def add_instance(
self, instance: "GameInstance"
) -> Tuple[QGraphicsItem, Callable[[], None]]:
"""Add instance to manage, return a disconnect function and the canvas"""
positionChanged = lambda rect: self.on_instance_moved(instance, rect)
instance.positionChanged.connect(positionChanged)
focusChanged = lambda focus: self.on_instance_focus_change(
instance, focus)
instance.focusChanged.connect(focusChanged)
instance_pos = instance.get_position()
gfx = QGraphicsRectItem(rect=instance_pos)
gfx.setPen(self.transparent_pen)
gfx.setPos(instance_pos.x(), instance_pos.y())
self.scene.addItem(gfx)
self._instances[instance.wid] = gfx
def disconnect():
gfx.hide()
self.scene.removeItem(gfx)
instance.positionChanged.disconnect(positionChanged)
instance.focusChanged.disconnect(focusChanged)
return gfx, disconnect
def _generate_indicators(self, **kwargs): # pylint: disable=unused-argument
"""
Paint arrow indicators of selected instructions and labels.
"""
scene = self.scene()
for item in self._map_indicator_items:
scene.removeItem(item)
self._map_indicator_items.clear()
for addr in list(self.disasm_view.infodock.selected_insns) + list(
self.disasm_view.infodock.selected_labels):
pos = self._get_pos_from_addr(addr)
if pos is None:
continue
pos -= 1 # this is the top-left x coordinate of our arrow body (the rectangle)
pen = QPen(Qt.yellow)
brush = QBrush(Qt.yellow)
item = QGraphicsRectItem(QRectF(pos, 0, 2, 10), parent=self)
item.setPen(pen)
item.setBrush(brush)
item.setZValue(self.ZVALUE_INDICATOR)
self._map_indicator_items.append(item)
triangle = QPolygonF()
triangle.append(QPointF(pos - 1, 10))
triangle.append(QPointF(pos + 3, 10))
triangle.append(QPointF(pos + 1, 12))
triangle.append(QPointF(pos - 1, 10))
item = QGraphicsPolygonItem(triangle, parent=self)
item.setPen(pen)
item.setBrush(brush)
item.setZValue(self.ZVALUE_INDICATOR)
self._map_indicator_items.append(item)
def overlay_rect(self, color: int, x: int, y: int, w: int, h: int,
timeout: int, line_width: int):
pen = QPen(decode_color(color))
pen.setWidthF(max(1.0, line_width / 10))
gfx = QGraphicsRectItem(x, y, w, h)
gfx.setPen(pen)
self._finalize_gfx(gfx, timeout)
def createItem(x, scene):
rectItem = QGraphicsRectItem(QRectF(x + 40, 40, 120, 120))
scene.addItem(rectItem)
rectItem.setPen(QPen(Qt.black))
rectItem.setBrush(Qt.gray)
innerRectItem = QGraphicsRectItem(QRectF(x + 50, 50, 45, 100), rectItem)
innerRectItem.setPen(QPen(Qt.black))
innerRectItem.setBrush(Qt.white)
# scene.addItem(innerRectItem)
ellipseItem = QGraphicsEllipseItem(QRectF(x + 105, 50, 45, 100), rectItem)
ellipseItem.setPen(QPen(Qt.black))
ellipseItem.setBrush(Qt.white)
# scene.addItem(ellipseItem)
return rectItem
class ObjectLabelItem(QGraphicsTextItem):
"""Provides a label for ObjectItem's."""
entity_name_edited = Signal(str)
def __init__(self, entity_item):
"""Initializes item.
Args:
entity_item (spinetoolbox.widgets.graph_view_graphics_items.EntityItem): The parent item.
"""
super().__init__(entity_item)
self.entity_item = entity_item
self._font = QApplication.font()
self._font.setPointSize(11)
self.setFont(self._font)
self.bg = QGraphicsRectItem(self)
self.bg_color = QGuiApplication.palette().color(
QPalette.Normal, QPalette.ToolTipBase)
self.bg_color.setAlphaF(0.8)
self.bg.setBrush(QBrush(self.bg_color))
self.bg.setPen(Qt.NoPen)
self.bg.setFlag(QGraphicsItem.ItemStacksBehindParent)
self.setFlag(QGraphicsItem.ItemIsSelectable, enabled=False)
self.setAcceptHoverEvents(False)
self._cursor = self.textCursor()
self._text_backup = None
def setPlainText(self, text):
"""Set texts and resets position.
Args:
text (str)
"""
super().setPlainText(text)
self.reset_position()
def reset_position(self):
"""Adapts item geometry so text is always centered."""
rectf = self.boundingRect()
x = -rectf.width() / 2
y = rectf.height() + 4
self.setPos(x, y)
self.bg.setRect(self.boundingRect())
def _generate_hover_region(self):
"""
Paint the memory region indicator.
"""
if self._map_hover_region_item:
self.scene().removeItem(self._map_hover_region_item)
self._map_hover_region_item = None
mr = self._map_hover_region
if mr is None:
return
pw = 1.0
hpw = pw / 2
pen = QPen(Qt.red)
pen.setWidth(pw)
r = self._get_region_rect(mr)
r = r.marginsRemoved(QMarginsF(hpw, hpw, hpw, hpw))
item = QGraphicsRectItem(r, parent=self)
item.setPen(pen)
item.setZValue(self.ZVALUE_HOVER)
self._map_hover_region_item = item
def __init__(self, parent: QWidget = None) -> None:
"""
Create a GraphicsView for Facile.
