ilikecats/stk-code_catmod
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Allow to scroll list box by touch gesture.

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It can be restricted to Android-only, but tbh. I don't see any reason that it can't work in the same way on desktop computers (may be usable on laptops with touch screen, all-in-one computers etc...).

I also made a minor fix with if(!event.MouseInput.isLeftPressed()) because the EGET_ELEMENT_FOCUS_LOST event seems to not work at all.
This commit is contained in:
Deve 2017-01-02 21:43:54 +01:00
parent 6a16f23132
commit bcea2355fa
2 changed files with 35 additions and 8 deletions
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41
src/guiengine/widgets/CGUISTKListBox.cpp
View File

@ -25,9 +25,10 @@ CGUISTKListBox::CGUISTKListBox(IGUIEnvironment* environment, IGUIElement* parent
bool drawBack, bool moveOverSelect)
: IGUIElement(EGUIET_LIST_BOX, environment, parent, id, rectangle), Selected(-1),
ItemHeight(0),ItemHeightOverride(0),
TotalItemHeight(0), ItemsIconWidth(0), Font(0), IconBank(0),
ScrollBar(0), selectTime(0), Selecting(false), DrawBack(drawBack),
MoveOverSelect(moveOverSelect), AutoScroll(true), HighlightWhenNotFocused(true)
TotalItemHeight(0), ItemsIconWidth(0), MousePosY(0), Font(0), IconBank(0),
ScrollBar(0), selectTime(0), Selecting(false), Moving(false),
DrawBack(drawBack), MoveOverSelect(moveOverSelect), AutoScroll(true),
HighlightWhenNotFocused(true)
{
#ifdef _DEBUG
setDebugName("CGUISTKListBox");
@ -334,10 +335,12 @@ bool CGUISTKListBox::OnEvent(const SEvent& event)
case gui::EGET_ELEMENT_FOCUS_LOST:
{
if (event.GUIEvent.Caller == this)
{
Moving = false;
Selecting = false;
}
break;
}
default:
break;
}
@ -356,21 +359,43 @@ bool CGUISTKListBox::OnEvent(const SEvent& event)
case EMIE_LMOUSE_PRESSED_DOWN:
{
Selecting = true;
Moving = false;
MousePosY = event.MouseInput.Y;
return true;
}
case EMIE_LMOUSE_LEFT_UP:
{
Selecting = false;
if (isPointInside(p))
if (isPointInside(p) && !Moving)
selectNew(event.MouseInput.Y);
Selecting = false;
Moving = false;
return true;
}
case EMIE_MOUSE_MOVED:
if (Selecting || MoveOverSelect)
if (!event.MouseInput.isLeftPressed())
{
Selecting = false;
Moving = false;
}
if (Selecting &&
fabs(event.MouseInput.Y - MousePosY) > ItemHeight/3)
{
Moving = true;
Selecting = false;
}
if (Moving)
{
int pos = ScrollBar->getPos() - event.MouseInput.Y + MousePosY;
ScrollBar->setPos(pos);
MousePosY = event.MouseInput.Y;
}
else if (Selecting || MoveOverSelect)
{
if (isPointInside(p))
{

2
src/guiengine/widgets/CGUISTKListBox.hpp
View File

@ -178,12 +178,14 @@ namespace irr
s32 ItemHeightOverride;
s32 TotalItemHeight;
s32 ItemsIconWidth;
s32 MousePosY;
gui::IGUIFont* Font;
gui::IGUISpriteBank* IconBank;
gui::IGUIScrollBar* ScrollBar;
u32 selectTime;
core::stringw KeyBuffer;
bool Selecting;
bool Moving;
bool DrawBack;
bool MoveOverSelect;
bool AutoScroll;