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From Eric Wing, add outline to help text to make it easier to read on different coloured backgrounds

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This commit is contained in:
Robert Osfield
2006-07-27 11:58:55 +00:00
parent 93933e77ee
commit cd4a24731a
1 changed files with 15 additions and 0 deletions
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15
src/osgProducer/ViewerEventHandler.cpp
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@@ -302,6 +302,7 @@ void ViewerEventHandler::StatsAndHelpDrawCallback::createHelpText()
float bottomOfDescription = 1000.0f;
osg::Vec3 posDescription(0.0f,bottomOfDescription,0.0f);
osg::Vec4 colorDescription(1.0f,1.0f,0.0f,1.0f);
osg::Vec4 backdropColorDescription(0.0f,0.0f,0.0f,1.0f);
float characterSize = 20.0f;
if (!(ocg->getApplicationUsage()->getDescription()).empty())
@@ -314,6 +315,10 @@ void ViewerEventHandler::StatsAndHelpDrawCallback::createHelpText()
text->setPosition(posDescription);
text->setMaximumWidth(maxWidthOfDisplayRegion);
text->setAlignment(osgText::Text::BASE_LINE);
text->setBackdropType(osgText::Text::OUTLINE);
// Probably could use NO_DEPTH_BUFFER and not have any problems
text->setBackdropImplementation(osgText::Text::DEPTH_RANGE);
text->setBackdropColor(backdropColorDescription);
text->setText(ocg->getApplicationUsage()->getDescription());
bottomOfDescription = text->getBound().yMin()-characterSize*2.0f;
@@ -324,6 +329,7 @@ void ViewerEventHandler::StatsAndHelpDrawCallback::createHelpText()
osg::Vec3 posOption(0.0f,bottomOfDescription,0.0f);
osg::Vec4 colorOption(1.0f,1.0f,0.0f,1.0f);
osg::Vec4 backdropColorOption(0.0f,0.0f,0.0f,1.0f);
float maxX = 0.0f;
// create option strings.
@@ -339,6 +345,10 @@ void ViewerEventHandler::StatsAndHelpDrawCallback::createHelpText()
text->setCharacterSize(characterSize);
text->setPosition(posOption);
text->setAlignment(osgText::Text::BASE_LINE);
text->setBackdropType(osgText::Text::OUTLINE);
// Probably could use NO_DEPTH_BUFFER and not have any problems
text->setBackdropImplementation(osgText::Text::DEPTH_RANGE);
text->setBackdropColor(backdropColorOption);
text->setText(citr->first);
if (text->getBound().xMax()>maxX) maxX=text->getBound().xMax();
@@ -349,6 +359,7 @@ void ViewerEventHandler::StatsAndHelpDrawCallback::createHelpText()
osg::Vec3 posExplanation(maxX+characterSize,bottomOfDescription,0.0f);
osg::Vec4 colorExplanation(1.0f,1.0f,0.0f,1.0f);
osg::Vec4 backdropColorExplanation(0.0f,0.0f,0.0f,1.0f);
float maxWidth = maxWidthOfDisplayRegion-maxX;
TextList::iterator oitr;
@@ -367,6 +378,10 @@ void ViewerEventHandler::StatsAndHelpDrawCallback::createHelpText()
text->setPosition(posExplanation);
text->setMaximumWidth(maxWidth);
text->setAlignment(osgText::Text::BASE_LINE);
text->setBackdropType(osgText::Text::OUTLINE);
// Probably could use NO_DEPTH_BUFFER and not have any problems
text->setBackdropImplementation(osgText::Text::DEPTH_RANGE);
text->setBackdropColor(backdropColorExplanation);
text->setText(citr->second);
if (text->getBound().xMax()>maxX) maxX=text->getBound().xMax();