From Jeremy Moles, import of the osgWidget NodeKit, sourced from the original http://osgwidget.googlecode.com/svn/trunk
Notes from Robert Osfield, I've merged osgWidget trunk, and added/changed CMakeLists.txt file to make it suitable for inclusion in the core OSG, and moved imagery/scripts/shaders out into OpenSceneGraph-Data
This commit is contained in:
Robert Osfield
251
src/osgWidget/Frame.cpp
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251
src/osgWidget/Frame.cpp
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// -*-c++-*- osgWidget - Code by: Jeremy Moles (cubicool) 2007-2008
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// $Id: Frame.cpp 59 2008-05-15 20:55:31Z cubicool $
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#include <osgDB/ReadFile>
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#include <osgWidget/WindowManager>
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#include <osgWidget/Frame>
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namespace osgWidget {
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std::string Frame::cornerToString(CORNER c) {
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if(c == CORNER_LOWER_LEFT) return "CornerLowerLeft";
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else if(c == CORNER_LOWER_RIGHT) return "CornerLowerRight";
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else if(c == CORNER_UPPER_RIGHT) return "CornerUpperRight";
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else return "CornerUpperLeft";
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}
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std::string Frame::borderToString(BORDER b) {
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if(b == BORDER_LEFT) return "BorderLeft";
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else if(b == BORDER_RIGHT) return "BorderRight";
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else if(b == BORDER_TOP) return "BorderTop";
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else return "BorderBottom";
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}
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Frame::Corner::Corner(CORNER corner, point_type width, point_type height):
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Widget (cornerToString(corner), width, height),
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_corner (corner) {
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setEventMask(EVENT_MASK_MOUSE_DRAG);
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}
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Frame::Corner::Corner(const Corner& corner, const osg::CopyOp& co):
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Widget (corner, co),
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_corner (corner._corner) {
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}
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bool Frame::Corner::mouseDrag(double x, double y, WindowManager* wm) {
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Window* parent = getParent();
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if(!parent) return false;
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if(wm->isInvertedY()) {
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if(_corner == CORNER_UPPER_LEFT) {
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if(parent->resizeAdd(-x, -y)) parent->addOrigin(x, y);
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}
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else if(_corner == CORNER_UPPER_RIGHT) {
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if(parent->resizeAdd(x, -y)) parent->addY(y);
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}
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else if(_corner == CORNER_LOWER_RIGHT) parent->resizeAdd(x, y);
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else {
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if(parent->resizeAdd(-x, y)) parent->addX(x);
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}
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}
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// These are basically flipped-around versions of the above routines; we
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// do it this way to avoid lots of uncessary if tests.
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else {
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if(_corner == CORNER_UPPER_LEFT) {
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if(parent->resizeAdd(-x, y)) parent->addX(x);
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}
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else if(_corner == CORNER_UPPER_RIGHT) parent->resizeAdd(x, y);
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else if(_corner == CORNER_LOWER_RIGHT) {
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if(parent->resizeAdd(x, -y)) parent->addY(y);
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}
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else {
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if(parent->resizeAdd(-x, -y)) parent->addOrigin(x, y);
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}
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}
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parent->update();
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return true;
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}
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Frame::Border::Border(BORDER border, point_type width, point_type height):
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Widget (borderToString(border), width, height),
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_border (border) {
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setCanFill(true);
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setEventMask(EVENT_MASK_MOUSE_DRAG);
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}
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Frame::Border::Border(const Border& border, const osg::CopyOp& co):
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Widget (border, co),
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_border (border._border) {
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}
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bool Frame::Border::mouseDrag(double x, double y, WindowManager* wm) {
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Window* parent = getParent();
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if(!parent) return false;
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if(_border == BORDER_LEFT) {
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if(parent->resizeAdd(-x, 0.0f)) parent->addX(x);
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}
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else if(_border == BORDER_RIGHT) parent->resizeAdd(x, 0.0f);
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else if(_border == BORDER_TOP) parent->addOrigin(x, y);
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else {
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// The only BORDER that inverted-Y affects is this...
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if(wm->isInvertedY()) parent->resizeAdd(0.0f, y);
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else {
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if(parent->resizeAdd(0.0f, -y)) parent->addY(y);
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}
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}
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parent->update();
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return true;
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}
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Frame::Frame(const std::string& name):
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Table(name, 3, 3) {
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}
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Frame::Frame(const Frame& frame, const osg::CopyOp& co):
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Table(frame, co) {
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}
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Widget* Frame::_getCorner(CORNER c) const {
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return const_cast<Widget*>(getByName(cornerToString(c)));
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}
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Widget* Frame::_getBorder(BORDER b) const {
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return const_cast<Widget*>(getByName(borderToString(b)));
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}
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void Frame::managed(WindowManager* wm) {
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Window::managed(wm);
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// Our Frame is created in an inverted-Y environment, so if this is the case
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// just return here.
