online contextual help

[?]

May 15, 2022, 10:55 PM

JS6JSYOTXVZRN4XN7TYDY4GCNCFQBSERBPXEJ2TR5A2ITA6JJT2QC

Dependencies

[2] FBDRL6LH delete points or shapes
[3] CXCAERTB icons for current_mode
[*] OTIBCAUJ love2d scaffold
[*] 2FMZNSD7 experiment: only show drawing borders when they can be edited
[*] JVRL5TWL store device-independent coordinates inside drawings
[*] ZD63LJ2T bugfix: keep the click to create a new drawing from creating a new shape in the drawing
[*] WDWXNW7V slightly strange way to move points
[*] H7OEU6WP experimental approach to combining keyboard and mouse while drawing

Change contents

edit in main.lua at line 97

[3.55]

[6.279]

if love.mouse.isDown('1') and love.keyboard.isDown('h') then
draw_help_with_mouse_pressed(line)
return
end
edit in main.lua at line 104

[7.501]

[8.78]

if line.show_help then
draw_help_without_mouse_pressed(line)
return
end
edit in main.lua at line 610

[2.974]

[9.1064]

end
elseif chord == 'C-h' and not love.mouse.isDown('1') then
local drawing = select_drawing_at_mouse()
if drawing then
drawing.show_help = true
edit in main.lua at line 616

[9.1072]

[10.482]

elseif chord == 'escape' and not love.mouse.isDown('1') then
local drawing = select_drawing_at_mouse()
if drawing then
drawing.show_help = false
end
edit in main.lua at line 902

[3.1086]

[3.1086]

end

function draw_help_without_mouse_pressed(drawing)
love.graphics.setColor(0,0.5,0)
love.graphics.rectangle('line', 16,drawing.y, drawingw,pixels(drawing.h))
local y = drawing.y+10
love.graphics.print("Things you can do:", 16+30,y)
y = y+15
love.graphics.print("* Press the mouse button to start drawing a "..current_shape_singular(), 16+30,y)
y = y+15
love.graphics.print("* Hover on a point and press 'ctrl+v' to start moving it,", 16+30,y)
y = y+15
love.graphics.print("then press the mouse button to finish", 16+30+bullet_indent(),y)
y = y+15
love.graphics.print("* Hover on a point or shape and press 'ctrl+d' to delete it", 16+30,y)
y = y+15
y = y+15
if current_mode ~= 'freehand' then
love.graphics.print("* Press 'ctrl+f' to switch to drawing freehand strokes", 16+30,y)
y = y+15
end
if current_mode ~= 'line' then
love.graphics.print("* Press 'ctrl+l' to switch to drawing lines", 16+30,y)
y = y+15
end
if current_mode ~= 'manhattan' then
love.graphics.print("* Press 'ctrl+m' to switch to drawing horizontal/vertical lines", 16+30,y)
y = y+15
end
if current_mode ~= 'circle' then
love.graphics.print("* Press 'ctrl+c' to switch to drawing circles/arcs", 16+30,y)
y = y+15
end
if current_mode ~= 'polygon' then
love.graphics.print("* Press 'ctrl+g' to switch to drawing polygons", 16+30,y)
y = y+15
end
end

function draw_help_with_mouse_pressed(drawing)
love.graphics.setColor(0,0.5,0)
love.graphics.rectangle('line', 16,drawing.y, drawingw,pixels(drawing.h))
local y = drawing.y+10
love.graphics.print("You're currently drawing "..current_shape_pluralized(), 16+30,y)
y = y+15
love.graphics.print('Things you can do now:', 16+30,y)
y = y+15
if current_mode == 'freehand' then
love.graphics.print('* Release the mouse button to finish drawing a freehand stroke', 16+30,y)
y = y+15
elseif current_mode == 'line' or current_mode == 'manhattan' then
love.graphics.print('* Release the mouse button to finish drawing a line', 16+30,y)
y = y+15
elseif current_mode == 'circle' then
if drawing.pending.mode == 'circle' then
love.graphics.print('* Release the mouse button to finish drawing a full circle', 16+30,y)
y = y+15
love.graphics.print("* Press 'a' to draw just an arc of a circle", 16+30,y)
else
love.graphics.print('* Release the mouse button to finish drawing an arc', 16+30,y)
end
y = y+15
elseif current_mode == 'polygon' then
love.graphics.print('* Release the mouse button to finish drawing a polygon', 16+30,y)
y = y+15
love.graphics.print("* Press 'p' to add a vertex to the polygon", 16+30,y)
y = y+15
end
y = y+15
if current_mode ~= 'line' then
love.graphics.print("* Press 'l' to switch to drawing lines", 16+30,y)
y = y+15
end
if current_mode ~= 'manhattan' then
love.graphics.print("* Press 'm' to switch to drawing horizontal/vertical lines", 16+30,y)
y = y+15
end
if current_mode ~= 'circle' then
love.graphics.print("* Press 'c' to switch to drawing circles/arcs", 16+30,y)
y = y+15
end
if current_mode ~= 'polygon' then
love.graphics.print("* Press 'g' to switch to drawing polygons", 16+30,y)
y = y+15
end
end

function current_shape_singular()
if current_mode == 'freehand' then
return 'freehand stroke'
elseif current_mode == 'line' then
return 'straight line'
elseif current_mode == 'manhattan' then
return 'horizontal/vertical line'
else
return current_mode
end
end

function current_shape_pluralized()
return current_shape_singular()..'s'
end

_bullet_indent = nil
function bullet_indent()
if _bullet_indent == nil then
local text = love.graphics.newText(love.graphics.getFont(), '* ')
_bullet_indent = text:getWidth()
end
return _bullet_indent