OpenSceneGraph/examples/osgwidgetmessagebox/osgwidgetmessagebox.cpp
Robert Osfield 6a67be2e32 Introduced CMake option OSG_PROVIDE_READFILE option that defaults to ON, but when switched to OFF disables the building of the osgDB::read*File() methods,
forcing users to use osgDB::readRef*File() methods.  The later is preferable as it closes a potential threading bug when using paging databases in conjunction
with the osgDB::Registry Object Cache.  This threading bug occurs when one thread gets an object from the Cache via an osgDB::read*File() call where only
a pointer to the object is passed back, so taking a reference to the object is delayed till it gets reassigned to a ref_ptr<>, but at the same time another
thread calls a flush of the Object Cache deleting this object as it's referenceCount is now zero.  Using osgDB::readREf*File() makes sure the a ref_ptr<> is
passed back and the referenceCount never goes to zero.

To ensure the OSG builds when OSG_PROVIDE_READFILE is to OFF the many cases of osgDB::read*File() usage had to be replaced with a ref_ptr<> osgDB::readRef*File()
usage.  The avoid this change causing lots of other client code to be rewritten to handle the use of ref_ptr<> in place of C pointer I introduced a serious of
templte methods in various class to adapt ref_ptr<> to the underly C pointer to be passed to old OSG API's, example of this is found in include/osg/Group:

    bool addChild(Node* child); // old method which can only be used with a Node*

    tempalte<class T> bool addChild(const osg::ref_ptr<T>& child) { return addChild(child.get()); } // adapter template method

These changes together cover 149 modified files, so it's a large submission. This extent of changes are warrent to make use of the Object Cache
and multi-threaded loaded more robust.



git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/branches/OpenSceneGraph-3.4@15165 16af8721-9629-0410-8352-f15c8da7e697
2015-10-22 14:14:53 +00:00

680 lines
20 KiB
C++

// -*-c++-*- osgWidget - Copyright Cedric Pinson 2008
#include <osgWidget/Util>
#include <osgWidget/WindowManager>
#include <osgWidget/Frame>
#include <osgWidget/Box>
#include <osgWidget/Widget>
#include <osgWidget/Types>
#include <osgDB/ReadFile>
#include <osgAnimation/EaseMotion>
#include <osg/io_utils>
#include <iostream>
const unsigned int MASK_2D = 0xF0000000;
class MessageBox
{
protected:
osgWidget::Frame* createButtonOk(const std::string& theme, const std::string& text, const std::string& font, int fontSize);
osgWidget::Label* createLabel(const std::string& string, const std::string& font, int size, const osgWidget::Color& color);
osg::ref_ptr<osgWidget::Frame> _window;
osg::ref_ptr<osgWidget::Frame> _button;
public:
osgWidget::Frame* getButton();
osgWidget::Frame* getWindow();
bool create(const std::string& themeMessage,
const std::string& themeButton,
const std::string& titleText,
const std::string& messageText,
const std::string& buttonText,
const std::string& font,
int fontSize);
};
osgWidget::Frame* MessageBox::getButton() { return _button.get(); }
osgWidget::Frame* MessageBox::getWindow() { return _window.get(); }
struct AlphaSetterVisitor : public osg::NodeVisitor
{
float _alpha;
AlphaSetterVisitor( float alpha = 1.0):osg::NodeVisitor(TRAVERSE_ALL_CHILDREN) { _alpha = alpha;}