:param parent: The widget to embed the graphics view into
:type parent: QWidget
:return: None
:rtype: NoneType
"""
super(FacileGraphicsView, self).__init__(parent)
# set flags
self.setDragMode(QGraphicsView.ScrollHandDrag)
self.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)
# show initial message
scene = QGraphicsScene()
box = QGraphicsRectItem(0, 0, 100, 100)
box.setPen(QColor(Qt.transparent))
box.setBrush(QColor(Qt.transparent))
QGraphicsTextItem("Nothing to show here yet!", box)
scene.addItem(box)
self.setScene(scene)
QWidget,
QGraphicsSimpleTextItem,
QGraphicsEllipseItem,
QGraphicsPolygonItem,
)
from PySide2.QtGui import (QPen, QBrush, QPolygonF)
from PySide2.QtCore import (Qt, QRectF, QPoint, QPointF)
import sys
if __name__ == '__main__':
app = QApplication(sys.argv)
scene = QGraphicsScene(QRectF(-50, -50, 400, 200))
rect = QGraphicsRectItem(scene.sceneRect().adjusted(1, 1, -1, -1))
rect.setPen(QPen(Qt.red, 1))
scene.addItem(rect)
rectItem = QGraphicsRectItem(QRectF(-25, 25, 200, 40))
rectItem.setPen(QPen(Qt.red, 3, Qt.DashDotLine))
rectItem.setBrush(Qt.gray)
scene.addItem(rectItem)
print(f'Rect Pos: {rectItem.pos()}')
textItem = QGraphicsSimpleTextItem("Foundation of Qt")
scene.addItem(textItem)
print(f'Text Pos: {textItem.pos()}')
textItem.setPos(50, 0)
print(f'Text Pos: {textItem.pos()}')
ellipseItem = QGraphicsEllipseItem(QRectF(170, 20, 100, 75))
class EntityItem(QGraphicsPixmapItem):
def __init__(self,
graph_view_form,
x,
y,
extent,
entity_id=None,
entity_class_id=None):
"""Initializes item
Args:
graph_view_form (GraphViewForm): 'owner'
x (float): x-coordinate of central point
y (float): y-coordinate of central point
extent (int): Preferred extent
entity_id (int, optional): The entity id in case of a non-wip item
entity_class_id (int, optional): The entity class id in case of a wip item
"""
if not entity_id and not entity_class_id:
raise ValueError(
"Can't create an RelationshipItem without relationship id nor relationship class id."
)
super().__init__()
self._graph_view_form = graph_view_form
self.db_mngr = graph_view_form.db_mngr
self.db_map = graph_view_form.db_map
self.entity_id = entity_id
self._entity_class_id = entity_class_id
self._entity_name = f"<WIP {self.entity_class_name}>"
self.arc_items = list()
self._extent = extent
self.refresh_icon()
self.setPos(x, y)
rect = self.boundingRect()
self.setOffset(-rect.width() / 2, -rect.height() / 2)
self._press_pos = None
self._merge_target = None
self._moved_on_scene = False
self._view_transform = QTransform(
) # To determine collisions in the view
self._views_cursor = {}
self._bg = None
self._bg_brush = Qt.NoBrush
self._init_bg()
self._bg.setFlag(QGraphicsItem.ItemStacksBehindParent, enabled=True)
self.is_wip = None
self._question_item = None # In case this becomes a template
if not self.entity_id:
self.become_wip()
else:
self.become_whole()
self.setZValue(0)
self.setFlag(QGraphicsItem.ItemIsSelectable, enabled=True)
self.setFlag(QGraphicsItem.ItemIsMovable, enabled=True)
self.setFlag(QGraphicsItem.ItemIgnoresTransformations, enabled=True)
self.setFlag(QGraphicsItem.ItemSendsScenePositionChanges, enabled=True)
self.setAcceptHoverEvents(True)
self.setCursor(Qt.ArrowCursor)
@property
def entity_type(self):
raise NotImplementedError()
@property
def entity_name(self):
return self.db_mngr.get_item(self.db_map, self.entity_type,
self.entity_id).get(
"name", self._entity_name)
@property
def entity_class_type(self):
return {
"relationship": "relationship class",
"object": "object class"
}[self.entity_type]
@property
def entity_class_id(self):
return self.db_mngr.get_item(self.db_map, self.entity_type,
self.entity_id).get(
"class_id", self._entity_class_id)
@property
def entity_class_name(self):
return self.db_mngr.get_item(self.db_map, self.entity_class_type,
self.entity_class_id)["name"]
def boundingRect(self):
return super().boundingRect() | self.childrenBoundingRect()
def _init_bg(self):
self._bg = QGraphicsRectItem(self.boundingRect(), self)
self._bg.setPen(Qt.NoPen)
def refresh_icon(self):
"""Refreshes the icon."""
pixmap = self.db_mngr.entity_class_icon(
self.db_map, self.entity_class_type,
self.entity_class_id).pixmap(self._extent)
self.setPixmap(pixmap)
def shape(self):
"""Returns a shape containing the entire bounding rect, to work better with icon transparency."""
path = QPainterPath()
path.addRect(self.boundingRect())
return path
def paint(self, painter, option, widget=None):
"""Shows or hides the selection halo."""
if option.state & (QStyle.State_Selected):
self._paint_as_selected()
option.state &= ~QStyle.State_Selected
else:
self._paint_as_deselected()
super().paint(painter, option, widget)
def _paint_as_selected(self):
self._bg.setBrush(QGuiApplication.palette().highlight())
def _paint_as_deselected(self):
self._bg.setBrush(self._bg_brush)
def add_arc_item(self, arc_item):
"""Adds an item to the list of arcs.
