pax/booru-viewer
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Code Issues Releases 18 Activity

add thumbnail fade-in animation

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pax 2026-04-10 18:18:17 -05:00
parent 5261fa176d
commit faf9657ed9
1 changed files with 20 additions and 2 deletions
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22
booru_viewer/gui/grid.py
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@ -4,7 +4,7 @@ from __future__ import annotations
from pathlib import Path from pathlib import Path
from PySide6.QtCore import Qt, Signal, QSize, QRect, QRectF, QMimeData, QUrl, QPoint, Property from PySide6.QtCore import Qt, Signal, QSize, QRect, QRectF, QMimeData, QUrl, QPoint, Property, QPropertyAnimation, QEasingCurve
from PySide6.QtGui import QPixmap, QPainter, QPainterPath, QColor, QPen, QKeyEvent, QWheelEvent, QDrag, QMouseEvent from PySide6.QtGui import QPixmap, QPainter, QPainterPath, QColor, QPen, QKeyEvent, QWheelEvent, QDrag, QMouseEvent
from PySide6.QtWidgets import ( from PySide6.QtWidgets import (
QWidget, QWidget,
@ -65,6 +65,13 @@ class ThumbnailWidget(QWidget):
def _set_idle_color(self, c): self._idle_color = QColor(c) if isinstance(c, str) else c def _set_idle_color(self, c): self._idle_color = QColor(c) if isinstance(c, str) else c
idleColor = Property(QColor, _get_idle_color, _set_idle_color) idleColor = Property(QColor, _get_idle_color, _set_idle_color)
# Thumbnail fade-in opacity (0.0 → 1.0 on pixmap arrival)
def _get_thumb_opacity(self): return self._thumb_opacity
def _set_thumb_opacity(self, v):
self._thumb_opacity = v
self.update()
thumbOpacity = Property(float, _get_thumb_opacity, _set_thumb_opacity)
def __init__(self, index: int, parent: QWidget | None = None) -> None: def __init__(self, index: int, parent: QWidget | None = None) -> None:
super().__init__(parent) super().__init__(parent)
self.index = index self.index = index
@ -77,6 +84,7 @@ class ThumbnailWidget(QWidget):
self._drag_start: QPoint | None = None self._drag_start: QPoint | None = None
self._cached_path: str | None = None self._cached_path: str | None = None
self._prefetch_progress: float = -1 # -1 = not prefetching, 0-1 = progress self._prefetch_progress: float = -1 # -1 = not prefetching, 0-1 = progress
self._thumb_opacity: float = 0.0
# Seed selection colors from the palette so non-themed environments # Seed selection colors from the palette so non-themed environments
# (no custom.qss) automatically use the system highlight color. # (no custom.qss) automatically use the system highlight color.
# The qproperty setters above override these later when the QSS is # The qproperty setters above override these later when the QSS is
@ -97,7 +105,13 @@ class ThumbnailWidget(QWidget):
Qt.AspectRatioMode.KeepAspectRatio, Qt.AspectRatioMode.KeepAspectRatio,
Qt.TransformationMode.SmoothTransformation, Qt.TransformationMode.SmoothTransformation,
) )
self.update() self._thumb_opacity = 0.0
self._fade_anim = QPropertyAnimation(self, b"thumbOpacity")
self._fade_anim.setDuration(200)
self._fade_anim.setStartValue(0.0)
self._fade_anim.setEndValue(1.0)
self._fade_anim.setEasingCurve(QEasingCurve.Type.OutCubic)
self._fade_anim.start()
def set_selected(self, selected: bool) -> None: def set_selected(self, selected: bool) -> None:
self._selected = selected self._selected = selected
@ -182,7 +196,11 @@ class ThumbnailWidget(QWidget):
if self._pixmap: if self._pixmap:
x = (self.width() - self._pixmap.width()) // 2 x = (self.width() - self._pixmap.width()) // 2
y = (self.height() - self._pixmap.height()) // 2 y = (self.height() - self._pixmap.height()) // 2
if self._thumb_opacity < 1.0:
p.setOpacity(self._thumb_opacity)
p.drawPixmap(x, y, self._pixmap) p.drawPixmap(x, y, self._pixmap)
if self._thumb_opacity < 1.0:
p.setOpacity(1.0)
# Border drawn AFTER the pixmap. Plain rectangle (no rounding) so # Border drawn AFTER the pixmap. Plain rectangle (no rounding) so
# it lines up exactly with the pixmap's square edges — no corner # it lines up exactly with the pixmap's square edges — no corner