void PageComponent::base_pointerDown( float inX, float inY ){
inX -= mX;
inY -= mY;
for( int i=0; i<mComponents.size(); i++ ) {
PageComponent *c = *( mComponents.getElement( i ) );
if( c->isVisible() && c->isActive() ) {
c->base_pointerDown( inX, inY );
}
}
pointerDown( inX, inY );
}
int UIList::Do(int id, int x, int y, int w, int h, UIListAdapter *adapter) {
int clicked = 0;
// Pointer and focus handling
// UIList only cares about the first pointer for simplicity.
// Probably not much need to scroll one of these while dragging something
// else.
// TODO: Abstract this stuff out into EmulatePointerEvents
for (int i = 0; i < 1; i++) {
// Check for hover
bool isInside = false;
if (UIRegionHit(i, x, y, w, h, 0)) {
isInside = true;
uistate.hotitem[i] = id;
if (uistate.activeitem[i] == 0 && uistate.mousedown[i]) {
// Mousedown
uistate.activeitem[i] = id;
pointerDown(i, uistate.mousex[i], uistate.mousey[i]);
}
}
if (uistate.activeitem[i] == id) {
// NOTE: won't work with multiple pointers
if (uistate.mousex[i] != lastX || uistate.mousey[i] != lastY) {
pointerMove(i, uistate.mousex[i], uistate.mousey[i], isInside);
}
}
// If button is hot and active, but mouse button is not
// down, the user must have clicked a list item (unless after the last item).
if (uistate.mousedown[i] == 0 &&
uistate.activeitem[i] == id &&
selected != -1) {
if (uistate.hotitem[i] == id) {
clicked = 1;
}
pointerUp(i, uistate.mousex[i], uistate.mousey[i], isInside);
}
}
int itemHeight = adapter->itemHeight(0);
int numItems = adapter->getCount();
// Cap total inertia
if (inertiaY > 20) inertiaY = 20;
if (inertiaY < -20) inertiaY = -20;
float mouseY = uistate.mousey[0];
if (!uistate.mousedown[0]) {
// Let it slide if the pointer is not down
scrollY += inertiaY;
} else if (scrolling /* && mouseY > y && mouseY < y + h*/ ) {
// Pointer is down so stick to it
scrollY = startScrollY - (uistate.mousey[0] - startDragY);
}
// Inertia gradually trails off
inertiaY *= 0.92f;
if (scrolling && fabsf(inertiaY) < 0.001f)
scrolling = false;
// Cap top and bottom softly.
float maxScrollY = numItems * itemHeight - h;
if (maxScrollY < 0.0f) maxScrollY = 0.0f;
if (scrollY > maxScrollY) {
scrollY -= 0.4f * (scrollY - maxScrollY);
} else if (scrollY < 0.0f) {
scrollY += 0.4f * -scrollY;
}
lastX = uistate.mousex[0];
lastY = uistate.mousey[0];
uistate.lastwidget = id;
// Drawing and item hittesting
// render items
for (int i = 0; i < numItems; i++) {
int item_y = y + i * itemHeight - scrollY;
if (item_y >= y - itemHeight && item_y <= y + h) {
for (int k = 0; k < 1; k++) { // MAX_POINTERS if we add back multitouch
if (uistate.mousedown[k] &&
uistate.mouseframesdown[k] >= holdFramesClick &&
adapter->itemEnabled(i) &&
!scrolling &&
selected == -1 &&
UIRegionHit(k, x, item_y, w, itemHeight, 0)) {
selected = i;
} else if (scrolling) {
selected = -1;
}
}
adapter->drawItem(i, x, item_y, w, itemHeight, i == selected);
}
}
// Prevent scroll-clicks from registering
if (selected == -1) clicked = 0;
// Otherwise, no clicky.
return clicked;
}
