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Fixed label scrolling code

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git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@8048 178a84e3-b1eb-0310-8ba1-8eac791a3b58
This commit is contained in:
auria 2011-03-24 22:51:17 +00:00
parent ebda46f19a
commit 4af41ee77a
2 changed files with 51 additions and 43 deletions
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74
src/guiengine/widgets/label_widget.cpp
View File

@ -61,9 +61,17 @@ void LabelWidget::add()
EGUI_ALIGNMENT valign = EGUIA_CENTER ; //TODO: make label v-align configurable through XML file?
IGUIStaticText* irrwidget;
if (m_scroll_offset)
{
IGUIElement* container = GUIEngine::getGUIEnv()->addButton(widget_size, m_parent, -1);
irrwidget = GUIEngine::getGUIEnv()->addStaticText(message.c_str(), core::rect<s32>( core::position2di(0,0), widget_size.getSize()),
false, word_wrap, /*m_parent*/ container, -1);
}
else
{
irrwidget = GUIEngine::getGUIEnv()->addStaticText(message.c_str(), widget_size,
false, word_wrap, m_parent, -1);
}
#if IRRLICHT_VERSION_MAJOR > 1 || (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR >= 8)
irrwidget->setRightToLeft( translations->isRTLLanguage() );
#endif
@ -89,7 +97,18 @@ void LabelWidget::add()
m_element->setTabStop(false);
m_element->setTabGroup(false);
if (!m_scroll_offset)
{
m_element->setNotClipped(true);
}
if (m_scroll_speed > 0)
{
IGUIFont* font = m_title_font ? GUIEngine::getTitleFont()
: GUIEngine::getFont();
core::dimension2du r = font->getDimension(getText().c_str());
m_scroll_offset = r.Width;
}
} // add
// ----------------------------------------------------------------------------
@ -106,31 +125,13 @@ void LabelWidget::add()
void LabelWidget::setText(const wchar_t *text)
{
m_scroll_offset = 0;
if(m_scroll_speed<=0)
if (m_scroll_speed > 0)
{
m_scroll_offset = m_element->getAbsolutePosition().getWidth();
}
Widget::setText(text);
return;
}
// Now the widget is scrolling. So add enough spaces
// to the left and right of the string so that it scrolls
// in.
IGUIFont* font = m_title_font ? GUIEngine::getTitleFont()
: GUIEngine::getFont();
core::dimension2du r = font->getDimension(stringw(" ").c_str());
unsigned int n = m_w / r.Width+1;
stringw spaces="";
spaces.reserve(n+1); // include end 0
for(unsigned int i=0; i<n; i++)
{
spaces.append(' ');
}
// The c_str is important, otherwise it will call
// LabelWidget::setText(wstring), which will turn
// this function again.
Widget::setText((spaces+text).c_str());
} // setText
// ----------------------------------------------------------------------------
@ -139,15 +140,13 @@ void LabelWidget::setText(const wchar_t *text)
*/
void LabelWidget::update(float dt)
{
m_scroll_offset += dt*m_scroll_speed;
while(m_scroll_offset>1)
if (m_scroll_speed != 0)
{
const core::stringw &w= getText();
// The c_str is important, otherwise it will call
// LabelWidget::setText(wstring), which would add
// more spaces again.
Widget::setText(w.subString(1, w.size()-1).c_str());
m_scroll_offset --;
m_scroll_offset -= dt*m_scroll_speed*5.0f;
//printf("m_scroll_offset = %f; x = %f\n", m_scroll_offset, m_x + m_scroll_offset);
m_element->setRelativePosition( core::position2di( /*m_x +*/ m_scroll_offset, /*m_y*/ 0 ) );
}
} // update
// ----------------------------------------------------------------------------
@ -156,5 +155,14 @@ void LabelWidget::update(float dt)
*/
bool LabelWidget::scrolledOff() const
{
return getText().size()==0;
return m_scroll_offset <= -m_element->getAbsolutePosition().getWidth();
}
// ----------------------------------------------------------------------------
/** Sets horizontal scroll speed. */
void LabelWidget::setScrollSpeed(float speed)
{
m_scroll_offset = -m_element->getAbsolutePosition().getWidth() - 10; // start scrolled off
m_scroll_speed = speed;
} // setScrollSpeed

10
src/guiengine/widgets/label_widget.hpp
View File

@ -56,19 +56,19 @@ namespace GUIEngine
virtual void setText(const wchar_t *text);
virtual void update(float dt);
// --------------------------------------------------------------------
/** Overloaded function which takes a stringw. */
virtual void setText(const irr::core::stringw &s)
{
setText(s.c_str());
}
// --------------------------------------------------------------------
/** Sets horizontal scroll speed. */
void setScrollSpeed(float speed)
{
m_scroll_offset = 0;
m_scroll_speed = speed;
} // setScrollSpeed
void setScrollSpeed(float speed);
// --------------------------------------------------------------------
bool scrolledOff() const;