drop some unnecessary calls

Dependencies

• [2] TGHAJBES use line cache for drawings as well
• [3] XUGDTYW2 stop confusingly reading a global
• [4] Y4SPXCM3 bugfix: pagedown was sometimes bouncing up
• [5] M6TH7VSZ rip out notion of Line_width
• [6] ODLKHO7B switch to line index in a function
• [7] MYC7XR5Q bugfix: lines that aren't drawn from the start
• [8] K4OBZSHE add args to some functions
• [9] 5DOTWNVM right margin
• [10] QCPXQ2E3 add state arg to a few functions
• [11] FKNXK2OA switch to line index in a function
• [12] JY4VK7L2 rename
• [13] 4VKEE43Z bugfix
• [14] HYEAFRZ2 split mouse_pressed events between Text and Drawing
• [15] CVGE3SIG I feel confident now that page-down is working.
• [16] KURLAXXI clean up some prints
• [17] HGC5RGJP switch to line index in a function
• [18] ILOA5BYF separate data structure for each line's cache data
• [19] UV4EWOLY add args to some functions
• [20] 5FW7YOFT highlight selection while dragging
• [21] BOFNXP5G clicking now moves the cursor even on long, wrapped lines
• [22] LERERVPH keep one screen line of overlap on pagedown
• [23] NDHQN23G done passing left/right margins everywhere
• [24] 2H67P75X switch arg for a function
• [25] MXA3RZYK deduce left/right from state where possible
• [26] U52E2XZN fix a crash
• [27] OYXDYPGS get rid of debug variables
• [28] H2DPLWMV snapshot: wrapping long lines at word boundaries
• [29] CBPV5SSI stop handling nil screen_line_starting_pos everywhere
• [*] BULPIBEG beginnings of a module for the text editor

Change contents

• edit in text.lua at line 21
  [3.47]→[4.3821:3859](∅→∅),[4.807]→[4.3821:3859](∅→∅),[4.141]→[4.3821:3859](∅→∅),[4.3859]→[4.3:49](∅→∅),[4.1850]→[4.3:49](∅→∅),[4.49]→[4.103:109](∅→∅),[4.49]→[4.103:109](∅→∅),[4.135]→[4.103:109](∅→∅),[4.776]→[4.103:109](∅→∅),[4.103]→[4.103:109](∅→∅)
  − if line_cache.fragments == nil then

  − Text.compute_fragments(State, line_index)

  − end
• edit in text.lua at line 704
  [2.1078]→[4.5600:5638](∅→∅),[4.5600]→[4.5600:5638](∅→∅),[4.5638]→[4.733:779](∅→∅),[4.35]→[4.733:779](∅→∅),[4.668]→[4.80:86](∅→∅),[4.779]→[4.80:86](∅→∅),[4.1844]→[4.80:86](∅→∅),[4.3150]→[4.80:86](∅→∅),[4.80]→[4.80:86](∅→∅)
  − if line_cache.fragments == nil then

  − Text.compute_fragments(State, line_index)

  − end