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winamp/Src/Wasabi/api/wndmgr/alphamgr.cpp

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#include <precomp.h>
#include "alphamgr.h"
#include <api/wndmgr/layout.h>
#include <api/skin/skinparse.h>
#ifdef _WIN32
#include <tataki/blending/blending.h>
#endif
#include <bfc/util/profiler.h>
#include <bfc/wasabi_std_wnd.h>
#ifndef PI
#define PI 3.1415926536
#endif
#define ALPHAMGR_HOVERCHECK 100
#define ALPHAMGR_UPDATEALPHA 200
AlphaMgr::AlphaMgr() {
overlayout = NULL;
timerclient_setTimer(ALPHAMGR_HOVERCHECK, 200);
alllinked = 0;
autoopacify = 0;
fast_timer_on = 0;
big_curtransparency = 0;
big_status = STATUS_UNKNOWN;
big_startalpha = 0;
big_lasttimein = 0;
extend_px = 0;
global_alpha = 0;
big_enterleave_time = 0;
fadein_ms = 1;
fadeout_ms = 1;
holdtime_ms = 1;
}
AlphaMgr::~AlphaMgr()
{
timerclient_killTimer(ALPHAMGR_HOVERCHECK);
}
void AlphaMgr::addLayout(Layout *l)
{
checkTimer();
if (layouts.findItem((const wchar_t *)l))
return;
layouts.addItem(new AlphaMgrEntry(l));
}
void AlphaMgr::removeLayout(Layout *l) {
int p=-1;
AlphaMgrEntry *e = layouts.findItem((const wchar_t *)l, &p);
if (p != -1) {
if (e->getStatus() == STATUS_IN_FADINGON || e->getStatus() == STATUS_IN_ON) {
updateInList(e, 0);
checkTimer();
}
layouts.removeByPos(p);
in_layouts.removeItem(e);
delete e;
checkTimer();
}
}
// gets the currently needed transparency, according to layout overrides and global link, and then applies this
// transparency to the layout, it does not change anything in any data structure, this is only a visual update function
void AlphaMgr::updateTransparency(Layout *l) {
if (!l) return;
if (l->isInited()) {
if (l->isTransparencySafe()) {
int a = l->getTransparencyOverride();
if (a == -1) {
if (l->getNoParent()!=1) {
if (a == -1 && hasAutoOpacity(l))
a = getTransparency(l);
else if (a == -1 && getAllLinked())
a = getGlobalAlpha();
}
if (a == -1) {
/* why the hell would it care if it's alllinked if it's an independent window ?? (noparent=1)
if (getAllLinked())
a = getGlobalAlpha();
else
*/
a = l->getPaintingAlpha();
}
}
l->setTransparency(a);
} else {
l->setTransparency(255);
}
}
}
// returns the alpha value for this slot, that's not necessarily the transparency that should be applied to the layout
// since overrides & calculations in updateTransparency and getTransparency should apply.
