Misc enhancements (#9)

* deploy docs only for main

* Revert "deploy docs only for main"

This reverts commit 53e37bd8a43e7e20d5a64bed1b3e00ced551dcae.

* init czi specific view

* fix build

lib/imaging/CMakeLists.txt

@@ -29,4 +29,4 @@ target_link_libraries(${IMAGELIBLIBNAME}
 
 target_include_directories(${IMAGELIBLIBNAME}
   PUBLIC ${OpenCV_INCLUDE_DIRS}
-  PRIVATE ${LIBCZI_INCLUDE_DIR})
+  PUBLIC ${LIBCZI_INCLUDE_DIR})

lib/imaging/impl/PixelariumCzi.cpp

@@ -5,6 +5,22 @@
 
 #include "libCZI.h"
 
+pixelarium::imaging::PixelariumCzi::PixelariumCzi(const std::string& uri)
+{
+    if (!std::filesystem::exists(uri))
+    {
+        throw std::runtime_error("Render file not found.");
+    }
+
+    this->is_empty_ = false;
+    this->uri_ = std::filesystem::path(uri);
+
+    auto stream = libCZI::CreateStreamFromFile(this->uri_.wstring().c_str());
+    this->czi_reader_ = libCZI::CreateCZIReader();
+    this->czi_reader_->Open(stream);
+    this->image_statistics_ = this->czi_reader_->GetStatistics();
+}
+
 std::unique_ptr<cv::Mat> CZISubBlockToCvMat(std::shared_ptr<libCZI::IBitmapData> bitmap, libCZI::PixelType pixeltype)
 {
     size_t pixel_size{0};
@@ -81,23 +97,9 @@ std::unique_ptr<cv::Mat> CZISubBlockToCvMat(std::shared_ptr<libCZI::IBitmapData>
     return fill_mat;
 }
 
-pixelarium::imaging::PixelariumCzi::PixelariumCzi(const std::string& uri)
-{
-    if (!std::filesystem::exists(uri))
-    {
-        throw std::runtime_error("Render file not found.");
-    }
-
-    this->is_empty_ = false;
-    this->uri_ = std::filesystem::path(uri);
-}
-
 std::unique_ptr<cv::Mat> pixelarium::imaging::PixelariumCzi::TryGetImage()
 {
-    auto stream = libCZI::CreateStreamFromFile(this->uri_.wstring().c_str());
+    auto block = this->czi_reader_->ReadSubBlock(0);
-    auto cziReader = libCZI::CreateCZIReader();
-    cziReader->Open(stream);
-    auto block = cziReader->ReadSubBlock(0);
     auto bitmap = block->CreateBitmap();
     auto res = CZISubBlockToCvMat(bitmap, block->GetSubBlockInfo().pixelType);
 

lib/imaging/impl/PixelariumCzi.hpp

@@ -1,8 +1,10 @@
 #pragma once
 
+#include <memory>
 #include <string>
 
 #include "../IPixelariumImage.hpp"
+#include "libCZI.h"
 
 namespace pixelarium::imaging
 {
@@ -15,6 +17,11 @@ class PixelariumCzi : public IPixelariumImage
 {
    public:
     explicit PixelariumCzi(const std::string& uri);
+    ~PixelariumCzi()
+    {
+        if (this->czi_reader_)
+            this->czi_reader_->Close();
+    }
 
     // IPixelariumImage member implementations
    public:
@@ -34,6 +41,8 @@ class PixelariumCzi : public IPixelariumImage
 
     bool Empty() const noexcept override { return this->is_empty_; }
 
+    const libCZI::SubBlockStatistics& GetStatistics() const { return this->image_statistics_; }
+
    public:
     const static ImageFileType type_{ImageFileType::CZI};
 
@@ -41,5 +50,9 @@ class PixelariumCzi : public IPixelariumImage
     // this should be set by each image getter
     // after a new cv::Mat could be instantiated
     bool is_empty_{true};
+
+    libCZI::SubBlockStatistics image_statistics_;
+
+    std::shared_ptr<libCZI::ICZIReader> czi_reader_;
 };
 }  // namespace pixelarium::imaging

lib/rendering/CMakeLists.txt

@@ -1,6 +1,8 @@
 set(RENDERLIBNAME pixelariumrenderlib)
 
 set(RENDERLIBSRC
+  RenderHelpers.hpp
+  RenderHelpers.cpp
   CvMatRender.hpp
   CvMatRender.cpp
   RenderImageManager.hpp
@@ -8,6 +10,8 @@ set(RENDERLIBSRC
   IPixelariumImageView.hpp
   PixelariumImageViewDefault.hpp
   PixelariumImageViewDefault.cpp
+  PixelariumImageViewCzi.hpp
+  PixelariumImageViewCzi.cpp
   ImageViewFactory.hpp
   ImageViewFactory.cpp)
 

lib/rendering/ImageViewFactory.cpp

@@ -3,6 +3,7 @@
 #include <memory>
 #include "imaging/PixelariumImageFactory.hpp"
 #include "rendering/IPixelariumImageView.hpp"
+#include "rendering/PixelariumImageViewCzi.hpp"
 #include "rendering/PixelariumImageViewDefault.hpp"
 