void apply(osg::MatrixTransform& node)
{
osgWidget::Window* win = dynamic_cast<osgWidget::Window*>(&node);
if (win) {
// osgWidget::warn() << "I am in Window: " << win->getName() << std::endl;
for (osgWidget::Window::Iterator it = win->begin(); it != win->end(); it++)
{
// osgWidget::warn() << " I am operating on Widget: " << it->get()->getName() << std::endl;
osgWidget::Color color = it->get()->getColor();
color[3] = color[3] *_alpha;
it->get()->setColor(color);
}
{
osgWidget::Color color = win->getBackground()->getColor();
color[3] = color[3] *_alpha;
win->getBackground()->setColor(color);
}
}
traverse(node);
}
};
struct ColorSetterVisitor : public osg::NodeVisitor
{
osgWidget::Color _color;
ColorSetterVisitor( const osgWidget::Color& color):osg::NodeVisitor(TRAVERSE_ALL_CHILDREN) { _color = color;}
void apply(osg::MatrixTransform& node)
{
osgWidget::Window* win = dynamic_cast<osgWidget::Window*>(&node);
if (win) {
// osgWidget::warn() << "I am in Window: " << win->getName() << std::endl;
for (osgWidget::Window::Iterator it = win->begin(); it != win->end(); it++)
{
// osgWidget::warn() << " I am operating on Widget: " << it->get()->getName() << std::endl;
// osgWidget::Color color = it->get()->getColor();
// color[3] = color[3] *_alpha;
it->get()->setColor(_color);
}
{
// osgWidget::Color color = win->getBackground()->getColor();
// color[3] = color[3] *_alpha;
win->getBackground()->setColor(osgWidget::Color(0,0,0,0));
}
}
traverse(node);
}
};
struct EventOK : public osgWidget::Callback, osg::NodeCallback
{
typedef osgAnimation::OutCubicMotion WidgetMotion;
// typedef osgAnimation::OutQuartMotion WidgetMotion;
WidgetMotion _motionOver;
WidgetMotion _motionLeave;
double _lastUpdate;
osgWidget::Color _defaultColor;
osgWidget::Color _overColor;
bool _over;
osg::ref_ptr<osgWidget::Frame> _frame;
float _width;
float _height;
osg::Matrix _matrix;
EventOK(osgWidget::Frame* frame) : osgWidget::Callback(osgWidget::EVENT_ALL), _frame(frame)
{
_motionOver = WidgetMotion(0.0, 0.4);
_motionLeave = WidgetMotion(0.0, 0.5);
_defaultColor = _frame->getEmbeddedWindow()->getColor();
_overColor = osgWidget::Color(229.0/255.0,
103.0/255.0,
17.0/255,
_defaultColor[3]);
_over = false;
}
bool operator()(osgWidget::Event& ev)
{
if (ev.type == osgWidget::EVENT_MOUSE_ENTER)
{
_over = true;
_width = _frame->getWidth();
_height = _frame->getHeight();
_motionOver.reset();
_matrix = _frame->getMatrix();
//_frame->setMatrix(osg::Matrix::scale(2, 2, 1) * _frame->getMatrix());
_frame->setScale(1.1f); //osg::Matrix::scale(2, 2, 1) * _frame->getMatrix());
_frame->update(); //osg::Matrix::scale(2, 2, 1) * _frame->getMatrix());
std::cout << "enter" << std::endl;
return true;
}
else if (ev.type == osgWidget::EVENT_MOUSE_LEAVE)
{
_over = false;
_motionLeave.reset();
//_frame->setMatrix(_matrix);
_frame->setScale(1.0f);
_frame->update();
std::cout << "leave" << std::endl;
return true;
}
return false;
}
void operator()(osg::Node* node, osg::NodeVisitor* nv)
{
if (nv->getVisitorType() == osg::NodeVisitor::UPDATE_VISITOR)
{
const osg::FrameStamp* fs = nv->getFrameStamp();
double dt = fs->getSimulationTime() - _lastUpdate;
_lastUpdate = fs->getSimulationTime();
if (_frame.valid())
{
float value;
if (_over)
{
_motionOver.update(dt);
value = _motionOver.getValue();
}
else
{
_motionLeave.update(dt);
