/
d2dgraphicscontext.cpp
1075 lines (961 loc) · 35.5 KB
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d2dgraphicscontext.cpp
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// This file is part of VSTGUI. It is subject to the license terms
// in the LICENSE file found in the top-level directory of this
// distribution and at http://github.com/steinbergmedia/vstgui/LICENSE
#include "d2dgraphicscontext.h"
#include "d2dgradient.h"
#include "d2dgraphicspath.h"
#include "d2dbitmap.h"
#include "d2dbitmapcache.h"
#include "d2dgradient.h"
#include "d2d.h"
#include "../comptr.h"
#include "../../../crect.h"
#include "../../../cgraphicstransform.h"
#include "../../../cbitmap.h"
#include "../../../ccolor.h"
#include "../../../cdrawdefs.h"
#include "../../../clinestyle.h"
#include <stack>
#include <array>
#include <d2d1_1.h>
#include <dwrite.h>
//------------------------------------------------------------------------
namespace VSTGUI {
namespace {
//------------------------------------------------------------------------
struct TransformGuard
{
TransformGuard (ID2D1DeviceContext* context) : context (context)
{
context->GetTransform (&matrix);
}
~TransformGuard () noexcept { context->SetTransform (matrix); }
D2D1_MATRIX_3X2_F matrix;
ID2D1DeviceContext* context;
};
//------------------------------------------------------------------------
struct D2DBitmapDeviceContext : D2DGraphicsDeviceContext
{
static PlatformGraphicsDeviceContextPtr make (const D2DGraphicsDevice& device,
ID2D1DeviceContext* deviceContext,
const SharedPointer<D2DBitmap>& bitmap)
{
D2D1_BITMAP_PROPERTIES1 props = D2D1::BitmapProperties1 (
D2D1_BITMAP_OPTIONS_TARGET | D2D1_BITMAP_OPTIONS_CANNOT_DRAW,
D2D1::PixelFormat (DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_PREMULTIPLIED));
COM::Ptr<ID2D1Bitmap1> bitmapTarget;
deviceContext->CreateBitmapFromWicBitmap (bitmap->getSource (), &props,
bitmapTarget.adoptPtr ());
if (!bitmapTarget)
return nullptr;
deviceContext->SetTarget (bitmapTarget.get ());
TransformMatrix tm;
tm.scale (bitmap->getScaleFactor (), bitmap->getScaleFactor ());
deviceContext->SetTransform (convert (tm));
return std::make_shared<D2DBitmapDeviceContext> (device, bitmap, deviceContext,
TransformMatrix {});
}
D2DBitmapDeviceContext (const D2DGraphicsDevice& device, const SharedPointer<D2DBitmap>& bitmap,
ID2D1DeviceContext* deviceContext, const TransformMatrix& tm)
: D2DGraphicsDeviceContext (device, deviceContext, tm), bitmap (bitmap)
{
}
bool endDraw () const
{
if (D2DGraphicsDeviceContext::endDraw ())
{
COM::Ptr<ID2D1Image> image;
getID2D1DeviceContext ()->GetTarget (image.adoptPtr ());
if (!image)
return false;
COM::Ptr<ID2D1Bitmap1> bitmapTarget;
if (FAILED (image->QueryInterface<ID2D1Bitmap1> (bitmapTarget.adoptPtr ())))
return false;
auto pa = bitmap->lockPixels (true);
if (!pa)
return false;
auto size = bitmap->getSize ();
D2D1_BITMAP_PROPERTIES1 props = D2D1::BitmapProperties1 (
D2D1_BITMAP_OPTIONS_CPU_READ | D2D1_BITMAP_OPTIONS_CANNOT_DRAW,
D2D1::PixelFormat (DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_PREMULTIPLIED));
COM::Ptr<ID2D1Bitmap1> cpuBitmap;
auto hr = getID2D1DeviceContext ()->CreateBitmap (
D2D1_SIZE_U {static_cast<UINT32> (size.x), static_cast<UINT32> (size.y)}, nullptr,
pa->getBytesPerRow (), props, cpuBitmap.adoptPtr ());
if (FAILED (hr))
return false;
D2D1_POINT_2U dp {};
D2D1_RECT_U dstRect {0, 0, static_cast<UINT32> (size.x), static_cast<UINT32> (size.y)};
hr = cpuBitmap->CopyFromBitmap (&dp, bitmapTarget.get (), &dstRect);
if (FAILED (hr))
return false;
D2D1_MAPPED_RECT mappedRect {};
hr = cpuBitmap->Map (D2D1_MAP_OPTIONS_READ, &mappedRect);
if (FAILED (hr))
return false;
auto height = static_cast<uint32_t> (size.y);
if (pa->getBytesPerRow () == mappedRect.pitch)
{
memcpy (pa->getAddress (), mappedRect.bits, mappedRect.pitch * height);
}
else
{
auto src = mappedRect.bits;
