From Trajce Nikolov, various improvements of the workings of osgWidget::Input.
This commit is contained in:
Robert Osfield
@@ -6,160 +6,366 @@
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namespace osgWidget {
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class BlinkCursorCallback: public osg::Drawable::DrawCallback
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{
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public:
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BlinkCursorCallback(const bool& insertMode)
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: _insertMode(insertMode)
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{
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}
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virtual void drawImplementation( osg::RenderInfo & ri,const osg::Drawable* drawable ) const
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{
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static bool on = true;
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static osg::Timer_t startTime = osg::Timer::instance()->tick();
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osg::Timer_t now = osg::Timer::instance()->tick();
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if (osg::Timer::instance()->delta_s(startTime,now)>(_insertMode?0.125:0.25))
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{
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on = !on;
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startTime = now;
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}
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if (on)
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drawable->drawImplementation(ri);
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}
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protected:
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const bool& _insertMode;
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};
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Input::Input(const std::string& name, const std::string& label, unsigned int size):
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Label (name, label),
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_xoff (0.0f),
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_xoff (0.0f),
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_yoff (0.0f),
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_index (0),
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_size (0),
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_cursorIndex (0),
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_textLength (0),
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_maxSize (size),
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_insertMode (false),
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_cursor (new Widget("cursor")) {
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_text->setAlignment(osgText::Text::LEFT_BOTTOM_BASE_LINE);
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_text->setKerningType(osgText::KERNING_NONE);
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_text->setAlignment(osgText::Text::LEFT_BOTTOM_BASE_LINE);
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_text->setKerningType(osgText::KERNING_NONE);
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// Make the cursor un-copyable.
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_cursor->setCanClone(false);
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_cursor->setDataVariance(osg::Object::DYNAMIC);
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_cursor->setColor(0.0f, 0.0f, 0.0f, 1.0f);
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// Make the cursor un-copyable.
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_cursor->setCanClone(false);
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_cursor->setDataVariance(osg::Object::DYNAMIC);
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_cursor->setColor(0.0f, 0.0f, 0.0f, 1.0f);
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setEventMask(
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// For showing/hiding the "cursor."
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EVENT_MASK_FOCUS |
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// For keypresses, obviously.
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EVENT_MASK_KEY |
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// For "click" focusing.
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EVENT_MOUSE_PUSH
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);
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setEventMask(
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// For showing/hiding the "cursor."
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EVENT_MASK_FOCUS |
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// For keypresses, obviously.
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EVENT_MASK_KEY |
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// For "click" focusing.
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EVENT_MOUSE_PUSH
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);
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_offsets.resize(size, 0.0f);
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_offsets.resize(size+1, 0.0f);
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_widths.resize(size+1, 1.0f);
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_text->getText().resize(size, ' ');
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_text->update();
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_text->getText().resize(size, ' ');
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_text->update();
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_cursor->setDrawCallback( new BlinkCursorCallback(_insertMode) );
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}
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void Input::_calculateSize(const XYCoord& size) {
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// An Input cannot currently set it's own size RELIABLY until the osgText implementation
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// is dratiscally improved. I'm getting wildly crazy results. :(
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// point_type height = size.y() > _cursor->getHeight() ? size.y() : _cursor->getHeight();
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// An Input cannot currently set it's own size RELIABLY until the osgText implementation
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// is dratiscally improved. I'm getting wildly crazy results. :(
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// point_type height = size.y() > _cursor->getHeight() ? size.y() : _cursor->getHeight();
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#if 0
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point_type width = size.x() + _cursor->getWidth();
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point_type height = _cursor->getHeight();
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point_type width = size.x() + _cursor->getWidth();
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point_type height = _cursor->getHeight();
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if(width > getWidth()) setWidth(osg::round(width));
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if(width > getWidth()) setWidth(osg::round(width));
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if(height > getHeight()) setHeight(osg::round(height));
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if(height > getHeight()) setHeight(osg::round(height));
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#endif
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}
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void Input::_calculateCursorOffsets() {
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// Determine the "offset"
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const osgText::Text::TextureGlyphQuadMap& tgqm = _text->getTextureGlyphQuadMap();
