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>

CHANGELOG.md

@@ -16,11 +16,13 @@
 - Bugfix: Fixed crash that could occur when changing Tab layout and utilizing multiple windows. (#4248)
 - Bugfix: Fixed text sometimes not pasting properly when image uploader was disabled. (#4246)
 - Bugfix: Fixed text cursor(caret) not showing in open channel dialog. (#4196)
+- Bugfix: Fixed tooltip images not appearing if mouse hovered only first pixel. (#4268)
 - Dev: Remove protocol from QApplication's Organization Domain (so changed from `https://www.chatterino.com` to `chatterino.com`). (#4256)
 - Dev: Ignore `WM_SHOWWINDOW` hide events, causing fewer attempted rescales. (#4198)
 - Dev: Migrated to C++ 20 (#4252, #4257)
 - Dev: Enable LTO for main branch builds. (#4258, #4260)
 - Dev: Removed unused include directives. (#4266)
+- Dev: Removed TooltipPreviewImage. (#4268)
 - Dev: Removed unused operators in `Image` (#4267)
 
 ## 2.4.0

src/CMakeLists.txt

@@ -316,8 +316,6 @@ set(SOURCE_FILES
         singletons/Theme.hpp
         singletons/Toasts.cpp
         singletons/Toasts.hpp
-        singletons/TooltipPreviewImage.cpp
-        singletons/TooltipPreviewImage.hpp
         singletons/Updates.cpp
         singletons/Updates.hpp
         singletons/WindowManager.cpp

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

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 *)

src/widgets/TooltipWidget.hpp

@@ -1,8 +1,9 @@
 #pragma once
 
+#include "messages/Image.hpp"
 #include "widgets/BaseWindow.hpp"
 
-#include <pajlada/signals/signal.hpp>
+#include <pajlada/signals/signalholder.hpp>
 #include <QLabel>
 #include <QWidget>
 
@@ -16,18 +17,17 @@ public:
     static TooltipWidget *instance();
 
     TooltipWidget(BaseWidget *parent = nullptr);
-    ~TooltipWidget() override;
+    ~TooltipWidget() override = default;
 
     void setText(QString text);
     void setWordWrap(bool wrap);
     void clearImage();
-    void setImage(QPixmap image);
-
-#ifdef USEWINSDK
-    void raise();
-#endif
+    void setImage(ImagePtr image);
+    void setImageScale(int w, int h);
 
 protected:
+    void showEvent(QShowEvent *) override;
+    void hideEvent(QHideEvent *) override;
     void changeEvent(QEvent *) override;
     void leaveEvent(QEvent *) override;
     void themeChangedEvent() override;
@@ -37,9 +37,18 @@ protected:
 private:
     void updateFont();
 
+    // used by WindowManager::gifRepaintRequested signal to progress frames when tooltip image is animated
+    bool refreshPixmap();
+
+    // set to true when tooltip image did not finish loading yet (pixmapOrLoad returned false)
+    bool attemptRefresh{false};
+
+    ImagePtr image_ = nullptr;
+    int customImgWidth = 0;
+    int customImgHeight = 0;
     QLabel *displayImage_;
     QLabel *displayText_;
-    pajlada::Signals::Connection fontChangedConnection_;
+    pajlada::Signals::SignalHolder connections_;
 };
 
 }  // namespace chatterino

src/widgets/helper/ChannelView.cpp

@@ -20,7 +20,6 @@
 #include "singletons/Resources.hpp"
 #include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
-#include "singletons/TooltipPreviewImage.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/Clipboard.hpp"
 #include "util/DistanceBetweenPoints.hpp"
@@ -1659,8 +1658,6 @@ void ChannelView::mouseMoveEvent(QMouseEvent *event)
     }
     else
     {
-        auto &tooltipPreviewImage = TooltipPreviewImage::instance();
-        tooltipPreviewImage.setImageScale(0, 0);
         auto badgeElement = dynamic_cast<const BadgeElement *>(element);
 
         if ((badgeElement || emoteElement) &&
@@ -1671,18 +1668,18 @@ void ChannelView::mouseMoveEvent(QMouseEvent *event)
             {
                 if (emoteElement)
                 {
-                    tooltipPreviewImage.setImage(
+                    tooltipWidget->setImage(
                         emoteElement->getEmote()->images.getImage(3.0));
                 }
                 else if (badgeElement)
                 {
-                    tooltipPreviewImage.setImage(
+                    tooltipWidget->setImage(
                         badgeElement->getEmote()->images.getImage(3.0));
                 }
             }
             else
             {
-                tooltipPreviewImage.setImage(nullptr);
+                tooltipWidget->clearImage();
             }
         }
         else
@@ -1705,7 +1702,7 @@ void ChannelView::mouseMoveEvent(QMouseEvent *event)
             auto thumbnailSize = getSettings()->thumbnailSize;
             if (!thumbnailSize)
             {
-                tooltipPreviewImage.setImage(nullptr);
+                tooltipWidget->clearImage();
             }
             else
             {
@@ -1718,13 +1715,12 @@ void ChannelView::mouseMoveEvent(QMouseEvent *event)
                     shouldHideThumbnail
                         ? Image::fromResourcePixmap(getResources().streamerMode)
                         : element->getThumbnail();
-                tooltipPreviewImage.setImage(std::move(thumb));
+                tooltipWidget->setImage(std::move(thumb));
 
                 if (element->getThumbnailType() ==
                     MessageElement::ThumbnailType::Link_Thumbnail)
                 {
-                    tooltipPreviewImage.setImageScale(thumbnailSize,
-                                                      thumbnailSize);
+                    tooltipWidget->setImageScale(thumbnailSize, thumbnailSize);
                 }
             }
         }
@@ -1732,10 +1728,7 @@ void ChannelView::mouseMoveEvent(QMouseEvent *event)
         tooltipWidget->moveTo(this, event->globalPos());
         tooltipWidget->setWordWrap(isLinkValid);
         tooltipWidget->setText(element->getTooltip());
-        tooltipWidget->adjustSize();
-        tooltipWidget->setWindowFlag(Qt::WindowStaysOnTopHint, true);
         tooltipWidget->show();
-        tooltipWidget->raise();
     }
 
     // check if word has a link

src/widgets/splits/SplitHeader.cpp

@@ -13,7 +13,6 @@
 #include "singletons/Resources.hpp"
 #include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
-#include "singletons/TooltipPreviewImage.hpp"
 #include "singletons/WindowManager.hpp"
 #include "util/Helpers.hpp"
 #include "util/LayoutCreator.hpp"
@@ -928,9 +927,8 @@ void SplitHeader::enterEvent(QEvent *event)
             dynamic_cast<TwitchChannel *>(channel)->refreshTitle();
         }
 
-        TooltipPreviewImage::instance().setImage(nullptr);
-
         auto tooltip = TooltipWidget::instance();
+        tooltip->clearImage();
         tooltip->setText(this->tooltipText_);
         tooltip->setWordWrap(true);
         tooltip->adjustSize();
@@ -939,7 +937,6 @@ void SplitHeader::enterEvent(QEvent *event)
 
         tooltip->moveTo(this, pos, false);
         tooltip->show();
-        tooltip->raise();
     }
 
     BaseWidget::enterEvent(event);