games/vcmi
1
0
Fork 0
mirror of https://github.com/vcmi/vcmi.git synced 2025-11-25 22:42:04 +02:00
Code Issues Releases Activity

Implemented Scrollable class, to server as common base for such classes

Browse Source
This commit is contained in:
Ivan Savenko
2023-05-30 18:10:22 +03:00
parent 6fe00ad55c
commit 052d0d314a
14 changed files with 197 additions and 151 deletions
Download Patch File Download Diff File Expand all files Collapse all files

82
client/widgets/Scrollable.cpp
View File

@@ -10,3 +10,85 @@
#include "StdInc.h"
#include "Scrollable.h"
Scrollable::Scrollable(int used, Point position, Orientation orientation)
: CIntObject(used | WHEEL | GESTURE_PANNING, position)
, scrollStep(1)
, panningDistanceSingle(32)
, panningDistanceAccumulated(0)
, orientation(orientation)
{
}
void Scrollable::panning(bool on)
{
panningDistanceAccumulated = 0;
}
void Scrollable::wheelScrolled(int distance)
{
if (orientation == Orientation::HORIZONTAL)
scrollBy(distance * 3);
else
scrollBy(-distance * 3);
}
void Scrollable::gesturePanning(const Point & distanceDelta)
{
if (orientation == Orientation::HORIZONTAL)
panningDistanceAccumulated += -distanceDelta.x;
else
panningDistanceAccumulated += distanceDelta.y;
if (-panningDistanceAccumulated > panningDistanceSingle )
{
int scrollAmount = (-panningDistanceAccumulated) / panningDistanceSingle;
scrollBy(-scrollAmount);
panningDistanceAccumulated += scrollAmount * panningDistanceSingle;
}
if (panningDistanceAccumulated > panningDistanceSingle )
{
int scrollAmount = panningDistanceAccumulated / panningDistanceSingle;
scrollBy(scrollAmount);
panningDistanceAccumulated += -scrollAmount * panningDistanceSingle;
}
}
int Scrollable::getScrollStep() const
{
return scrollStep;
}
Orientation Scrollable::getOrientation() const
{
return orientation;
}
void Scrollable::scrollNext()
{
scrollBy(+1);
}
void Scrollable::scrollPrev()
{
scrollBy(-1);
}
void Scrollable::setScrollStep(int to)
{
scrollStep = to;
}
void Scrollable::setPanningStep(int to)
{
panningDistanceSingle = to;
}
void Scrollable::setScrollingEnabled(bool on)
{
if (on)
addUsedEvents(WHEEL | GESTURE_PANNING);
else
removeUsedEvents(WHEEL | GESTURE_PANNING);
}