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// Determine the "offset"
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const osgText::Text::TextureGlyphQuadMap::const_iterator tgqmi = tgqm.begin();
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const osgText::Text::GlyphQuads& gq = tgqmi->second;
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if (_text->getText().size()==0)
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{
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_offsets[0] = 0;
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_widths[0] = 0;
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return;
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}
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osg::Vec3 pos = _text->getPosition();
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for(unsigned int i = 0; i < _maxSize; i++) {
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osg::Vec3 ul = gq.getTransformedCoords(0)[0 + (i * 4)];
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osg::Vec3 ll = gq.getTransformedCoords(0)[1 + (i * 4)];
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osg::Vec3 lr = gq.getTransformedCoords(0)[2 + (i * 4)];
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osg::Vec3 ur = gq.getTransformedCoords(0)[3 + (i * 4)];
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_offsets[i] = lr.x() - pos.x();
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// warn() << "vb: " << gq.getGlyphs()[i]->getHorizontalBearing() << std::endl;
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osgText::Text::TextureGlyphQuadMap& tgqm = const_cast<osgText::Text::TextureGlyphQuadMap&>(_text->getTextureGlyphQuadMap());
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osgText::Text::TextureGlyphQuadMap::iterator tgqmi = tgqm.begin();
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std::vector<osg::Vec2> coords;
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std::vector<osgText::Font::Glyph*> glyphs;
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for ( ; tgqmi != tgqm.end(); tgqmi++ )
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{
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const osgText::Text::GlyphQuads& gq = tgqmi->second;
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//coords.insert(coords.end(),gq.getTransformedCoords(0).begin(),gq.getTransformedCoords(0).end());
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coords.insert(coords.end(),gq.getCoords().begin(),gq.getCoords().end());
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for (unsigned int i=0; i<gq.getGlyphs().size(); ++i)
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{
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glyphs.push_back(gq.getGlyphs().at(i));
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}
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}
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std::list<unsigned int> keys;
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for (unsigned int i=0; i<_text->getText().size(); ++i)
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{
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keys.push_back(_text->getText().at(i));
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}
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unsigned int idx=0;
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osg::Vec2 lr;
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osg::Vec2 ll;
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while (!keys.empty())
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{
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unsigned int key = keys.front();
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for (unsigned int i=0; i<glyphs.size(); ++i)
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{
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osgText::Font::Glyph* g = glyphs.at(i);
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if (g->getGlyphCode()==key)
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{
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lr = coords[2 + (i * 4)];
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ll = coords[1 + (i * 4)];
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point_type width = lr.x() - ll.x();
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_widths[idx] = width == 0 ? g->getHorizontalAdvance() : width;
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_offsets[idx] = lr.x() + pos.x();
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if (width == 0)
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_offsets[idx] += g->getHorizontalAdvance();
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++idx;
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glyphs.erase(glyphs.begin()+i);
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coords.erase(coords.begin()+i*4);
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coords.erase(coords.begin()+i*4);
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coords.erase(coords.begin()+i*4);
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coords.erase(coords.begin()+i*4);
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break;
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}
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}
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keys.pop_front();
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}
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_offsets[idx] = lr.x() + pos.x();
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_widths[idx]= 1.f;
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_wordsOffsets.clear();
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for ( unsigned int i=0; i<_text->getText().size(); ++i )
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{
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while (i<_text->getText().size() && _text->getText().at(i)==' ') ++i;
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if (i<_text->getText().size())_wordsOffsets.push_back(i);
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while (i<_text->getText().size() && _text->getText().at(i)!=' ') ++i;
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}
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positioned();
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}
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bool Input::focus(WindowManager*) {
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_cursor->setColor(0.0f, 0.0f, 0.0f, 1.0f);
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bool Input::focus(const WindowManager*) {
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_cursor->setColor(0.5f, 0.5f, 0.6f, 1.0f);
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return true;
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return true;
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}
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bool Input::unfocus(WindowManager*) {
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_cursor->setColor(0.0f, 0.0f, 0.0f, 0.0f);
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bool Input::unfocus(const WindowManager*) {
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_cursor->setColor(0.0f, 0.0f, 0.0f, 0.0f);
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return true;
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return true;
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}
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void Input::parented(Window* parent) {
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Label::parented(parent);
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Label::parented(parent);
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_cursor->setSize(2.0f, _text->getCharacterHeight());
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_cursor->setSize(_widths[_index], getHeight());
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if(_cursorIndex) parent->getGeode()->setDrawable(_cursorIndex, _cursor.get());