value = 1.0 - _motionLeave.getValue();
}
osgWidget::Color c = _defaultColor + ((_overColor - _defaultColor) * value);
ColorSetterVisitor colorSetter(c);
_frame->accept(colorSetter);
}
}
node->traverse(*nv);
}
};
osgWidget::Label* MessageBox::createLabel(const std::string& string, const std::string& font, int size, const osgWidget::Color& color)
{
osgWidget::Label* label = new osgWidget::Label("", "");
label->setFont(font);
label->setFontSize(size);
label->setFontColor(color);
label->setColor(osgWidget::Color(0,0,0,0));
label->setLabel(string);
label->setCanFill(true);
return label;
}
osgWidget::Frame* MessageBox::createButtonOk(const std::string& theme,
const std::string& text,
const std::string& font,
int fontSize)
{
osg::ref_ptr<osgWidget::Frame> frame = osgWidget::Frame::createSimpleFrameFromTheme(
"ButtonOK",
osgDB::readRefImageFile(theme),
300.0f,
50.0f,
osgWidget::Frame::FRAME_TEXTURE
);
frame->getBackground()->setColor(0.0f, 0.0f, 0.0f, 0.0f);
osgWidget::Label* label = createLabel(text, font, fontSize, osgWidget::Color(0,0,0,1));
osgWidget::Box* box = new osgWidget::Box("HBOX", osgWidget::Box::HORIZONTAL);
box->addWidget(label);
box->resize();
osgWidget::Color colorBack = frame->getEmbeddedWindow()->getColor();
box->getBackground()->setColor(colorBack);
frame->getEmbeddedWindow()->setWindow(box);
box->setVisibilityMode(osgWidget::Window::VM_ENTIRE);
box->setEventMask(osgWidget::EVENT_NONE);
frame->setVisibilityMode(osgWidget::Window::VM_ENTIRE);
frame->resizeFrame(box->getWidth(), box->getHeight());
frame->resizeAdd(0, 0);
EventOK* event = new EventOK(frame.get());
frame->setUpdateCallback(event);
frame->addCallback(event);
return frame.release();
}
bool MessageBox::create(const std::string& themeMessage,
const std::string& themeButton,
const std::string& titleText,
const std::string& messageText,
const std::string& buttonText,
const std::string& font,
int fontSize)
{
osg::ref_ptr<osgWidget::Frame> frame = osgWidget::Frame::createSimpleFrameFromTheme(
"error",
osgDB::readRefImageFile(themeMessage),
300.0f,
50.0f,
osgWidget::Frame::FRAME_ALL
);
frame->getBackground()->setColor(0.0f, 0.0f, 0.0f, 0.0f);
osgWidget::Label* labelText = createLabel(messageText, font, fontSize, osgWidget::Color(0,0,0,1));
osgWidget::Label* labelTitle = createLabel(titleText, font, fontSize+5, osgWidget::Color(0.4,0,0,1));
osgWidget::Box* box = new osgWidget::Box("VBOX", osgWidget::Box::VERTICAL);
_button = createButtonOk(themeButton, buttonText, font, fontSize);
osgWidget::Widget* buttonOK = _button->embed();
_button->setVisibilityMode(osgWidget::Window::VM_ENTIRE);
buttonOK->setColor(osgWidget::Color(0,0,0,0));
buttonOK->setCanFill(false);
labelTitle->setPadBottom(30.0f);
labelText->setPadBottom(30.0f);
box->addWidget(buttonOK);
box->addWidget(labelText);
box->addWidget(labelTitle);
osgWidget::Color colorBack = frame->getEmbeddedWindow()->getColor();
box->getBackground()->setColor(colorBack);
frame->setWindow(box);
box->resize();
frame->resizeFrame(box->getWidth(), box->getHeight());
_window = frame;
return true;
}
const char* LABEL1 =
"Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed\n"
"do eiusmod tempor incididunt ut labore et dolore magna aliqua.\n"
"Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris\n"
"nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in..."
