linuxdeepin · deepin-bot · Apr 28, 2026 · Apr 28, 2026
diff --git a/.gitignore b/.gitignore
@@ -26,6 +26,7 @@ ui_*.h
 #linglong building dir
 linglong
 build
+obj-x86_64-linux-gnu/
 
 # vscode
 .vscode

diff --git a/reader/app/Global.h b/reader/app/Global.h
@@ -1,5 +1,5 @@
 // Copyright (C) 2019 ~ 2020 Uniontech Software Technology Co.,Ltd.
-// SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2023 - 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
 
@@ -145,5 +145,7 @@ const QString key_ctrl_shift_s     = "Ctrl+Shift+S";    // 另存为
 const QString key_ctrl_shift_slash = "Ctrl+Shift+/";
 const QString key_ctrl_home        = "Ctrl+Home";       //第一页
 const QString key_ctrl_end         = "Ctrl+End";        //最后一页
+
+const int key_scroll_step_pixels = 20;                  // 上下键滚动步长（像素）
 }
 #endif // GLOBAL_H
diff --git a/reader/browser/SheetBrowser.cpp b/reader/browser/SheetBrowser.cpp
@@ -1,5 +1,5 @@
 // Copyright (C) 2019 ~ 2026 Uniontech Software Technology Co.,Ltd.
-// SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2023 - 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
 
@@ -48,6 +48,7 @@ DWIDGET_USE_NAMESPACE
 
 #define REPEAT_MOVE_DELAY 500
 const qreal deltaManhattanLength = 12.0;
+
 SheetBrowser::SheetBrowser(DocSheet *parent) : DGraphicsView(parent), m_sheet(parent)
 {
     qCDebug(appLog) << "SheetBrowser constructor started";
@@ -766,6 +767,17 @@ void SheetBrowser::keyPressEvent(QKeyEvent *event)
             m_sheet->jumpToPrevPage();
             return;
         }
+
+        if (event->key() == Qt::Key_Down) {
+            event->accept();
+            verticalScrollBar()->setValue(verticalScrollBar()->value() + Dr::key_scroll_step_pixels);
+            return;
+        }
+        if (event->key() == Qt::Key_Up) {
+            event->accept();
+            verticalScrollBar()->setValue(verticalScrollBar()->value() - Dr::key_scroll_step_pixels);
+            return;
+        }
     }
     DGraphicsView::keyPressEvent(event);
 }
@@ -1657,6 +1669,9 @@ int SheetBrowser::currentPage()
 int SheetBrowser::currentScrollValueForPage()
 {
     // qCDebug(appLog) << "SheetBrowser::currentScrollValueForPage() - Current scroll value for page";
+    if (m_items.isEmpty())
+        return 1;
+
     int value = verticalScrollBar()->value();
 
     int index = 0;
@@ -1680,7 +1695,12 @@ int SheetBrowser::currentScrollValueForPage()
         }
     }
 
-    return index + 1;
+    // 确保页码在有效范围内 [1, m_items.count()]
+    int page = index + 1;
+    if (page < 1) page = 1;
+    if (page > m_items.count()) page = m_items.count();
+
+    return page;
 }
 
 void SheetBrowser::setCurrentPage(int page)

diff --git a/reader/uiframe/CentralDocPage.cpp b/reader/uiframe/CentralDocPage.cpp
@@ -1,5 +1,5 @@
 // Copyright (C) 2019 ~ 2020 Uniontech Software Technology Co.,Ltd.
-// SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2023 - 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
 
@@ -22,12 +22,13 @@
 #include <QVBoxLayout>
 #include <QStackedLayout>
 #include <QDesktopServices>
 #include <QScreen>
 #include <QUrl>
 #include <QDesktopServices>
+#include <QScrollBar>
 #include <QStackedLayout>
 #include <QMimeType>
 #include <QMimeDatabase>
 #include <QProcess>
 #include <QUuid>
 #include <QTimer>
@@ -737,6 +738,18 @@
             } else if (s == Dr::key_alt_a) {
                 qCInfo(appLog) << "s == Dr::key_alt_a";
                 sheet->addSelectedTextHightlightAnnotation();
+            } else if (s == Dr::key_down) {
+                // 上下键按固定像素滚动（每次约一行）
+                if (sheet->getSheetBrowser()) {
+                    sheet->getSheetBrowser()->verticalScrollBar()->setValue(
+                        sheet->getSheetBrowser()->verticalScrollBar()->value() + Dr::key_scroll_step_pixels);
+                }
+            } else if (s == Dr::key_up) {
+                // 上下键按固定像素滚动（每次约一行）
+                if (sheet->getSheetBrowser()) {
+                    sheet->getSheetBrowser()->verticalScrollBar()->setValue(
+                        sheet->getSheetBrowser()->verticalScrollBar()->value() - Dr::key_scroll_step_pixels);
+                }
             }
             // 屏蔽右侧区域的切页快捷键，使用默认的滚动效果
             /*else if (s == Dr::key_left) {

diff --git a/reader/widgets/ShortCutShow.cpp b/reader/widgets/ShortCutShow.cpp
@@ -1,5 +1,5 @@
 // Copyright (C) 2019 ~ 2020 Uniontech Software Technology Co.,Ltd.
-// SPDX-FileCopyrightText: 2023 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2023 - 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
 
