ref: merge TooltipPreviewImage and TooltipWidget (#4268)

* merge TooltipPreviewImage and TooltipWidget

* changelog

* add empty line before return

* fix signalholder include

* add changelog for bugfix

* fix custom scaling issue

Co-authored-by: pajlada <rasmus.karlsson@pajlada.com>

src/singletons/TooltipPreviewImage.cpp

@@ -1,81 +0,0 @@
-#include "TooltipPreviewImage.hpp"
-
-#include "Application.hpp"
-#include "singletons/WindowManager.hpp"
-#include "widgets/TooltipWidget.hpp"
-
-namespace chatterino {
-
-TooltipPreviewImage &TooltipPreviewImage::instance()
-{
-    static TooltipPreviewImage *instance = new TooltipPreviewImage();
-    return *instance;
-}
-
-TooltipPreviewImage::TooltipPreviewImage()
-{
-    auto windows = getApp()->windows;
-
-    this->connections_.managedConnect(windows->gifRepaintRequested, [&] {
-        if (this->image_ && this->image_->animated())
-        {
-            this->refreshTooltipWidgetPixmap();
-        }
-    });
-
-    this->connections_.managedConnect(windows->miscUpdate, [&] {
-        if (this->attemptRefresh)
-        {
-            this->refreshTooltipWidgetPixmap();
-        }
-    });
-}
-
-void TooltipPreviewImage::setImage(ImagePtr image)
-{
-    this->image_ = std::move(image);
-
-    this->refreshTooltipWidgetPixmap();
-}
-
-void TooltipPreviewImage::setImageScale(int w, int h)
-{
-    this->imageWidth_ = w;
-    this->imageHeight_ = h;
-
-    this->refreshTooltipWidgetPixmap();
-}
-
-void TooltipPreviewImage::refreshTooltipWidgetPixmap()
-{
-    auto tooltipWidget = TooltipWidget::instance();
-
-    if (this->image_ && !tooltipWidget->isHidden())
-    {
-        if (auto pixmap = this->image_->pixmapOrLoad())
-        {
-            if (this->imageWidth_ != 0 && this->imageHeight_)
-            {
-                tooltipWidget->setImage(pixmap->scaled(this->imageWidth_,
-                                                       this->imageHeight_,
-                                                       Qt::KeepAspectRatio));
-            }
-            else
-            {
-                tooltipWidget->setImage(*pixmap);
-            }
-
-            this->attemptRefresh = false;
-        }
-        else
-        {
-            this->attemptRefresh = true;
-        }
-    }
-    else
-    {
-        tooltipWidget->clearImage();
-    }
-}
-
-}  // namespace chatterino

src/singletons/TooltipPreviewImage.hpp

@@ -1,36 +0,0 @@
-#pragma once
-
-#include "messages/Image.hpp"
-
-#include <pajlada/signals/signalholder.hpp>
-
-namespace chatterino {
-
-class TooltipPreviewImage
-{
-public:
-    static TooltipPreviewImage &instance();
-    void setImage(ImagePtr image);
-    void setImageScale(int w, int h);
-
-    TooltipPreviewImage(const TooltipPreviewImage &) = delete;
-
-private:
-    TooltipPreviewImage();
-
-private:
-    ImagePtr image_ = nullptr;
-    int imageWidth_ = 0;
-    int imageHeight_ = 0;
-
-    pajlada::Signals::SignalHolder connections_;
-
-    // attemptRefresh is set to true in case we want to preview an image that has not loaded yet (if pixmapOrLoad fails)
-    bool attemptRefresh{false};
-
-    // Refresh the pixmap used in the Tooltip Widget
-    // Called from setImage and from the "gif repaint" signal if the image is animated
-    void refreshTooltipWidgetPixmap();
-};
-
-}  // namespace chatterino