+/**
+ Helper class that implements part of mouse handling for wxHtmlWindow and
+ wxHtmlListBox. Cursor changes and clicking on links are handled, text
+ selection is not.
+ */
+class WXDLLIMPEXP_HTML wxHtmlWindowMouseHelper
+{
+protected:
+ /**
+ Ctor.
+
+ @param iface Interface to the owner window.
+ */
+ wxHtmlWindowMouseHelper(wxHtmlWindowInterface *iface);
+
+ /**
+ Virtual dtor.
+
+ It is not really needed in this case but at leats it prevents gcc from
+ complaining about its absence.
+ */
+ virtual ~wxHtmlWindowMouseHelper() { }
+
+ /// Returns true if the mouse moved since the last call to HandleIdle
+ bool DidMouseMove() const { return m_tmpMouseMoved; }
+
+ /// Call this from EVT_MOTION event handler
+ void HandleMouseMoved();
+
+ /**
+ Call this from EVT_LEFT_UP handler (or, alternatively, EVT_LEFT_DOWN).
+
+ @param rootCell HTML cell inside which the click occured. This doesn't
+ have to be the leaf cell, it can be e.g. toplevel
+ container, but the mouse must be inside the container's
+ area, otherwise the event would be ignored.
+ @param pos Mouse position in coordinates relative to @a cell
+ @param event The event that triggered the call
+ */
+ bool HandleMouseClick(wxHtmlCell *rootCell,
+ const wxPoint& pos, const wxMouseEvent& event);
+
+ /**
+ Call this from OnInternalIdle of the HTML displaying window. Handles
+ mouse movements and must be used together with HandleMouseMoved.
+
+ @param rootCell HTML cell inside which the click occured. This doesn't
+ have to be the leaf cell, it can be e.g. toplevel
+ container, but the mouse must be inside the container's
+ area, otherwise the event would be ignored.
+ @param pos Current mouse position in coordinates relative to
+ @a cell
+ */
+ void HandleIdle(wxHtmlCell *rootCell, const wxPoint& pos);
+
+ /**
+ Called by HandleIdle when the mouse hovers over a cell. Default
+ behaviour is to do nothing.
+
+ @param cell the cell the mouse is over
+ @param x, y coordinates of mouse relative to the cell
+ */
+ virtual void OnCellMouseHover(wxHtmlCell *cell, wxCoord x, wxCoord y);
+
+ /**
+ Called by HandleMouseClick when the user clicks on a cell.
+ Default behavior is to call wxHtmlWindowInterface::OnLinkClicked()
+ if this cell corresponds to a hypertext link.
+
+ @param cell the cell the mouse is over
+ @param x, y coordinates of mouse relative to the cell
+ @param event The event that triggered the call
+
+
+ @return true if a link was clicked, false otherwise.
+ */
+ virtual bool OnCellClicked(wxHtmlCell *cell,
+ wxCoord x, wxCoord y,
+ const wxMouseEvent& event);
+
+protected:
+ // this flag indicates if the mouse moved (used by HandleIdle)
+ bool m_tmpMouseMoved;
+ // contains last link name
+ wxHtmlLinkInfo *m_tmpLastLink;
+ // contains the last (terminal) cell which contained the mouse
+ wxHtmlCell *m_tmpLastCell;
projects / wxWidgets.git / blobdiff