;
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
);
int fontSize = 20;
std::string font="fonts/arial.ttf";
std::string buttonTheme = "osgWidget/theme-8-shadow.png";
std::string borderTheme = "osgWidget/theme-8.png";
MessageBox message;
message.create(borderTheme,
buttonTheme,
"Error - Critical",
LABEL1,
"Quit",
font,
fontSize);
AlphaSetterVisitor alpha(.8f);
message.getWindow()->accept(alpha);
wm->addChild(message.getWindow());
// center
osgWidget::point_type w = wm->getWidth();
osgWidget::point_type h = wm->getHeight();
osgWidget::point_type ww = message.getWindow()->getWidth();
osgWidget::point_type hw = message.getWindow()->getHeight();
osgWidget::point_type ox = (w - ww) / 2;
osgWidget::point_type oy = (h - hw) / 2;
message.getWindow()->setPosition(osgWidget::Point(
osg::round(ox), osg::round(oy), message.getWindow()->getPosition()[2])
);
// frame->resizeAdd(30, 30);
// AlphaSetterVisitor alpha(.8f);
// frame->accept(alpha);
return osgWidget::createExample(viewer, wm); //osgDB::readNodeFile("cow.osgt"));
}
#if 0
struct AlphaSetterVisitor : public osg::NodeVisitor
{
float _alpha;
AlphaSetterVisitor( float alpha = 1.0):osg::NodeVisitor(TRAVERSE_ALL_CHILDREN) { _alpha = alpha;}
void apply(osg::MatrixTransform& node)
{
osgWidget::Window* win = dynamic_cast<osgWidget::Window*>(&node);
if (win) {
// osgWidget::warn() << "I am in Window: " << win->getName() << std::endl;
for (osgWidget::Window::Iterator it = win->begin(); it != win->end(); it++)
{
// osgWidget::warn() << " I am operating on Widget: " << it->get()->getName() << std::endl;
osgWidget::Color color = it->get()->getColor();
color[3] = color[3] *_alpha;
it->get()->setColor(color);
}
{
osgWidget::Color color = win->getBackground()->getColor();
color[3] = color[3] *_alpha;
win->getBackground()->setColor(color);
}
}
traverse(node);
}
};
struct ColorSetterVisitor : public osg::NodeVisitor
{
osgWidget::Color _color;
ColorSetterVisitor( const osgWidget::Color& color):osg::NodeVisitor(TRAVERSE_ALL_CHILDREN) { _color = color;}
void apply(osg::MatrixTransform& node)
{
osgWidget::Window* win = dynamic_cast<osgWidget::Window*>(&node);
if (win) {
// osgWidget::warn() << "I am in Window: " << win->getName() << std::endl;
for (osgWidget::Window::Iterator it = win->begin(); it != win->end(); it++)
{
// osgWidget::warn() << " I am operating on Widget: " << it->get()->getName() << std::endl;
// osgWidget::Color color = it->get()->getColor();
// color[3] = color[3] *_alpha;
it->get()->setColor(_color);
}
{
// osgWidget::Color color = win->getBackground()->getColor();
// color[3] = color[3] *_alpha;
win->getBackground()->setColor(osgWidget::Color(0,0,0,0));
}
}
traverse(node);
}
};
struct EventOK : public osgWidget::Callback, osg::NodeCallback
{
typedef osgAnimation::OutQuartMotion WidgetMotion;
WidgetMotion _motionOver;
WidgetMotion _motionLeave;
double _lastUpdate;
osgWidget::Color _defaultColor;
osgWidget::Color _overColor;
bool _over;
osg::ref_ptr<osgWidget::Frame> _frame;
float _width;
float _height;
EventOK(osgWidget::Frame* frame) : osgWidget::Callback(osgWidget::EVENT_ALL), _frame(frame)
{
_motionOver = WidgetMotion(0.0, 0.4);
_motionLeave = WidgetMotion(0.0, 0.5);
_defaultColor = _frame->getEmbeddedWindow()->getColor();
_overColor = osgWidget::Color(229.0/255.0,
103.0/255.0,
17.0/255,
_defaultColor[3]);
_over = false;
}
bool operator()(osgWidget::Event& ev)
{
if (ev.type == osgWidget::EVENT_MOUSE_ENTER)
{
_over = true;
// std::cout << "Enter" << std::endl;
_width = _frame->getWidth();
_height = _frame->getHeight();
_motionOver.reset();
// _frame->resize(_width * 1.2, _height * 1.2);
return true;
}
else if (ev.type == osgWidget::EVENT_MOUSE_LEAVE)
{
_over = false;
// std::cout << "Leave" << std::endl;
// _frame->resize(_width, _height);
_motionLeave.reset();
return true;
}
return false;
}
void operator()(osg::Node* node, osg::NodeVisitor* nv)
{
if (nv->getVisitorType() == osg::NodeVisitor::UPDATE_VISITOR)
{
const osg::FrameStamp* fs = nv->getFrameStamp();
