136 lines
4.4 KiB
C++
136 lines
4.4 KiB
C++
// -*-c++-*- osgWidget - Code by: Jeremy Moles (cubicool) 2007-2008
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// $Id: osgwidgetframe.cpp 34 2008-04-07 03:12:41Z cubicool $
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#include <osgDB/ReadFile>
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#include <osgWidget/Util>
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#include <osgWidget/WindowManager>
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#include <osgWidget/Frame>
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#include <osgWidget/Box>
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const unsigned int MASK_2D = 0xF0000000;
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// NOTE: THIS IS JUST A TEMPORARY HACK! :) This functionality will all eventually be
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// encapsulate into another class in osgWidget proper.
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bool scrollWindow(osgWidget::Event& ev) {
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// The first thing we need to do is make sure we have a Frame object...
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osgWidget::Frame* frame = dynamic_cast<osgWidget::Frame*>(ev.getWindow());
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if(!frame) return false;
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// And now we need to make sure our Frame has a valid internal EmbeddedWindow widget.
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osgWidget::Window::EmbeddedWindow* ew =
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dynamic_cast<osgWidget::Window::EmbeddedWindow*>(frame->getEmbeddedWindow())
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;
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if(!ew) return false;
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// Lets get the visible area so that we can use it to make sure our scrolling action
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// is necessary in the first place.
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const osgWidget::Quad& va = ew->getWindow()->getVisibleArea();
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// The user wants to scroll up; make sure that the visible area's Y origin isn't already
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// at 0.0f, 0.0f.
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if(ev.getWindowManager()->isMouseScrollingUp() && va[1] != 0.0f)
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ew->getWindow()->addVisibleArea(0, -20)
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;
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else if(va[1] <= (ew->getWindow()->getHeight() - ew->getHeight()))
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ew->getWindow()->addVisibleArea(0, 20)
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;
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// We need to manually call update to make sure the visible area scissoring is done
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// properly.
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frame->update();
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return true;
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}
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bool changeTheme(osgWidget::Event& ev) {
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std::string theme;
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if(ev.key == osgGA::GUIEventAdapter::KEY_Right)
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theme = "osgWidget/theme-1.png"
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;
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else if(ev.key == osgGA::GUIEventAdapter::KEY_Left)
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theme = "osgWidget/theme-2.png"
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;
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else return false;
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osgWidget::Frame* frame = dynamic_cast<osgWidget::Frame*>(ev.getWindow());
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if(!frame) return false;
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// This is just one way to access all our Widgets; we could just as well have used:
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//
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// for(osgWidget::Frame::Iterator i = frame.begin(); i != frame.end() i++) {}
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//
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// ...and it have worked, too.
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for(unsigned int row = 0; row < 3; row++) {
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for(unsigned int col = 0; col < 3; col++) {
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frame->getByRowCol(row, col)->setImage(theme);
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}
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}
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return true;
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}
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int main(int argc, char** argv) {
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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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osgWidget::WindowManager::WM_PICK_DEBUG
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//osgWidget::WindowManager::WM_NO_INVERT_Y
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);
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osgWidget::Frame* frame = osgWidget::Frame::createSimpleFrameFromTheme(
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"frame",
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osgDB::readImageFile("osgWidget/theme.png"),
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40.0f,
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40.0f,
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osgWidget::Frame::FRAME_ALL
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);
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frame->getBackground()->setColor(0.0f, 0.0f, 0.0f, 0.0f);
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// This is our Transformers box. :)
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osgWidget::Box* box = new osgWidget::Box("images", osgWidget::Box::VERTICAL);
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osgWidget::Widget* img1 = new osgWidget::Widget("im1", 512.0f, 512.0f);
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osgWidget::Widget* img2 = new osgWidget::Widget("im2", 512.0f, 512.0f);
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osgWidget::Widget* img3 = new osgWidget::Widget("im3", 512.0f, 512.0f);
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osgWidget::Widget* img4 = new osgWidget::Widget("im4", 512.0f, 512.0f);
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img1->setImage("osgWidget/scrolled1.jpg", true);
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img2->setImage("osgWidget/scrolled2.jpg", true);
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img3->setImage("osgWidget/scrolled3.jpg", true);
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img4->setImage("osgWidget/scrolled4.jpg", true);
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img1->setMinimumSize(10.0f, 10.0f);
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img2->setMinimumSize(10.0f, 10.0f);
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img3->setMinimumSize(10.0f, 10.0f);
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img4->setMinimumSize(10.0f, 10.0f);
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box->addWidget(img1);
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box->addWidget(img2);
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box->addWidget(img3);
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box->addWidget(img4);
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box->setEventMask(osgWidget::EVENT_NONE);
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//frame->getEmbeddedWindow()->setWindow(box);
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frame->setWindow(box);
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frame->getEmbeddedWindow()->setColor(1.0f, 1.0f, 1.0f, 1.0f);
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frame->resize(300.0f, 300.0f);
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frame->addCallback(new osgWidget::Callback(&scrollWindow, osgWidget::EVENT_MOUSE_SCROLL));
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frame->addCallback(new osgWidget::Callback(&changeTheme, osgWidget::EVENT_KEY_DOWN));
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wm->addChild(frame);
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return osgWidget::createExample(viewer, wm);
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}
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