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311 | class ComboBoxDrawer:
def __init__(self, style_inst: AYONStyle) -> None:
self.style_inst = style_inst
self.model = style_inst.model
@property
def _super(self):
"""Return proxy for calling QCommonStyle methods on style_inst."""
from ..style import AYONStyle as _AYONStyle
return super(_AYONStyle, self.style_inst)
@property
def base_class(self):
return {"QComboBox": QComboBox}
def register_drawers(self):
return {
enum_to_str(
QStyle.ControlElement,
QStyle.ControlElement.CE_ComboBoxLabel,
"QComboBox",
): self.draw_label,
enum_to_str(
QStyle.ComplexControl,
QStyle.ComplexControl.CC_ComboBox,
"QComboBox",
): self.draw_box,
enum_to_str(
QStyle.PrimitiveElement,
QStyle.PrimitiveElement.PE_PanelItemViewItem,
"QFrame",
): self.draw_panel_item_view_item,
enum_to_str(
QStyle.PrimitiveElement,
QStyle.PrimitiveElement.PE_FrameFocusRect,
"QFrame",
): do_nothing,
}
def register_sizers(self):
return {
enum_to_str(
QStyle.ContentsType,
QStyle.ContentsType.CT_ComboBox,
"QComboBox",
): self.combobox_size,
}
def get_fg_bg_colors(
self,
opt: QtWidgets.QStyleOptionComplex,
w: QComboBox,
) -> tuple[QColor, QColor]:
bg_color = opt.palette.color(
QPalette.ColorGroup.Active, QPalette.ColorRole.Base
)
fg_color = opt.palette.color(
QPalette.ColorGroup.Active, QPalette.ColorRole.ButtonText
)
inverted = getattr(w, "_inverted", False)
current_index = w.currentIndex()
if current_index >= 0:
item_color = w.itemData(
current_index, QtCore.Qt.ItemDataRole.ForegroundRole
)
if item_color is not None:
item_color = item_color.color()
fg_color = bg_color if inverted else item_color
bg_color = item_color if inverted else bg_color
return fg_color, bg_color
def draw_box(
self,
opt: QtWidgets.QStyleOptionComplex,
p: QPainter,
w: QComboBox | None = None,
):
if not isinstance(w, QComboBox):
return
_style = self.model.get_style(
"QComboBox", variant=getattr(w, "_variant_str", None)
)
_style.set_context(w)
style_bg_color = _style.get("background-color", None)
opt.palette.setBrush(
QPalette.ColorRole.Base,
QColor(style_bg_color)
if style_bg_color
else self.model.base_palette.base(),
)
_radius = _style.get("border-radius", 0)
if not w.isEditable():
fg_color, bg_color = self.get_fg_bg_colors(opt, w)
# Paint background with status color
rect = opt.rect
p.save()
p.setBrush(QBrush(bg_color))
p.setPen(QtCore.Qt.PenStyle.NoPen)
p.drawRoundedRect(rect, _radius, _radius)
p.restore()
# Draw expand_more arrow if show_chevron is True
show_chevron = getattr(w, "show_chevron", True)
if show_chevron:
arrow_rect = self._super.subControlRect(
QStyle.ComplexControl.CC_ComboBox,
opt,
QStyle.SubControl.SC_ComboBoxArrow,
w,
)
arrow_icon = get_icon("expand_more", fg_color)
if arrow_icon and not arrow_rect.isEmpty():
arrow_size = min(arrow_rect.width(), arrow_rect.height())
pixmap = arrow_icon.pixmap(arrow_size, arrow_size)
px = (
arrow_rect.x() + (arrow_rect.width() - arrow_size) // 2
)
py = (
arrow_rect.y()
+ (arrow_rect.height() - arrow_size) // 2
)
popup_open = bool(opt.state & QStyle.StateFlag.State_On)
if popup_open:
cx = px + arrow_size / 2
cy = py + arrow_size / 2
p.save()
p.translate(cx, cy)
p.rotate(180)
p.translate(-cx, -cy)
p.drawPixmap(px, py, pixmap)
p.restore()
else:
p.drawPixmap(px, py, pixmap)
# set pen for text drawing
p.setPen(fg_color)
else:
# editable combobox - IMPLEMENT ME
self._super.drawComplexControl(
QStyle.ComplexControl.CC_ComboBox, opt, p, w
)
def draw_label(
self,
