Added Word template for formatting wxWindows manual

[wxWidgets.git] / docs / latex / wx / mouseevt.tex

diff --git a/docs/latex/wx/mouseevt.tex b/docs/latex/wx/mouseevt.tex
index f8d03b988f3caab4a258c7bbfa8e1b113d756ab9..423811a297d65b1094248c72d7ca3bb8cc331f65 100644 (file)
--- a/docs/latex/wx/mouseevt.tex
+++ b/docs/latex/wx/mouseevt.tex
@@ -1,12 +1,36 @@
 \section{\class{wxMouseEvent}}\label{wxmouseevent}
 
 \section{\class{wxMouseEvent}}\label{wxmouseevent}
 

-This event class contains information about mouse events, particularly
-events received by canvases. See \helpref{wxWindow::OnMouseEvent}{wxwindowonmouseevent}.
+This event class contains information about mouse events.
+See \helpref{wxWindow::OnMouseEvent}{wxwindowonmouseevent}.
+
+{\bf NB: } Note that under Windows mouse enter and leave events are not natively supported
+by the system but are generated by wxWindows itself. This has several
+drawbacks: the LEAVE\_WINDOW event might be received some time after the mouse
+left the window and the state variables for it may have changed during this
+time.
+
+{\bf NB: } Note the difference between methods like 
+\helpref{LeftDown}{wxmouseeventleftdown} and 
+\helpref{LeftIsDown}{wxmouseeventleftisdown}: the formet returns {\tt TRUE}
+when the event corresponds to the left mouse button click while the latter
+returns {\tt TRUE} if the left mouse button is currently being pressed. For
+example, when the user is dragging the mouse you can use 
+\helpref{LeftIsDown}{wxmouseeventleftisdown} to test
+whether the left mouse button is (still) depressed. Also, by convention, if
+\helpref{LeftDown}{wxmouseeventleftdown} returns {\tt TRUE}, 
+\helpref{LeftIsDown}{wxmouseeventleftisdown} will also return {\tt TRUE} in
+wxWindows whatever the underlying GUI behaviour is (which is
+platform-dependent). The same applies, of course, to other mouse buttons as
+well.

 
 \wxheading{Derived from}
 
 \helpref{wxEvent}{wxevent}
 
 
 \wxheading{Derived from}
 
 \helpref{wxEvent}{wxevent}
 

+\wxheading{Include files}
+
+<wx/event.h>
+

 \wxheading{Event table macros}
 
 To process a mouse event, use these event handler macros to direct input to member
 \wxheading{Event table macros}
 
 To process a mouse event, use these event handler macros to direct input to member


@@ -26,6 +50,7 @@ functions that take a wxMouseEvent argument.
 \twocolitem{{\bf EVT\_MOTION(func)}}{Process a wxEVT\_MOTION event.}
 \twocolitem{{\bf EVT\_ENTER\_WINDOW(func)}}{Process a wxEVT\_ENTER\_WINDOW event.}
 \twocolitem{{\bf EVT\_LEAVE\_WINDOW(func)}}{Process a wxEVT\_LEAVE\_WINDOW event.}
 \twocolitem{{\bf EVT\_MOTION(func)}}{Process a wxEVT\_MOTION event.}
 \twocolitem{{\bf EVT\_ENTER\_WINDOW(func)}}{Process a wxEVT\_ENTER\_WINDOW event.}
 \twocolitem{{\bf EVT\_LEAVE\_WINDOW(func)}}{Process a wxEVT\_LEAVE\_WINDOW event.}

+\twocolitem{{\bf EVT\_MOUSE\_EVENTS(func)}}{Process all mouse events.}

 \end{twocollist}%
 
 \latexignore{\rtfignore{\wxheading{Members}}}
 \end{twocollist}%
 
 \latexignore{\rtfignore{\wxheading{Members}}}


@@ -80,13 +105,13 @@ TRUE if shift is pressed down.
 
 \membersection{wxMouseEvent::m\_x}
 
 
 \membersection{wxMouseEvent::m\_x}
 

-\member{float}{m\_x}
+\member{long}{m\_x}

 
 X-coordinate of the event.
 
 \membersection{wxMouseEvent::m\_y}
 
 
 X-coordinate of the event.
 
 \membersection{wxMouseEvent::m\_y}
 

-\member{float}{m\_y}
+\member{long}{m\_y}

 
 Y-coordinate of the event.
 
 
 Y-coordinate of the event.
 


@@ -169,159 +194,154 @@ Returns TRUE if this was a dragging event (motion while a button is depressed).
 
 \func{bool}{Entering}{\void}
 
 
 \func{bool}{Entering}{\void}
 

-Returns TRUE if the mouse was entering the canvas (MS Windows and Motif).
+Returns TRUE if the mouse was entering the window.

 
 See also \helpref{wxMouseEvent::Leaving}{wxmouseeventleaving}.
 
 
 See also \helpref{wxMouseEvent::Leaving}{wxmouseeventleaving}.
 