 /// @brief Creates a PixelariumImageView from a resource image.
@@ -40,8 +41,7 @@ std::unique_ptr<pixelarium::render::IPixelariumImageView> pixelarium::render::Im
         case imaging::ImageFileType::CZI:
             log_.Info("{}: Creating a CZI View");
             // beware: here we copy the actual image resource over to the new image
-            return std::make_unique<PixelariumImageViewDefault>(img);
+            return std::make_unique<PixelariumImageViewCzi>(img);
-            // return std::make_unique<PixelariumImageViewCzi>(img);
         default:
             return {};
     }

lib/rendering/PixelariumImageViewCzi.cpp

@@ -0,0 +1,66 @@
+#include "PixelariumImageViewCzi.hpp"
+
+#include <format>
+
+#include "RenderHelpers.hpp"
+#include "imaging/IPixelariumImage.hpp"
+#include "imaging/impl/PixelariumCzi.hpp"
+#include "imgui.h"
+
+/// @brief Displays the image in an ImGui window.
+///
+/// If the image is null, empty, or has an empty name, the function returns immediately.  Otherwise, it creates an ImGui
+/// window with a horizontal scrollbar and menu bar. The image is rendered using the CvMatRender object, resizing it to
+/// fit the available window space.  The raw and rendered dimensions are displayed below the image.
+void pixelarium::render::PixelariumImageViewCzi::ShowImage()
+{
+    auto czi_img = std::static_pointer_cast<imaging::PixelariumCzi>(this->img_);
+
+    if (!czi_img) return;
+
+    if (!this->cached_image_ || this->is_dirty_)
+    {
+        this->cached_image_ = this->img_->TryGetImage();
+        this->is_dirty_ = false;
+    }
+
+    if (czi_img->Empty() || this->img_->type_ == imaging::ImageFileType::UNKNOWN || !cached_image_ ||
+        czi_img->Name().empty())
+    {
+        // do nothing
+        return;
+    }
+
+    ImGui::Begin(this->img_->Name().c_str(), &this->open_p,
+                 ImGuiWindowFlags_HorizontalScrollbar | ImGuiWindowFlags_MenuBar);
+
+    this->curr_dim_ = ImGui::GetContentRegionAvail();
+    auto new_dim = ImGui::GetContentRegionAvail();
+    auto texture =
+        dim_changed_p(this->curr_dim_, new_dim)
+            ? this->render_.Render(static_cast<size_t>(this->curr_dim_.x), static_cast<size_t>(this->curr_dim_.y))
+            : this->render_.Render();
+
+    this->curr_dim_ = new_dim;
+
+    ImVec2 dim(cached_image_->cols, cached_image_->rows);
+
+    ImGui::Image(reinterpret_cast<ImTextureID>(reinterpret_cast<void*>(texture)),
+                 aspect_const_dimensions(dim, new_dim));
+
+    ImGui::Separator();
+    ImGui::Text("%s", std::format("   Raw Dimensions W : {}, H: {}", dim.x, dim.y).c_str());
+    ImGui::Text("%s", std::format("Render Dimensions W : {}, H: {}", curr_dim_.x, curr_dim_.y).c_str());
+    ImGui::Text("Dimensions");
+    ImGui::Separator();
+
+    auto stats = czi_img->GetStatistics();
+    stats.dimBounds.EnumValidDimensions(
+        [&](libCZI::DimensionIndex dim, int start, int size) -> bool
+        {
+            ImGui::Text("%c\t Start: %d\t End: %d", libCZI::Utils::DimensionToChar(dim), start, size);
+            return true;
+        });
+
+    ImGui::End();
+}

lib/rendering/PixelariumImageViewCzi.hpp

@@ -0,0 +1,31 @@
+#pragma once
+
+#include "imgui.h"
+#include "rendering/IPixelariumImageView.hpp"
+
+namespace pixelarium::render
+{
+class PixelariumImageViewCzi : public IPixelariumImageView
+{
+    using Image = imaging::IPixelariumImage;
+    using Render = render::CvMatRender;
+
+   public:
+    explicit PixelariumImageViewCzi(std::shared_ptr<Image> img)
+    {
+        img_ = img;
+        render_ = Render(img_);
+    }
+    PixelariumImageViewCzi() = delete;
+    PixelariumImageViewCzi(PixelariumImageViewCzi&) = delete;
+    PixelariumImageViewCzi(const PixelariumImageViewCzi&) = delete;
+    PixelariumImageViewCzi(PixelariumImageViewCzi&&) = delete;
+    PixelariumImageViewCzi& operator=(PixelariumImageViewCzi&) = delete;
+    PixelariumImageViewCzi& operator=(PixelariumImageViewCzi&&) = delete;
+
+    void ShowImage() override;
+
+   private:
+    ImVec2 curr_dim_{};
+};
+}  // namespace pixelarium::render

