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* implement conversion of absolute mouse coordinates (0..1) in device

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messages to normal screen coordinates



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21274 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stephan Aßmus 2007-05-29 20:21:33 +00:00
parent 9249ebc02b
commit 7ce678aa5f
1 changed files with 16 additions and 0 deletions
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16
src/servers/input/InputServer.cpp
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@ -1434,6 +1434,7 @@ InputServer::_SanitizeEvents(EventList& events)
{
BPoint where;
int32 x, y;
float absX, absY;
if (event->FindInt32("x", &x) == B_OK
&& event->FindInt32("y", &y) == B_OK) {
@ -1447,6 +1448,21 @@ InputServer::_SanitizeEvents(EventList& events)
PRINT(("new position: %f, %f, %ld, %ld\n",
fMousePos.x, fMousePos.y, x, y));
} else if (event->FindFloat("x", &absX) == B_OK
&& event->FindFloat("y", &absY) == B_OK) {
// device gives us absolute screen coords
// in range 0..1
// convert to absolute screen pos
// (the message is supposed to contain the original
// absolute coordinates as "be:tablet_x/y")
fMousePos.x = absX * fFrame.Width();
fMousePos.y = absY * fFrame.Height();
fMousePos.ConstrainTo(fFrame);
event->RemoveName("x");
event->RemoveName("y");
event->AddPoint("where", fMousePos);
PRINT(("new position : %f, %f\n", fMousePos.x, fMousePos.y));
} else if (event->FindPoint("where", &where) == B_OK) {
fMousePos = where;
fMousePos.ConstrainTo(fFrame);