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framelesshelper
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Minor tweaks. 

Signed-off-by: Yuhang Zhao <2546789017@qq.com>
This commit is contained in:
Yuhang Zhao 2020-11-09 20:22:31 +08:00
parent 1bf0d59efa
commit f597b64f46
1 changed files with 19 additions and 36 deletions
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55
framelesshelper.cpp
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@ -319,7 +319,8 @@ bool FramelessHelper::eventFilter(QObject *object, QEvent *event)
{
Q_ASSERT(object);
Q_ASSERT(event);
QPointF m_pCurMousePos = {};
static bool m_bIsMRBPressed = false;
static QPointF m_pOldMousePos = {};
const auto isWindowTopLevel = [](QObject *window) -> bool {
Q_ASSERT(window);
if (window->isWindowType()) {
@ -406,7 +407,11 @@ bool FramelessHelper::eventFilter(QObject *object, QEvent *event)
#ifdef QT_WIDGETS_LIB
const auto widget = qobject_cast<QWidget *>(obj);
if (widget) {
const QPoint pos = widget->mapToGlobal({0, 0});
#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
const QPointF pos = widget->mapToGlobal(QPointF{0, 0});
#else
const QPoint pos = widget->mapToGlobal(QPoint{0, 0});
#endif
if (QRect(pos.x(), pos.y(), widget->width(), widget->height()).contains(x, y)) {
return true;
}
@ -487,52 +492,25 @@ bool FramelessHelper::eventFilter(QObject *object, QEvent *event)
return false;
};
const auto moveOrResize =
[this,
&getWindowEdges,
&isResizePermitted,
&isInTitlebarArea,
&m_pCurMousePos](const QPointF &globalPoint, const QPointF &point, QObject *object) {
[this, &getWindowEdges, &isResizePermitted, &isInTitlebarArea](const QPointF &globalPoint,
const QPointF &point,
QObject *object) {
Q_ASSERT(object);
QWindow *window = getWindowHandle(object);
if (window) {
const int deltaX = m_pCurMousePos.x() - globalPoint.x();
const int deltaY = m_pCurMousePos.y() - globalPoint.y();
const QPointF deltaPoint = globalPoint - m_pOldMousePos;
const Qt::Edges edges = getWindowEdges(point, window->width(), window->height());
if (edges == Qt::Edges{}) {
if (isInTitlebarArea(globalPoint, point, object)) {
if (!window->startSystemMove()) {
// Fallback to the traditional way.
window->setX(window->x() + deltaX);
window->setY(window->y() + deltaY);
// ### FIXME: TO BE IMPLEMENTED!
}
}
} else {
if (window->windowStates().testFlag(Qt::WindowState::WindowNoState)
&& isResizePermitted(globalPoint, point, object) && getResizable(object)) {
if (!window->startSystemResize(edges)) {
// Fallback to the traditional way.
bool leftHandled = false, topHandled = false;
int newX = window->x();
int newY = window->y();
int newWidth = window->width();
int newHeight = window->height();
if (edges.testFlag(Qt::Edge::LeftEdge)) {
newX += deltaX;
newWidth -= deltaX;
leftHandled = true;
}
if (edges.testFlag(Qt::Edge::TopEdge)) {
newY += deltaY;
newHeight -= deltaY;
topHandled = true;
}
if (!leftHandled) {
newWidth += deltaX;
}
if (!topHandled) {
newHeight += deltaY;
}
window->setGeometry(newX, newY, newWidth, newHeight);
// ### FIXME: TO BE IMPLEMENTED!
}
}
}
@ -595,13 +573,14 @@ bool FramelessHelper::eventFilter(QObject *object, QEvent *event)
if (mouseEvent->button() != Qt::MouseButton::LeftButton) {
break;
}
m_bIsMRBPressed = true;
m_pOldMousePos = mouseEvent->screenPos();
moveOrResize(mouseEvent->screenPos(), mouseEvent->windowPos(), object);
}
} break;
case QEvent::MouseMove: {
const auto mouseEvent = static_cast<QMouseEvent *>(event);
if (mouseEvent) {
m_pCurMousePos = mouseEvent->screenPos();
QWindow *window = getWindowHandle(object);
if (window) {
if (window->windowStates().testFlag(Qt::WindowState::WindowNoState)
@ -625,6 +604,10 @@ bool FramelessHelper::eventFilter(QObject *object, QEvent *event)
#endif
}
} break;
case QEvent::MouseButtonRelease: {
m_bIsMRBPressed = false;
m_pOldMousePos = {};
} break;
case QEvent::TouchBegin:
case QEvent::TouchUpdate: {
const auto point = static_cast<QTouchEvent *>(event)->touchPoints().first();