for (auto row = 0u; row < height; ++row, src += mappedRect.pitch)
{
auto dst = pa->getAddress () + pa->getBytesPerRow () * row;
memcpy (dst, src, pa->getBytesPerRow ());
}
}
cpuBitmap->Unmap ();
return true;
}
return false;
}
SharedPointer<D2DBitmap> bitmap;
};
//------------------------------------------------------------------------
COM::Ptr<ID2D1ImageBrush> createBrushFromBitmap (ID2D1DeviceContext* deviceContext,
ID2D1Bitmap* d2d1Bitmap, CRect srcRect,
CRect dstRect, double alpha,
BitmapInterpolationQuality quality,
CGraphicsTransform* brushTM = nullptr)
{
CGraphicsTransform brushTransform;
if (brushTM)
brushTransform = *brushTM;
brushTransform.translate (dstRect.getTopLeft ());
D2D1_IMAGE_BRUSH_PROPERTIES imageBrushProp = {};
imageBrushProp.sourceRectangle = convert (srcRect);
imageBrushProp.extendModeX = imageBrushProp.extendModeY = D2D1_EXTEND_MODE_WRAP;
switch (quality)
{
case BitmapInterpolationQuality::kLow:
imageBrushProp.interpolationMode = D2D1_INTERPOLATION_MODE_NEAREST_NEIGHBOR;
break;
case BitmapInterpolationQuality::kMedium:
case BitmapInterpolationQuality::kHigh:
default:
imageBrushProp.interpolationMode = D2D1_INTERPOLATION_MODE_LINEAR;
break;
}
D2D1_BRUSH_PROPERTIES brushProp = {};
brushProp.opacity = static_cast<FLOAT> (alpha);
brushProp.transform = convert (brushTransform);
COM::Ptr<ID2D1ImageBrush> brush;
auto hr =
deviceContext->CreateImageBrush (d2d1Bitmap, imageBrushProp, brushProp, brush.adoptPtr ());
if (FAILED (hr))
return {};
return brush;
}
//------------------------------------------------------------------------
} // anonymous namespace
//------------------------------------------------------------------------
struct D2DGraphicsDeviceFactory::Impl
{
std::vector<std::shared_ptr<D2DGraphicsDevice>> devices;
};
//------------------------------------------------------------------------
D2DGraphicsDeviceFactory::D2DGraphicsDeviceFactory () { impl = std::make_unique<Impl> (); }
//------------------------------------------------------------------------
D2DGraphicsDeviceFactory::~D2DGraphicsDeviceFactory () noexcept {}
//------------------------------------------------------------------------
PlatformGraphicsDevicePtr
D2DGraphicsDeviceFactory::getDeviceForScreen (ScreenInfo::Identifier screen) const
{
if (impl->devices.empty ())
return nullptr;
return impl->devices.front ();
}
//------------------------------------------------------------------------
PlatformGraphicsDevicePtr D2DGraphicsDeviceFactory::find (ID2D1Device* dev) const
{
auto it = std::find_if (impl->devices.begin (), impl->devices.end (),
[dev] (const auto& el) { return el->get () == dev; });
if (it != impl->devices.end ())
return *it;
return nullptr;
}
//------------------------------------------------------------------------
void D2DGraphicsDeviceFactory::addDevice (const std::shared_ptr<D2DGraphicsDevice>& device) const
{
impl->devices.push_back (device);
}
//------------------------------------------------------------------------
void D2DGraphicsDeviceFactory::removeDevice (const std::shared_ptr<D2DGraphicsDevice>& device) const
{
auto it = std::find (impl->devices.begin (), impl->devices.end (), device);
if (it != impl->devices.end ())
impl->devices.erase (it);
}
//------------------------------------------------------------------------
struct D2DGraphicsDevice::Impl
{
COM::Ptr<ID2D1Device> device;
};
//------------------------------------------------------------------------
D2DGraphicsDevice::D2DGraphicsDevice (ID2D1Device* device)
{
impl = std::make_unique<Impl> ();
impl->device = COM::share<ID2D1Device> (device);
}
//------------------------------------------------------------------------
D2DGraphicsDevice::~D2DGraphicsDevice () noexcept {}
//------------------------------------------------------------------------
PlatformGraphicsDeviceContextPtr
D2DGraphicsDevice::createBitmapContext (const PlatformBitmapPtr& bitmap) const
