X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/87815d3d0a59968543980ec415889333c08f6519..af86380553169606c985e0053a1630e9514e18b6:/src/univ/listbox.cpp

diff --git a/src/univ/listbox.cpp b/src/univ/listbox.cpp
index 45e5f77e87..a2697e5b41 100644
--- a/src/univ/listbox.cpp
+++ b/src/univ/listbox.cpp
@@ -37,6 +37,62 @@
 #include "wx/univ/inphand.h"
 #include "wx/univ/theme.h"
 
+// ----------------------------------------------------------------------------
+// wxStdListboxInputHandler: handles mouse and kbd in a single or multi
+// selection listbox
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxStdListboxInputHandler : public wxStdInputHandler
+{
+public:
+    // if pressing the mouse button in a multiselection listbox should toggle
+    // the item under mouse immediately, then specify true as the second
+    // parameter (this is the standard behaviour, under GTK the item is toggled
+    // only when the mouse is released in the multi selection listbox)
+    wxStdListboxInputHandler(wxInputHandler *inphand,
+                             bool toggleOnPressAlways = true);
+
+    // base class methods
+    virtual bool HandleKey(wxInputConsumer *consumer,
+                           const wxKeyEvent& event,
+                           bool pressed);
+    virtual bool HandleMouse(wxInputConsumer *consumer,
+                             const wxMouseEvent& event);
+    virtual bool HandleMouseMove(wxInputConsumer *consumer,
+                                 const wxMouseEvent& event);
+
+protected:
+    // return the item under mouse, 0 if the mouse is above the listbox or
+    // GetCount() if it is below it
+    int HitTest(const wxListBox *listbox, const wxMouseEvent& event);
+
+    // parts of HitTest(): first finds the pseudo (because not in range) index
+    // of the item and the second one adjusts it if necessary - that is if the
+    // third one returns false
+    int HitTestUnsafe(const wxListBox *listbox, const wxMouseEvent& event);
+    int FixItemIndex(const wxListBox *listbox, int item);
+    bool IsValidIndex(const wxListBox *listbox, int item);
+
+    // init m_btnCapture and m_actionMouse
+    wxControlAction SetupCapture(wxListBox *lbox,
+                                 const wxMouseEvent& event,
+                                 int item);
+
+    wxRenderer *m_renderer;
+
+    // the button which initiated the mouse capture (currently 0 or 1)
+    int m_btnCapture;
+
+    // the action to perform when the mouse moves while we capture it
+    wxControlAction m_actionMouse;
+
+    // the ctor parameter toggleOnPressAlways (see comments near it)
+    bool m_toggleOnPressAlways;
+
+    // do we track the mouse outside the window when it is captured?
+    bool m_trackMouseOutside;
+};
+
 // ============================================================================
 // implementation of wxListBox
 // ============================================================================
@@ -1190,6 +1246,14 @@ bool wxListBox::PerformAction(const wxControlAction& action,
     return true;
 }
 
+/* static */
+wxInputHandler *wxListBox::GetStdInputHandler(wxInputHandler *handlerDef)
+{
+    static wxStdListboxInputHandler s_handler(handlerDef);
+
+    return &s_handler;
+}
+
 // ============================================================================
 // implementation of wxStdListboxInputHandler
 // ============================================================================