Args:
arc_item (ArcItem)
"""
self.arc_items.append(arc_item)
def become_wip(self):
"""Turns this item into a work-in-progress."""
self.is_wip = True
font = QFont("", 0.6 * self._extent)
self._question_item = OutlinedTextItem("?", self, font)
# Position question item
rect = super().boundingRect()
question_rect = self._question_item.boundingRect()
x = rect.center().x() - question_rect.width() / 2
y = rect.center().y() - question_rect.height() / 2
self._question_item.setPos(x, y)
self.setToolTip(self._make_wip_tool_tip())
def _make_wip_tool_tip(self):
raise NotImplementedError()
def become_whole(self):
"""Removes the wip status from this item."""
self.is_wip = False
if self._question_item:
self.scene().removeItem(self._question_item)
def adjust_to_zoom(self, transform):
"""Saves the view's transform to determine collisions later on.
Args:
transform (QTransform): The view's transformation matrix after the zoom.
"""
self._view_transform = transform
factor = transform.m11()
self.setFlag(QGraphicsItem.ItemIgnoresTransformations,
enabled=factor > 1)
def device_rect(self):
"""Returns the item's rect in devices's coordinates.
Used to accurately determine collisions.
"""
return self.deviceTransform(self._view_transform).mapRect(
super().boundingRect())
def _find_merge_target(self):
"""Returns a suitable merge target if any.
Returns:
spinetoolbox.widgets.graph_view_graphics_items.EntityItem, NoneType
"""
scene = self.scene()
if not scene:
return None
colliding = [
x for x in scene.items()
if isinstance(x, EntityItem) and x is not self
and x.device_rect().intersects(self.device_rect())
]
return next(iter(colliding), None)
# pylint: disable=no-self-use
def _is_target_valid(self):
"""Whether or not the registered merge target is valid.
Returns:
bool
"""
return False
# pylint: disable=no-self-use
def merge_into_target(self, force=False):
"""Merges this item into the registered target if valid.
Returns:
bool: True if merged, False if not.
"""
return False
def mousePressEvent(self, event):
"""Saves original position for bouncing purposes.
Args:
event (QGraphicsSceneMouseEvent)
"""
super().mousePressEvent(event)
self._press_pos = self.pos()
self._merge_target = None
def mouseMoveEvent(self, event):
"""Moves the item and all connected arcs. Also checks for a merge target
and sets an appropriate mouse cursor.
Args:
event (QGraphicsSceneMouseEvent)
"""
if event.buttons() & Qt.LeftButton == 0:
super().mouseMoveEvent(event)
return
move_by = event.scenePos() - event.lastScenePos()
# Move selected items together
for item in self.scene().selectedItems():
if isinstance(item, (EntityItem)):
item.moveBy(move_by.x(), move_by.y())
item.move_arc_items(move_by)
self._merge_target = self._find_merge_target()
for view in self.scene().views():
self._views_cursor.setdefault(view, view.viewport().cursor())
if not self._merge_target:
try:
view.viewport().setCursor(self._views_cursor[view])
except KeyError:
pass
continue
if self._is_target_valid():
view.viewport().setCursor(Qt.DragCopyCursor)
else:
view.viewport().setCursor(Qt.ForbiddenCursor)
def move_arc_items(self, pos_diff):
"""Moves arc items.
Args:
pos_diff (QPoint)
"""
raise NotImplementedError()
def mouseReleaseEvent(self, event):
"""Merges the item into the registered target if any. Bounces it if not possible.
Shrinks the scene if needed.
Args:
event (QGraphicsSceneMouseEvent)
"""
super().mouseReleaseEvent(event)
if self._merge_target:
if self.merge_into_target():
return
self._bounce_back(self.pos())
if self._moved_on_scene:
self._moved_on_scene = False
scene = self.scene()
scene.shrink_if_needed()
scene.item_move_finished.emit(self)
def _bounce_back(self, current_pos):
"""Bounces the item back from given position to its original position.
Args:
current_pos (QPoint)
"""
if self._press_pos is None:
return
self.move_arc_items(self._press_pos - current_pos)
self.setPos(self._press_pos)
def itemChange(self, change, value):
"""
Keeps track of item's movements on the scene.
Args:
change (GraphicsItemChange): a flag signalling the type of the change
value: a value related to the change
Returns:
the same value given as input
"""
if change == QGraphicsItem.ItemScenePositionHasChanged:
self._moved_on_scene = True
return value
def set_all_visible(self, on):
"""Sets visibility status for this item and all arc items.
Args:
on (bool)
"""
for item in self.arc_items:
item.setVisible(on)
self.setVisible(on)
def wipe_out(self):
"""Removes this item and all its arc items from the scene."""
self.scene().removeItem(self)
for arc_item in self.arc_items:
if arc_item.scene():
arc_item.scene().removeItem(arc_item)
other_item = arc_item.other_item(self)
if other_item.is_wip:
other_item.wipe_out()
def contextMenuEvent(self, e):
"""Shows context menu.