{
auto d2dBitmap = bitmap.cast<D2DBitmap> ();
if (d2dBitmap)
{
COM::Ptr<ID2D1DeviceContext> deviceContext;
auto hr =
impl->device->CreateDeviceContext (D2D1_DEVICE_CONTEXT_OPTIONS_NONE, deviceContext.adoptPtr ());
if (FAILED (hr))
return nullptr;
D2DBitmapCache::removeBitmap (d2dBitmap);
return D2DBitmapDeviceContext::make (*this, deviceContext.get (), d2dBitmap);
}
return nullptr;
}
//------------------------------------------------------------------------
ID2D1Device* D2DGraphicsDevice::get () const { return impl->device.get (); }
//------------------------------------------------------------------------
struct D2DGraphicsDeviceContext::Impl
{
Impl (const D2DGraphicsDevice& device, ID2D1DeviceContext* deviceContext,
const TransformMatrix& tm)
: device (device), deviceContext (COM::share (deviceContext)), globalTM (tm)
{
#if DEBUG
COM::Ptr<ID2D1Device> d2dDevice;
deviceContext->GetDevice (d2dDevice.adoptPtr ());
vstgui_assert (d2dDevice.get () == device.get ());
#endif
}
template<typename Proc>
void doInContext (Proc p, CPoint transformOffset = {})
{
if (state.clip.isEmpty ())
return;
TransformGuard tmGuard (deviceContext.get ());
auto transform = convert (tmGuard.matrix) * globalTM * state.tm;
transform.scale (scaleFactor, scaleFactor);
transform.translate (transformOffset);
auto newClip = state.clip;
globalTM.transform (newClip);
if (applyClip != newClip)
{
if (applyClip.isEmpty () == false)
deviceContext->PopAxisAlignedClip ();
if (newClip.isEmpty () == false)
deviceContext->PushAxisAlignedClip (convert (newClip), D2D1_ANTIALIAS_MODE_ALIASED);
applyClip = newClip;
}
deviceContext->SetTransform (convert (transform));
p (deviceContext.get ());
}
//-----------------------------------------------------------------------------
void applyFrameColor ()
{
if (state.frameBrush)
return;
deviceContext->CreateSolidColorBrush (convert (state.frameColor, state.globalAlpha),
state.frameBrush.adoptPtr ());
}
//-----------------------------------------------------------------------------
void applyFillColor ()
{
if (state.fillBrush)
return;
deviceContext->CreateSolidColorBrush (convert (state.fillColor, state.globalAlpha),
state.fillBrush.adoptPtr ());
}
//-----------------------------------------------------------------------------
void applyFontColor (CColor color)
{
if (state.fontColor != color)
state.fontBrush.reset ();
if (state.fontBrush)
return;
state.fontColor = color;
deviceContext->CreateSolidColorBrush (convert (state.fontColor, state.globalAlpha),
state.fontBrush.adoptPtr ());
}
//-----------------------------------------------------------------------------
CPoint lineWidthTransformMatrixOffset () const
{
int32_t lineWidthInt = static_cast<int32_t> (state.lineWidth);
if (static_cast<CCoord> (lineWidthInt) == state.lineWidth && lineWidthInt % 2)
{
return {0.5, 0.5};
}
return {};
}
//-----------------------------------------------------------------------------
void applyLineStyle ()
{
if (state.strokeStyle)
return;
COM::Ptr<ID2D1Factory> factory {};
deviceContext->GetFactory (factory.adoptPtr ());
D2D1_STROKE_STYLE_PROPERTIES properties;
switch (state.lineStyle.getLineCap ())
{
case CLineStyle::kLineCapButt:
properties.startCap = properties.endCap = properties.dashCap = D2D1_CAP_STYLE_FLAT;
break;
case CLineStyle::kLineCapRound:
properties.startCap = properties.endCap = properties.dashCap = D2D1_CAP_STYLE_ROUND;
break;
case CLineStyle::kLineCapSquare:
properties.startCap = properties.endCap = properties.dashCap =
D2D1_CAP_STYLE_SQUARE;
break;
}
switch (state.lineStyle.getLineJoin ())
{
case CLineStyle::kLineJoinMiter:
properties.lineJoin = D2D1_LINE_JOIN_MITER;
break;
case CLineStyle::kLineJoinRound:
properties.lineJoin = D2D1_LINE_JOIN_ROUND;
break;
case CLineStyle::kLineJoinBevel:
properties.lineJoin = D2D1_LINE_JOIN_BEVEL;
break;
}
properties.dashOffset = static_cast<FLOAT> (state.lineStyle.getDashPhase ());