int AlphaMgr::getAlpha(AlphaMgrEntry *e) {
if (alllinked && e->getLayout()->getNoParent() != 1) return getGlobalAlpha();
return e->getLayout()->getAlpha();
}
int AlphaMgr::getAlpha(Layout *l) {
int p=-1;
AlphaMgrEntry *e = layouts.findItem((const wchar_t *)l, &p);
if (p != -1) return getAlpha(e);
return l->getAlpha();
}
int AlphaMgr::getGlobalAlpha() {
return global_alpha;
}
void AlphaMgr::updateAllTransparency() {
foreach(layouts)
updateTransparency(layouts.getfor()->getLayout());
endfor;
}
void AlphaMgr::setGlobalAlpha(int a) {
global_alpha = a;
updateAllTransparency();
}
int AlphaMgr::getCurve(AlphaMgrEntry *e) {
int n;
int status = e ? e->getStatus() : getBigStatus();
if (e == NULL) {
n = MulDiv(Wasabi::Std::getTickCount()-getBigEnterLeaveTime(),256,status == STATUS_IN_FADINGON ? fadein_ms : fadeout_ms);
if (n > 255) n = 255; if (n < 0) n = 0;
} else {
if (e->getEnterLeaveTime() == -1) return -1;
n = MulDiv(Wasabi::Std::getTickCount()-e->getEnterLeaveTime(),256,status == STATUS_IN_FADINGON ? fadein_ms : fadeout_ms);
if (n > 255) n = 255; if (n < 0) n = 0;
}
return n;
}
// returns the value of the transparency if no override applies, you still need to check overrides (see updatetransparency)
int AlphaMgr::getTransparency(Layout *l) {
if (getAutoOpacify())
l = NULL;
if (l == NULL) {
if (getBigStatus() == STATUS_UNKNOWN) {
setBigStatus(STATUS_OUT_OFF);
Layout *main = SkinParser::getMainLayout();
if (main)
big_curtransparency = main->getTransparency();
else
big_curtransparency = 255;
}
}
AlphaMgrEntry *e = NULL;
if (l) e = layouts.findItem((const wchar_t *)l);
int s = e ? e->getStatus() : getBigStatus();
if (e && s == STATUS_UNKNOWN) {
initStatus(e);
s = e->getStatus();
}
switch (s) {
case STATUS_IN_OFF: return e ? getAlpha(e) : getGlobalAlpha();
case STATUS_OUT_OFF: return e ? getAlpha(e) : getGlobalAlpha();
case STATUS_IN_ON: return 255;
case STATUS_OUT_FADINGOUT: {
int n = e ? getCurve(e) : getCurve(NULL);
float sintrans = (float)(sin(((float)n/255)*PI-PI/2)/2+0.5);
int na;
if (e)
na = (int)(((float)(getAlpha(e) - e->getStartAlpha()) * sintrans) + e->getStartAlpha());
else
na = (int)(((float)(getGlobalAlpha() - getBigStartAlpha()) * sintrans) + getBigStartAlpha());
return na;
}
case STATUS_IN_FADINGON: {
int n = e ? getCurve(e) : getCurve(NULL);
float sintrans = (float)(sin(((float)n/255)*PI-PI/2)/2+0.5);
int na;
if (e)
na = (int)(((float)(255 - e->getStartAlpha()) * sintrans) + e->getStartAlpha());
else
na = (int)(((float)(255 - getBigStartAlpha()) * sintrans) + getBigStartAlpha());
return na;
}
default: return e ? getAlpha(e) : getGlobalAlpha();
}
}
int AlphaMgr::hasAutoOpacityOnHover(Layout *l) {
AlphaMgrEntry *e = layouts.findItem((const wchar_t *)l);
if (e) return hasAutoOpacityOnHover(e);
return 0;
}
int AlphaMgr::hasAutoOpacity(Layout *l) {
AlphaMgrEntry *e = layouts.findItem((const wchar_t *)l);
