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window-to-window snapping

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This commit is contained in:
Dana Jansens 2002-05-28 11:38:37 +00:00
parent 0bf0d84443
commit 734a96739d
1 changed files with 51 additions and 9 deletions
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60
src/Window.cc
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@ -2526,30 +2526,72 @@ void BlackboxWindow::motionNotifyEvent(XMotionEvent *me) {
const int snap_distance = screen->getEdgeSnapThreshold();
if (snap_distance) {
Rect srect = screen->availableArea();
// window corners
const int wleft = dx,
wright = dx + frame.rect.width() - 1,
wtop = dy,
wbottom = dy + frame.rect.height() - 1;
// Maybe this should be saved in the class, and set in the setWorkspace
// function!!
Workspace *w = screen->getWorkspace(getWorkspaceNumber());
assert(w);
// try snap to another window
for (unsigned int i = 0, c = w->getCount(); i < c; ++i) {
BlackboxWindow *snapwin = w->getWindow(i);
if (snapwin == this)
continue; // don't snap to self
const Rect &winrect = snapwin->frameRect();
int dleft = std::abs(wright - winrect.left()),
dright = std::abs(wleft - winrect.right()),
dtop = std::abs(wbottom - winrect.top()),
dbottom = std::abs(wtop - winrect.bottom());
// snap left?
if (dleft < snap_distance && dleft <= dright) {
dx = winrect.left() - frame.rect.width();
break;
}
// snap right?
else if (dright < snap_distance) {
dx = winrect.right() + 1;
break;
}
// snap top?
if (dtop < snap_distance && dtop <= dbottom) {
dy = winrect.top() - frame.rect.height();
break;
}
// snap bottom?
else if (dbottom < snap_distance) {
dy = winrect.bottom() + 1;
break;
}
}
// try snap to the screen's available area
Rect srect = screen->availableArea();
int dleft = std::abs(wleft - srect.left()),
dright = std::abs(wright - srect.right()),
dtop = std::abs(wtop - srect.top()),
dbottom = std::abs(wbottom - srect.bottom());
// snap left?
if (dleft < snap_distance && dleft < dright)
if (dleft < snap_distance && dleft <= dright)
dx = srect.left();
// snap right?
else if (dright < snap_distance && dright < dleft)
else if (dright < snap_distance)
dx = srect.right() - frame.rect.width() + 1;
// snap top?
if (dtop < snap_distance && dtop < dbottom)
if (dtop < snap_distance && dtop <= dbottom)
dy = srect.top();
// snap bottom?
else if (dbottom < snap_distance && dbottom < dtop)
else if (dbottom < snap_distance)
dy = srect.bottom() - frame.rect.height() + 1;
srect = screen->getRect(); // now get the full screen
@ -2560,17 +2602,17 @@ void BlackboxWindow::motionNotifyEvent(XMotionEvent *me) {
dbottom = std::abs(wbottom - srect.bottom());
// snap left?
if (dleft < snap_distance && dleft < dright)
if (dleft < snap_distance && dleft <= dright)
dx = srect.left();
// snap right?
else if (dright < snap_distance && dright < dleft)
else if (dright < snap_distance)
dx = srect.right() - frame.rect.width() + 1;
// snap top?
if (dtop < snap_distance && dtop < dbottom)
if (dtop < snap_distance && dtop <= dbottom)
dy = srect.top();
// snap bottom?
else if (dbottom < snap_distance && dbottom < dtop)
else if (dbottom < snap_distance)
dy = srect.bottom() - frame.rect.height() + 1;
}