@@ -125,6 +125,8 @@ void ShortCutShow::initPDF()
              {Dr::key_ctrl_smaller    , tr("Zoom out")           },
              {Dr::key_pgUp            , tr("Page up")            },
              {Dr::key_pgDown          , tr("Page down")          },
+             {Dr::key_up              , tr("Scroll up one line")  },
+             {Dr::key_down            , tr("Scroll down one line") },
              {Dr::key_ctrl_home       , tr("Move to the beginning") },
              {Dr::key_ctrl_end        , tr("Move to the end")  },
              {Dr::key_esc             , tr("Exit")               }}},

diff --git a/translations/deepin-reader.ts b/translations/deepin-reader.ts
@@ -11,7 +11,7 @@
     <message>
         <location filename="../reader/Application.cpp" line="40"/>
         <source>Document Viewer is a tool for reading document files, supporting %1.</source>
-        <translation type="unfinished"></translation>
+        <translation>Document Viewer is a tool for reading document files, supporting %1.</translation>
     </message>
 </context>
 <context>

diff --git a/translations/deepin-reader_ady.ts b/translations/deepin-reader_ady.ts
@@ -618,6 +618,17 @@
         <source>Move to the end</source>
         <translation>نۇرغۇن چەق</translation>
     </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
+        <source>Scroll up one line</source>
+        <translation>Зэкъо гупэм елъэӀу</translation>
+    </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="129"/>
+        <source>Scroll down one line</source>
+        <translation>Зэкъо лъэныкъом елъэӀу</translation>
+    </message>
+
     <message>
         <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
         <source>Select text</source>

diff --git a/translations/deepin-reader_af.ts b/translations/deepin-reader_af.ts
@@ -618,6 +618,17 @@
         <source>Move to the end</source>
         <translation>Verplaats na die einde</translation>
     </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
+        <source>Scroll up one line</source>
+        <translation>Scroll up one line</translation>
+    </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="129"/>
+        <source>Scroll down one line</source>
+        <translation>Scroll down one line</translation>
+    </message>
+
     <message>
         <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
         <source>Select text</source>
@@ -827,7 +838,7 @@
     <message>
         <location filename="../reader/main.cpp" line="49"/>
         <source>Generate thumbnail.</source>
-        <translation type="unfinished"></translation>
+        <translation>Generate thumbnail.</translation>
     </message>
 </context>
 </TS>
diff --git a/translations/deepin-reader_am_ET.ts b/translations/deepin-reader_am_ET.ts
@@ -618,6 +618,17 @@
         <source>Move to the end</source>
         <translation>გადატანა ბოლოში</translation>
     </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
+        <source>Scroll up one line</source>
+        <translation>Scroll up one line</translation>
+    </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="129"/>
+        <source>Scroll down one line</source>
+        <translation>Scroll down one line</translation>
+    </message>
+
     <message>
         <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
         <source>Select text</source>

diff --git a/translations/deepin-reader_ar.ts b/translations/deepin-reader_ar.ts
@@ -9,7 +9,7 @@
     <message>
         <location filename="../reader/Application.cpp" line="40"/>
         <source>Document Viewer is a tool for reading document files, supporting %1.</source>
-        <translation type="unfinished"/>
+        <translation>Document Viewer is a tool for reading document files, supporting %1.</translation>
     </message>
 </context>
 <context>
@@ -635,6 +635,17 @@
         <source>Rotate right</source>
         <translation>تدوير لليمين</translation>
     </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
+        <source>Scroll up one line</source>
+        <translation>Scroll up one line</translation>
+    </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="129"/>
+        <source>Scroll down one line</source>
+        <translation>Scroll down one line</translation>
+    </message>
+
     <message>
         <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
         <source>Move to the beginning</source>

diff --git a/translations/deepin-reader_ast.ts b/translations/deepin-reader_ast.ts
@@ -635,6 +635,17 @@
         <source>Rotate right</source>
         <translation>الدوران إلى اليمين</translation>
     </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
+        <source>Scroll up one line</source>
+        <translation>Mover una llinia p'arriba</translation>
+    </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="129"/>
+        <source>Scroll down one line</source>
+        <translation>Mover una llinia p'abaxo</translation>
+    </message>
+
     <message>
         <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
         <source>Move to the beginning</source>