Args:
e (QGraphicsSceneMouseEvent): Mouse event
"""
e.accept()
if not self.isSelected() and not e.modifiers() & Qt.ControlModifier:
self.scene().clearSelection()
self.setSelected(True)
self._show_item_context_menu_in_parent(e.screenPos())
def _show_item_context_menu_in_parent(self, pos):
raise NotImplementedError()
class MaskScene(QGraphicsScene):
_stage_text = 'STAGE %s'
def __init__(self, main_window, stage=1):
super().__init__()
self.main_window = main_window
self.stage = stage
self.upper_mask = QGraphicsRectItem(0, 0, content_width, 0)
self.lower_mask = QGraphicsRectItem(0, content_height, content_width, 0)
self.stage_text_item = QGraphicsTextItem()
self.mask_height = 0
self.animation_timer_1 = QTimer()
self.animation_timer_2 = QTimer()
self.animation_timer_3 = QTimer()
self.selected = None
self.init()
def init(self):
mask_brush = QBrush()
mask_brush.setColor(Qt.gray)
mask_brush.setStyle(Qt.SolidPattern)
mask_pen = QPen()
mask_pen.setColor(Qt.gray)
self.upper_mask.setBrush(mask_brush)
self.lower_mask.setBrush(mask_brush)
self.upper_mask.setPen(mask_pen)
self.lower_mask.setPen(mask_pen)
self.addItem(self.upper_mask)
self.addItem(self.lower_mask)
font = QFont()
font.setPointSize(20)
font.setBold(True)
self.stage_text_item.setPlainText(self._stage_text % self.stage)
self.stage_text_item.setFont(font)
self.stage_text_item.setDefaultTextColor(Qt.black)
self.stage_text_item.setX(content_width / 2 - int(self.stage_text_item.boundingRect().width() / 2))
self.stage_text_item.setY(content_height / 2 - int(self.stage_text_item.boundingRect().height() / 2))
self.animation_timer_1.setInterval(interval)
self.animation_timer_1.timeout.connect(self.animation_in)
self.animation_timer_2.setSingleShot(True)
self.animation_timer_2.timeout.connect(self.animation_hold)
self.animation_timer_2.setInterval(800)
self.animation_timer_3.setInterval(interval)
self.animation_timer_3.timeout.connect(self.animation_out)
def next_stage(self):
self.stage += 1
self.stage_text_item.setPlainText(self._stage_text % self.stage)
def reset_stage(self):
self.stage = 0
self.stage_text_item.setPlainText(self._stage_text % self.stage)
def animation_in(self):
self.mask_height += 10
finished = False
if self.mask_height > content_height / 2:
self.mask_height = content_height / 2
finished = True
self.upper_mask.setRect(0, 0, content_width, self.mask_height)
self.lower_mask.setRect(0, content_height - self.mask_height, content_width, self.mask_height)
if finished:
self.addItem(self.stage_text_item)
self.animation_timer_1.stop()
self.animation_timer_2.start()
def animation_out(self):
self.mask_height -= 10
finished = False
if self.mask_height < 0:
self.mask_height = 0
finished = True
self.upper_mask.setRect(0, 0, content_width, self.mask_height)
self.lower_mask.setRect(0, content_height - self.mask_height, content_width, self.mask_height)
if finished:
self.animation_timer_3.stop()
self.main_window.start_game(self.selected)
def animation_hold(self):
self.removeItem(self.stage_text_item)
self.animation_timer_3.start()
self.main_window.enter_game_scene()
def start_animation(self, selected: int):
self.animation_timer_1.start()
self.selected = selected
class EntityItem(QGraphicsRectItem):
"""Base class for ObjectItem and RelationshipItem."""
def __init__(self, spine_db_editor, x, y, extent, db_map_entity_id=None):
"""Initializes item
Args:
spine_db_editor (SpineDBEditor): 'owner'
x (float): x-coordinate of central point
y (float): y-coordinate of central point
extent (int): Preferred extent
db_map_entity_id (tuple): db_map, entity id
"""
super().__init__()
self._spine_db_editor = spine_db_editor
self.db_mngr = spine_db_editor.db_mngr
self.db_map_entity_id = db_map_entity_id
self.arc_items = list()
self._extent = extent
self.setRect(-0.5 * self._extent, -0.5 * self._extent, self._extent,
self._extent)
self.setPen(Qt.NoPen)
self._svg_item = QGraphicsSvgItem(self)
self._svg_item.setCacheMode(
QGraphicsItem.CacheMode.NoCache
) # Needed for the exported pdf to be vector
self.refresh_icon()
self.setPos(x, y)
self._moved_on_scene = False
self._bg = None
self._bg_brush = Qt.NoBrush
self._init_bg()
self._bg.setFlag(QGraphicsItem.ItemStacksBehindParent, enabled=True)
self.setZValue(0)
self.setFlag(QGraphicsItem.ItemIsSelectable, enabled=True)
self.setFlag(QGraphicsItem.ItemIsMovable, enabled=True)
self.setFlag(QGraphicsItem.ItemIgnoresTransformations, enabled=True)
self.setFlag(QGraphicsItem.ItemSendsScenePositionChanges, enabled=True)
self.setAcceptHoverEvents(True)
self.setCursor(Qt.ArrowCursor)
self.setToolTip(self._make_tool_tip())
def _make_tool_tip(self):
raise NotImplementedError()
@property
def entity_type(self):
raise NotImplementedError()
@property
def entity_name(self):
return self.db_mngr.get_item(self.db_map, self.entity_type,
self.entity_id)["name"]
@property
def entity_class_type(self):
return {
"relationship": "relationship_class",
"object": "object_class"
}[self.entity_type]
@property
def entity_class_id(self):
return self.db_mngr.get_item(self.db_map, self.entity_type,
self.entity_id)["class_id"]
@property
def entity_class_name(self):
return self.db_mngr.get_item(self.db_map, self.entity_class_type,
self.entity_class_id)["name"]
@property
def db_map(self):
return self.db_map_entity_id[0]
@property
def entity_id(self):
return self.db_map_entity_id[1]
@property
def first_db_map(self):
return self.db_map
@property
def display_data(self):
return self.entity_name
@property
def display_database(self):
return self.db_map.codename
@property
def db_maps(self):
return (self.db_map, )
def db_map_data(self, _db_map):
# NOTE: Needed by EditObjectsDialog and EditRelationshipsDialog
return self.db_mngr.get_item(self.db_map, self.entity_type,
self.entity_id)
def db_map_id(self, _db_map):
# NOTE: Needed by EditObjectsDialog and EditRelationshipsDialog
return self.entity_id
def boundingRect(self):
return super().boundingRect() | self.childrenBoundingRect()
def moveBy(self, dx, dy):
super().moveBy(dx, dy)
self.update_arcs_line()
def _init_bg(self):
self._bg = QGraphicsRectItem(self.boundingRect(), self)
self._bg.setPen(Qt.NoPen)
def refresh_icon(self):
"""Refreshes the icon."""
