m-aXimilian
fec5c08aaa
* enum field renaming * renderer cleanups * compiling for C++23 * version bump * fix build
51 lines
1.9 KiB
C++
51 lines
1.9 KiB
C++
#include "PixelariumImageViewDefault.hpp"
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#include <format>
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#include "RenderHelpers.hpp"
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#include "imaging/IPixelariumImage.hpp"
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#include "imgui.h"
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/// @brief Displays the image in an ImGui window.
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///
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/// If the image is null, empty, or has an empty name, the function returns immediately. Otherwise, it creates an ImGui
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/// window with a horizontal scrollbar and menu bar. The image is rendered using the CvMatRender object, resizing it to
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/// fit the available window space. The raw and rendered dimensions are displayed below the image.
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void pixelarium::render::PixelariumImageViewDefault::ShowImage()
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{
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if (!this->cached_image_ || this->is_dirty_)
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{
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this->cached_image_ = this->img_->TryGetImage();
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this->is_dirty_ = false;
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}
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if (this->img_->Empty() || this->img_->type_ == imaging::ImageFileType::kUnknown || !cached_image_ ||
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this->img_->Name().empty())
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{
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// do nothing
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return;
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}
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ImGui::Begin(this->img_->Name().c_str(), &this->open_p,
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ImGuiWindowFlags_HorizontalScrollbar | ImGuiWindowFlags_MenuBar);
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this->curr_dim_ = ImGui::GetContentRegionAvail();
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auto new_dim = ImGui::GetContentRegionAvail();
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auto texture =
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dim_changed_p(this->curr_dim_, new_dim)
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? this->render_.Render(static_cast<size_t>(this->curr_dim_.x), static_cast<size_t>(this->curr_dim_.y))
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: this->render_.Render();
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this->curr_dim_ = new_dim;
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ImVec2 dim(cached_image_->cols, cached_image_->rows);
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ImGui::Image(reinterpret_cast<ImTextureID>(reinterpret_cast<void*>(texture)),
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aspect_const_dimensions(dim, new_dim));
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ImGui::Separator();
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ImGui::Text("%s", std::format(" Raw Dimensions W : {}, H: {}", dim.x, dim.y).c_str());
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ImGui::Text("%s", std::format("Render Dimensions W : {}, H: {}", curr_dim_.x, curr_dim_.y).c_str());
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ImGui::End();
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}
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