if (e) return hasAutoOpacity(e);
return 0;
}
int AlphaMgr::hasAutoOpacityOnFocus(Layout *l) {
AlphaMgrEntry *e = layouts.findItem((const wchar_t *)l);
if (e) return hasAutoOpacityOnFocus(e);
return 0;
}
int AlphaMgr::hasAutoOpacityOnFocus(AlphaMgrEntry *e) {
if (alllinked) return autoopacify == 2;
return e->getLayout()->getAutoOpacify() == 2 && e->getLayout()->getNoParent() != 1;
}
int AlphaMgr::hasAutoOpacityOnHover(AlphaMgrEntry *e) {
if (alllinked) return autoopacify == 1;
return e->getLayout()->getAutoOpacify() == 1 && e->getLayout()->getNoParent() != 1;
}
int AlphaMgr::hasAutoOpacity(AlphaMgrEntry *e) {
if (alllinked) return autoopacify;
return e->getLayout()->getAutoOpacify() && e->getLayout()->getNoParent() != 1;
}
// we got a new layout to manage, and its status flags is not set, we should init it to something safe
void AlphaMgr::initStatus(AlphaMgrEntry *l, int applytransparency) {
if (isMouseInLayout(l->getLayout())) {
l->setEnterLeaveTime((uint32_t)-1);
if (hasAutoOpacity(l)) {
l->setStatus(STATUS_IN_FADINGON);
l->onEnterLeave();
l->setStartAlpha(l->getLayout()->getTransparency());
checkTimer();
} else {
l->setStatus(STATUS_IN_OFF);
}
l->getLayout()->onMouseEnterLayout();
} else {
if (hasAutoOpacityOnHover(l)) {
l->setStartAlpha(l->getLayout()->getTransparency());
l->onEnterLeave();
l->setStatus(STATUS_OUT_FADINGOUT);
checkTimer();
} else {
l->setStatus(STATUS_OUT_OFF);
}
l->getLayout()->onMouseLeaveLayout();
}
if (applytransparency) updateTransparency(l->getLayout());
}
int AlphaMgr::isPointInLayout(Layout *l, int x, int y, api_region **rgn)
{
api_region *rg = NULL;
if (!l) return 0;
if (!l->isVisible()) return 0;
RECT r,r2;
l->getClientRect(&r);
if (l->renderRatioActive()) l->multRatio(&r);
l->getWindowRect(&r2);
Wasabi::Std::offsetRect(&r, r2.left, r2.top);
// OffsetRect(&r, r2.left, r2.top);
if (x < r.left || x > r.right || y < r.top || y > r.bottom) return 0;
if (rgn) {
if (!*rgn) {
rg = l->getComposedRegion();
*rgn = rg;
} else {
rg = *rgn;
}
} else {
rg = l->getComposedRegion();
}
if (!rgn) return 1;
x -= r.left; y -= r.top;
POINT pt={x,y};
if (l->renderRatioActive()) l->divRatio((int*)&pt.x, (int*)&pt.y);
if (l->getComposedRegion()->ptInRegion(&pt)) return 1;
return 0;
}
int AlphaMgr::isFocusInLayout(Layout *l) {
if (l->gotFocus()) return 1;
OSWINDOWHANDLE fw = Wasabi::Std::Wnd::getFocus();
while (fw)
{
if (fw == l->gethWnd()) return 1;
fw = Wasabi::Std::Wnd::getParent(fw);
}
return 0;
}
int AlphaMgr::isMouseInLayout(Layout *l) {
int isin = 0;
if (hasAutoOpacityOnFocus(l)) {
return isFocusInLayout(l);
} else {
int x, y;
api_region *r = NULL;
Wasabi::Std::getMousePos(&x, &y);
isin = isPointInLayout(l, x, y, &r);
int ext = getExtendAutoOpacity();
if (!isin && ext > 0) {
isin = isPointInLayout(l, x-ext, y, &r);
if (!isin) isin = isPointInLayout(l, x-ext, y-ext, &r);
if (!isin) isin = isPointInLayout(l, x, y-ext, &r);
