60dacf9c12
* Improve PDF rendering quality and performance. - Set `FilterQuality.High` when drawing base bitmaps and high-res tiles in `PdfPageComposable`. - Implement `inSampleSize` calculation in `UniversalDocument` to optimize memory usage during region decoding. - Enhance bitmap drawing quality by adding `ANTI_ALIAS_FLAG` and `DITHER_FLAG` to the paint configuration. * Implement custom reader themes for PDF viewer. This change integrates the `ReaderThemePanel` and theme management logic into the PDF viewer, allowing users to apply preset or custom themes. Previously, the PDF viewer only supported a simple dark mode toggle. Specific changes: - Moved `ReaderTheme`, `ReaderTexture`, and theme-related utility functions from `EpubReaderScreen.kt` to `Common.kt` to allow sharing between EPUB and PDF readers. - Updated `PdfPageComposable` to use `activeTheme` instead of `isDarkMode`, implementing a `ColorMatrix` to apply custom background and text colors to PDF pages. - Replaced the dark mode toggle in `PdfViewerScreen` with a theme selection button that opens `ReaderThemePanel`. - Introduced `PdfBuiltInThemes` to provide PDF-specific theme presets. * Reset page transformation on constraint changes and refine tile rendering logic. - Reset scale to 1.0 and offset to zero in `PdfPageComposable` when constraints change. - Update `UniversalDocument` to use floating-point precision for source rectangle calculations and `RectF` for destination mapping to improve rendering accuracy. * Improve eraser hit detection and visual thickness settings in PDF reader. |
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