+\membersection{wxMouseEvent::GetPosition}\label{wxmouseeventgetposition}
+
+\constfunc{wxPoint}{GetPosition}{\void}
+
+\constfunc{void}{GetPosition}{\param{wxCoord*}{ x}, \param{wxCoord*}{ y}}
+
+\constfunc{void}{GetPosition}{\param{long*}{ x}, \param{long*}{ y}}
+
+Sets *x and *y to the position at which the event occurred.
+
+Returns the physical mouse position in pixels.
+
+\membersection{wxMouseEvent::GetLogicalPosition}\label{wxmouseeventgetlogicalposition}
+
+\constfunc{wxPoint}{GetLogicalPosition}{\param{const wxDC\&}{ dc}}
+
+Returns the logical mouse position in pixels (i.e. translated according to the
+translation set for the DC, which usually indicates that the window has been scrolled).
+

 \membersection{wxMouseEvent::GetX}\label{wxmouseeventgetx}
 
 \membersection{wxMouseEvent::GetX}\label{wxmouseeventgetx}
 

-\func{float}{GetX}{\void}
+\constfunc{long}{GetX}{\void}

 
 

-Returns X coordinate of the mouse event position.
+Returns X coordinate of the physical mouse event position.

 
 \membersection{wxMouseEvent::GetY}\label{wxmouseeventgety}
 
 
 \membersection{wxMouseEvent::GetY}\label{wxmouseeventgety}
 

-\func{float}{GetY}{\void}
+\func{long}{GetY}{\void}

 
 

-Returns Y coordinate of the mouse event position.
+Returns Y coordinate of the physical mouse event position.

 
 \membersection{wxMouseEvent::IsButton}
 
 
 \membersection{wxMouseEvent::IsButton}
 

-\func{bool}{IsButton}{\void}
+\constfunc{bool}{IsButton}{\void}

 
 Returns TRUE if the event was a mouse button event (not necessarily a button down event -
 that may be tested using {\it ButtonDown}).
 
 \membersection{wxMouseEvent::Leaving}\label{wxmouseeventleaving}
 
 
 Returns TRUE if the event was a mouse button event (not necessarily a button down event -
 that may be tested using {\it ButtonDown}).
 
 \membersection{wxMouseEvent::Leaving}\label{wxmouseeventleaving}
 

-\func{bool}{Leaving}{\void}
+\constfunc{bool}{Leaving}{\void}

 
 

-Returns TRUE if the mouse was leaving the canvas (MS Windows and Motif).
+Returns TRUE if the mouse was leaving the window.

 
 See also \helpref{wxMouseEvent::Entering}{wxmouseevententering}.
 
 \membersection{wxMouseEvent::LeftDClick}
 
 
 See also \helpref{wxMouseEvent::Entering}{wxmouseevententering}.
 
 \membersection{wxMouseEvent::LeftDClick}
 

-\func{bool}{LeftDClick}{\void}
+\constfunc{bool}{LeftDClick}{\void}

 
 Returns TRUE if the event was a left double click.
 
 
 Returns TRUE if the event was a left double click.
 

-\membersection{wxMouseEvent::LeftDown}
+\membersection{wxMouseEvent::LeftDown}\label{wxmouseeventleftdown}

 
 

-\func{bool}{LeftDown}{\void}
+\constfunc{bool}{LeftDown}{\void}

 
 Returns TRUE if the left mouse button changed to down.
 
 
 Returns TRUE if the left mouse button changed to down.
 

-\membersection{wxMouseEvent::LeftIsDown}
+\membersection{wxMouseEvent::LeftIsDown}\label{wxmouseeventleftisdown}

 
 

-\func{bool}{LeftIsDown}{\void}
+\constfunc{bool}{LeftIsDown}{\void}

 
 Returns TRUE if the left mouse button is currently down, independent
 of the current event type.
 
 
 Returns TRUE if the left mouse button is currently down, independent
 of the current event type.
 

+Please notice that it is {\bf not} the same as 
+\helpref{LeftDown}{wxmouseeventleftdown} which returns TRUE if the left mouse
+button was just pressed. Rather, it describes the state of the mouse button
+before the event happened.
+
+This event is usually used in the mouse event handlers which process "move
+mouse" messages to determine whether the user is (still) dragging the mouse.
+

 \membersection{wxMouseEvent::LeftUp}
 
 \membersection{wxMouseEvent::LeftUp}
 

-\func{bool}{LeftUp}{\void}
+\constfunc{bool}{LeftUp}{\void}

 
 Returns TRUE if the left mouse button changed to up.
 
 \membersection{wxMouseEvent::MetaDown}
 
 
 Returns TRUE if the left mouse button changed to up.
 
 \membersection{wxMouseEvent::MetaDown}
 

-\func{bool}{MetaDown}{\void}
+\constfunc{bool}{MetaDown}{\void}

 
 Returns TRUE if the Meta key was down at the time of the event.
 
 \membersection{wxMouseEvent::MiddleDClick}
 
 
 Returns TRUE if the Meta key was down at the time of the event.
 