renderer = self.db_mngr.entity_class_renderer(self.db_map,
self.entity_class_type,
self.entity_class_id)
self._set_renderer(renderer)
def _set_renderer(self, renderer):
self._svg_item.setSharedRenderer(renderer)
size = renderer.defaultSize()
scale = self._extent / max(size.width(), size.height())
self._svg_item.setScale(scale)
self._svg_item.setPos(self.rect().center() - 0.5 * scale *
QPointF(size.width(), size.height()))
def shape(self):
"""Returns a shape containing the entire bounding rect, to work better with icon transparency."""
path = QPainterPath()
path.setFillRule(Qt.WindingFill)
path.addRect(self._bg.boundingRect())
return path
def paint(self, painter, option, widget=None):
"""Shows or hides the selection halo."""
if option.state & (QStyle.State_Selected):
self._paint_as_selected()
option.state &= ~QStyle.State_Selected
else:
self._paint_as_deselected()
super().paint(painter, option, widget)
def _paint_as_selected(self):
self._bg.setBrush(QGuiApplication.palette().highlight())
def _paint_as_deselected(self):
self._bg.setBrush(self._bg_brush)
def add_arc_item(self, arc_item):
"""Adds an item to the list of arcs.
Args:
arc_item (ArcItem)
"""
self.arc_items.append(arc_item)
arc_item.update_line()
def apply_zoom(self, factor):
"""Applies zoom.
Args:
factor (float): The zoom factor.
"""
if factor > 1:
factor = 1
self.setScale(factor)
def apply_rotation(self, angle, center):
"""Applies rotation.
Args:
angle (float): The angle in degrees.
center (QPoint): Rotates around this point.
"""
line = QLineF(center, self.pos())
line.setAngle(line.angle() + angle)
self.setPos(line.p2())
self.update_arcs_line()
def block_move_by(self, dx, dy):
self.moveBy(dx, dy)
def mouseMoveEvent(self, event):
"""Moves the item and all connected arcs.
Args:
event (QGraphicsSceneMouseEvent)
"""
if event.buttons() & Qt.LeftButton == 0:
super().mouseMoveEvent(event)
return
move_by = event.scenePos() - event.lastScenePos()
# Move selected items together
for item in self.scene().selectedItems():
if isinstance(item, (EntityItem)):
item.block_move_by(move_by.x(), move_by.y())
def update_arcs_line(self):
"""Moves arc items."""
for item in self.arc_items:
item.update_line()
def itemChange(self, change, value):
"""
Keeps track of item's movements on the scene.
Args:
change (GraphicsItemChange): a flag signalling the type of the change
value: a value related to the change
Returns:
the same value given as input
"""
if change == QGraphicsItem.ItemScenePositionHasChanged:
self._moved_on_scene = True
return value
def set_all_visible(self, on):
"""Sets visibility status for this item and all arc items.
Args:
on (bool)
"""
for item in self.arc_items:
item.setVisible(on)
self.setVisible(on)
def _make_menu(self):
return self._spine_db_editor.ui.graphicsView.make_items_menu()
def contextMenuEvent(self, e):
"""Shows context menu.
Args:
e (QGraphicsSceneMouseEvent): Mouse event
"""
e.accept()
if not self.isSelected() and not e.modifiers() & Qt.ControlModifier:
self.scene().clearSelection()
self.setSelected(True)
menu = self._make_menu()
menu.popup(e.screenPos())
class EntityItem(QGraphicsPixmapItem):
"""Base class for ObjectItem and RelationshipItem."""
def __init__(self, data_store_form, x, y, extent, entity_id=None):
"""Initializes item
Args:
data_store_form (DataStoreForm): 'owner'
x (float): x-coordinate of central point
y (float): y-coordinate of central point
extent (int): Preferred extent
entity_id (int): The entity id
"""
super().__init__()
self._data_store_form = data_store_form
self.db_mngr = data_store_form.db_mngr
self.db_map = data_store_form.db_map
self.entity_id = entity_id
self.arc_items = list()
self._extent = extent
self.refresh_icon()
self.setPos(x, y)
rect = self.boundingRect()
self.setOffset(-rect.width() / 2, -rect.height() / 2)
self._moved_on_scene = False
self._bg = None
self._bg_brush = Qt.NoBrush
self._init_bg()
self._bg.setFlag(QGraphicsItem.ItemStacksBehindParent, enabled=True)
self.setZValue(0)
self.setFlag(QGraphicsItem.ItemIsSelectable, enabled=True)
self.setFlag(QGraphicsItem.ItemIsMovable, enabled=True)
self.setFlag(QGraphicsItem.ItemIgnoresTransformations, enabled=True)
self.setFlag(QGraphicsItem.ItemSendsScenePositionChanges, enabled=True)
self.setAcceptHoverEvents(True)
self.setCursor(Qt.ArrowCursor)
@property
def entity_type(self):
raise NotImplementedError()
@property
def entity_name(self):
return self.db_mngr.get_item(self.db_map, self.entity_type,
self.entity_id)["name"]
@property
def entity_class_type(self):
return {
"relationship": "relationship class",
"object": "object class"
}[self.entity_type]
@property
def entity_class_id(self):
return self.db_mngr.get_item(self.db_map, self.entity_type,
self.entity_id)["class_id"]
@property
def entity_class_name(self):
return self.db_mngr.get_item(self.db_map, self.entity_class_type,
self.entity_class_id)["name"]
@property
def first_db_map(self):
return self.db_map
@property
def display_data(self):
return self.entity_name
@property
def display_database(self):
return self.db_map.codename
@property
def db_maps(self):
return (self.db_map, )
def db_map_data(self, _db_map):
return self.db_mngr.get_item(self.db_map, self.entity_type,
self.entity_id)
def db_map_id(self, _db_map):
return self.entity_id
def boundingRect(self):
return super().boundingRect() | self.childrenBoundingRect()
def moveBy(self, dx, dy):
super().moveBy(dx, dy)
self.update_arcs_line()
def _init_bg(self):
self._bg = QGraphicsRectItem(self.boundingRect(), self)
self._bg.setPen(Qt.NoPen)
def refresh_icon(self):
"""Refreshes the icon."""