properties.miterLimit = 10.f;
if (state.lineStyle.getDashCount ())
{
properties.dashStyle = D2D1_DASH_STYLE_CUSTOM;
FLOAT* lengths = new FLOAT[state.lineStyle.getDashCount ()];
for (uint32_t i = 0; i < state.lineStyle.getDashCount (); i++)
lengths[i] = static_cast<FLOAT> (state.lineStyle.getDashLengths ()[i]);
factory->CreateStrokeStyle (properties, lengths, state.lineStyle.getDashCount (),
state.strokeStyle.adoptPtr ());
delete[] lengths;
}
else
{
properties.dashStyle = D2D1_DASH_STYLE_SOLID;
factory->CreateStrokeStyle (properties, nullptr, 0, state.strokeStyle.adoptPtr ());
}
}
struct State
{
CRect clip {};
CLineStyle lineStyle {kLineSolid};
CDrawMode drawMode {};
COM::Ptr<ID2D1StrokeStyle> strokeStyle;
COM::Ptr<ID2D1SolidColorBrush> fillBrush;
COM::Ptr<ID2D1SolidColorBrush> frameBrush;
COM::Ptr<ID2D1SolidColorBrush> fontBrush;
CColor fillColor {kTransparentCColor};
CColor frameColor {kTransparentCColor};
CColor fontColor {kTransparentCColor};
CCoord lineWidth {1.};
double globalAlpha {1.};
TransformMatrix tm {};
};
State state;
std::stack<State> stateStack;
double scaleFactor {1.};
CRect applyClip {};
bool beginDrawCalled {false};
TransformMatrix globalTM;
const D2DGraphicsDevice& device;
COM::Ptr<ID2D1DeviceContext> deviceContext;
#if defined(VSTGUI_TEXTRENDERING_LEGACY_INCONSISTENCY) && \
VSTGUI_TEXTRENDERING_LEGACY_INCONSISTENCY == 1
static constexpr auto antialiasMode = D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE;
#else
static constexpr auto antialiasMode = D2D1_TEXT_ANTIALIAS_MODE_DEFAULT;
#endif
};
//------------------------------------------------------------------------
D2DGraphicsDeviceContext::D2DGraphicsDeviceContext (const D2DGraphicsDevice& device,
ID2D1DeviceContext* deviceContext,
const TransformMatrix& tm)
{
impl = std::make_unique<Impl> (device, deviceContext, tm);
}
//------------------------------------------------------------------------
D2DGraphicsDeviceContext::~D2DGraphicsDeviceContext () noexcept { endDraw (); }
//------------------------------------------------------------------------
ID2D1DeviceContext* D2DGraphicsDeviceContext::getID2D1DeviceContext () const
{
return impl->deviceContext.get ();
}
//------------------------------------------------------------------------
const IPlatformGraphicsDevice& D2DGraphicsDeviceContext::getDevice () const { return impl->device; }
//------------------------------------------------------------------------
PlatformGraphicsPathFactoryPtr D2DGraphicsDeviceContext::getGraphicsPathFactory () const
{
return D2DGraphicsPathFactory::instance ();
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::beginDraw () const
{
impl->beginDrawCalled = true;
impl->deviceContext->BeginDraw ();
return true;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::endDraw () const
{
if (impl->applyClip.isEmpty () == false)
impl->deviceContext->PopAxisAlignedClip ();
impl->applyClip = {};
if (impl->beginDrawCalled)
{
auto hr = impl->deviceContext->EndDraw ();
vstgui_assert (SUCCEEDED (hr));
impl->beginDrawCalled = false;
}
return true;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::drawLine (LinePair line) const
{
impl->doInContext (
[&] (auto deviceContext) {
impl->applyFrameColor ();
impl->applyLineStyle ();
CPoint start (line.first);
CPoint end (line.second);
if (impl->state.drawMode.integralMode ())
{
pixelAlign (impl->state.tm, start);
pixelAlign (impl->state.tm, end);
}
deviceContext->DrawLine (convert (start), convert (end), impl->state.frameBrush.get (),
static_cast<FLOAT> (impl->state.lineWidth),
impl->state.strokeStyle.get ());
},
impl->lineWidthTransformMatrixOffset ());
return true;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::drawLines (const LineList& lines) const
{
impl->doInContext (
[&] (auto deviceContext) {
impl->applyFrameColor ();
impl->applyLineStyle ();
if (impl->state.drawMode.integralMode ())
{
