::WindowManager::WM_PICK_DEBUG
        );
        
        osgWidget::Canvas* canvas = new osgWidget::Canvas("canvas");

        canvas->addWidget(new osgWidget::Widget("spacer", 2.0f, 300.0f), 1280.0f, 0.0f);

        canvas->setOrigin(0.0f, 300.0f);

        wm->addChild(canvas);

        return osgWidget::createExample(viewer, wm);
}
*/