pixmap = self.db_mngr.entity_class_icon(
self.db_map, self.entity_class_type,
self.entity_class_id).pixmap(self._extent)
self.setPixmap(pixmap)
def shape(self):
"""Returns a shape containing the entire bounding rect, to work better with icon transparency."""
path = QPainterPath()
path.setFillRule(Qt.WindingFill)
path.addRect(self._bg.boundingRect())
return path
def paint(self, painter, option, widget=None):
"""Shows or hides the selection halo."""
if option.state & (QStyle.State_Selected):
self._paint_as_selected()
option.state &= ~QStyle.State_Selected
else:
self._paint_as_deselected()
super().paint(painter, option, widget)
def _paint_as_selected(self):
self._bg.setBrush(QGuiApplication.palette().highlight())
def _paint_as_deselected(self):
self._bg.setBrush(self._bg_brush)
def add_arc_item(self, arc_item):
"""Adds an item to the list of arcs.
Args:
arc_item (ArcItem)
"""
self.arc_items.append(arc_item)
arc_item.update_line()
def apply_zoom(self, factor):
"""Applies zoom.
Args:
factor (float): The zoom factor.
"""
if factor > 1:
factor = 1
self.setScale(factor)
def apply_rotation(self, angle, center):
"""Applies rotation.
Args:
angle (float): The angle in degrees.
center (QPoint): Rotates around this point.
"""
line = QLineF(center, self.pos())
line.setAngle(line.angle() + angle)
self.setPos(line.p2())
self.update_arcs_line()
def block_move_by(self, dx, dy):
self.moveBy(dx, dy)
def mouseMoveEvent(self, event):
"""Moves the item and all connected arcs. Also checks for a merge target
and sets an appropriate mouse cursor.
Args:
event (QGraphicsSceneMouseEvent)
"""
if event.buttons() & Qt.LeftButton == 0:
super().mouseMoveEvent(event)
return
move_by = event.scenePos() - event.lastScenePos()
# Move selected items together
for item in self.scene().selectedItems():
if isinstance(item, (EntityItem)):
item.block_move_by(move_by.x(), move_by.y())
def update_arcs_line(self):
"""Moves arc items."""
for item in self.arc_items:
item.update_line()
def itemChange(self, change, value):
"""
Keeps track of item's movements on the scene.
Args:
change (GraphicsItemChange): a flag signalling the type of the change
value: a value related to the change
Returns:
the same value given as input
"""
if change == QGraphicsItem.ItemScenePositionHasChanged:
self._moved_on_scene = True
return value
def set_all_visible(self, on):
"""Sets visibility status for this item and all arc items.
Args:
on (bool)
"""
for item in self.arc_items:
item.setVisible(on)
self.setVisible(on)
def _make_menu(self):
menu = QMenu(self._data_store_form)
menu.addAction(self._data_store_form.ui.actionSave_positions)
menu.addAction(self._data_store_form.ui.actionClear_positions)
menu.addSeparator()
menu.addAction(self._data_store_form.ui.actionHide_selected)
menu.addAction(self._data_store_form.ui.actionPrune_selected_entities)
menu.addAction(self._data_store_form.ui.actionPrune_selected_classes)
menu.addSeparator()
menu.addAction(self._data_store_form.ui.actionEdit_selected)
menu.addAction(self._data_store_form.ui.actionRemove_selected)
return menu
def contextMenuEvent(self, e):
"""Shows context menu.
