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Last handle rotation fix (hopefully).

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Now the handles are drawn where you'd expect on a rotated applet, and rotating an already rotated applet starts where it was when you clicked on the rotate button, rather than jumping back to "not rotated" and moving from there.


svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=758496
This commit is contained in:
Alex Merry 2008-01-08 01:22:44 +00:00
parent 553bbefd19
commit d01c48e722
2 changed files with 25 additions and 10 deletions
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33
applethandle.cpp
View File

@ -53,6 +53,7 @@ AppletHandle::AppletHandle(Containment *parent, Applet *applet)
m_anim(FadeIn),
m_animId(0),
m_angle(0.0),
m_tempAngle(0.0),
m_scaleWidth(1.0),
m_scaleHeight(1.0)
{
@ -67,12 +68,23 @@ AppletHandle::AppletHandle(Containment *parent, Applet *applet)
qreal cosine = originalMatrix.m11();
qreal sine = originalMatrix.m12();
m_originalAngle = _k_angleForPoints(QPointF(0, 0),
QPointF(1, 0),
QPointF(cosine, sine));
m_angle = _k_angleForPoints(QPointF(0, 0),
QPointF(1, 0),
QPointF(cosine, sine));
m_applet->resetTransform();
calculateSize();
m_applet->setParentItem(this);
rect = QRectF(m_applet->pos(), m_applet->size());
center = rect.center();
QTransform matrix;
matrix.translate(center.x(), center.y());
matrix.rotateRadians(m_angle);
matrix.translate(-center.x(), -center.y());
setTransform(matrix);
connect(m_applet, SIGNAL(destroyed(QObject*)), this, SLOT(appletDestroyed()));
setAcceptsHoverEvents(true);
startFading(FadeIn);
@ -89,7 +101,7 @@ AppletHandle::~AppletHandle()
QTransform matrix;
matrix.translate(center.x(), center.y());
matrix.rotateRadians(m_originalAngle+m_angle);
matrix.rotateRadians(m_angle);
matrix.translate(-center.x(), -center.y());
m_applet->setTransform(matrix);
@ -244,9 +256,12 @@ void AppletHandle::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
QRectF rect = QRectF(m_applet->pos(), m_applet->size());
QPointF center = rect.center();
m_angle += m_tempAngle;
m_tempAngle = 0;
QTransform matrix;
matrix.translate(center.x(), center.y());
matrix.rotateRadians(m_originalAngle+m_angle);
matrix.rotateRadians(m_angle);
matrix.translate(-center.x(), -center.y());
setTransform(matrix);
@ -344,10 +359,10 @@ void AppletHandle::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
QPointF center = rect.center();
if (m_pressedButton == RotateButton) {
m_angle = _k_angleForPoints(center, pressPos, event->pos());
m_tempAngle = _k_angleForPoints(center, pressPos, event->pos());
if (fabs(remainder(m_originalAngle+m_angle, snapAngle)) < 0.15) {
m_angle = m_angle - remainder(m_originalAngle+m_angle, snapAngle);
if (fabs(remainder(m_angle+m_tempAngle, snapAngle)) < 0.15) {
m_tempAngle = m_tempAngle - remainder(m_angle+m_tempAngle, snapAngle);
}
m_scaleWidth = m_scaleHeight = 1.0;
@ -416,7 +431,7 @@ void AppletHandle::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
QTransform matrix;
matrix.translate(center.x(), center.y());
matrix.rotateRadians(m_angle);
matrix.rotateRadians(m_angle+m_tempAngle);
matrix.scale(m_scaleWidth, m_scaleHeight);
matrix.translate(-center.x(), -center.y());
setTransform(matrix);

2
applethandle_p.h
View File

@ -81,9 +81,9 @@ class AppletHandle : public QObject, public QGraphicsItem
FadeType m_anim;
Phase::AnimId m_animId;
qreal m_angle;
qreal m_tempAngle;
qreal m_scaleWidth;
qreal m_scaleHeight;
qreal m_originalAngle;
QColor m_gradientColor;
};