void ModelerUserInterface::pickGroupProperty(GroupProperty* group) {
// Remove the event listeners for old controls
// TODO: we really need to have a PropertyEditor class that handles this
// automatically...
if (currentGroup) {
PropertyList* props = currentGroup->getProperties();
for (PropertyList::iterator iter = props->begin();
iter != props->end();
iter++)
{
if (RangeProperty* prop = dynamic_cast<RangeProperty*>(*iter)) {
prop->unlisten((SignalListener)updateRangeSlider);
} else if (RGBProperty* prop = dynamic_cast<RGBProperty*>(*iter)) {
prop->unlisten((SignalListener)updateColorChooser);
} else if (BooleanProperty* prop = dynamic_cast<BooleanProperty*>(*iter)) {
prop->unlisten((SignalListener)updateCheckbox);
} else if (ChoiceProperty* prop = dynamic_cast<ChoiceProperty*>(*iter)) {
prop->unlisten((SignalListener)updateChoice);
}
}
// Clear out the old controls
m_controlsPack->clear();
currentGroup = NULL;
}
// Reset the scrollbar
m_controlsScroll->position(0, 0);
// If there's no group, exit
if (!group) {
m_controlsScroll->redraw();
return;
}
// Constants for slider dimensions
const int packWidth = m_controlsPack->w();
const int textHeight = 20;
const int sliderHeight = 20;
const int chooserHeight = 100;
const int buttonHeight = 20;
// Show them
// For each control, add appropriate objects to the user interface
currentGroup = group;
PropertyList* props = group->getProperties();
for (PropertyList::iterator iter = props->begin();
iter != props->end();
iter++)
{
// Ignore it if it's a group property (those belong in the tree).
if (dynamic_cast<GroupProperty*>(*iter))
continue;
// And now we'll create a UI element for the property.
// The big if-statement below uses dynamic_cast<PropertyType*>(ptr),
// to see if a property has a given type. dynamic_cast will
// return 0 if ptr is not of type PropertyType.
// Add a slider if the property is a RangeProperty
if (RangeProperty* prop = dynamic_cast<RangeProperty*>(*iter)) {
// Add the label
Fl_Box *box = new Fl_Box(0, 0, packWidth, textHeight, (*iter)->getName());
box->labelsize(14);
box->align(FL_ALIGN_LEFT|FL_ALIGN_INSIDE);
box->box(FL_FLAT_BOX); // otherwise, Fl_Scroll messes up (ehsu)
m_controlsPack->add(box);
// Add the slider
Fl_Value_Slider *slider = new Fl_Value_Slider(0, 0, packWidth, sliderHeight);
slider->type(1);
slider->range(prop->getMin(), prop->getMax());
slider->step(prop->getStep());
slider->value(prop->getValue());
m_controlsPack->add(slider);
// Use the step size to determine the number of decimal places
// shown in the slider's label.
if (prop->getStep() > 0) {
slider->precision((int)-log(prop->getStep()));
}
// Have the slider notify the program when it changes
slider->callback((Fl_Callback*)SliderCallback, (void*) prop);
// Have the property notify the slider when it changes
prop->listen((SignalListener)updateRangeSlider, (void*) slider);
// Add a color picker if the property is an RGB property
} else if (RGBProperty* prop = dynamic_cast<RGBProperty*>(*iter)) {
// Add the label
Fl_Box *box = new Fl_Box(0, 0, packWidth, textHeight, (*iter)->getName());
box->align(FL_ALIGN_LEFT|FL_ALIGN_INSIDE);
box->labelsize(14);
box->box(FL_FLAT_BOX); // otherwise, Fl_Scroll messes up (ehsu)
m_controlsPack->add(box);
// Add a color chooser
Fl_Color_Chooser* chooser = new Fl_Color_Chooser(0, 0, packWidth,
chooserHeight);
chooser->rgb(prop->getRed(), prop->getGreen(), prop->getBlue());
m_controlsPack->add(chooser);
// Have the chooser notify the program when it changes
chooser->callback((Fl_Callback*)ColorPickerCallback, (void*) prop);
// Remove any existing color chooser listeners on the property
prop->unlisten((SignalListener)updateColorChooser);
// Have the property notify the chooser when it changes
prop->listen((SignalListener)updateColorChooser, (void*) chooser);
// Add a checkbox if the property is a boolean property
} else if (BooleanProperty* prop = dynamic_cast<BooleanProperty*>(*iter)) {
// Add the checkbox -- no label needed!
Fl_Check_Button* btn = new Fl_Check_Button(0, 0, packWidth, buttonHeight,
prop->getName());
btn->labelsize(14);
btn->type(FL_TOGGLE_BUTTON);
btn->value(prop->getValue());
m_controlsPack->add(btn);
// Have the button notify the program when it changes
btn->callback((Fl_Callback*)ButtonCallback, (void*) prop);
// Remove any existing color chooser listeners on the property
prop->unlisten((SignalListener)updateCheckbox);
// Have the property notify the chooser when it changes
prop->listen((SignalListener)updateCheckbox, (void*) btn);
// Add radio buttons if the property is a choice property
} else if (ChoiceProperty* prop = dynamic_cast<ChoiceProperty*>(*iter)) {
// Add the label
Fl_Box *box = new Fl_Box(0, 0, packWidth, textHeight, (*iter)->getName());
box->align(FL_ALIGN_LEFT|FL_ALIGN_INSIDE);
box->labelsize(14);
box->box(FL_FLAT_BOX); // otherwise, Fl_Scroll messes up (ehsu)
m_controlsPack->add(box);
// Add a group
Fl_Pack* pack = new Fl_Pack(0, 0, packWidth, buttonHeight);
pack->type(Fl_Pack::VERTICAL);
pack->box(FL_THIN_DOWN_FRAME);
pack->user_data((void*) prop);
// Add the radio buttons
const char* choices = prop->getLabels();
int start = 0, end = -1, index = 0;
do {
end++;
if (choices[end] == 0 || choices[end] == '|') {
string str(choices, start, end - start);
Fl_Button* btn = new Fl_Round_Button(0, 0, packWidth, buttonHeight,
prop->getName());
btn->type(FL_RADIO_BUTTON);
btn->copy_label(str.c_str());
btn->value(prop->getValue() == index);
// Have the button notify the program when it changes
btn->callback((Fl_Callback*)ChoiceCallback, (void*)index);
index++;
start = end + 1;
}
} while (choices[end] != 0);
pack->end();
m_controlsPack->add(pack);
// Remove any existing choce listeners on the property
prop->unlisten((SignalListener)updateChoice);
// Have the property update the choices when it changes
prop->listen((SignalListener)updateChoice, (void*) pack);
}
}
m_controlsScroll->redraw();
}
