clearer API for drawing a button

Dependencies

• [2] ZWDTEUH7 clean up some absolute coordinates
• [3] CUFW4EJL reorganize app.lua and its comments
• [4] PXSQR2AD hide line numbers from log browser
• [5] BW2IUB3K keep all text cache writes inside text.lua
• [6] ZTK4QTZT extract a couple of functions
• [7] OI4FPFIN support drawings in the source editor
• [8] NYRESFK6 source: show all files in navigator
• [9] 7CLGG7J2 test: autosave after any shape
• [10] AVTNUQYR basic test-enabled framework
• [11] GZ5WULJV switch source side to new screen-line-based render
• [12] ZQZX364V use a helper
• [13] C2M4RUU5 reorganize some comments
• [14] O2PYNFUB use existing local
• [15] 3QWK3GSA support mouse clicks in file navigator
• [16] XX7G2FFJ intermingle freehand line drawings with text
• [17] AD34IX2Z couple more tests
• [18] 3ZTODUBQ formatting
• [19] ZCTJPR6I pass all button params to the icon
• [20] KKMFQDR4 editing source code from within the app
• [21] DLBD4ZA6 wait, fix tests
• [22] WJBZZQE4 fold together two largely similar cases
• [23] PP2IIHL6 stop putting button state in a global
• [*] 2L5MEZV3 experiment: new edit namespace
• [*] 3QNOKBFM beginnings of a test harness

Change contents

• replacement in source_text.lua at line 37
  [5.869]→[5.869:969](∅→∅)
  − button(State, 'link', {x=State.left+lo, y=y, w=hi-lo, h=State.line_height, color={1,1,1},
  [5.869]

  [5.969]
  + button(State, 'link', {x=State.left+lo, y=y, w=hi-lo, h=State.line_height, bg={r=1,g=1,b=1},
• replacement in source_edit.lua at line 191
  [4.573]→[4.573:648](∅→∅)
  − button(State, 'draw', {x=buttonx, y=y+4, w=12,h=12, color={1,1,0},
  [4.573]

  [5.20384]
  + button(State, 'draw', {x=buttonx, y=y+4, w=12,h=12, bg={r=1,g=1,b=0},
• replacement in edit.lua at line 186
  [5.269]→[2.103:195](∅→∅)
  − button(State, 'draw', {x=State.left-Margin_left+4, y=y+4, w=12,h=12, color={1,1,0},
  [5.269]

  [5.330]
  + button(State, 'draw', {x=State.left-Margin_left+4, y=y+4, w=12,h=12, bg={r=1,g=1,b=0},
• replacement in commands.lua at line 119
  [5.206991]→[5.102:218](∅→∅)
  − button(Editor_state, 'menu', {x=x-5, y=y-2, w=width+5*2, h=Editor_state.line_height+2*2, color=colortable(color),
  [5.206991]

  [5.218]
  + button(Editor_state, 'menu', {x=x-5, y=y-2, w=width+5*2, h=Editor_state.line_height+2*2, bg=color,
• replacement in button.lua at line 15
  [5.296]→[5.2154:2230](∅→∅),[5.2154]→[5.2154:2230](∅→∅)
  − love.graphics.setColor(params.color[1], params.color[2], params.color[3])
  [5.296]

  [5.2230]
  + love.graphics.setColor(params.bg.r, params.bg.g, params.bg.b)
• edit in app.lua at line 369
  [5.541]→[5.1467:1472](∅→∅),[3.5233]→[5.1467:1472](∅→∅),[5.1467]→[5.1467:1472](∅→∅),[5.1472]→[3.5234:5327](∅→∅)
  − end

  −

  − function colortable(app_color)

  − return {app_color.r, app_color.g, app_color.b, app_color.a}