def mousePressEvent(self, event):
"""
Override the behaviour when the mouse is pressed
"""
self._drag_initiated = False
self._drag_dropped_pos = QPoint()
if event.button() == Qt.LeftButton and event.modifiers(
) == Qt.ControlModifier:
self._drag_start_pos = event.pos()
# Get mouse position and store the area rectangle of the selected tab
pos = event.pos()
self._select_tab_index = self.tabAt(pos)
rect = self.tabRect(self._select_tab_index)
# Store a pixmap of the selected tab and a pixmap of the close hand cursor image
# After that we draw the tab and also the hand cursor in the middle of the tab
pixmap = QPixmap.grabWidget(self, rect)
painter = QPainter(pixmap)
cursor_pm = QPixmap(':/icons/close_hand_cursor.png')
cursor_pos = QPoint(*map(lambda x, y: (x - y) * 0.5,
rect.size().toTuple(),
cursor_pm.size().toTuple()))
painter.drawPixmap(cursor_pos, cursor_pm)
painter.end()
# Update cursor
cursor = QCursor(pixmap)
self.setCursor(cursor)
super(TearOffTabBar, self).mousePressEvent(event)
class LightMaps(QWidget):
def __init__(self, parent: QWidget = None) -> None:
super().__init__(parent)
self.m_normalMap = SlippyMap(self)
self.m_largeMap = SlippyMap(self)
self.m_normalMap.updated.connect(self.updateMap)
self.m_largeMap.updated.connect(self.update)
self.pressed = False
self.snapped = False
self.pressPos = QPoint()
self.dragPos = QPoint()
self.tapTimer = QBasicTimer()
self.zoomed = False
self.zoomPixmap = QPixmap()
self.maskPixmap = QPixmap()
self.invert = False
def setCenter(self, lat: float, lng: float):
self.m_normalMap.latitude = lat
self.m_normalMap.longitude = lng
self.m_normalMap.invalidate()
self.m_largeMap.latitude = lat
self.m_largeMap.longitude = lng
self.m_largeMap.invalidate()
@Slot()
def toggleNightMode(self) -> None:
self.invert = not self.invert
self.update()
def activateZoom(self) -> None:
self.zoomed = True
self.tapTimer.stop()
self.m_largeMap.zoom = self.m_normalMap.zoom + 1
self.m_largeMap.width = self.m_normalMap.width * 2
self.m_largeMap.height = self.m_normalMap.height * 2
self.m_largeMap.latitude = self.m_normalMap.latitude
self.m_largeMap.longitude = self.m_normalMap.longitude
self.m_largeMap.invalidate()
self.update()
def resizeEvent(self, event: QResizeEvent) -> None:
self.m_normalMap.width = self.width()
self.m_normalMap.height = self.height()
self.m_normalMap.invalidate()
self.m_largeMap.width = self.m_normalMap.width * 2
self.m_largeMap.height = self.m_normalMap.height * 2
self.m_largeMap.invalidate()
def paintEvent(self, event: QPaintEvent) -> None:
p = QPainter(self)
self.m_normalMap.render(p, event.rect())
p.setPen(Qt.black)
p.drawText(
self.rect(),
Qt.AlignBottom | Qt.TextWordWrap,
"Map data CCBYSA 2009 OpenStreetMap.org contributors",
)
p.end()
if self.zoomed:
dim = min(self.width(), self.height())
magnifierSize = min(MAX_MAGNIFIER, dim * 2 / 3)
radius = magnifierSize / 2
ring = radius - 15
box = QSize(magnifierSize, magnifierSize)
if self.maskPixmap.size() != box:
self.maskPixmap = QPixmap(box)
self.maskPixmap.fill(Qt.transparent)
g = QRadialGradient()
g.setCenter(radius, radius)
g.setFocalPoint(radius, radius)
g.setRadius(radius)
