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254 lines
9.7 KiB
ReStructuredText
254 lines
9.7 KiB
ReStructuredText
:github_url: hide
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.. _class_ScrollBar:
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ScrollBar
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=========
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**繼承：** :ref:`Range<class_Range>` **<** :ref:`Control<class_Control>` **<** :ref:`CanvasItem<class_CanvasItem>` **<** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`
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**被繼承：** :ref:`HScrollBar<class_HScrollBar>`, :ref:`VScrollBar<class_VScrollBar>`
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捲軸的抽象基底類別。
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.. rst-class:: classref-introduction-group
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說明
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----
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捲軸的抽象基底類別，通常用於對超出控制項可視區域的內容進行導覽。捲軸是基於 :ref:`Range<class_Range>` 的控制項。
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.. rst-class:: classref-reftable-group
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屬性
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----
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.. table::
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:widths: auto
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+------------------------------------------+----------------------------------------------------------+---------------------------------------------------------------------+
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| :ref:`float<class_float>` | :ref:`custom_step<class_ScrollBar_property_custom_step>` | ``-1.0`` |
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+------------------------------------------+----------------------------------------------------------+---------------------------------------------------------------------+
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| :ref:`FocusMode<enum_Control_FocusMode>` | focus_mode | ``3`` (overrides :ref:`Control<class_Control_property_focus_mode>`) |
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+------------------------------------------+----------------------------------------------------------+---------------------------------------------------------------------+
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| :ref:`float<class_float>` | step | ``0.0`` (overrides :ref:`Range<class_Range_property_step>`) |
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+------------------------------------------+----------------------------------------------------------+---------------------------------------------------------------------+
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.. rst-class:: classref-reftable-group
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主題屬性
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--------
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.. table::
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:widths: auto
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+-----------------------------------+----------------------------------------------------------------------------+
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| :ref:`Texture2D<class_Texture2D>` | :ref:`decrement<class_ScrollBar_theme_icon_decrement>` |
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+-----------------------------------+----------------------------------------------------------------------------+
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| :ref:`Texture2D<class_Texture2D>` | :ref:`decrement_highlight<class_ScrollBar_theme_icon_decrement_highlight>` |
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+-----------------------------------+----------------------------------------------------------------------------+
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| :ref:`Texture2D<class_Texture2D>` | :ref:`decrement_pressed<class_ScrollBar_theme_icon_decrement_pressed>` |
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+-----------------------------------+----------------------------------------------------------------------------+
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| :ref:`Texture2D<class_Texture2D>` | :ref:`increment<class_ScrollBar_theme_icon_increment>` |
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+-----------------------------------+----------------------------------------------------------------------------+
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| :ref:`Texture2D<class_Texture2D>` | :ref:`increment_highlight<class_ScrollBar_theme_icon_increment_highlight>` |
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+-----------------------------------+----------------------------------------------------------------------------+
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| :ref:`Texture2D<class_Texture2D>` | :ref:`increment_pressed<class_ScrollBar_theme_icon_increment_pressed>` |
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+-----------------------------------+----------------------------------------------------------------------------+
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| :ref:`StyleBox<class_StyleBox>` | :ref:`grabber<class_ScrollBar_theme_style_grabber>` |
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+-----------------------------------+----------------------------------------------------------------------------+
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| :ref:`StyleBox<class_StyleBox>` | :ref:`grabber_highlight<class_ScrollBar_theme_style_grabber_highlight>` |
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+-----------------------------------+----------------------------------------------------------------------------+
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| :ref:`StyleBox<class_StyleBox>` | :ref:`grabber_pressed<class_ScrollBar_theme_style_grabber_pressed>` |
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+-----------------------------------+----------------------------------------------------------------------------+
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| :ref:`StyleBox<class_StyleBox>` | :ref:`scroll<class_ScrollBar_theme_style_scroll>` |
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+-----------------------------------+----------------------------------------------------------------------------+
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| :ref:`StyleBox<class_StyleBox>` | :ref:`scroll_focus<class_ScrollBar_theme_style_scroll_focus>` |
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+-----------------------------------+----------------------------------------------------------------------------+
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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訊號
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----
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.. _class_ScrollBar_signal_scrolling:
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.. rst-class:: classref-signal
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**scrolling**\ (\ ) :ref:`🔗<class_ScrollBar_signal_scrolling>`
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當捲軸滾動時發出。
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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屬性說明
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--------
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.. _class_ScrollBar_property_custom_step:
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.. rst-class:: classref-property
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:ref:`float<class_float>` **custom_step** = ``-1.0`` :ref:`🔗<class_ScrollBar_property_custom_step>`
