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10ec977d05
Reverts commitscea19a9d,961ff32b, and partially reverts5ec4d85dSome issues have appeared on the forums so these commits have been reverted while the issue is investigated.
292 lines
10 KiB
C++
292 lines
10 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE framework.
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Copyright (c) Raw Material Software Limited
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JUCE is an open source framework subject to commercial or open source
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licensing.
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By downloading, installing, or using the JUCE framework, or combining the
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JUCE framework with any other source code, object code, content or any other
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copyrightable work, you agree to the terms of the JUCE End User Licence
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Agreement, and all incorporated terms including the JUCE Privacy Policy and
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the JUCE Website Terms of Service, as applicable, which will bind you. If you
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do not agree to the terms of these agreements, we will not license the JUCE
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framework to you, and you must discontinue the installation or download
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process and cease use of the JUCE framework.
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JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
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JUCE Privacy Policy: https://juce.com/juce-privacy-policy
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JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
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Or:
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You may also use this code under the terms of the AGPLv3:
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https://www.gnu.org/licenses/agpl-3.0.en.html
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THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
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WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
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MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
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==============================================================================
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*/
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#include "juce_ScalingHelpers.h"
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namespace juce::detail
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{
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constexpr char colourPropertyPrefix[] = "jcclr_";
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//==============================================================================
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struct ComponentHelpers
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{
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using SH = ScalingHelpers;
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#if JUCE_MODAL_LOOPS_PERMITTED
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static void* runModalLoopCallback (void* userData)
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{
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return (void*) (pointer_sized_int) static_cast<Component*> (userData)->runModalLoop();
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}
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#endif
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static Identifier getColourPropertyID (int colourID)
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{
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char buffer[32];
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auto* end = buffer + numElementsInArray (buffer) - 1;
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auto* t = end;
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*t = 0;
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for (auto v = (uint32) colourID;;)
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{
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*--t = "0123456789abcdef" [v & 15];
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v >>= 4;
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if (v == 0)
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break;
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}
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for (int i = (int) sizeof (colourPropertyPrefix) - 1; --i >= 0;)
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*--t = colourPropertyPrefix[i];
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return t;
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}
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//==============================================================================
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static bool hitTest (Component& comp, Point<float> localPoint)
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{
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const auto intPoint = localPoint.roundToInt();
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return Rectangle<int> { comp.getWidth(), comp.getHeight() }.contains (intPoint)
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&& comp.hitTest (intPoint.x, intPoint.y);
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}
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// converts an unscaled position within a peer to the local position within that peer's component
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template <typename PointOrRect>
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static PointOrRect rawPeerPositionToLocal (const Component& comp, PointOrRect pos) noexcept
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{
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if (comp.isTransformed())
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pos = pos.transformedBy (comp.getTransform().inverted());
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return SH::unscaledScreenPosToScaled (comp, pos);
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}
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// converts a position within a peer's component to the unscaled position within the peer
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template <typename PointOrRect>
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static PointOrRect localPositionToRawPeerPos (const Component& comp, PointOrRect pos) noexcept
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{
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if (comp.isTransformed())
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pos = pos.transformedBy (comp.getTransform());
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return SH::scaledScreenPosToUnscaled (comp, pos);
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}
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template <typename PointOrRect>
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static PointOrRect convertFromParentSpace (const Component& comp, const PointOrRect pointInParentSpace)
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{
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const auto transformed = comp.affineTransform != nullptr ? pointInParentSpace.transformedBy (comp.affineTransform->inverted())
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: pointInParentSpace;
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if (comp.isOnDesktop())
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{
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if (auto* peer = comp.getPeer())
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return SH::unscaledScreenPosToScaled (comp, peer->globalToLocal (SH::scaledScreenPosToUnscaled (transformed)));
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jassertfalse;
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return transformed;
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}
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if (comp.getParentComponent() == nullptr)
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return SH::subtractPosition (SH::unscaledScreenPosToScaled (comp, SH::scaledScreenPosToUnscaled (transformed)), comp);
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return SH::subtractPosition (transformed, comp);
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}
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template <typename PointOrRect>
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static PointOrRect convertToParentSpace (const Component& comp, const PointOrRect pointInLocalSpace)
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{
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const auto preTransform = [&]
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{
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if (comp.isOnDesktop())
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{
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if (auto* peer = comp.getPeer())
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return SH::unscaledScreenPosToScaled (peer->localToGlobal (SH::scaledScreenPosToUnscaled (comp, pointInLocalSpace)));
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jassertfalse;
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return pointInLocalSpace;
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}
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if (comp.getParentComponent() == nullptr)
