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Make it a bit easier to select stuff in lists.

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This commit is contained in:
Henrik Rydgard 2013-03-11 00:24:40 +01:00
parent 4fb2e97afa
commit ac86ea83be
2 changed files with 6 additions and 1 deletions
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6
ui/ui.cpp
View File

@ -280,6 +280,7 @@ void StringVectorListAdapter::drawItem(int item, int x, int y, int w, int h, boo
UIList::UIList()
: scrollY(0.0f), startDragY(0.0f), dragFinger(-1), selected(-1) {
movedDistanceX = 0.0f;
movedDistanceY = 0.0f;
scrolling = false;
inertiaY = 0.0f;
@ -292,14 +293,17 @@ void UIList::pointerDown(int pointer, float x, float y) {
startScrollY = scrollY;
startDragY = y;
movedDistanceX = 0.0f;
movedDistanceY = 0.0f;
}
const int holdFrames = 6;
void UIList::pointerMove(int pointer, float x, float y, bool inside) {
float deltaX = x - lastX;
float deltaY = y - lastY;
movedDistanceY += fabsf(deltaY);
movedDistanceX += fabsf(deltaX);
if (inertiaY <= 0.0f && deltaY > 0.0f) {
inertiaY = -deltaY;
@ -309,7 +313,7 @@ void UIList::pointerMove(int pointer, float x, float y, bool inside) {
inertiaY = 0.8 * inertiaY + 0.2 * -deltaY;
}
if (inside && movedDistanceY > 10 && !scrolling && uistate.mouseframesdown[0] > holdFrames) {
if (inside && movedDistanceY > 35 && movedDistanceY > movedDistanceX && !scrolling && uistate.mouseframesdown[0] > holdFrames) {
scrolling = true;
}
}

1
ui/ui.h
View File

@ -220,6 +220,7 @@ public:
float lastX;
float lastY;
float startDragY;
float movedDistanceX;
float movedDistanceY;
float inertiaY;