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Fix #9726 Revert CenterIn() and CenterOnScreen() 

... back to their previous void returning roles. AlertPosition() is used instead to
check that an alert fits within the sides of the screen and all that.

Also add another CenterOnScreen() method that takes a Screen ID
so you can center a window on another monitor that the one it is currently on
(theoretically someday anyway).
This commit is contained in:
John Scipione 2013-04-30 20:14:33 -04:00
parent d4d842b4ed
commit f3decd2060
2 changed files with 19 additions and 41 deletions
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5
headers/os/interface/Window.h
View File

@ -166,8 +166,9 @@ public:
void ResizeBy(float dx, float dy);
void ResizeTo(float width, float height);
BPoint CenterIn(const BRect& rect);
BPoint CenterOnScreen();
void CenterIn(const BRect& rect);
void CenterOnScreen();
void CenterOnScreen(screen_id id);
virtual void Show();
virtual void Hide();

55
src/kits/interface/Window.cpp
View File

@ -2585,61 +2585,38 @@ BWindow::ResizeTo(float width, float height)
/*!
\brief Center the window in the passed in rectangular area.
\brief Center the window in the passed in \a rect.
\param rect The rectangle to center the window in.
\return The new window position.
*/
BPoint
void
BWindow::CenterIn(const BRect& rect)
{
// Set size limits now if needed
UpdateSizeLimits();
BPoint point = BLayoutUtils::AlignInFrame(rect, Size(),
MoveTo(BLayoutUtils::AlignInFrame(rect, Size(),
BAlignment(B_ALIGN_HORIZONTAL_CENTER,
B_ALIGN_VERTICAL_CENTER)).LeftTop();
BRect screenFrame = (BScreen(this)).Frame();
if (screenFrame == rect) {
// if rect is the screen frame we can skip the ajustments below
MoveTo(point);
return point;
}
float borderWidth;
float tabHeight;
_GetDecoratorSize(&borderWidth, &tabHeight);
// clip the x position within the horizontal edges of the screen
if (point.x < screenFrame.left + borderWidth)
point.x = screenFrame.left + borderWidth;
else if (point.x + Frame().Width() > screenFrame.right - borderWidth)
point.x = screenFrame.right - borderWidth - Frame().Width();
// If the window is covering the window tab lower it down
if (point.y < rect.LeftTop().y + borderWidth)
point.y = rect.LeftTop().y + borderWidth;
// clip the y position within the vertical edges of the screen
if (point.y < screenFrame.top + borderWidth)
point.y = screenFrame.top + borderWidth;
else if (point.y + Frame().Height() > screenFrame.bottom - borderWidth)
point.y = screenFrame.bottom - borderWidth - Frame().Height();
MoveTo(point);
return point;
B_ALIGN_VERTICAL_CENTER)).LeftTop());
}
/*!
\brief Centers the window on the screen the window is currently on.
\return The new window position.
*/
BPoint
void
BWindow::CenterOnScreen()
{
BScreen screen(this);
return CenterIn(screen.Frame());
CenterIn(BScreen(this).Frame());
}
/*!
\brief Centers the window on the screen with the passed in \a id.
*/
void
BWindow::CenterOnScreen(screen_id id)
{
CenterIn(BScreen(id).Frame());
}