for (const auto& line : lines)
{
CPoint start (line.first);
CPoint end (line.second);
pixelAlign (impl->state.tm, start);
pixelAlign (impl->state.tm, end);
deviceContext->DrawLine (
convert (start), convert (end), impl->state.frameBrush.get (),
static_cast<FLOAT> (impl->state.lineWidth), impl->state.strokeStyle.get ());
}
}
else
{
for (const auto& line : lines)
{
CPoint start (line.first);
CPoint end (line.second);
deviceContext->DrawLine (
convert (start), convert (end), impl->state.frameBrush.get (),
static_cast<FLOAT> (impl->state.lineWidth), impl->state.strokeStyle.get ());
}
}
},
impl->lineWidthTransformMatrixOffset ());
return true;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::drawPolygon (const PointList& polygonPointList,
PlatformGraphicsDrawStyle drawStyle) const
{
auto path = getGraphicsPathFactory ()->createPath ();
if (!path)
return false;
path->beginSubpath (polygonPointList[0]);
for (uint32_t i = 1; i < polygonPointList.size (); ++i)
{
path->addLine (polygonPointList[i]);
}
path->finishBuilding ();
if (drawStyle == PlatformGraphicsDrawStyle::Filled ||
drawStyle == PlatformGraphicsDrawStyle::FilledAndStroked)
{
drawGraphicsPath (*path, PlatformGraphicsPathDrawMode::Filled, nullptr);
}
if (drawStyle == PlatformGraphicsDrawStyle::Stroked ||
drawStyle == PlatformGraphicsDrawStyle::FilledAndStroked)
{
drawGraphicsPath (*path, PlatformGraphicsPathDrawMode::Stroked, nullptr);
}
return true;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::drawRect (CRect rect, PlatformGraphicsDrawStyle drawStyle) const
{
impl->doInContext ([&] (auto deviceContext) {
if (drawStyle != PlatformGraphicsDrawStyle::Filled)
{
rect.right -= 1.;
rect.bottom -= 1.;
}
if (drawStyle == PlatformGraphicsDrawStyle::Filled ||
drawStyle == PlatformGraphicsDrawStyle::FilledAndStroked)
{
impl->applyFillColor ();
deviceContext->FillRectangle (convert (rect), impl->state.fillBrush.get ());
}
if (drawStyle == PlatformGraphicsDrawStyle::Stroked ||
drawStyle == PlatformGraphicsDrawStyle::FilledAndStroked)
{
rect.offset (impl->lineWidthTransformMatrixOffset ());
impl->applyFrameColor ();
impl->applyLineStyle ();
deviceContext->DrawRectangle (convert (rect), impl->state.frameBrush.get (),
static_cast<FLOAT> (impl->state.lineWidth),
impl->state.strokeStyle.get ());
}
});
return true;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::drawArc (CRect rect, double startAngle1, double endAngle2,
PlatformGraphicsDrawStyle drawStyle) const
{
auto path = getGraphicsPathFactory ()->createPath ();
if (!path)
return false;
if (impl->state.drawMode.integralMode ())
pixelAlign (impl->state.tm, rect);
path->addArc (rect, startAngle1, endAngle2, true);
path->finishBuilding ();
if (drawStyle == PlatformGraphicsDrawStyle::Filled ||
drawStyle == PlatformGraphicsDrawStyle::FilledAndStroked)
drawGraphicsPath (*path, PlatformGraphicsPathDrawMode::Filled, nullptr);
if (drawStyle == PlatformGraphicsDrawStyle::Stroked ||
drawStyle == PlatformGraphicsDrawStyle::FilledAndStroked)
drawGraphicsPath (*path, PlatformGraphicsPathDrawMode::Stroked, nullptr);
return true;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::drawEllipse (CRect rect, PlatformGraphicsDrawStyle drawStyle) const
{
impl->doInContext ([&] (auto deviceContext) {
if (impl->state.drawMode.integralMode ())
pixelAlign (impl->state.tm, rect);
if (drawStyle == PlatformGraphicsDrawStyle::Stroked)
rect.inset (0.5, 0.5);
CPoint center (rect.getTopLeft ());
center.offset (rect.getWidth () / 2., rect.getHeight () / 2.);
D2D1_ELLIPSE ellipse;
ellipse.point = convert (center);
ellipse.radiusX = (FLOAT)(rect.getWidth () / 2.);
ellipse.radiusY = (FLOAT)(rect.getHeight () / 2.);
if (drawStyle == PlatformGraphicsDrawStyle::Filled ||
drawStyle == PlatformGraphicsDrawStyle::FilledAndStroked)
{
impl->applyFillColor ();
deviceContext->FillEllipse (ellipse, impl->state.fillBrush.get ());
}