if (!isin) isin = isPointInLayout(l, x+ext, y-ext, &r);
if (!isin) isin = isPointInLayout(l, x+ext, y, &r);
if (!isin) isin = isPointInLayout(l, x+ext, y+ext, &r);
if (!isin) isin = isPointInLayout(l, x, y+ext, &r);
if (!isin) isin = isPointInLayout(l, x-ext, y+ext, &r);
if (!isin) isin = isPointInLayout(l, x-ext, y, &r);
}
}
return isin;
}
int AlphaMgr::needForcedTransparencyFlag(Layout *l) {
if (!l->isTransparencySafe()) return 0;
if (l->isAlphaForced()) return 1;
if (l->getTransparencyOverride() > 0) return 1; // should not be testing for < 255 here
AlphaMgrEntry *e = layouts.findItem((const wchar_t *)l);
if (hasAutoOpacity(e) && getAlpha(e) < 255) return 1;
return 0;
}
void AlphaMgr::checkTimer() {
int fading = 0;
foreach(layouts)
AlphaMgrEntry *e = layouts.getfor();
if (e->getStatus() == STATUS_IN_FADINGON || e->getStatus() == STATUS_OUT_FADINGOUT) { fading++; break; }
endfor;
if (getAutoOpacify() && getBigStatus() == STATUS_IN_FADINGON || getBigStatus() == STATUS_OUT_FADINGOUT)
fading++;
if (fading && !fast_timer_on) {
timerclient_setTimer(ALPHAMGR_UPDATEALPHA, 20);
fast_timer_on = 1;
} else if (!fading && fast_timer_on) {
timerclient_killTimer(ALPHAMGR_UPDATEALPHA);
fast_timer_on = 0;
}
}
void AlphaMgr::doEndCheck(AlphaMgrEntry *e) {
if (getCurve(e) == 255) {
switch (e ? e->getStatus() : getBigStatus()) {
case STATUS_IN_FADINGON:
if (e) e->setStatus(STATUS_IN_ON); else setBigStatus(STATUS_IN_ON);
break;
case STATUS_OUT_FADINGOUT:
if (e) e->setStatus(STATUS_OUT_OFF); else setBigStatus(STATUS_OUT_OFF);
break;
}
checkTimer();
}
}
void AlphaMgr::updateInList(AlphaMgrEntry *e, int isin) {
if (isin) {
if (in_layouts.searchItem(e) == -1)
in_layouts.addItem(e);
} else {
in_layouts.removeItem(e);
}
int big_isin = in_layouts.getNumItems() > 0;
if (getAutoOpacify()) {
if (big_isin) {
// mouse is in a layout, autoopacity is on
switch (getBigStatus()) {
case STATUS_OUT_OFF:
case STATUS_OUT_FADINGOUT:
case STATUS_IN_OFF: {
setBigStartAlpha(e->getLayout()->getTransparency());
onBigEnterLeave();
setBigStatus(STATUS_IN_FADINGON);
checkTimer();
break;
}
case STATUS_IN_FADINGON:
doEndCheck(NULL);
break;
}
} else {
// mouse out of all layouts, autoopacity is on
switch (getBigStatus()) {
case STATUS_IN_FADINGON:
case STATUS_IN_ON: {
setBigStartAlpha(getTransparency(NULL));
onBigEnterLeave();
setBigStatus(STATUS_OUT_FADINGOUT);
checkTimer();
break;
}
case STATUS_OUT_FADINGOUT:
doEndCheck(NULL);
break;
}
}
} else {
if (big_isin) {
// mouse is in a layout, no autoopacity
setBigStatus(STATUS_IN_OFF);
} else {
// mouse is out of all layouts, no autoopacity
setBigStatus(STATUS_OUT_OFF);
}
}
}
int AlphaMgr::isFocusingExternalWindow()
{
OSWINDOWHANDLE fw = Wasabi::Std::Wnd::getFocus();
if (isOurExternalWindow(fw)) return 1;
return 0;
}
int AlphaMgr::isOverExternalWindow()
{
int x, y;
Wasabi::Std::getMousePos(&x, &y);
int ext = getExtendAutoOpacity();