lib/rendering/PixelariumImageViewDefault.cpp

@@ -2,38 +2,9 @@
 
 #include <format>
 
+#include "RenderHelpers.hpp"
 #include "imaging/IPixelariumImage.hpp"
 #include "imgui.h"
-
-/// @brief Checks if the dimensions of two ImVec2 vectors have changed significantly.
-/// @param ref_rect The reference ImVec2 vector.
-/// @param new_rect The new ImVec2 vector to compare against.
-/// @return True if the absolute difference between the y-coordinates is greater than 5 or the x-coordinates are
-/// different; otherwise, false.
-static bool dim_changed_p(const ImVec2& ref_rect, const ImVec2& new_rect)
-{
-    if (std::abs(ref_rect.y - new_rect.y) > 5 || std::abs(ref_rect.x - new_rect.x))
-    {
-        return true;
-    }
-
-    return false;
-}
-
-/// @brief Calculates dimensions to maintain aspect ratio.
-/// @param img The input image.
-/// @param curr_dim The current dimensions.
-/// @return The calculated dimensions maintaining aspect ratio.
-ImVec2 aspect_const_dimensions(const ImVec2& raw_dim, const ImVec2& curr_dim)
-{
-    const auto w_fact = (curr_dim.x / raw_dim.x);
-    const auto h_fact = (curr_dim.y / raw_dim.y);
-
-    const auto fact = w_fact < h_fact ? w_fact : h_fact;
-
-    return ImVec2(raw_dim.x * fact, raw_dim.y * fact);
-}
-
 /// @brief Displays the image in an ImGui window.
 ///
 /// If the image is null, empty, or has an empty name, the function returns immediately.  Otherwise, it creates an ImGui
@@ -47,13 +18,15 @@ void pixelarium::render::PixelariumImageViewDefault::ShowImage()
         this->is_dirty_ = false;
     }
 
-    if (this->img_->Empty() || this->img_->type_ == imaging::ImageFileType::UNKNOWN || !cached_image_ || this->img_->Name().empty())
+    if (this->img_->Empty() || this->img_->type_ == imaging::ImageFileType::UNKNOWN || !cached_image_ ||
+        this->img_->Name().empty())
     {
         // do nothing
         return;
     }
 
-    ImGui::Begin(this->img_->Name().c_str(), &this->open_p, ImGuiWindowFlags_HorizontalScrollbar | ImGuiWindowFlags_MenuBar);
+    ImGui::Begin(this->img_->Name().c_str(), &this->open_p,
+                 ImGuiWindowFlags_HorizontalScrollbar | ImGuiWindowFlags_MenuBar);
 
     this->curr_dim_ = ImGui::GetContentRegionAvail();
     auto new_dim = ImGui::GetContentRegionAvail();

lib/rendering/RenderHelpers.cpp

@@ -0,0 +1,31 @@
+#include "RenderHelpers.hpp"
+
+#include <cstdlib>
+/// @brief Checks if the dimensions of two ImVec2 vectors have changed significantly.
+/// @param ref_rect The reference ImVec2 vector.
+/// @param new_rect The new ImVec2 vector to compare against.
+/// @return True if the absolute difference between the y-coordinates is greater than 5 or the x-coordinates are
+/// different; otherwise, false.
+bool pixelarium::render::dim_changed_p(const ImVec2& ref_rect, const ImVec2& new_rect)
+{
+    if (std::abs(ref_rect.y - new_rect.y) > 5 || std::abs(ref_rect.x - new_rect.x))
+    {
+        return true;
+    }
+
+    return false;
+}
+
+/// @brief Calculates dimensions to maintain aspect ratio.
+/// @param img The input image.
+/// @param curr_dim The current dimensions.
+/// @return The calculated dimensions maintaining aspect ratio.
+ImVec2 pixelarium::render::aspect_const_dimensions(const ImVec2& raw_dim, const ImVec2& curr_dim)
+{
+    const auto w_fact = (curr_dim.x / raw_dim.x);
+    const auto h_fact = (curr_dim.y / raw_dim.y);
+
+    const auto fact = w_fact < h_fact ? w_fact : h_fact;
+
+    return ImVec2(raw_dim.x * fact, raw_dim.y * fact);
+}

lib/rendering/RenderHelpers.hpp

@@ -0,0 +1,10 @@
+#pragma once
+
+#include "imgui.h"
+
+namespace pixelarium::render
+{
+bool dim_changed_p(const ImVec2& ref_rect, const ImVec2& new_rect);
+
+ImVec2 aspect_const_dimensions(const ImVec2& raw_dim, const ImVec2& curr_dim);
+};  // namespace pixelarium::render