g.setColorAt(1.0, QColor(255, 255, 255, 0))
g.setColorAt(0.5, QColor(128, 128, 128, 255))
mask = QPainter(self.maskPixmap)
mask.setRenderHint(QPainter.Antialiasing)
mask.setCompositionMode(QPainter.CompositionMode_Source)
mask.setBrush(g)
mask.setPen(Qt.NoPen)
mask.drawRect(self.maskPixmap.rect())
mask.setBrush(QColor(Qt.transparent))
mask.drawEllipse(g.center(), ring, ring)
mask.end()
center = self.dragPos - QPoint(0, radius)
center = center + QPoint(0, radius / 2)
corner = center - QPoint(radius, radius)
xy = center * 2 - QPoint(radius, radius)
# only set the dimension to the magnified portion
if self.zoomPixmap.size() != box:
zoomPixmap = QPixmap(box)
zoomPixmap.fill(Qt.lightGray)
if True:
p = QPainter(zoomPixmap)
p.translate(-xy)
self.m_largeMap.render(p, QRect(xy, box))
p.end()
clipPath = QPainterPath()
clipPath.addEllipse(center, ring, ring)
p = QPainter(self)
p.setRenderHint(QPainter.Antialiasing)
p.setClipPath(clipPath)
p.drawPixmap(corner, zoomPixmap)
p.setClipping(False)
p.drawPixmap(corner, self.maskPixmap)
p.setPen(Qt.gray)
p.drawPath(clipPath)
if self.invert:
p = QPainter(self)
p.setCompositionMode(QPainter.CompositionMode_Difference)
p.fillRect(event.rect(), Qt.white)
p.end()
def timerEvent(self, event: QTimerEvent) -> None:
if not self.zoomed:
self.activateZoom()
self.update()
def mousePressEvent(self, event: QMouseEvent) -> None:
if event.buttons() != Qt.LeftButton:
return
self.pressed = self.snapped = True
self.pressPos = self.dragPos = event.pos()
self.tapTimer.stop()
self.tapTimer.start(HOLD_TIME, self)
def mouseMoveEvent(self, event: QMouseEvent) -> None:
if not event.buttons():
return
if not self.zoomed:
if not self.pressed or not self.snapped:
delta = event.pos() - self.pressPos
self.pressPos = event.pos()
self.m_normalMap.pan(delta)
return
else:
threshold = 10
delta = event.pos() - self.pressPos
if self.snapped:
self.snapped &= delta.x() < threshold
self.snapped &= delta.y() < threshold
self.snapped &= delta.x() > -threshold
self.snapped &= delta.y() > -threshold
if not self.snapped:
self.tapTimer.stop()
else:
self.dragPos = event.pos()
self.update()
def mouseReleaseEvent(self, event: QMouseEvent) -> None:
self.zoomed = False
self.update()
def keyPressEvent(self, event: QKeyEvent) -> None:
if not self.zoomed:
if event.key() == Qt.Key_Left:
self.m_normalMap.pan(QPoint(20, 0))
if event.key() == Qt.Key_Right:
self.m_normalMap.pan(QPoint(-20, 0))
if event.key() == Qt.Key_Up:
self.m_normalMap.pan(QPoint(0, 20))
if event.key() == Qt.Key_Down:
self.m_normalMap.pan(QPoint(0, -20))
if event.key() == Qt.Key_Z or event.key() == Qt.Key_Select:
self.dragPos = QPoint(self.width() / 2, self.height() / 2)
self.activateZoom()
else:
if event.key() == Qt.Key_Z or event.key() == Qt.Key_Select:
self.zoomed = False
self.update()
delta = QPoint(0, 0)
if event.key() == Qt.Key_Left:
delta = QPoint(-15, 0)
if event.key() == Qt.Key_Right:
delta = QPoint(15, 0)
if event.key() == Qt.Key_Up:
delta = QPoint(0, -15)
if event.key() == Qt.Key_Down:
delta = QPoint(0, 15)
if delta != QPoint(0, 0):
self.dragPos += delta
self.update()
@Slot(QRect)
def updateMap(self, r):
self.update(r)