POINT pt;
pt.x = x; pt.y = y;
OSWINDOWHANDLE w = Wasabi::Std::Wnd::getWindowFromPoint(pt);
if (isOurExternalWindow(w)) return 1;
pt.x = x-ext; pt.y = y-ext;
w = Wasabi::Std::Wnd::getWindowFromPoint(pt);
if (isOurExternalWindow(w)) return 1;
pt.x = x; pt.y = y-ext;
w = Wasabi::Std::Wnd::getWindowFromPoint(pt);
if (isOurExternalWindow(w)) return 1;
pt.x = x+ext; pt.y = y-ext;
w = Wasabi::Std::Wnd::getWindowFromPoint(pt);
if (isOurExternalWindow(w)) return 1;
pt.x = x+ext; pt.y = y;
w = Wasabi::Std::Wnd::getWindowFromPoint(pt);
if (isOurExternalWindow(w)) return 1;
pt.x = x+ext; pt.y = y+ext;
w = Wasabi::Std::Wnd::getWindowFromPoint(pt);
if (isOurExternalWindow(w)) return 1;
pt.x = x; pt.y = y+ext;
w = Wasabi::Std::Wnd::getWindowFromPoint(pt);
if (isOurExternalWindow(w)) return 1;
pt.x = x-ext; pt.y = y+ext;
w = Wasabi::Std::Wnd::getWindowFromPoint(pt);
if (isOurExternalWindow(w)) return 1;
pt.x = x-ext; pt.y = y;
w = Wasabi::Std::Wnd::getWindowFromPoint(pt);
if (isOurExternalWindow(w)) return 1;
return 0;
}
int AlphaMgr::isWasabiWindow(OSWINDOWHANDLE w)
{
#ifdef _WIN32
wchar_t classname[256]=L"";
GetClassNameW(w, classname, 255);
return (w == WASABI_API_WND->main_getRootWnd()->gethWnd() || !wcscmp(classname, BASEWNDCLASSNAME));
#else
#warning port me
return 1;
#endif
}
int AlphaMgr::isMenuWindow(OSWINDOWHANDLE w)
{
#ifdef _WIN32
char classname[256]="";
GetClassNameA(w, classname, 255);
return STRCASEEQL(classname, "#32768");
#else
return 0;
#warning port me
#endif
}
int AlphaMgr::isOurExternalWindow(OSWINDOWHANDLE w)
{
OSWINDOWHANDLE wnd = w;
if (isWasabiWindow(w))
return 0;
if (isMenuWindow(wnd)) {
wnd = Wasabi::Std::Wnd::getFocus();
if (isWasabiWindow(wnd) || isOurExternalWindow(wnd))
return 1;
}
while (wnd)
{
if (Wasabi::Std::Wnd::isPopup(wnd))
{
if (isWasabiWindow(wnd))
return 0;
OSWINDOWHANDLE _w = Wasabi::Std::Wnd::getParent(wnd);
#ifdef _WIN32
if (!_w) _w = GetWindow(wnd, GW_OWNER);
#else
#warning port me
#endif
if (!wnd) _w = wnd;
return (_w == WASABI_API_WND->main_getRootWnd()->gethWnd() || isWasabiWindow(_w) || isOurExternalWindow(_w));
}
wnd = Wasabi::Std::Wnd::getParent(wnd);
}
return 0;
}
void AlphaMgr::preHoverCheck(AlphaMgrEntry *e) {
int isin = isMouseInLayout(e->getLayout());
uint32_t last = e->getLastTimeIn();
uint32_t lastbig = getBigLastTimeIn();
if (isin) { e->onLastIn(); onBigLastIn(); }
if (!getAutoOpacify()) {
if (!isin && last != 0 && (last > Wasabi::Std::getTickCount() - holdtime_ms))
isin = 1;
} else {
if (!isin && lastbig != 0 && (lastbig > Wasabi::Std::getTickCount() - holdtime_ms))
isin = 1;
}
if (!isin) {
if (hasAutoOpacityOnFocus(e)) {
if (isFocusingExternalWindow()) isin = 1;
} else {
if (isOverExternalWindow()) isin = 1;
}
}
e->setNextIn(isin);
updateInList(e, isin);
}
void AlphaMgr::hoverCheck(Layout *l) {
AlphaMgrEntry *e = layouts.findItem((const wchar_t *)l);
if (e) hoverCheck(e);
