Greg Pomerantz
620d534454
- StateReader interface in ui package (Scale(), ScreenWidth(), ScreenHeight()) - State implements StateReader - Renderer reads scale/window size via interface, never imports editor - State fields are private (screenWidth, screenHeight, scale) with accessor methods - No SetScale/SetWindowSize calls from main.go — Renderer reads from State directly
98 lines
2.7 KiB
Go
98 lines
2.7 KiB
Go
package editor
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import (
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"pad/internal/ui"
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)
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// State holds all application state owned by the logic goroutine.
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// All dimensions are in device-independent pixels (Dp).
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type State struct {
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screenWidth ui.Dp
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screenHeight ui.Dp
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scale float32 // pixels per DP, default 1.0
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Elems []ui.Element
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}
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// NewState creates a new State with initial editor layout.
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// screenWidth and screenHeight are in device-independent pixels (Dp).
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// scale defaults to 1.0 until updated by ScaleEvent.
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func NewState(screenWidth, screenHeight ui.Dp) *State {
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return &State{
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screenWidth: screenWidth,
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screenHeight: screenHeight,
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scale: 1.0,
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Elems: EditorLayout(screenWidth, screenHeight),
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}
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}
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// Scale returns the current scale factor (pixels per DP).
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func (s *State) Scale() float32 { return s.scale }
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// ScreenWidth returns the current screen width in Dp.
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func (s *State) ScreenWidth() ui.Dp { return s.screenWidth }
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// ScreenHeight returns the current screen height in Dp.
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func (s *State) ScreenHeight() ui.Dp { return s.screenHeight }
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// SetScale updates the scale factor and recomputes layout.
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func (s *State) SetScale(scale float32) {
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s.scale = scale
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s.Elems = EditorLayout(s.screenWidth, s.screenHeight)
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}
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// SetSize updates the screen dimensions and recomputes layout.
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func (s *State) SetSize(width, height ui.Dp) {
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s.screenWidth = width
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s.screenHeight = height
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s.Elems = EditorLayout(width, height)
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}
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// EditorLayout computes regions for the editor page.
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// It takes screen dimensions in Dp and returns []Element with regions in Dp.
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// This function works exclusively in Dp — no pixel conversions.
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func EditorLayout(screenWidth, screenHeight ui.Dp) []ui.Element {
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// Margin to avoid clipping on macOS round corners
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margin := ui.Dp(10)
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// Compute StatusBar region
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statusBarHeight := ui.Dp(48)
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statusBarRegion := ui.Region{
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X: margin,
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Y: margin,
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W: screenWidth - margin*2,
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H: statusBarHeight,
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}
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// Compute BottomBar region (fixed height, at bottom of screen)
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bottomBarHeight := ui.Dp(24)
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bottomBarY := screenHeight - margin - bottomBarHeight
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bottomBarRegion := ui.Region{
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X: margin,
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Y: bottomBarY,
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W: screenWidth - margin*2,
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H: bottomBarHeight,
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}
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// Create StatusBar with mocked filename
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statusBar := ui.NewStatusBar(
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statusBarRegion,
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"very_long_filename_that_does_not_fit_on_a_single_line_and_it_just_keeps_on_going_and_going_and_going_and_going_and_going.txt",
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false, // FilenameExp
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true, // CutCopy
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false, // Copy
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true, // Paste
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false, // ConflictIcon
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true, // Search
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)
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// Create BottomBar with mocked data
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bottomBar := ui.NewBottomBar(
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bottomBarRegion,
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"Ln 47, Col 12",
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"1024 / 50000",
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true, // WordWrap
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)
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return []ui.Element{statusBar, bottomBar}
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}
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