feat: add prev and next button

2020-07-04 13:49:12 +08:00 · 2020-07-04 13:49:12 +08:00 · fb24e54579
commit fb24e54579
parent 3b1af64397
9 changed files with 221 additions and 13 deletions
--- a/README.md
+++ b/README.md
@ -23,6 +23,7 @@ Feel free to open up an issue to request an new language to translate.

 - Mixed `CR LF` and `LF`.
 - Ugly action icons.
+ - Ugly implementations.
 - For windows build, win32 APIs are used.
 - No drag-window-border-to-resize support under non-windows platforms (I use <kbd>Meta+Drag</kbd> to resize window under my x11 desktop).

--- a/graphicsview.cpp
+++ b/graphicsview.cpp
@ -242,7 +242,7 @@ void GraphicsView::dropEvent(QDropEvent *event)
        if (urls.isEmpty()) {
            showText(tr("File url list is empty"));
        } else {
-            showFileFromUrl(urls.first());
+            showFileFromUrl(urls.first(), true);
        }
    } else if (mimeData->hasImage()) {
        QImage img = qvariant_cast<QImage>(mimeData->imageData());
--- a/icons/go-next.svg
+++ b/icons/go-next.svg
@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="75"
+   height="75"
+   viewBox="0 0 19.84375 19.843751"
+   version="1.1"
+   id="svg8"
+   inkscape:version="1.0 (4035a4fb49, 2020-05-01)"
+   sodipodi:docname="go-next.svg">
+  <defs
+     id="defs2" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#282929"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.76862745"
+     inkscape:pageshadow="2"
+     inkscape:zoom="16.000001"
+     inkscape:cx="35.333099"
+     inkscape:cy="37.582065"
+     inkscape:document-units="px"
+     inkscape:current-layer="layer1"
+     inkscape:document-rotation="0"
+     showgrid="false"
+     units="px"
+     inkscape:pagecheckerboard="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:window-width="1920"
+     inkscape:window-height="1001"
+     inkscape:window-x="-9"
+     inkscape:window-y="-9"
+     inkscape:window-maximized="1">
+    <sodipodi:guide
+       position="11.453565,9.9198082"
+       orientation="0,-1"
+       id="guide857" />
+    <sodipodi:guide
+       position="9.9229088,19.564698"
+       orientation="1,0"
+       id="guide837" />
+  </sodipodi:namedview>
+  <metadata
+     id="metadata5">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="图层 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <ellipse
+       style="opacity:1;fill:#000000;fill-opacity:0.15678;stroke:#ffffff;stroke-width:0.396875;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       id="path849"
+       cx="9.9368067"
+       cy="9.915391"
+       rx="8.6764698"
+       ry="8.9158831" />
+    <path
+       style="fill:none;stroke:#ffffff;stroke-width:0.396875;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       d="M 8.3550725,6.9255115 11.353504,9.9239423 8.3550725,12.91402"
+       id="path867" />
+  </g>
+</svg>
--- a/icons/go-previous.svg
+++ b/icons/go-previous.svg
@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   sodipodi:docname="go-previous.svg"
+   inkscape:version="1.0 (4035a4fb49, 2020-05-01)"
+   id="svg8"
+   version="1.1"
+   viewBox="0 0 19.84375 19.843751"
+   height="75"
+   width="75">
+  <defs
+     id="defs2" />
+  <sodipodi:namedview
+     inkscape:window-maximized="1"
+     inkscape:window-y="-9"
+     inkscape:window-x="-9"
+     inkscape:window-height="1001"
+     inkscape:window-width="1920"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     inkscape:pagecheckerboard="false"
+     units="px"
+     showgrid="false"
+     inkscape:document-rotation="0"
+     inkscape:current-layer="layer1"
+     inkscape:document-units="px"
+     inkscape:cy="45.995918"
+     inkscape:cx="29.794477"
+     inkscape:zoom="11.313709"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0.76862745"
+     borderopacity="1.0"
+     bordercolor="#666666"
+     pagecolor="#282929"
+     id="base">
+    <sodipodi:guide
+       id="guide857"
+       orientation="0,-1"
+       position="11.453565,9.9198082" />
+    <sodipodi:guide
+       id="guide837"
+       orientation="1,0"
+       position="9.9229088,19.564698" />
+  </sodipodi:namedview>
+  <metadata
+     id="metadata5">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     id="layer1"
+     inkscape:groupmode="layer"
+     inkscape:label="图层 1">
+    <ellipse
+       ry="8.9158831"
+       rx="8.6764698"
+       cy="9.915391"
+       cx="9.9368067"
+       id="path849"
+       style="opacity:1;fill:#000000;fill-opacity:0.15678;stroke:#ffffff;stroke-width:0.396875;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+    <path
+       id="path867"
+       d="M 11.494016,6.9255115 8.4955849,9.9239423 11.494016,12.91402"
+       style="fill:none;stroke:#ffffff;stroke-width:0.396875;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+  </g>
+</svg>
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@ -31,6 +31,7 @@ MainWindow::MainWindow(QWidget *parent) :
    this->setAttribute(Qt::WA_TranslucentBackground, true);
    this->setMinimumSize(710, 530);
    this->setWindowIcon(QIcon(":/icons/app-icon.svg"));
+    this->setMouseTracking(true);

