void IntroWidget::prepareMove() {
if (App::app()) App::app()->mtpPause();
if (_cacheHide.isNull() || _cacheHideIndex != current) makeHideCache();
stages[current + moving]->prepareShow();
if (_cacheShow.isNull() || _cacheShowIndex != current + moving) makeShowCache();
int32 m = (moving > 0) ? 1 : -1;
a_coordHide = anim::ivalue(0, -m * st::introSlideShift);
a_opacityHide = anim::fvalue(1, 0);
a_coordShow = anim::ivalue(m * st::introSlideShift, 0);
a_opacityShow = anim::fvalue(0, 1);
_a_stage.start();
_backTo = stages[current + moving]->hasBack() ? 1 : 0;
_backFrom = stages[current]->hasBack() ? 1 : 0;
_a_stage.step();
if (_backFrom > 0 || _backTo > 0) {
_back.show();
} else {
_back.hide();
}
stages[current]->deactivate();
stages[current + moving]->hide();
}
void IntroWidget::onDoneStateChanged(int oldState, ButtonStateChangeSource source) {
if (_a_stage.animating()) return;
if (source == ButtonByPress) {
if (oldState & Button::StateDown) {
_cacheHide = QPixmap();
} else {
makeHideCache();
}
} else if (source == ButtonByHover && current != 2) {
if (!createNext()) return;
if (!_cacheShow) makeShowCache(current + 1);
}
}
void IntroWidget::prepareMove() {
if (cacheForHide.isNull() || cacheForHideInd != current) makeHideCache();
if (cacheForShow.isNull() || cacheForShowInd != current + moving) makeShowCache();
xCoordHide = anim::ivalue(0, -moving * st::introSlideShift);
cAlphaHide = anim::fvalue(1, 0);
xCoordShow = anim::ivalue(moving * st::introSlideShift, 0);
cAlphaShow = anim::fvalue(0, 1);
anim::start(this);
stages[current]->deactivate();
stages[current + moving]->hide();
}
