Phase 1: all rows slide up together until selected row reaches y=0.
Phase 2: rows below selected row slide up as a group.
No per-row height scaling, only y-offset translation + fade.
Rows now keep full height and slide upward sequentially instead of
compressing. The anchor row (selected) moves to y=0 and stays fixed;
other rows exit top-to-bottom with staggered timing.
Apply consistent formatting: import ordering, line wrapping,
indentation, and XML normalization. No functional changes.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Non-selected rows now fade out with alpha = 1f - collapseProgress via
graphicsLayer, naturally following the spring animation curve. When
rowScale < 0.1f and collapseProgress > 0.9f, DayCell rendering is
skipped and replaced with an empty Spacer to reduce draw overhead at
the end of the collapse animation.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Move padding after onSizeChanged in CalendarMonthPage so row height
measurement excludes padding. Rename p→collapseProgress for clarity.
Add comments explaining grid height calculation and pager switching.
Increase ROW_PADDING_DP from 4 to 6.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
gridHeightPx changed from derivedStateOf to direct computation because
derivedStateOf cannot track non-State local variable changes, causing
gridHeightPx to not update when rowHeightPx transitions from 0 to measured value.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Move shared constants and helper functions into CalendarUtils.kt,
replace manual state synchronization with derivedStateOf in
CalendarViewModel and UI composables.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
- Remove unused currentWeeksCount variable and onWeeksChanged callback
- Replace deprecated monthNumber with month.number (requires explicit import)
- Remove all @Suppress("DEPRECATION") annotations for monthNumber
- Convert double comparison to range check (today in weekMonday..weekSunday)
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Use currentPage instead of settledPage for interpolatedWeeks calculation
to prevent gridH jumps during month transitions. When offsetFraction is
near zero, compute weeks from currentPage rather than stale callback
state. Remove all debug println statements and TAG constants.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Pass effectiveWeeks from CalendarMonthView through CalendarPager to
CalendarMonthPage so both use the same formula H*(1+(weeks-1)*(1-p)).
Fix interpolatedWeeks to anchor on settledPage instead of currentPage,
preventing direction/fraction discontinuity when currentPage jumps during
swipe transitions.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Replace the fragile approach of computing rowHeightPx by dividing
Column height by weeks count with direct measurement via onSizeChanged
on the first DayCell row. Add estimated row height fallback based on
screen width and cell aspect ratio so the pager can be constrained
before the first measurement completes. Remove lockedRowHeightPx,
expandedWeeksCount, and calendarHeightPx state variables that are no
longer needed.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Replace internal rowHeightPx measurement with external rowHeightPx
parameter passed from CalendarMonthView. This eliminates the mismatch
between outer gridHeightPx (based on shrinking container) and inner
totalHeightDp (based on independently measured row height), which was
causing visual jitter during collapse animation.
Remove onRowHeightMeasured callback, TAG constant, and debug printlns
from CalendarMonthPage as part of this refactor.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Calculate actual weeks needed per month and interpolate row count during
page swipe so BottomCard follows the grid height smoothly. Remove debug
println statements.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Select the Monday of the week when WeekPager changes, and the 1st of
the month when CalendarPager changes, so the selected date always
matches the visible page.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Switch CalendarMonthPage from Column to Box with calculated y positions per row,
enabling precise height computation that aligns with CalendarMonthView's
BottomCard positioning. Simplify cardTopPx calculation by deriving grid height
from the same formula instead of tracking expandedCalendarHeightPx separately.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Non-selected rows now compress their height proportionally with
collapse progress, replacing the previous overlay-based approach.
Remove KDoc that described the old overlay behavior.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Selected row now moves up via offset + zIndex to cover other rows, which
stay in place. Collapse offset calculation excludes MonthHeader and
WeekdayHeader heights so only the grid portion is collapsed.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
When rowHeightPx is 0 (first frame), use aspectRatio-based natural
height instead of collapsing to 0.dp, preventing a visible flash.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
- Add KDoc to all public Composable functions with parameter descriptions
- Add inline comments for non-obvious algorithms (42-cell grid, pager mapping)
- Add @Suppress reason comments for monthNumber deprecation
- Document collapseProgress range and physical meaning
- Add named constant comments for START_PAGE
- Add Preview name to App()
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Add isCollapsed/collapseProgress state to CalendarViewModel for toggling
between month and week views. CalendarMonthPage animates non-selected
weeks out with offset and alpha. Introduce WeekPager for single-week
HorizontalPager and BottomCard with drag-to-collapse gesture.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
