Mercurial > hg > orthanc-stone
diff OrthancStone/Sources/Deprecated/Radiography/RadiographyWidget.cpp @ 1512:244ad1e4e76a
reorganization of folders
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 07 Jul 2020 16:21:02 +0200 |
parents | Framework/Deprecated/Radiography/RadiographyWidget.cpp@30deba7bc8e2 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OrthancStone/Sources/Deprecated/Radiography/RadiographyWidget.cpp Tue Jul 07 16:21:02 2020 +0200 @@ -0,0 +1,284 @@ +/** + * Stone of Orthanc + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2020 Osimis S.A., Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Affero General Public License + * as published by the Free Software Foundation, either version 3 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + + +#include "RadiographyWidget.h" + +#include <OrthancException.h> +#include <Images/Image.h> +#include <Images/ImageProcessing.h> + +#include "RadiographyMaskLayer.h" + +namespace OrthancStone +{ + + bool RadiographyWidget::IsInvertedInternal() const + { + // MONOCHROME1 images must be inverted and the user can invert the + // image, too -> XOR the two + return (scene_->GetPreferredPhotomotricDisplayMode() == + RadiographyPhotometricDisplayMode_Monochrome1) ^ invert_; + } + + void RadiographyWidget::RenderBackground( + Orthanc::ImageAccessor& image, float minValue, float maxValue) + { + // wipe background before rendering + float backgroundValue = minValue; + + switch (scene_->GetPreferredPhotomotricDisplayMode()) + { + case RadiographyPhotometricDisplayMode_Monochrome1: + case RadiographyPhotometricDisplayMode_Default: + if (IsInvertedInternal()) + backgroundValue = maxValue; + else + backgroundValue = minValue; + break; + case RadiographyPhotometricDisplayMode_Monochrome2: + if (IsInvertedInternal()) + backgroundValue = minValue; + else + backgroundValue = maxValue; + break; + default: + throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); + } + + Orthanc::ImageProcessing::Set(image, static_cast<int64_t>(backgroundValue)); + } + + bool RadiographyWidget::RenderInternal(unsigned int width, + unsigned int height, + ImageInterpolation interpolation) + { + if (floatBuffer_.get() == NULL || + floatBuffer_->GetWidth() != width || + floatBuffer_->GetHeight() != height) + { + floatBuffer_.reset(new Orthanc::Image( + Orthanc::PixelFormat_Float32, width, height, false)); + + if (floatBuffer_.get() == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory, "RadiographyWidget::RenderInternal: unable to allocate float buffer"); + } + } + + if (cairoBuffer_.get() == NULL || + cairoBuffer_->GetWidth() != width || + cairoBuffer_->GetHeight() != height) + { + cairoBuffer_.reset(new CairoSurface(width, height, false /* no alpha */)); + + if (cairoBuffer_.get() == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory, "RadiographyWidget::RenderInternal: unable to allocate cairo buffer"); + } + } + + RenderBackground(*floatBuffer_, 0.0, 65535.0); + + scene_->Render(*floatBuffer_, GetView().GetMatrix(), interpolation, true); + + // Conversion from Float32 to BGRA32 (cairo). Very similar to + // GrayscaleFrameRenderer => TODO MERGE? + Orthanc::ImageAccessor target; + cairoBuffer_->GetWriteableAccessor(target); + + bool invert = IsInvertedInternal(); + + for (unsigned int y = 0; y < height; y++) + { + const float* p = reinterpret_cast<const float*>(floatBuffer_->GetConstRow(y)); + uint8_t* q = reinterpret_cast<uint8_t*>(target.GetRow(y)); + + for (unsigned int x = 0; x < width; x++, p++, q += 4) + { + uint8_t v = 0; + if (*p >= 65535.0) + { + v = 255; + } + else if (*p <= 0.0) + { + v = 0; + } + else + { + v = static_cast<uint8_t>(*p / 256.0); + } + + if (invert) + { + v = 255 - v; + } + + q[0] = v; + q[1] = v; + q[2] = v; + q[3] = 255; + } + } + + return true; + } + + + bool RadiographyWidget::RenderScene(CairoContext& context, + const Deprecated::ViewportGeometry& view) + { + cairo_t* cr = context.GetObject(); + + if (RenderInternal(context.GetWidth(), context.GetHeight(), interpolation_)) + { + // https://www.cairographics.org/FAQ/#paint_from_a_surface + cairo_save(cr); + cairo_identity_matrix(cr); + cairo_set_source_surface(cr, cairoBuffer_->GetObject(), 0, 0); + cairo_paint(cr); + cairo_restore(cr); + } + else + { + // https://www.cairographics.org/FAQ/#clear_a_surface + context.SetSourceColor(0, 0, 0); + cairo_paint(cr); + } + + if (hasSelection_) + { + scene_->DrawBorder( + context, static_cast<unsigned int>(selectedLayer_), view.GetZoom()); + } + + return true; + } + + + RadiographyWidget::RadiographyWidget(boost::shared_ptr<RadiographyScene> scene, + const std::string& name) : + WorldSceneWidget(name), + invert_(false), + interpolation_(ImageInterpolation_Nearest), + hasSelection_(false), + selectedLayer_(0) // Dummy initialization + { + SetScene(scene); + } + + + void RadiographyWidget::Select(size_t layer) + { + hasSelection_ = true; + selectedLayer_ = layer; + + NotifyContentChanged(); + BroadcastMessage(SelectionChangedMessage(*this)); + } + + void RadiographyWidget::Unselect() + { + hasSelection_ = false; + + NotifyContentChanged(); + BroadcastMessage(SelectionChangedMessage(*this)); + } + + bool RadiographyWidget::LookupSelectedLayer(size_t& layer) const + { + if (hasSelection_) + { + layer = selectedLayer_; + return true; + } + else + { + return false; + } + } + + + void RadiographyWidget::OnGeometryChanged(const RadiographyScene::GeometryChangedMessage& message) + { +// LOG(INFO) << "Scene geometry has changed"; + FitContent(); + } + + + void RadiographyWidget::OnContentChanged(const RadiographyScene::ContentChangedMessage& message) + { +// LOG(INFO) << "Scene content has changed"; + NotifyContentChanged(); + } + + void RadiographyWidget::OnLayerRemoved(const RadiographyScene::LayerRemovedMessage& message) + { + size_t removedLayerIndex = message.GetLayerIndex(); + if (hasSelection_ && selectedLayer_ == removedLayerIndex) + { + Unselect(); + } + NotifyContentChanged(); + } + + void RadiographyWidget::SetInvert(bool invert) + { + if (invert_ != invert) + { + invert_ = invert; + NotifyContentChanged(); + } + } + + + void RadiographyWidget::SwitchInvert() + { + invert_ = !invert_; + NotifyContentChanged(); + } + + + void RadiographyWidget::SetInterpolation(ImageInterpolation interpolation) + { + if (interpolation_ != interpolation) + { + interpolation_ = interpolation; + NotifyContentChanged(); + } + } + + void RadiographyWidget::SetScene(boost::shared_ptr<RadiographyScene> scene) + { + scene_ = scene; + + Register<RadiographyScene::GeometryChangedMessage>(*scene_, &RadiographyWidget::OnGeometryChanged); + Register<RadiographyScene::ContentChangedMessage>(*scene_, &RadiographyWidget::OnContentChanged); + Register<RadiographyScene::LayerRemovedMessage>(*scene_, &RadiographyWidget::OnLayerRemoved); + + Unselect(); + + NotifyContentChanged(); + + // force redraw + FitContent(); + } +}