Args:
e (QGraphicsSceneMouseEvent): Mouse event
"""
e.accept()
if not self.isSelected() and not e.modifiers() & Qt.ControlModifier:
self.scene().clearSelection()
self.setSelected(True)
self._data_store_form._handle_menu_graph_about_to_show()
self._menu.popup(e.screenPos())
class CanvasGraphicsView(QtWidgets.QGraphicsView):
capture_complete = QtCore.Signal()
def __init__(self, parent=None):
super().__init__(parent)
self.image = None
self.rect_item = None
self.start_pos = None
def setup_scene(self, img: Image):
#if img.mode != "RGB":
#img = img.convert("RGB")
self.image = img
scene = CanvasGraphicsScene()
self.setScene(scene)
#scene固有の初期化
qtimg = ImageQt(self.image)
pixmap = QPixmap.fromImage(qtimg).copy()
pixmap_item = QGraphicsPixmapItem(pixmap)
self.scene().addItem(pixmap_item)
pixmap_item.setPos(0, 0)
self.rect_item = QGraphicsRectItem(0, 0, 200, 200)
self.rect_item.setPen(QPen(QtCore.Qt.blue, 3))
self.rect_item.hide()
self.scene().addItem(self.rect_item)
self.frame_rect_item = QGraphicsRectItem(0, 0, self.image.width - 3,
self.image.height - 3)
self.frame_rect_item.setPen(QPen(QtCore.Qt.red, 5))
self.scene().addItem(self.frame_rect_item)
self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
img = self.image
self.setSceneRect(0, 0, img.width, img.height)
self.setFixedSize(img.width, img.height)
self._dragging = False
pass
def mousePressEvent(self, event):
event.accept()
if event.button() == QtCore.Qt.MouseButton.RightButton:
#self._parent_window.accepted()
self.capture_complete.emit()
return
else:
self._dragging = True
orig_pos = self.mapFromGlobal(QCursor.pos())
scene_pos = self.mapToScene(orig_pos)
#self.rect_item.show()
self.start_pos = scene_pos
def keyPressEvent(self, event):
if event.key() == QtCore.Qt.Key_Escape:
self.capture_complete.emit()
def mouseMoveEvent(self, event):
event.accept()
if self._dragging:
orig_pos = self.mapFromGlobal(QCursor.pos())
now_pos = self.mapToScene(orig_pos)
s_x = self.start_pos.x()
s_y = self.start_pos.y()
n_x = now_pos.x()
n_y = now_pos.y()
self.rect_item.setRect(s_x, s_y, max(0, n_x - s_x), n_y - s_y)
self.rect_item.show()
def mouseReleaseEvent(self, event):
event.accept()
orig_pos = self.mapFromGlobal(QCursor.pos())
now_pos = self.mapToScene(orig_pos)
s_x = self.start_pos.x()
s_y = self.start_pos.y()
n_x = now_pos.x()
n_y = now_pos.y()
data = {"rect": (s_x, s_y, n_x, n_y)}
res = QtWidgets.QMessageBox.information(None, "確認", "この領域を保存しますか？",
QtWidgets.QMessageBox.Yes,
QtWidgets.QMessageBox.No)
if res == QtWidgets.QMessageBox.Yes:
import json
with open(area_data_path, "w", encoding="utf-8") as f:
json.dump(data, f)
self.capture_complete.emit()
self._dragging = False
self.rect_item.hide()
def _create_line_indicator(self, addr, item_map, color=Qt.yellow, show_frontier=False, z=None, z_frontier=None):
"""
Generate a cursor at a given address.
"""
pos_x = self._get_pos_from_addr(addr)
if pos_x is None:
return
pen = QPen(color)
brush = QBrush(color)
height = self.height
tri_width = 7
tri_height = 4
pos_x = int(pos_x - tri_width / 2) # Center drawing
center = pos_x + int(tri_width / 2)
pos_y = 0
frontier_width = int(0.15 * max(self.width, self.height))
if show_frontier:
# Draw frontier gradients
r = QRectF(center - frontier_width, pos_y, frontier_width, height)
bg = QLinearGradient(r.topLeft(), r.topRight())
color = Qt.red
top_color = QColor(color)
top_color.setAlpha(0)
bg.setColorAt(0, top_color)
bottom_color = QColor(color)
bottom_color.setAlpha(180)
bg.setColorAt(1, bottom_color)
i = QGraphicsRectItem(r, parent=self)
i.setPen(Qt.NoPen)
i.setBrush(bg)
if z_frontier is not None:
i.setZValue(z_frontier)
item_map.append(i)
r = QRectF(center, pos_y, frontier_width, height)
bg = QLinearGradient(r.topLeft(), r.topRight())
color = Qt.blue
top_color = QColor(color)
bg.setColorAt(0, top_color)
bottom_color = QColor(color)
bottom_color.setAlpha(0)
bg.setColorAt(1, bottom_color)
i = QGraphicsRectItem(r, parent=self)
i.setPen(Qt.NoPen)
i.setBrush(bg)
if z_frontier is not None:
i.setZValue(z_frontier)
item_map.append(i)
# Draw line
i = QGraphicsLineItem(center, 0, center, height, parent=self)
i.setPen(pen)
if z is not None:
i.setZValue(z)
item_map.append(i)
# Draw top and bottom triangles
t = QPolygonF()
t.append(QPointF(pos_x, pos_y))
t.append(QPointF(pos_x + tri_width - 1, pos_y))
t.append(QPointF(center, pos_y + tri_height - 1))
t.append(QPointF(pos_x, pos_y))
pos_y += height - 1
b = QPolygonF()
b.append(QPointF(pos_x, pos_y))
b.append(QPointF(center, pos_y - tri_height + 1))
b.append(QPointF(pos_x + tri_width - 1, pos_y))
b.append(QPointF(pos_x, pos_y))
for i in [QGraphicsPolygonItem(t, parent=self),
QGraphicsPolygonItem(b, parent=self)]:
i.setPen(pen)
i.setBrush(brush)
if z is not None:
i.setZValue(z)
item_map.append(i)
class TextLineItem(QAbstractGraphicsShapeItem):
"""A one-line text item.
Default origin point is at the left side of the baseline. This can change if setAlignMode is called. TextLineItem
also supports drawing text background. Its brush can be set using setBackgroundBrush(). Text must not contain
newline characters.