    m_fadeOutAnimation = new QPropertyAnimation(this, "windowOpacity");
    m_fadeOutAnimation->setDuration(300);
@ -72,13 +73,29 @@ MainWindow::MainWindow(QWidget *parent) :
    connect(m_graphicsView, &GraphicsView::requestGallery,
            this, &MainWindow::loadGalleryBySingleLocalFile);

-    m_closeButton = new ToolButton(m_graphicsView);
+    m_closeButton = new ToolButton(true, m_graphicsView);
    m_closeButton->setIcon(QIcon(":/icons/window-close"));
    m_closeButton->setIconSize(QSize(50, 50));

    connect(m_closeButton, &QAbstractButton::clicked,
            this, &MainWindow::closeWindow);

+    m_prevButton = new ToolButton(false, m_graphicsView);
+    m_prevButton->setIcon(QIcon(":/icons/go-previous"));
+    m_prevButton->setIconSize(QSize(75, 75));
+    m_prevButton->setVisible(false);
+    m_prevButton->setOpacity(0, false);
+    m_nextButton = new ToolButton(false, m_graphicsView);
+    m_nextButton->setIcon(QIcon(":/icons/go-next"));
+    m_nextButton->setIconSize(QSize(75, 75));
+    m_nextButton->setVisible(false);
+    m_nextButton->setOpacity(0, false);
+
+    connect(m_prevButton, &QAbstractButton::clicked,
+            this, &MainWindow::galleryPrev);
+    connect(m_nextButton, &QAbstractButton::clicked,
+            this, &MainWindow::galleryNext);
+
    m_bottomButtonGroup = new BottomButtonGroup(this);

    connect(m_bottomButtonGroup, &BottomButtonGroup::resetToOriginalBtnClicked,
@ -109,6 +126,11 @@ MainWindow::MainWindow(QWidget *parent) :
    m_gv->setOpacity(0, false);
    m_closeButton->setOpacity(0, false);

+    connect(this, &MainWindow::galleryLoaded, this, [this]() {
+        m_prevButton->setVisible(isGalleryAvailable());
+        m_nextButton->setVisible(isGalleryAvailable());
+    });
+
    QShortcut * quitAppShorucut = new QShortcut(QKeySequence(Qt::Key_Space), this);
    connect(quitAppShorucut, &QShortcut::activated,
            std::bind(&MainWindow::quitAppAction, this, false));
@ -222,13 +244,13 @@ void MainWindow::loadGalleryBySingleLocalFile(const QString &path)
        }
    }

-//    qDebug() << m_files << m_currentFileIndex;
+    emit galleryLoaded();
 }

 void MainWindow::galleryPrev()
 {
    int count = m_files.count();
-    if (m_currentFileIndex < 0 || m_files.isEmpty() || m_currentFileIndex >= m_files.count()) {
+    if (!isGalleryAvailable()) {
        return;
    }

@ -240,7 +262,7 @@ void MainWindow::galleryPrev()
 void MainWindow::galleryNext()
 {
    int count = m_files.count();
-    if (m_currentFileIndex < 0 || m_files.isEmpty() || m_currentFileIndex >= m_files.count()) {
+    if (!isGalleryAvailable()) {
        return;
    }

@ -249,6 +271,14 @@ void MainWindow::galleryNext()
    m_graphicsView->showFileFromUrl(m_files.at(m_currentFileIndex), false);
 }