if (drawStyle == PlatformGraphicsDrawStyle::Stroked ||
drawStyle == PlatformGraphicsDrawStyle::FilledAndStroked)
{
impl->applyFrameColor ();
impl->applyLineStyle ();
deviceContext->DrawEllipse (ellipse, impl->state.frameBrush.get (),
static_cast<FLOAT> (impl->state.lineWidth),
impl->state.strokeStyle.get ());
}
});
return true;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::drawPoint (CPoint point, CColor color) const { return false; }
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::drawBitmap (IPlatformBitmap& bitmap, CRect dest, CPoint offset,
double alpha, BitmapInterpolationQuality quality) const
{
D2DBitmap* d2dBitmap = dynamic_cast<D2DBitmap*> (&bitmap);
if (!d2dBitmap || !d2dBitmap->getSource ())
return false;
auto d2d1Bitmap =
D2DBitmapCache::getBitmap (d2dBitmap, impl->deviceContext.get (), impl->device.get ());
if (!d2d1Bitmap)
return false;
auto originalClip = impl->state.clip;
auto cr = dest;
impl->state.tm.transform (cr);
cr.bound (originalClip);
impl->state.clip = cr;
double bitmapScaleFactor = d2dBitmap->getScaleFactor ();
CGraphicsTransform bitmapTransform;
bitmapTransform.scale (1. / bitmapScaleFactor, 1. / bitmapScaleFactor);
auto originalTransformMatrix = impl->state.tm;
TransformMatrix tm = originalTransformMatrix * bitmapTransform;
setTransformMatrix (tm);
auto invBitmapTransform = bitmapTransform.inverse ();
invBitmapTransform.transform (dest);
invBitmapTransform.transform (offset);
impl->doInContext ([&] (auto deviceContext) {
auto bitmapSize = bitmap.getSize ();
CRect d (dest);
d.setWidth (bitmapSize.x);
d.setHeight (bitmapSize.y);
d.offset (-offset.x, -offset.y);
d.makeIntegral ();
CRect source;
source.setWidth (d2d1Bitmap->GetSize ().width);
source.setHeight (d2d1Bitmap->GetSize ().height);
D2D1_RECT_F sourceRect = convert (source);
deviceContext->DrawBitmap (d2d1Bitmap, convert (d),
static_cast<FLOAT> (alpha * impl->state.globalAlpha),
convert (quality), &sourceRect);
});
setTransformMatrix (originalTransformMatrix);
impl->state.clip = originalClip;
return true;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::clearRect (CRect rect) const
{
#if 1
TransformGuard tmGuard (impl->deviceContext.get ());
impl->deviceContext->SetTransform (convert (impl->globalTM * impl->state.tm));
impl->deviceContext->PushAxisAlignedClip (convert (rect), D2D1_ANTIALIAS_MODE_ALIASED);
impl->deviceContext->Clear (D2D1::ColorF (1.f, 1.f, 1.f, 0.f));
impl->deviceContext->PopAxisAlignedClip ();
#else
CRect oldClip = impl->state.clip;
rect.bound (oldClip);
setClipRect (rect);
impl->doInContext (
[] (auto deviceContext) { deviceContext->Clear (D2D1::ColorF (1.f, 1.f, 1.f, 0.f)); });
setClipRect (oldClip);
#endif
return true;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::drawGraphicsPath (IPlatformGraphicsPath& path,
PlatformGraphicsPathDrawMode mode,
TransformMatrix* transformation) const
{
auto d2dPath = dynamic_cast<D2DGraphicsPath*> (&path);
if (d2dPath == nullptr)
return false;
impl->doInContext ([&] (auto deviceContext) {
COM::Ptr<ID2D1Geometry> path;
if (transformation)
{
COM::Ptr<ID2D1Factory> factory {};
deviceContext->GetFactory (factory.adoptPtr ());
path = COM::adopt<ID2D1Geometry> (
d2dPath->createTransformedGeometry (factory.get (), *transformation));
}
else
{
path = COM::share<ID2D1Geometry> (d2dPath->getPathGeometry ());
}
if (path)
{
if (mode == PlatformGraphicsPathDrawMode::Filled ||
mode == PlatformGraphicsPathDrawMode::FilledEvenOdd)
{
impl->applyFillColor ();
deviceContext->FillGeometry (path.get (), impl->state.fillBrush.get ());
}
else if (mode == PlatformGraphicsPathDrawMode::Stroked)
{
impl->applyFrameColor ();
impl->applyLineStyle ();
deviceContext->DrawGeometry (path.get (), impl->state.frameBrush.get (),
(FLOAT)impl->state.lineWidth,
impl->state.strokeStyle.get ());
}
}
});
return true;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::fillLinearGradient (IPlatformGraphicsPath& path,