 \membersection{wxMouseEvent::MiddleDClick}
 

-\func{bool}{MiddleDClick}{\void}
+\constfunc{bool}{MiddleDClick}{\void}

 
 Returns TRUE if the event was a middle double click.
 
 \membersection{wxMouseEvent::MiddleDown}
 
 
 Returns TRUE if the event was a middle double click.
 
 \membersection{wxMouseEvent::MiddleDown}
 

-\func{bool}{MiddleDown}{\void}
+\constfunc{bool}{MiddleDown}{\void}

 
 Returns TRUE if the middle mouse button changed to down.
 
 
 Returns TRUE if the middle mouse button changed to down.
 

-\membersection{wxMouseEvent::MiddleIsDown}
+\membersection{wxMouseEvent::MiddleIsDown}\label{wxmouseeventmiddleisdown}

 
 

-\func{bool}{MiddleIsDown}{\void}
+\constfunc{bool}{MiddleIsDown}{\void}

 
 Returns TRUE if the middle mouse button is currently down, independent
 of the current event type.
 
 \membersection{wxMouseEvent::MiddleUp}
 
 
 Returns TRUE if the middle mouse button is currently down, independent
 of the current event type.
 
 \membersection{wxMouseEvent::MiddleUp}
 

-\func{bool}{MiddleUp}{\void}
+\constfunc{bool}{MiddleUp}{\void}

 
 Returns TRUE if the middle mouse button changed to up.
 
 \membersection{wxMouseEvent::Moving}
 
 
 Returns TRUE if the middle mouse button changed to up.
 
 \membersection{wxMouseEvent::Moving}
 

-\func{bool}{Moving}{\void}
+\constfunc{bool}{Moving}{\void}

 
 Returns TRUE if this was a motion event (no buttons depressed).
 
 
 Returns TRUE if this was a motion event (no buttons depressed).
 

-\membersection{wxMouseEvent::Position}
-
-\func{void}{Position}{\param{float *}{x}, \param{float *}{y}}
-
-Sets *x and *y to the position at which the event occurred. If the
-window is a canvas, the position is converted to logical units
-(according to the current mapping mode) with scrolling taken into
-account. To get back to device units (for example to calculate where on the
-screen to place a dialog box associated with a canvas mouse event), use
-\rtfsp{\bf wxDC::LogicalToDeviceX} and {\bf wxDC::LogicalToDeviceY}.
-
-For example, the following code calculates screen pixel coordinates
-from the frame position, canvas view start (assuming the canvas is the only
-subwindow on the frame and therefore at the top left of it), and the
-logical event position. A menu is popped up at the position where the
-mouse click occurred. (Note that the application should also check that
-the dialog box will be visible on the screen, since the click could have
-occurred near the screen edge!)
-
-\begin{verbatim}
-  float event_x, event_y;
-  event.Position(&event_x, &event_y);
-  frame->GetPosition(&x, &y);
-  canvas->ViewStart(&x1, &y1);
-  int mouse_x = (int)(canvas->GetDC()->LogicalToDeviceX(event_x + x - x1);
-  int mouse_y = (int)(canvas->GetDC()->LogicalToDeviceY(event_y + y - y1);
-
-  char *choice = wxGetSingleChoice("Menu", "Pick a node action",
-                                 no_choices, choices, frame, mouse_x, mouse_y);
-\end{verbatim}
-

 \membersection{wxMouseEvent::RightDClick}
 
 \membersection{wxMouseEvent::RightDClick}
 

-\func{bool}{RightDClick}{\void}
+\constfunc{bool}{RightDClick}{\void}

 
 Returns TRUE if the event was a right double click.
 
 \membersection{wxMouseEvent::RightDown}
 
 
 Returns TRUE if the event was a right double click.
 
 \membersection{wxMouseEvent::RightDown}
 

-\func{bool}{RightDown}{\void}
+\constfunc{bool}{RightDown}{\void}

 
 Returns TRUE if the right mouse button changed to down.
 
 
 Returns TRUE if the right mouse button changed to down.
 

-\membersection{wxMouseEvent::RightIsDown}
+\membersection{wxMouseEvent::RightIsDown}\label{wxmouseeventrightisdown}

 
 

-\func{bool}{RightIsDown}{\void}
+\constfunc{bool}{RightIsDown}{\void}

 
 Returns TRUE if the right mouse button is currently down, independent
 of the current event type.
 
 \membersection{wxMouseEvent::RightUp}
 
 
 Returns TRUE if the right mouse button is currently down, independent
 of the current event type.
 
 \membersection{wxMouseEvent::RightUp}
 

-\func{bool}{RightUp}{\void}
+\constfunc{bool}{RightUp}{\void}

 
 Returns TRUE if the right mouse button changed to up.
 
 
 Returns TRUE if the right mouse button changed to up.
 

-

 \membersection{wxMouseEvent::ShiftDown}
 
 \membersection{wxMouseEvent::ShiftDown}
 

-\func{bool}{ShiftDown}{\void}
+\constfunc{bool}{ShiftDown}{\void}

 
 Returns TRUE if the shift key was down at the time of the event.
 
 
 Returns TRUE if the shift key was down at the time of the event.