double dt = fs->getSimulationTime() - _lastUpdate;
_lastUpdate = fs->getSimulationTime();
if (_frame.valid())
{
float value;
if (_over)
{
_motionOver.update(dt);
value = _motionOver.getValue();
}
else
{
_motionLeave.update(dt);
value = 1.0 - _motionLeave.getValue();
}
osgWidget::Color c = _defaultColor + ((_overColor - _defaultColor) * value);
ColorSetterVisitor colorSetter(c);
_frame->accept(colorSetter);
}
}
node->traverse(*nv);
}
};
osgWidget::Label* createLabel(const std::string& string, const std::string& font, int size, const osgWidget::Color& color)
{
osgWidget::Label* label = new osgWidget::Label("", "");
label->setFont(font);
label->setFontSize(size);
label->setFontColor(color);
label->setColor(osgWidget::Color(0,0,0,0));
label->setLabel(string);
label->setCanFill(true);
return label;
}
osgWidget::Window* createButtonOk(const std::string& theme, const std::string& text, int fontSize)
{
osg::ref_ptr<osgWidget::Frame> frame = osgWidget::Frame::createSimpleFrameFromTheme(
"ButtonOK",
osgDB::readImageFile(theme),
300.0f,
50.0f,
osgWidget::Frame::FRAME_TEXTURE
);
frame->getBackground()->setColor(0.0f, 0.0f, 0.0f, 0.0f);
osgWidget::Label* label = createLabel(text, "fonts/Vera.ttf", fontSize, osgWidget::Color(0,0,0,1));
osgWidget::Box* box = new osgWidget::Box("HBOX", osgWidget::Box::HORIZONTAL);
box->addWidget(label);
box->resize();
osgWidget::Color colorBack = frame->getEmbeddedWindow()->getColor();
box->getBackground()->setColor(colorBack);
frame->getEmbeddedWindow()->setWindow(box);
box->setVisibilityMode(osgWidget::Window::VM_ENTIRE);
box->setEventMask(osgWidget::EVENT_NONE);
frame->resizeFrame(box->getWidth(), box->getHeight());
frame->resizeAdd(0, 0);
EventOK* event = new EventOK(frame);
frame->setUpdateCallback(event);
frame->addCallback(event);
return frame.release();
}
osgWidget::Frame* createErrorMessage(const std::string& themeMessage,
const std::string& themeButton,
const std::string& titleText,
const std::string& messageText,
const std::string& buttonText,
const std::string& font,
int fontSize)
{
osg::ref_ptr<osgWidget::Frame> frame = osgWidget::Frame::createSimpleFrameFromTheme(
"error",
osgDB::readImageFile(themeMessage),
300.0f,
50.0f,
osgWidget::Frame::FRAME_ALL
);
frame->getBackground()->setColor(0.0f, 0.0f, 0.0f, 0.0f);
osgWidget::Label* labelText = createLabel(messageText, font, fontSize, osgWidget::Color(0,0,0,1));
osgWidget::Label* labelTitle = createLabel(titleText, font, fontSize+5, osgWidget::Color(0.4,0,0,1));
osgWidget::Box* box = new osgWidget::Box("VBOX", osgWidget::Box::VERTICAL);
osgWidget::Widget* buttonOK = createButtonOk(themeButton, buttonText, fontSize)->embed();
buttonOK->setColor(osgWidget::Color(0,0,0,0));
buttonOK->setCanFill(false);
box->addWidget(buttonOK);
box->addWidget(labelText);
box->addWidget(labelTitle);
osgWidget::Color colorBack = frame->getEmbeddedWindow()->getColor();
box->getBackground()->setColor(colorBack);
frame->setWindow(box);
box->resize();
frame->resizeFrame(box->getWidth(), box->getHeight());
return frame.release();
}
const char* LABEL1 =
"Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed\n"
"do eiusmod tempor incididunt ut labore et dolore magna aliqua.\n"
"Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris\n"
"nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in..."
;
int main(int argc, char** argv)
{
std::string theme = "osgWidget/theme-1.png";
if (argc > 1)
theme = std::string(argv[1]);
osgViewer::Viewer viewer;
osgWidget::WindowManager* wm = new osgWidget::WindowManager(
&viewer,
1280.0f,
1024.0f,
MASK_2D,
osgWidget::WindowManager::WM_PICK_DEBUG
);
osgWidget::Frame* frame = createErrorMessage(theme,
"osgWidget/theme-8-shadow.png",
"Error - Critical",
LABEL1,
"Ok",
"fonts/Vera.ttf",
20);
// Add everything to the WindowManager.
wm->addChild(frame);
frame->resizeAdd(30, 30);
AlphaSetterVisitor alpha(.8f);
frame->accept(alpha);
return osgWidget::createExample(viewer, wm, osgDB::readNodeFile("cow.osgt"));
}
#endif