+bool MainWindow::isGalleryAvailable()
+{
+    if (m_currentFileIndex < 0 || m_files.isEmpty() || m_currentFileIndex >= m_files.count()) {
+        return false;
+    }
+    return true;
+}
+
 void MainWindow::showEvent(QShowEvent *event)
 {
    updateWidgetsPosition();
@ -262,6 +292,8 @@ void MainWindow::enterEvent(QEvent *event)
    m_gv->setOpacity(1);

    m_closeButton->setOpacity(1);
+    m_prevButton->setOpacity(1);
+    m_nextButton->setOpacity(1);

    return QMainWindow::enterEvent(event);
 }
@ -272,6 +304,8 @@ void MainWindow::leaveEvent(QEvent *event)
    m_gv->setOpacity(0);

    m_closeButton->setOpacity(0);
+    m_prevButton->setOpacity(0);
+    m_nextButton->setOpacity(0);

    return QMainWindow::leaveEvent(event);
 }
@ -537,6 +571,9 @@ void MainWindow::closeWindow()
 void MainWindow::updateWidgetsPosition()
 {
    m_closeButton->move(width() - m_closeButton->width(), 0);
+    m_prevButton->move(25, (height() - m_prevButton->height()) / 2);
+    m_nextButton->move(width() - m_nextButton->width() - 25,
+                       (height() - m_prevButton->height()) / 2);
    m_bottomButtonGroup->move((width() - m_bottomButtonGroup->width()) / 2,
                              height() - m_bottomButtonGroup->height());
    m_gv->move(width() - m_gv->width(), height() - m_gv->height());
@ -546,6 +583,8 @@ void MainWindow::toggleProtectedMode()
 {
    m_protectedMode = !m_protectedMode;
    m_closeButton->setVisible(!m_protectedMode);
+    m_prevButton->setVisible(!m_protectedMode);
+    m_nextButton->setVisible(!m_protectedMode);
 }

 void MainWindow::toggleStayOnTop()
--- a/mainwindow.h
+++ b/mainwindow.h
@ -31,6 +31,10 @@ public:
    void loadGalleryBySingleLocalFile(const QString &path);
    void galleryPrev();
    void galleryNext();
+    bool isGalleryAvailable();
+
+signals:
+    void galleryLoaded();

 protected slots:
    void showEvent(QShowEvent *event) override;
@ -61,6 +65,8 @@ private:
    QPropertyAnimation *m_floatUpAnimation;
    QParallelAnimationGroup *m_exitAnimationGroup;
    ToolButton *m_closeButton;
+    ToolButton *m_prevButton;
+    ToolButton *m_nextButton;
    GraphicsView *m_graphicsView;
    NavigatorView *m_gv;
    BottomButtonGroup *m_bottomButtonGroup;
--- a/resources.qrc
+++ b/resources.qrc
@ -8,5 +8,7 @@
        <file>icons/view-background-checkerboard.svg</file>
        <file>icons/app-icon.svg</file>
        <file>icons/window-close.svg</file>
+        <file>icons/go-next.svg</file>
+        <file>icons/go-previous.svg</file>
    </qresource>
 </RCC>
--- a/toolbutton.cpp
+++ b/toolbutton.cpp
@ -6,18 +6,20 @@
 #include <QGraphicsOpacityEffect>
 #include <QPropertyAnimation>

-ToolButton::ToolButton(QWidget *parent)
+ToolButton::ToolButton(bool hoverColor, QWidget *parent)
    : QPushButton(parent)
    , m_opacityHelper(new OpacityHelper(this))
 {
    setFlat(true);
-    setFixedSize(50, 50);
-    setStyleSheet("QPushButton {"
+    QString qss = "QPushButton {"
                  "background: transparent;"
-                  "}"
-                  "QPushButton:hover {"
-                  "background: red;"
-                  "}");
+                  "}";
+    if (hoverColor) {
+        qss += "QPushButton:hover {"
+               "background: red;"
+               "}";
+    }
+    setStyleSheet(qss);
 }

 void ToolButton::setOpacity(qreal opacity, bool animated)
--- a/toolbutton.h
+++ b/toolbutton.h
@ -8,7 +8,7 @@ class ToolButton : public QPushButton
 {
    Q_OBJECT
 public:
-    ToolButton(QWidget * parent = nullptr);
+    ToolButton(bool hoverColor = false, QWidget * parent = nullptr);

 public slots:
    void setOpacity(qreal opacity, bool animated = true);