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.. rst-class:: classref-property-setget
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- |void| **set_custom_step**\ (\ value\: :ref:`float<class_float>`\ )
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- :ref:`float<class_float>` **get_custom_step**\ (\ )
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覆蓋 在按下增和減按鈕時或在 **ScrollBar** 已獲得焦點且使用方向鍵時 的步長。
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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主題屬性說明
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------------
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.. _class_ScrollBar_theme_icon_decrement:
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.. rst-class:: classref-themeproperty
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:ref:`Texture2D<class_Texture2D>` **decrement** :ref:`🔗<class_ScrollBar_theme_icon_decrement>`
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作為按鈕使用的圖示，它用於使 **ScrollBar** 向左滾動。滾動步長由 :ref:`custom_step<class_ScrollBar_property_custom_step>` 屬性值自訂。
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.. rst-class:: classref-item-separator
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----
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.. _class_ScrollBar_theme_icon_decrement_highlight:
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.. rst-class:: classref-themeproperty
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:ref:`Texture2D<class_Texture2D>` **decrement_highlight** :ref:`🔗<class_ScrollBar_theme_icon_decrement_highlight>`
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當滑鼠指標懸停在遞減按鈕上時顯示。
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.. rst-class:: classref-item-separator
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----
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.. _class_ScrollBar_theme_icon_decrement_pressed:
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.. rst-class:: classref-themeproperty
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:ref:`Texture2D<class_Texture2D>` **decrement_pressed** :ref:`🔗<class_ScrollBar_theme_icon_decrement_pressed>`
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在按下遞減按鈕時顯示。
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.. rst-class:: classref-item-separator
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----
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.. _class_ScrollBar_theme_icon_increment:
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.. rst-class:: classref-themeproperty
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:ref:`Texture2D<class_Texture2D>` **increment** :ref:`🔗<class_ScrollBar_theme_icon_increment>`
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作為按鈕使用的圖示，它用於使 **ScrollBar** 向右滾動。滾動步長由 :ref:`custom_step<class_ScrollBar_property_custom_step>` 屬性值自訂。
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.. rst-class:: classref-item-separator
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----
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.. _class_ScrollBar_theme_icon_increment_highlight:
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.. rst-class:: classref-themeproperty
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:ref:`Texture2D<class_Texture2D>` **increment_highlight** :ref:`🔗<class_ScrollBar_theme_icon_increment_highlight>`
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當滑鼠指標懸停在差異量按鈕上時顯示。
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.. rst-class:: classref-item-separator
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----
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.. _class_ScrollBar_theme_icon_increment_pressed:
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.. rst-class:: classref-themeproperty
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:ref:`Texture2D<class_Texture2D>` **increment_pressed** :ref:`🔗<class_ScrollBar_theme_icon_increment_pressed>`
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在按下差異量按鈕時顯示。
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.. rst-class:: classref-item-separator
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----
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.. _class_ScrollBar_theme_style_grabber:
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.. rst-class:: classref-themeproperty
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:ref:`StyleBox<class_StyleBox>` **grabber** :ref:`🔗<class_ScrollBar_theme_style_grabber>`
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用作拖動條的紋理，表示目前的可拖動元素。
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.. rst-class:: classref-item-separator
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----
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.. _class_ScrollBar_theme_style_grabber_highlight:
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.. rst-class:: classref-themeproperty
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:ref:`StyleBox<class_StyleBox>` **grabber_highlight** :ref:`🔗<class_ScrollBar_theme_style_grabber_highlight>`
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當滑鼠懸停在拖動條上時使用。
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.. rst-class:: classref-item-separator
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----
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.. _class_ScrollBar_theme_style_grabber_pressed:
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.. rst-class:: classref-themeproperty
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:ref:`StyleBox<class_StyleBox>` **grabber_pressed** :ref:`🔗<class_ScrollBar_theme_style_grabber_pressed>`
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在拖動條被拖動時使用。
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.. rst-class:: classref-item-separator
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----
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.. _class_ScrollBar_theme_style_scroll:
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.. rst-class:: classref-themeproperty
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:ref:`StyleBox<class_StyleBox>` **scroll** :ref:`🔗<class_ScrollBar_theme_style_scroll>`
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用作此 **ScrollBar** 的背景。
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.. rst-class:: classref-item-separator
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----
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.. _class_ScrollBar_theme_style_scroll_focus:
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.. rst-class:: classref-themeproperty
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:ref:`StyleBox<class_StyleBox>` **scroll_focus** :ref:`🔗<class_ScrollBar_theme_style_scroll_focus>`
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當 **ScrollBar** 具有 GUI 焦點時用作背景。
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.. |virtual| replace:: :abbr:`virtual (本方法通常需要使用者覆寫才能生效。)`
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.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
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.. |const| replace:: :abbr:`const (本方法沒有副作用。不會修改該實例的任何成員變數。)`
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.. |vararg| replace:: :abbr:`vararg (本方法除了這裡描述的參數外，還可以接受任意數量的參數。)`
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.. |constructor| replace:: :abbr:`constructor (本方法用於建構一個型別。)`
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.. |static| replace:: :abbr:`static (本方法無需實例即可呼叫，因此可以直接使用類別名稱呼叫。)`
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.. |operator| replace:: :abbr:`operator (本方法描述將本型別作為左運算元時可用的有效運算子。)`
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.. |bitfield| replace:: :abbr:`BitField (此值是由下列旗標組成的位元遮罩整數。)`
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.. |void| replace:: :abbr:`void (無回傳值。)`
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