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/widgets/TooltipWidget.cpp

@@ -1,17 +1,11 @@
 #include "TooltipWidget.hpp"
 
+#include "Application.hpp"
 #include "singletons/Fonts.hpp"
-
-#include <QDebug>
-#include <QDesktopWidget>
-#include <QStyle>
-#include <QVBoxLayout>
-
-#ifdef USEWINSDK
-#    include <Windows.h>
-#endif
+#include "singletons/WindowManager.hpp"
 
 #include <QPainter>
+#include <QVBoxLayout>
 
 namespace chatterino {
 
@@ -25,44 +19,52 @@ TooltipWidget::TooltipWidget(BaseWidget *parent)
     : BaseWindow({BaseWindow::TopMost, BaseWindow::DontFocus,
                   BaseWindow::DisableLayoutSave},
                  parent)
-    , displayImage_(new QLabel())
-    , displayText_(new QLabel())
+    , displayImage_(new QLabel(this))
+    , displayText_(new QLabel(this))
 {
     this->setStyleSheet("color: #fff; background: rgba(11, 11, 11, 0.8)");
     this->setAttribute(Qt::WA_TranslucentBackground);
-    //this->setWindowOpacity(0.8);
-    this->updateFont();
+    this->setWindowFlag(Qt::WindowStaysOnTopHint, true);
+
     this->setStayInScreenRect(true);
 
-    displayImage_->hide();
     displayImage_->setAlignment(Qt::AlignHCenter);
     displayImage_->setStyleSheet("background: transparent");
+
     displayText_->setAlignment(Qt::AlignHCenter);
-    displayText_->setText("tooltip text");
     displayText_->setStyleSheet("background: transparent");
-    auto layout = new QVBoxLayout();
+
+    auto *layout = new QVBoxLayout(this);
+    layout->setSizeConstraint(QLayout::SetFixedSize);
     layout->setContentsMargins(10, 5, 10, 5);
     layout->addWidget(displayImage_);
     layout->addWidget(displayText_);
     this->setLayout(layout);
 
-    this->fontChangedConnection_ = getFonts()->fontChanged.connect([this] {
+    this->connections_.managedConnect(getFonts()->fontChanged, [this] {
         this->updateFont();
     });
-}
+    this->updateFont();
 
-TooltipWidget::~TooltipWidget()
-{
-    this->fontChangedConnection_.disconnect();
-}
+    auto windows = getApp()->windows;
+    this->connections_.managedConnect(windows->gifRepaintRequested, [this] {
+        if (this->image_ && this->image_->animated())
+        {
+            this->refreshPixmap();
+        }
+    });
 
-#ifdef USEWINSDK
-void TooltipWidget::raise()
-{
-    ::SetWindowPos(HWND(this->winId()), HWND_TOPMOST, 0, 0, 0, 0,
-                   SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
+    this->connections_.managedConnect(windows->miscUpdate, [this] {
+        if (this->image_ && this->attemptRefresh)
+        {
+            if (this->refreshPixmap())
+            {
+                this->attemptRefresh = false;
+                this->adjustSize();
+            }
+        }
+    });
 }
-#endif
 
 void TooltipWidget::themeChangedEvent()
 {
@@ -100,12 +102,69 @@ void TooltipWidget::setWordWrap(bool wrap)
 void TooltipWidget::clearImage()
 {
     this->displayImage_->hide();
+    this->image_ = nullptr;
+    this->setImageScale(0, 0);
 }
 
-void TooltipWidget::setImage(QPixmap image)
+void TooltipWidget::setImage(ImagePtr image)
 {
+    if (this->image_ == image)
+    {
+        return;
+    }
+    // hide image until loaded and reset scale
+    this->clearImage();
+    this->image_ = std::move(image);
+    this->refreshPixmap();
+}
+
+void TooltipWidget::setImageScale(int w, int h)
+{
+    if (this->customImgWidth == w && this->customImgHeight == h)
+    {
+        return;
+    }
+    this->customImgWidth = w;
+    this->customImgHeight = h;
+    this->refreshPixmap();
+}
+
+void TooltipWidget::hideEvent(QHideEvent *)
+{
+    this->clearImage();
+}
+
+void TooltipWidget::showEvent(QShowEvent *)
+{
+    this->adjustSize();
+}
+
+bool TooltipWidget::refreshPixmap()
+{
+    if (!this->image_)
+    {
+        return false;
+    }
+
+    auto pixmap = this->image_->pixmapOrLoad();
+    if (!pixmap)
+    {
+        this->attemptRefresh = true;
+        return false;
+    }
+
+    if (this->customImgWidth > 0 || this->customImgHeight > 0)
+    {
+        this->displayImage_->setPixmap(pixmap->scaled(
+            this->customImgWidth, this->customImgHeight, Qt::KeepAspectRatio));
+    }
+    else
+    {
+        this->displayImage_->setPixmap(*pixmap);
+    }
     this->displayImage_->show();
-    this->displayImage_->setPixmap(image);
+
+    return true;
 }
 
 void TooltipWidget::changeEvent(QEvent *)