const IPlatformGradient& gradient,
CPoint startPoint, CPoint endPoint, bool evenOdd,
TransformMatrix* transformation) const
{
auto d2dPath = dynamic_cast<D2DGraphicsPath*> (&path);
const auto d2dGradient = dynamic_cast<const D2DGradient*> (&gradient);
if (d2dPath == nullptr || d2dGradient == nullptr)
return false;
impl->doInContext ([&] (auto deviceContext) {
auto stopCollection = COM::adopt<ID2D1GradientStopCollection> (
d2dGradient->create (deviceContext, static_cast<FLOAT> (impl->state.globalAlpha)));
if (!stopCollection)
return;
COM::Ptr<ID2D1Geometry> path;
if (transformation)
{
COM::Ptr<ID2D1Factory> factory {};
deviceContext->GetFactory (factory.adoptPtr ());
path = COM::adopt<ID2D1Geometry> (
d2dPath->createTransformedGeometry (factory.get (), *transformation));
}
else
{
path = COM::share<ID2D1Geometry> (d2dPath->getPathGeometry ());
}
if (path)
{
COM::Ptr<ID2D1LinearGradientBrush> brush;
D2D1_LINEAR_GRADIENT_BRUSH_PROPERTIES properties;
properties.startPoint = convert (startPoint);
properties.endPoint = convert (endPoint);
if (SUCCEEDED (deviceContext->CreateLinearGradientBrush (
properties, stopCollection.get (), brush.adoptPtr ())))
{
deviceContext->FillGeometry (path.get (), brush.get ());
}
}
});
return true;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::fillRadialGradient (IPlatformGraphicsPath& path,
const IPlatformGradient& gradient, CPoint center,
CCoord radius, CPoint originOffset, bool evenOdd,
TransformMatrix* transformation) const
{
auto d2dPath = dynamic_cast<D2DGraphicsPath*> (&path);
const auto d2dGradient = dynamic_cast<const D2DGradient*> (&gradient);
if (d2dPath == nullptr || d2dGradient == nullptr)
return false;
impl->doInContext ([&] (auto deviceContext) {
auto stopCollection = COM::adopt<ID2D1GradientStopCollection> (
d2dGradient->create (deviceContext, static_cast<FLOAT> (impl->state.globalAlpha)));
if (!stopCollection)
return;
COM::Ptr<ID2D1Geometry> path;
if (transformation)
{
COM::Ptr<ID2D1Factory> factory {};
deviceContext->GetFactory (factory.adoptPtr ());
path = COM::adopt<ID2D1Geometry> (
d2dPath->createTransformedGeometry (factory.get (), *transformation));
}
else
{
path = COM::share<ID2D1Geometry> (d2dPath->getPathGeometry ());
}
if (path)
{
COM::Ptr<ID2D1RadialGradientBrush> brush;
D2D1_RADIAL_GRADIENT_BRUSH_PROPERTIES properties;
properties.center = convert (center);
properties.gradientOriginOffset = convert (originOffset);
properties.radiusX = (FLOAT)radius;
properties.radiusY = (FLOAT)radius;
if (SUCCEEDED (deviceContext->CreateRadialGradientBrush (
properties, stopCollection.get (), brush.adoptPtr ())))
{
deviceContext->FillGeometry (path.get (), brush.get ());
}
}
});
return true;
}
//------------------------------------------------------------------------
void D2DGraphicsDeviceContext::saveGlobalState () const { impl->stateStack.push (impl->state); }
//------------------------------------------------------------------------
void D2DGraphicsDeviceContext::restoreGlobalState () const
{
vstgui_assert (impl->stateStack.empty () == false,
"Unbalanced calls to saveGlobalState and restoreGlobalState");
#if NDEBUG
if (impl->stateStack.empty ())
return;
#endif
impl->state = impl->stateStack.top ();
impl->stateStack.pop ();
}
//------------------------------------------------------------------------
void D2DGraphicsDeviceContext::setLineStyle (const CLineStyle& style) const
{
if (impl->state.lineStyle != style)
{
impl->state.lineStyle = style;
impl->state.strokeStyle.reset ();
}
}
//------------------------------------------------------------------------
void D2DGraphicsDeviceContext::setLineWidth (CCoord width) const { impl->state.lineWidth = width; }
//------------------------------------------------------------------------
void D2DGraphicsDeviceContext::setDrawMode (CDrawMode mode) const { impl->state.drawMode = mode; }
