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Diffstat (limited to 'examples/opengl/overlay_x11/README')
| -rw-r--r-- | examples/opengl/overlay_x11/README | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/examples/opengl/overlay_x11/README b/examples/opengl/overlay_x11/README index eba728e67..03dda2e83 100644 --- a/examples/opengl/overlay_x11/README +++ b/examples/opengl/overlay_x11/README @@ -1,13 +1,13 @@ ----------------------------------------------------------------------- -UPDATE: From version 5.0 onwards, the Qt OpenGL Extension includes +UPDATE: From version 5.0 onwards, the TQt OpenGL Extension includes direct support for use of OpenGL overlays. For many uses of overlays, this makes the technique described below redundant. See the 'overlay' example program. The following is a discussion on how to use non-QGL widgets in overlay planes. ----------------------------------------------------------------------- -Overlayrubber: An example program showing how to use Qt and Qt OpenGL +Overlayrubber: An example program showing how to use TQt and TQt OpenGL Extension with X11 overlay visuals. (Background information for this example can be found in the file @@ -21,7 +21,7 @@ itself. Thus, you can eaily confirm that drawing in the overlay plane does not cause redrawings in the main plane where the QGLWidget resides. -RubberbandWidget: Very simple standard (non-GL) Qt widget that +RubberbandWidget: Very simple standard (non-GL) TQt widget that implements rubberband drawing. Designed for use in an overlay plane. It takes the planes' transparent color as a constructor argument and uses that for its background color. Thus, the widget @@ -50,7 +50,7 @@ For clarity, this example program has been kept very simple. Here are some hints for real application use: All normal widgets can go in the overlay plane: This means that you -can put all kinds of Qt widgets (your own or those provided with Qt) +can put all kinds of TQt widgets (your own or those provided with Qt) on top of the OpenGL image (widget), e.g. pushbuttons etc., and they can be moved, resized, or removed without destroying the OpenGL image. @@ -67,7 +67,7 @@ two widgets' geometries synchronized. Using with QPalette and QColorGroup: Instead of the somewhat simplistic setBackgroundColor( transparentColor ), you can use Qt's QPalette system for having your overlay widgets use transparent color -for what you want. This way, the normal Qt widgets can be used as +for what you want. This way, the normal TQt widgets can be used as overlays for fancy effects: just create a palette for them with the transparent color for the wanted color roles, e.g. Background and Base, in the Normal and/or Active modes. This way, you can create |