opt: QStyleOptionComboBox,
p: QPainter,
w: QWidget,
):
if not isinstance(w, QComboBox):
return
_style = self.model.get_style(
"QComboBox", variant=getattr(w, "_variant_str", None)
)
_style.set_context(w)
icon_padding = _style.get("icon-padding", [4, 4])
text_padding = _style.get("text-padding", [1, 1])
fg_color, bg_color = self.get_fg_bg_colors(opt, w)
base_cls = self._super
edit_rect = base_cls.subControlRect(
QStyle.ComplexControl.CC_ComboBox,
opt,
QStyle.SubControl.SC_ComboBoxEditField,
w,
)
p.save()
p.setClipRect(edit_rect)
if opt.currentIcon:
mode = (
QIcon.Mode.Normal
if opt.state & QStyle.StateFlag.State_Enabled
else QIcon.Mode.Disabled
)
pixmap = opt.currentIcon.pixmap(opt.iconSize, mode)
icon_rect = QRect(edit_rect)
icon_rect.setWidth(opt.iconSize.width() + icon_padding[0])
icon_rect.setHeight(opt.iconSize.height() + icon_padding[1])
icon_rect = QStyle.alignedRect(
opt.direction,
Qt.AlignmentFlag.AlignLeft | Qt.AlignmentFlag.AlignVCenter,
icon_rect.size(),
edit_rect,
)
if opt.editable:
p.fillRect(
icon_rect, opt.palette.brush(QPalette.ColorRole.Base)
)
base_cls.drawItemPixmap(
p, icon_rect, Qt.AlignmentFlag.AlignCenter, pixmap
)
if opt.direction == Qt.LayoutDirection.RightToLeft:
edit_rect.translate(-icon_padding[0] - opt.iconSize.width(), 0)
else:
edit_rect.translate(opt.iconSize.width() + icon_padding[0], 0)
if opt.currentText and not opt.editable:
base_cls.drawItemText(
p,
edit_rect.adjusted(
text_padding[0],
-text_padding[1],
-text_padding[0],
text_padding[1],
),
QStyle.visualAlignment(
opt.direction,
Qt.AlignmentFlag.AlignLeft | Qt.AlignmentFlag.AlignVCenter,
),
opt.palette,
bool(opt.state & QStyle.StateFlag.State_Enabled),
opt.currentText,
)
p.restore()
def draw_panel_item_view_item(
self, option: QStyleOption, painter: QPainter, w: QWidget
):
cb = w.model().parent()
if cb and getattr(cb, "_inverted", False):
idx = option.index
if idx:
fgc = (
w.model().data(idx, Qt.ItemDataRole.ForegroundRole).color()
)
option.backgroundBrush.setColor(fgc)
else:
stl = self.model.get_style("QComboBox")
stl.set_context(w)
option.backgroundBrush.setColor(
QColor(stl["menu-background-color"])
)
self._super.drawPrimitive( # type: ignore
QStyle.PrimitiveElement.PE_PanelItemViewItem, option, painter, w
)
def combobox_size(
self,
contents_type: QStyle.ContentsType,
option: QStyleOption | None,
contents_size: QtCore.QSize,
widget: QWidget | None,
) -> QtCore.QSize:
from qtpy.QtCore import QSize
if not option or not isinstance(option, QStyleOptionComboBox):
return QSize()
style = self.model.get_style("QComboBox")
style.set_context(widget)
text_width = cb_height = 0
if isinstance(widget, QComboBox):
for i in range(widget.count()):
t_rect = option.fontMetrics.boundingRect(
widget.itemData(i, Qt.ItemDataRole.DisplayRole)
)
text_width = max(text_width, t_rect.width())
cb_height = max(cb_height, t_rect.height())
text_width += style["text-padding"][0] * 2
cb_height += style["text-padding"][1] * 2
icon_width = 0
if option.currentIcon:
icon_size = getattr(widget, "_icon_size", 0)
if icon_size == 0:
all_sizes = option.currentIcon.availableSizes()
icon_size = max(all_sizes[0].width(), all_sizes[0].height())
icon_width = icon_size + style["icon-padding"][0] * 2
icon_height = icon_size + style["icon-padding"][1] * 2
cb_height = max(cb_height, icon_height)
if text_width:
icon_width += style["text-padding"][0]
final_size = QSize(
text_width + icon_width,
min(getattr(widget, "_height", cb_height), cb_height),
)
return final_size
|