//------------------------------------------------------------------------
void D2DGraphicsDeviceContext::setClipRect (CRect clip) const { impl->state.clip = clip; }
//------------------------------------------------------------------------
void D2DGraphicsDeviceContext::setFillColor (CColor color) const
{
if (impl->state.fillColor != color)
{
impl->state.fillColor = color;
impl->state.fillBrush.reset ();
}
}
//------------------------------------------------------------------------
void D2DGraphicsDeviceContext::setFrameColor (CColor color) const
{
if (impl->state.frameColor != color)
{
impl->state.frameColor = color;
impl->state.frameBrush.reset ();
}
}
//------------------------------------------------------------------------
void D2DGraphicsDeviceContext::setGlobalAlpha (double newAlpha) const
{
if (impl->state.globalAlpha != newAlpha)
{
impl->state.globalAlpha = newAlpha;
impl->state.fillBrush.reset ();
impl->state.frameBrush.reset ();
impl->state.fontBrush.reset ();
}
}
//------------------------------------------------------------------------
void D2DGraphicsDeviceContext::setTransformMatrix (const TransformMatrix& tm) const
{
impl->state.tm = tm;
}
//------------------------------------------------------------------------
const IPlatformGraphicsDeviceContextBitmapExt* D2DGraphicsDeviceContext::asBitmapExt () const
{
return this;
}
//------------------------------------------------------------------------
bool D2DGraphicsDeviceContext::drawBitmapNinePartTiled (IPlatformBitmap& bitmap, CRect dstRect,
const CNinePartTiledDescription& desc,
double alpha,
BitmapInterpolationQuality quality) const
{
using NPTD = CNinePartTiledDescription;
alpha *= impl->state.globalAlpha;
if (alpha == 0.)
return true;
D2DBitmap* d2dBitmap = dynamic_cast<D2DBitmap*> (&bitmap);
if (!d2dBitmap || !d2dBitmap->getSource ())
return false;
auto d2d1Bitmap =
D2DBitmapCache::getBitmap (d2dBitmap, impl->deviceContext.get (), impl->device.get ());
if (!d2d1Bitmap)
return false;
auto interpolationMode = convert (quality);
auto originalClip = impl->state.clip;
auto cr = dstRect;
impl->state.tm.transform (cr);
cr.bound (originalClip);
impl->state.clip = cr;
auto originalTransformMatrix = impl->state.tm;
double bitmapScaleFactor = d2dBitmap->getScaleFactor ();
CGraphicsTransform bitmapTransform;
bitmapTransform.scale (bitmapScaleFactor, bitmapScaleFactor);
auto invBitmapTransform = bitmapTransform.inverse ();
setTransformMatrix ({});
CRect bitmapBounds (0, 0, bitmap.getSize ().x, bitmap.getSize ().y);
invBitmapTransform.transform (bitmapBounds);
std::array<CRect, NPTD::kPartCount> mySourceRect;
std::array<CRect, NPTD::kPartCount> myDestRect;
desc.calcRects (bitmapBounds, mySourceRect.data ());
desc.calcRects (dstRect, myDestRect.data ());
std::for_each (mySourceRect.begin (), mySourceRect.end (),
[&] (auto& el) { bitmapTransform.transform (el); });
std::for_each (myDestRect.begin (), myDestRect.end (),
[&] (auto& el) { originalTransformMatrix.transform (el); });
impl->doInContext ([&] (auto deviceContext) {
auto drawBitmap = [&] (const CRect& source, const CRect& destination) {
auto sourceRect = convert (source);
deviceContext->DrawBitmap (d2d1Bitmap, convert (destination),
static_cast<FLOAT> (alpha), interpolationMode, &sourceRect);
};
drawBitmap (mySourceRect[NPTD::kPartTopLeft], myDestRect[NPTD::kPartTopLeft]);
drawBitmap (mySourceRect[NPTD::kPartTopRight], myDestRect[NPTD::kPartTopRight]);
drawBitmap (mySourceRect[NPTD::kPartBottomLeft], myDestRect[NPTD::kPartBottomLeft]);
drawBitmap (mySourceRect[NPTD::kPartBottomRight], myDestRect[NPTD::kPartBottomRight]);
auto tm = originalTransformMatrix * invBitmapTransform;
tm.dx = tm.dy = 0;
auto drawBitmapBrush = [&] (CRect src, CRect dst) {
if (auto brush = createBrushFromBitmap (deviceContext, d2d1Bitmap, src, dst, alpha,
quality, &tm))
{
dst.makeIntegral ();
deviceContext->FillRectangle (convert (dst), brush.get ());
}
};