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if(_cursorIndex) parent->getGeode()->setDrawable(_cursorIndex, _cursor.get());
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else _cursorIndex = parent->addDrawableAndGetIndex(_cursor.get());
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else _cursorIndex = parent->addDrawableAndGetIndex(_cursor.get());
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}
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void Input::positioned() {
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point_type ln = static_cast<point_type>(_text->getLineCount());
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point_type ln = static_cast<point_type>(_text->getLineCount());
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ln = ln == 0.0f ? 1.0f : ln;
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ln = ln == 0.0f ? 1.0f : ln;
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// point_type th = (_text->getCharacterHeight() * ln) + (_text->getLineSpacing() * (ln - 1.0f));
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// point_type th = (_text->getCharacterHeight() * ln) + (_text->getLineSpacing() * (ln - 1.0f));
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point_type x = getX() + _xoff;
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point_type y = getY() + _yoff;
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point_type x = getX() + _xoff;
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point_type y = getY() + _yoff;
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// XYCoord size = getTextSize();
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// XYCoord size = getTextSize();
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_text->setPosition(osg::Vec3(x, y, _calculateZ(LAYER_MIDDLE)));
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point_type xoffset = _index > 0 ? _offsets[_index - 1] : 0.0f;
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_text->setPosition(osg::Vec3(x, y, _calculateZ(LAYER_MIDDLE)));
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_cursor->setOrigin(x + xoffset + 1.0f, y + 1.0f);
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_cursor->setZ(_calculateZ(LAYER_MIDDLE));
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point_type xoffset = _index > 0 ? _offsets[_index - 1] : 0.0f;
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_cursor->setSize(_widths[_index], getHeight());
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_cursor->setOrigin(getX() + xoffset, getY() );
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_cursor->setZ(_calculateZ(LAYER_MIDDLE-1));
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}
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bool Input::keyUp(int key, int mask, WindowManager*) {
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return false;
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bool Input::keyUp(int key, int mask, const WindowManager*) {
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return false;
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}
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bool Input::keyDown(int key, int mask, WindowManager*) {
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osgText::String& s = _text->getText();
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bool Input::keyDown(int key, int mask, const WindowManager*) {
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osgText::String& s = _text->getText();
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if(key == osgGA::GUIEventAdapter::KEY_BackSpace) {
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if(_index >= 1) {
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// s.erase(s.begin() + (_index - 1));
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s[_index - 1] = ' ';
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switch (key)
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{
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case osgGA::GUIEventAdapter::KEY_Left:
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if (mask & osgGA::GUIEventAdapter::MODKEY_CTRL)
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{
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bool found = false;
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for (unsigned int i=0; i<_wordsOffsets.size()-1; ++i)
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{
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if (_wordsOffsets.at(i) < _index && _index <= _wordsOffsets.at(i+1))
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{
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found = true;
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_index = _wordsOffsets.at(i);
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break;
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}
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}
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if (!found && _wordsOffsets.size())
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{
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_index = _wordsOffsets.at(_wordsOffsets.size()-1);
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}
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}
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else
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if (_index>0)
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{
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--_index;
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}
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break;
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case osgGA::GUIEventAdapter::KEY_Right:
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if (mask & osgGA::GUIEventAdapter::MODKEY_CTRL)
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{
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bool found = false;
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for (unsigned int i=0; i<_wordsOffsets.size()-1; ++i)
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{
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if (_wordsOffsets.at(i) <= _index && _index < _wordsOffsets.at(i+1))
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{
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found = true;
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_index = _wordsOffsets.at(i+1);
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break;
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}
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}
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if (!found && _wordsOffsets.size())
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{
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_index = _wordsOffsets.at(_wordsOffsets.size()-1);
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}
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}
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else
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if (_index<_textLength)
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{
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++_index;
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}
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break;
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case osgGA::GUIEventAdapter::KEY_Home:
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_index = 0;
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break;
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case osgGA::GUIEventAdapter::KEY_End:
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_index = _textLength;
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break;
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case osgGA::GUIEventAdapter::KEY_Insert:
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_insertMode = !_insertMode;
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break;
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case osgGA::GUIEventAdapter::KEY_Delete:
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if (mask & osgGA::GUIEventAdapter::MODKEY_CTRL)
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{
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point_type deleteToIdx = _textLength;
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for (unsigned int i=0; i<_wordsOffsets.size()-1; ++i)
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{
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if (_wordsOffsets.at(i) <= _index && _index < _wordsOffsets.at(i+1))
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{
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deleteToIdx = _wordsOffsets.at(i+1);
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break;
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}
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}
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for (unsigned int i=0; i < s.size()-_index; ++i)
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{
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s[_index+i] = deleteToIdx+i < s.size() ? s[deleteToIdx+i] : ' ';
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}
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_text->update();
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_calculateCursorOffsets();
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_index--;
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_textLength -= deleteToIdx-_index;
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}
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}
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else
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if (_index < s.size()-1)
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{
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for (unsigned int i=_index; i < s.size()-1; ++i)
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{
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s[i] = s[i+1];
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}
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else {
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_text->update();
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_calculateCursorOffsets();
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--_textLength;
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}
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break;
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case osgGA::GUIEventAdapter::KEY_BackSpace:
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if(_index >= 1) {
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_index--;
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if (_index< s.size()-1)
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{
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for (unsigned int i=_index; i < s.size()-1; ++i)
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{
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s[i] = s[i+1];
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s[i+1] = ' ';
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}
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}
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else
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{
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s[s.size()-1] = ' ';
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}
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_text->update();
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_calculateCursorOffsets();
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--_textLength;
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}
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break;
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default:
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if(key > 255 || _index >= _maxSize) return false;
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// else if(_index < s.size()) s.insert(s.begin() + _index, key);
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// else if(_index == s.size()) s.push_back(key);
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if (!_insertMode)
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{
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for (unsigned int i=s.size()-1; i>_index; --i)
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{
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s[i] = s[i-1];
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}
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}
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s[_index] = key;
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_text->update();
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_calculateCursorOffsets();
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s[_index] = key;
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_index++;
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}
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_text->update();
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// _text->update();
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_calculateCursorOffsets();
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_calculateSize(getTextSize());
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_index++;
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getParent()->resize();
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if (!_insertMode) ++_textLength;
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}
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return false;
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// _text->update();
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_calculateSize(getTextSize());
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getParent()->resize();
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return false;
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}
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void Input::setCursor(Widget*) {
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@@ -168,23 +374,22 @@ void Input::setCursor(Widget*) {
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unsigned int Input::calculateBestYOffset(const std::string& s)
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{
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const osgText::FontResolution fr(static_cast<unsigned int>(_text->getCharacterHeight()),
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static_cast<unsigned int>(_text->getCharacterHeight()));
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const osgText::FontResolution fr(static_cast<unsigned int>(_text->getCharacterHeight()),
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static_cast<unsigned int>(_text->getCharacterHeight()));
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osgText::String utf(s);
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osgText::String utf(s);
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unsigned int descent = 0;
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unsigned int descent = 0;
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for(osgText::String::iterator i = utf.begin(); i != utf.end(); i++) {
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osgText::Font* font = const_cast<osgText::Font*>(_text->getFont());
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osgText::Font::Glyph* glyph = font->getGlyph(fr, *i);
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unsigned int d = abs((int)glyph->getHorizontalBearing().y());
|
||||
for(osgText::String::iterator i = utf.begin(); i != utf.end(); i++) {
|
||||
osgText::Font* font = const_cast<osgText::Font*>(_text->getFont());
|
||||
osgText::Font::Glyph* glyph = font->getGlyph(fr, *i);
|
||||
unsigned int d = abs((int)glyph->getHorizontalBearing().y());
|
||||
|
||||
if(d > descent) descent = d;
|
||||
}
|
||||
if(d > descent) descent = d;
|
||||
}
|
||||
|
||||
return descent;
|
||||
return descent;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user