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return SH::unscaledScreenPosToScaled (SH::scaledScreenPosToUnscaled (comp, SH::addPosition (pointInLocalSpace, comp)));
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return SH::addPosition (pointInLocalSpace, comp);
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}();
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return comp.affineTransform != nullptr ? preTransform.transformedBy (*comp.affineTransform)
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: preTransform;
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}
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template <typename PointOrRect>
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static PointOrRect convertFromDistantParentSpace (const Component* parent, const Component& target, PointOrRect coordInParent)
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{
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auto* directParent = target.getParentComponent();
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jassert (directParent != nullptr);
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if (directParent == parent)
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return convertFromParentSpace (target, coordInParent);
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JUCE_BEGIN_IGNORE_WARNINGS_MSVC (6011)
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return convertFromParentSpace (target, convertFromDistantParentSpace (parent, *directParent, coordInParent));
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JUCE_END_IGNORE_WARNINGS_MSVC
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}
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template <typename PointOrRect>
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static PointOrRect convertCoordinate (const Component* target, const Component* source, PointOrRect p)
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{
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while (source != nullptr)
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{
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if (source == target)
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return p;
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JUCE_BEGIN_IGNORE_WARNINGS_MSVC (6011)
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if (source->isParentOf (target))
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return convertFromDistantParentSpace (source, *target, p);
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JUCE_END_IGNORE_WARNINGS_MSVC
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p = convertToParentSpace (*source, p);
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source = source->getParentComponent();
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}
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jassert (source == nullptr);
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if (target == nullptr)
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return p;
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auto* topLevelComp = target->getTopLevelComponent();
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p = convertFromParentSpace (*topLevelComp, p);
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if (topLevelComp == target)
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return p;
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return convertFromDistantParentSpace (topLevelComp, *target, p);
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}
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static bool clipChildComponent (const Component& child,
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Graphics& g,
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const Rectangle<int> clipRect,
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Point<int> delta)
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{
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if (! child.isVisible() || child.isTransformed())
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return false;
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const auto newClip = clipRect.getIntersection (child.boundsRelativeToParent);
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if (newClip.isEmpty())
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return false;
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if (child.isOpaque() && child.componentTransparency == 0)
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{
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g.excludeClipRegion (newClip + delta);
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return true;
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}
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const auto childPos = child.getPosition();
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return clipObscuredRegions (child, g, newClip - childPos, childPos + delta);
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}
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static bool clipObscuredRegions (const Component& comp,
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Graphics& g,
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const Rectangle<int> clipRect,
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Point<int> delta)
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{
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auto wasClipped = false;
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for (int i = comp.childComponentList.size(); --i >= 0;)
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wasClipped |= clipChildComponent (*comp.childComponentList.getUnchecked (i), g, clipRect, delta);
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return wasClipped;
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}
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static Rectangle<int> getParentOrMainMonitorBounds (const Component& comp)
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{
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if (auto* p = comp.getParentComponent())
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return p->getLocalBounds();
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return Desktop::getInstance().getDisplays().getPrimaryDisplay()->userArea;
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}
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static void releaseAllCachedImageResources (Component& c)
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{
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c.invalidateCachedImageResources();
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for (auto* child : c.childComponentList)
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releaseAllCachedImageResources (*child);
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}
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//==============================================================================
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static bool modalWouldBlockComponent (const Component& maybeBlocked, Component* modal)
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{
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return modal != nullptr
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&& modal != &maybeBlocked
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&& ! modal->isParentOf (&maybeBlocked)
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&& ! modal->canModalEventBeSentToComponent (&maybeBlocked);
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}
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template <typename Function>
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static void sendMouseEventToComponentsThatAreBlockedByModal (Component& modal, Function&& function)
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{
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for (auto& ms : Desktop::getInstance().getMouseSources())
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if (auto* c = ms.getComponentUnderMouse())
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if (modalWouldBlockComponent (*c, &modal))
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function (c, ms, SH::screenPosToLocalPos (*c, ms.getScreenPosition()), Time::getCurrentTime());
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}
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class ModalComponentManagerChangeNotifier
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{
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public:
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static auto& getInstance()
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{
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static ModalComponentManagerChangeNotifier instance;
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return instance;
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}
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ErasedScopeGuard addListener (std::function<void()> l)
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{
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return listeners.addListener (std::move (l));
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}
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void modalComponentManagerChanged()
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{
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listeners.call();
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}
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private:
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ModalComponentManagerChangeNotifier() = default;
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detail::CallbackListenerList<> listeners;
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};
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};
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} // namespace juce::detail
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