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Limit OptionListComponent to 5 entries on screen.

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Can now hold up/down to scroll OptionListComponent.
This commit is contained in:
Aloshi 2013-10-26 15:57:46 -05:00
parent 68841aa654
commit fb55b1cd91
1 changed files with 64 additions and 18 deletions
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70
src/components/OptionListComponent.h
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@ -167,7 +167,7 @@ private:
{ {
public: public:
OptionListPopup(Window* window, OptionListComponent<T>& optList) : GuiComponent(window), OptionListPopup(Window* window, OptionListComponent<T>& optList) : GuiComponent(window),
mOptList(optList), mBox(window, ":/textbox.png"), mCursor(0), mScrollOffset(0) mOptList(optList), mBox(window, ":/textbox.png"), mCursor(0), mScrollOffset(0), mCursorTimer(0)
{ {
//find global position //find global position
GuiComponent* p = &mOptList; GuiComponent* p = &mOptList;
@ -185,7 +185,11 @@ private:
std::shared_ptr<Font> font = mOptList.getFont(); std::shared_ptr<Font> font = mOptList.getFont();
unsigned int renderCount = mTextCaches.size() - mScrollOffset; unsigned int renderCount = getPageSize();
if(renderCount + mScrollOffset > mTextCaches.size())
renderCount = mTextCaches.size() - mScrollOffset;
unsigned int renderTo = mScrollOffset + renderCount;
float height = (float)renderCount * font->getHeight(); float height = (float)renderCount * font->getHeight();
trans.translate(Eigen::Vector3f(0, -height / 2 + font->getHeight() * 0.5f, 0)); trans.translate(Eigen::Vector3f(0, -height / 2 + font->getHeight() * 0.5f, 0));
@ -196,7 +200,7 @@ private:
Renderer::setMatrix(trans); Renderer::setMatrix(trans);
Renderer::drawRect(0, 0, (int)getSize().x(), (int)height, 0xFFFFFFFF); Renderer::drawRect(0, 0, (int)getSize().x(), (int)height, 0xFFFFFFFF);
for(unsigned int i = mScrollOffset; i < renderCount; i++) for(unsigned int i = mScrollOffset; i < renderTo; i++)
{ {
Renderer::setMatrix(trans); Renderer::setMatrix(trans);
@ -232,29 +236,64 @@ private:
return true; return true;
} }
if(mOptList.mEntries.size() > 1)
{
if(config->isMappedTo("up", input)) if(config->isMappedTo("up", input))
{ {
if(mCursor > 0) mCursorDir = -1;
mCursor--; mCursorTimer = -350;
moveCursor();
return true; return true;
} }
if(config->isMappedTo("down", input)) if(config->isMappedTo("down", input))
{ {
if(mCursor < mOptList.mEntries.size() - 1) mCursorDir = 1;
mCursor++; mCursorTimer = -350;
moveCursor();
return true; return true;
} }
} }else{
if(config->isMappedTo("up", input) || config->isMappedTo("down", input))
mCursorDir = 0;
} }
return GuiComponent::input(config, input); return GuiComponent::input(config, input);
} }
void update(int deltaTime)
{
if(mCursorDir != 0)
{
mCursorTimer += deltaTime;
while(mCursorTimer >= 100)
{
moveCursor();
mCursorTimer -= 100;
}
}
}
private: private:
void moveCursor()
{
if(mOptList.mEntries.size() == 0)
return;
if(mCursorDir < 0) //scroll up
{
if(mCursor > 0)
mCursor--;
if(mCursor < mScrollOffset)
mScrollOffset--;
}else if(mCursorDir > 0) //scroll down
{
if(mCursor < mOptList.mEntries.size() - 1)
mCursor++;
if(mCursor - mScrollOffset >= getPageSize())
mScrollOffset++;
}
}
void close() void close()
{ {
delete this; delete this;
@ -277,10 +316,17 @@ private:
} }
} }
unsigned int getPageSize()
{
return 5;
}
OptionListComponent<T>& mOptList; OptionListComponent<T>& mOptList;
NinePatchComponent mBox; NinePatchComponent mBox;
unsigned int mCursor; unsigned int mCursor;
int mCursorDir;
int mCursorTimer;
unsigned int mScrollOffset; unsigned int mScrollOffset;
std::vector<TextCache*> mTextCaches; std::vector<TextCache*> mTextCaches;
}; };