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render scrolling text only if necessary

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Signed-off-by: Vincent-FK <vincent.buso@funkey-project.com>
This commit is contained in:
Vincent-FK 2020-03-14 12:16:38 +01:00
parent ebc035c869
commit 5b51c7de41
2 changed files with 29 additions and 21 deletions
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49
RetroFE/Source/Graphics/Component/ReloadableScrollingText.cpp
View File

@ -59,6 +59,7 @@ ReloadableScrollingText::ReloadableScrollingText(Configuration &config, bool sys
, displayOffset_(displayOffset)
, scrollForward_(true)
, needScrolling_(true)
, needRender_(false)
{
text_.clear( );
@ -85,20 +86,22 @@ void ReloadableScrollingText::update(float dt)
}
else
{
if (direction_ == "horizontal")
{
//currentPosition_ += scrollingSpeed_ * dt * scaleX_;
currentPosition_ += (scrollForward_?1.0f:-1.0f) * scrollingSpeed_ * dt * scaleX_;
if (direction_ == "horizontal")
{
//currentPosition_ += scrollingSpeed_ * dt * scaleX_;
currentPosition_ += (scrollForward_?1.0f:-1.0f) * scrollingSpeed_ * dt * scaleX_;
// Sanity check
if(currentPosition_ < -startPosition_ * scaleX_){
currentPosition_ = -startPosition_ * scaleX_;
}
// Sanity check
if(currentPosition_ < -startPosition_ * scaleX_){
currentPosition_ = -startPosition_ * scaleX_;
}
else if (direction_ == "vertical")
{
}
else if (direction_ == "vertical")
{
currentPosition_ += scrollingSpeed_ * dt * scaleY_;
}
}
needRender_ = true;
}
}
@ -141,6 +144,7 @@ void ReloadableScrollingText::initializeFonts( )
void ReloadableScrollingText::reloadTexture( )
{
needRender_ = true;
if (direction_ == "horizontal")
{
@ -705,13 +709,13 @@ void ReloadableScrollingText::draw( )
Font::GlyphInfo glyph;
if (font->getRect( text_[l][i], glyph ))
{
if ( glyph.minX < 0 )
{
curLineWidth += glyph.minX;
}
if ( glyph.minX < 0 )
{
curLineWidth += glyph.minX;
}
char_width = static_cast<int>( glyph.rect.w?glyph.rect.w:glyph.advance );
curLineWidth += char_width;
char_width = static_cast<int>( glyph.rect.w?glyph.rect.w:glyph.advance );
curLineWidth += char_width;
}
}
@ -728,8 +732,9 @@ void ReloadableScrollingText::draw( )
waitStartTime_ <= 0 &&
imageWidth * scale * scaleX_ - currentPosition_ <= imageMaxWidth)
{
waitEndTime_ = endTime_;
scrollForward_ = false;
waitEndTime_ = endTime_;
scrollForward_ = false;
needRender_ = true;
}
else if(!scrollForward_ &&
waitEndTime_ <= 0 &&
@ -738,6 +743,7 @@ void ReloadableScrollingText::draw( )
waitStartTime_ = startTime_;
currentPosition_ = -startPosition_ * scaleX_;
scrollForward_ = true;
needRender_ = true;
}
}
}
@ -959,9 +965,10 @@ bool ReloadableScrollingText::mustRender( )
{
if ( Component::mustRender( ) ) return true;
if (!text_.empty( ) && baseViewInfo.Alpha > 0.0f)
if (!text_.empty( ) && baseViewInfo.Alpha > 0.0f && needRender_)
{
return true;
needRender_ = false;
return true;
}
return false;

1
RetroFE/Source/Graphics/Component/ReloadableScrollingText.h
View File

@ -65,4 +65,5 @@ private:
int displayOffset_;
bool scrollForward_;
bool needScrolling_;
bool needRender_;
};