"""
def __init__(self, text=None, parent=None):
super().__init__(parent)
self._text = text or ""
self._elided_text = text or ""
self._elide_mode = Qt.ElideRight
self._align_mode = Qt.AlignLeft
self._max_width = None
self._font = QFont()
self._bounding_rect = QRectF()
"""Bounding and drawing rectangle. Determined automatically."""
self.background = QGraphicsRectItem(self)
self.background.setPen(Qt.NoPen)
self.background.setFlag(QGraphicsItem.ItemStacksBehindParent)
self.adjust()
def setText(self, text: str, /) -> None:
if '\n' in text:
raise ValueError("text must not contain newline characters")
self.prepareGeometryChange()
self._text = text
self.adjust()
def setElideMode(self, mode: int, /) -> None:
"""Elide mode specifies where the ellipsis should be located when the text is elided. Default value is
Qt.ElideRight.
"""
self.prepareGeometryChange()
self._elide_mode = mode
self.adjust()
def setAlignMode(self, mode: int, /) -> None:
"""Align mode specifies text alignment.
Text alignment changes the origin point x position:
- If mode is Qt.AlignLeft, the origin point is on the left of the baseline.
- If mode is Qt.AlignHCenter, the origin point is in the center of the baseline.
- If mode is Qt.AlignRight, the origin point is on the right of the baseline.
Vertical alignment has no meaning for one line of text and should not be set. Default value is Qt.AlignLeft.
"""
self.prepareGeometryChange()
self._align_mode = mode
self.adjust()
def setMaximumWidth(self, width, /):
"""Set the maximum width the text is allowed to be. `None` represents unlimited width."""
self.prepareGeometryChange()
self._max_width = width
self.adjust()
def setFont(self, font: QFont, /) -> None:
self.prepareGeometryChange()
self._font = font
self.adjust()
def setBackgroundBrush(self, brush: QBrush, /):
self.background.setBrush(brush)
def text(self) -> str:
return self._text
def elidedText(self) -> str:
return self._elided_text
def elideMode(self) -> int:
return self._elide_mode
def alignMode(self) -> int:
return self._align_mode
def maximumWidth(self):
"""Maximum width the text is allowed to be. `None` represents unlimited width."""
return self._max_width
def font(self) -> QFont:
return self._font
def backgroundBrush(self):
return self.background.brush()
def adjust(self):
"""Adjust the item's geometry in response to changes."""
metrics = QFontMetricsF(self.font())
# Get bounding rectangle for full text
self._bounding_rect = metrics.boundingRect(self.text())
# Constrain by maximum width
if self.maximumWidth() is not None:
self._bounding_rect.setWidth(self.maximumWidth())
# Compute elided text
self._elided_text = metrics.elidedText(self.text(), self.elideMode(),
self.boundingRect().width())
# Get bounding rectangle for elided text
self._bounding_rect = metrics.boundingRect(self.elidedText())
# It seems that for small characters like "..." the bounding rect returned is too small. Adjust it by a small
# value.
metrics_correction = px(1 / 72)
self._bounding_rect.adjust(-metrics_correction, 0, metrics_correction,
0)
# Move origin point according to the alignment
if self.alignMode() & Qt.AlignLeft:
self._bounding_rect.moveLeft(0)
elif self.alignMode() & Qt.AlignRight:
self._bounding_rect.moveRight(0)
else:
self._bounding_rect.moveLeft(-self._bounding_rect.width() / 2)
# Set background rect
self.background.setRect(self.boundingRect())
def boundingRect(self) -> QRectF:
return self._bounding_rect
def paint(self, painter: QPainter, option, widget=...) -> None:
painter.setBrush(self.brush())
painter.setPen(self.pen())
painter.setFont(self.font())
painter.drawText(self.boundingRect(), self.alignMode(),
self.elidedText())
class QScene2dViewer(AbstractGraphicViewer):
drawaxis = False
axis_center = None
axis_x = None
axis_y = None
G = None
def __init__(self, G):
super().__init__()
self.G = G
# self.setMinimunSize(400, 400)
self.scale(1, -1)
# AXIS
self.axis_center = QGraphicsRectItem(-100, -100, 200, 200)
self.axis_center.setPen(QPen(QColor("black")))
self.axis_center.setBrush(QBrush(QColor("black")))
self.axis_center.setZValue(5000)
self.axis_x = QGraphicsRectItem(0, 0, 1000, 30)
self.axis_x.setPen(QPen(QColor("red")))
self.axis_x.setBrush(QBrush(QColor("red")))
self.axis_x.setZValue(5000)
self.axis_y = QGraphicsRectItem(0, 0, 30, 1000)
self.axis_y.setPen(QPen(QColor("blue")))
self.axis_y.setBrush(QBrush(QColor("blue")))
self.axis_y.setZValue(5000)
self.set_draw_axis(True)
self.draw_axis()
def create_graph(self):
pass
def set_draw_axis(self, visible):
self.drawaxis = visible
def draw_axis(self):
if self.drawaxis:
self.scene.addItem(self.axis_center)
self.scene.addItem(self.axis_x)
self.scene.addItem(self.axis_y)
else:
self.scene.removeItem(self.axis_center)
self.scene.removeItem(self.axis_x)
self.scene.removeItem(self.axis_y)
# SLOTS
def add_or_assign_node_slot(self, node_id, node_type, name=""):
pass
def add_or_assign_node_slot(self, node_id, node):
pass
def add_or_assign_edge_slot(self, from_node, to_node, node_type):
pass
def del_edge_slot(self, from_node, to_node, edge_tag):
pass
def del_node_slot(self, node_id):
pass
def node_change_slot(self, value, node_id, node_type, parent=None):
pass
def category_change_slot(self, value, parent=None):
pass