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if(wm->isInvertedY()) return;
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Corner* ll = getCorner(CORNER_LOWER_LEFT);
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Corner* lr = getCorner(CORNER_LOWER_RIGHT);
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Corner* ul = getCorner(CORNER_UPPER_LEFT);
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Corner* ur = getCorner(CORNER_UPPER_RIGHT);
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Border* t = getBorder(BORDER_TOP);
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Border* b = getBorder(BORDER_BOTTOM);
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if(!ll || !lr || !ul || !ur || !t || !b) {
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warn()
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<< "One or more of your Corner/Border objects in the Frame ["
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<< _name << "] are invalid; cannot invert orientation." << std::endl
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;
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return;
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}
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ll->setCornerAndName(CORNER_UPPER_LEFT);
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lr->setCornerAndName(CORNER_UPPER_RIGHT);
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ul->setCornerAndName(CORNER_LOWER_LEFT);
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ur->setCornerAndName(CORNER_LOWER_RIGHT);
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t->setBorderAndName(BORDER_BOTTOM);
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b->setBorderAndName(BORDER_TOP);
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}
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bool Frame::setWindow(Window* window) {
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if(!window) return false;
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EmbeddedWindow* ew = getEmbeddedWindow();
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// If it's the first time setting the Window...
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// if(!ew || !ew->getWindow()) return addWidget(window->embed(), 1, 1);
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if(!ew) return addWidget(window->embed(), 1, 1);
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else return ew->setWindow(window);
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}
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Frame* Frame::createSimpleFrame(
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const std::string& name,
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point_type cw,
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point_type ch,
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point_type w,
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point_type h,
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Frame* exFrame
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) {
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Frame* frame = 0;
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// Use an "existing frame" if we have it (for example, if you've in inherited from
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// Frame and want to use this stuff.
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if(!exFrame) frame = new Frame(name);
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else frame = exFrame;
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frame->addWidget(new Corner(CORNER_UPPER_LEFT, cw, ch), 0, 0);
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frame->addWidget(new Border(BORDER_TOP, w, ch), 0, 1);
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frame->addWidget(new Corner(CORNER_UPPER_RIGHT, cw, ch), 0, 2);
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frame->addWidget(new Border(BORDER_LEFT, cw, h), 1, 0);
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frame->addWidget(new Border(BORDER_RIGHT, cw, h), 1, 2);
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frame->addWidget(new Corner(CORNER_LOWER_LEFT, cw, ch), 2, 0);
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frame->addWidget(new Border(BORDER_BOTTOM, w, ch), 2, 1);
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frame->addWidget(new Corner(CORNER_LOWER_RIGHT, cw, ch), 2, 2);
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EmbeddedWindow* ew = new EmbeddedWindow(name, w, h);
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ew->setCanFill(true);
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frame->addWidget(ew, 1, 1);
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return frame;
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}
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Frame* Frame::createSimpleFrameWithSingleTexture(
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const std::string& name,
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const std::string& texture,
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point_type tw,
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point_type th,
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point_type cw,
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point_type ch,
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point_type w,
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point_type h,
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Frame* exFrame
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) {
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Frame* frame = 0;
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// The same as above...
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if(!exFrame) frame = createSimpleFrame(name, cw, ch, w, h);
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else frame = createSimpleFrame(name, cw, ch, w, h, exFrame);
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for(unsigned int i = 0; i < 9; i++) frame->getObjects()[i]->setImage(texture);
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frame->getByRowCol(0, 0)->setTexCoordRegion(0.0f, th - ch, cw, ch);
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frame->getByRowCol(0, 1)->setTexCoordRegion(cw, th - ch, tw - (cw * 2.0f), ch);
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frame->getByRowCol(0, 2)->setTexCoordRegion(tw - cw, th - ch, cw, ch);
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frame->getByRowCol(1, 0)->setTexCoordRegion(0.0f, ch, cw, th - (ch * 2.0f));
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frame->getByRowCol(1, 2)->setTexCoordRegion(tw - cw, ch, cw, th - (ch * 2.0f));
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frame->getByRowCol(2, 0)->setTexCoordRegion(0.0f, 0.0f, cw, ch);
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frame->getByRowCol(2, 1)->setTexCoordRegion(cw, 0.0f, tw - (cw * 2.0f), ch);
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frame->getByRowCol(2, 2)->setTexCoordRegion(tw - cw, 0.0f, cw, ch);
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frame->getEmbeddedWindow()->setTexCoordRegion(cw, ch, tw - (cw * 2.0f), th - (ch * 2.0f));
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return frame;
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}
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}
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