}
void AlphaMgr::hoverCheck(AlphaMgrEntry *e, int applytransparency) {
if (e->getStatus() == STATUS_UNKNOWN)
initStatus(e);
int isin = e->getNextIn();
if (getAutoOpacify()) {
isin = big_status == STATUS_IN_FADINGON || big_status == STATUS_IN_ON || big_status == STATUS_IN_OFF;
}
if (hasAutoOpacity(e)) {
if (isin) {
// mouse is in, autoopacity is on
switch (e->getStatus()) {
case STATUS_OUT_OFF:
case STATUS_OUT_FADINGOUT:
case STATUS_IN_OFF:
e->setStartAlpha(e->getLayout()->getTransparency());
e->onEnterLeave();
e->setStatus(STATUS_IN_FADINGON);
checkTimer();
e->getLayout()->onMouseEnterLayout();
break;
case STATUS_IN_FADINGON:
doEndCheck(e);
break;
}
} else {
// mouse is out, autoopacity is on
switch (e->getStatus()) {
case STATUS_IN_FADINGON:
case STATUS_IN_ON:
e->setStartAlpha(e->getLayout()->getTransparency());
e->onEnterLeave();
e->setStatus(STATUS_OUT_FADINGOUT);
checkTimer();
e->getLayout()->onMouseLeaveLayout();
break;
case STATUS_OUT_FADINGOUT:
doEndCheck(e);
break;
}
}
} else {
if (isin) {
// mouse is in, no autoopacity
e->setStatus(STATUS_IN_OFF);
} else {
// mouse is out, no autoopacity
e->setStatus(STATUS_OUT_OFF);
}
}
// if (applytransparency) updateTransparency(e->getLayout());
}
void AlphaMgr::timerclient_timerCallback(int id) {
switch(id) {
case ALPHAMGR_HOVERCHECK: {
foreach(layouts)
AlphaMgrEntry *e = layouts.getfor();
preHoverCheck(e);
endfor;
foreach(layouts)
AlphaMgrEntry *e = layouts.getfor();
hoverCheck(e);
endfor;
}
break;
case ALPHAMGR_UPDATEALPHA: {
foreach(layouts)
AlphaMgrEntry *e = layouts.getfor();
if (e->getStatus() == STATUS_IN_FADINGON || e->getStatus() == STATUS_OUT_FADINGOUT) updateTransparency(e->getLayout());
endfor;
}
break;
}
}
int AlphaMgr::getBigCurTransparency() {
switch (getBigStatus()) {
case STATUS_IN_FADINGON:
case STATUS_OUT_FADINGOUT:
return getTransparency(NULL);
case STATUS_IN_ON:
return 255;
case STATUS_IN_OFF:
case STATUS_OUT_OFF:
return getGlobalAlpha();
default: return getTransparency(NULL);
}
}
void AlphaMgr::setBigStartAlpha(int a) {
big_startalpha = a;
}
void AlphaMgr::setBigStatus(int s) {
big_status = s;
}
void AlphaMgr::onBigEnterLeave() {
big_enterleave_time = Wasabi::Std::getTickCount();
}
uint32_t AlphaMgr::getBigEnterLeaveTime() {
return big_enterleave_time;
}
void AlphaMgr::setAutoOpacify(int l) {
autoopacify = l;
resetTimer();
if (l == 0) {
foreach(layouts)
if (layouts.getfor()->getStatus() == STATUS_IN_FADINGON) layouts.getfor()->setStatus(STATUS_IN_OFF);
if (layouts.getfor()->getStatus() == STATUS_OUT_FADINGOUT) layouts.getfor()->setStatus(STATUS_OUT_OFF);
endfor;
}
updateAllTransparency();
}
void AlphaMgr::resetTimer() {
timerclient_killTimer(ALPHAMGR_HOVERCHECK);
if (autoopacify == 1 && alllinked)
timerclient_setTimer(ALPHAMGR_HOVERCHECK, 99);
else
timerclient_setTimer(ALPHAMGR_HOVERCHECK, 300);
}
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