diff --git a/translations/deepin-reader_az.ts b/translations/deepin-reader_az.ts
@@ -9,7 +9,7 @@
     <message>
         <location filename="../reader/Application.cpp" line="40"/>
         <source>Document Viewer is a tool for reading document files, supporting %1.</source>
-        <translation type="unfinished"/>
+        <translation>Document Viewer is a tool for reading document files, supporting %1.</translation>
     </message>
 </context>
 <context>
@@ -635,6 +635,17 @@
         <source>Rotate right</source>
         <translation>Sağa döndərin</translation>
     </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
+        <source>Scroll up one line</source>
+        <translation>Scroll up one line</translation>
+    </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="129"/>
+        <source>Scroll down one line</source>
+        <translation>Scroll down one line</translation>
+    </message>
+
     <message>
         <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
         <source>Move to the beginning</source>

diff --git a/translations/deepin-reader_bg.ts b/translations/deepin-reader_bg.ts
@@ -618,6 +618,17 @@
         <source>Move to the end</source>
         <translation>Преместете към края</translation>
     </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
+        <source>Scroll up one line</source>
+        <translation>Scroll up one line</translation>
+    </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="129"/>
+        <source>Scroll down one line</source>
+        <translation>Scroll down one line</translation>
+    </message>
+
     <message>
         <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
         <source>Select text</source>

diff --git a/translations/deepin-reader_bn.ts b/translations/deepin-reader_bn.ts
@@ -9,7 +9,7 @@
     <message>
         <location filename="../reader/Application.cpp" line="40"/>
         <source>Document Viewer is a tool for reading document files, supporting %1.</source>
-        <translation type="unfinished"/>
+        <translation>Document Viewer is a tool for reading document files, supporting %1.</translation>
     </message>
 </context>
 <context>
@@ -636,6 +636,17 @@
         <source>Rotate right</source>
         <translation>ডানে ঘুরান</translation>
     </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
+        <source>Scroll up one line</source>
+        <translation>Scroll up one line</translation>
+    </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="129"/>
+        <source>Scroll down one line</source>
+        <translation>Scroll down one line</translation>
+    </message>
+
     <message>
         <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
         <source>Move to the beginning</source>

diff --git a/translations/deepin-reader_bo.ts b/translations/deepin-reader_bo.ts
@@ -635,6 +635,17 @@
         <source>Rotate right</source>
         <translation>གཡས་སུ་སྐོར་བ།</translation>
     </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
+        <source>Scroll up one line</source>
+        <translation>གྲལ་ཐིག་གཅིག་གྱེར་འདྲེན་བྱེད།</translation>
+    </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="129"/>
+        <source>Scroll down one line</source>
+        <translation>གྲལ་ཐིག་གཅིག་མར་འདྲེན་བྱེད།</translation>
+    </message>
+
     <message>
         <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
         <source>Move to the beginning</source>

diff --git a/translations/deepin-reader_bqi.ts b/translations/deepin-reader_bqi.ts
@@ -618,6 +618,17 @@
         <source>Move to the end</source>
         <translation>النقل إلى النهاية</translation>
     </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
+        <source>Scroll up one line</source>
+        <translation>Scroll up one line</translation>
+    </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="129"/>
+        <source>Scroll down one line</source>
+        <translation>Scroll down one line</translation>
+    </message>
+
     <message>
         <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
         <source>Select text</source>

diff --git a/translations/deepin-reader_br.ts b/translations/deepin-reader_br.ts
@@ -618,6 +618,17 @@
         <source>Move to the end</source>
         <translation>الانتقال إلى نهاية</translation>
     </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
+        <source>Scroll up one line</source>
+        <translation>Scroll up one line</translation>
+    </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="129"/>
+        <source>Scroll down one line</source>
+        <translation>Scroll down one line</translation>
+    </message>
+
     <message>
         <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
         <source>Select text</source>

diff --git a/translations/deepin-reader_ca.ts b/translations/deepin-reader_ca.ts
@@ -635,6 +635,17 @@
         <source>Rotate right</source>
         <translation>Gira cap a la dreta</translation>
     </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
+        <source>Scroll up one line</source>
+        <translation>Scroll up one line</translation>
+    </message>
+    <message>
+        <location filename="../reader/widgets/ShortCutShow.cpp" line="129"/>
+        <source>Scroll down one line</source>
+        <translation>Scroll down one line</translation>
+    </message>
+
     <message>
         <location filename="../reader/widgets/ShortCutShow.cpp" line="128"/>
         <source>Move to the beginning</source>