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base: update text_layout.krk

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K. Lange 2023-04-08 18:08:41 +09:00
parent 74fe7f9e20
commit 9d71cee16b
1 changed files with 126 additions and 35 deletions
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161
base/home/local/text_layout.krk
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@ -1,7 +1,7 @@
#!/bin/kuroko
from _yutani2 import (YutaniCtx, Font, rgb, rgb, MenuBar, decor_get_bounds, decor_render,
MenuList, MenuEntry, MenuEntrySeparator, Message, decor_handle_event, decor_show_default_menu,
MenuEntryCustom)
MenuEntryCustom, Sprite, Subregion, TTContour, TransformMatrix, MenuEntrySubmenu)
from yutani_mainloop import Window, yctx as y, AsyncMainloop, Task, sleep
import math
@ -9,25 +9,67 @@ import random
let mainloop = AsyncMainloop()
def premul(r,g,b,a):
return rgb(int(r*a),int(g*a),int(b*a),a)
let show_ascent = True
def toggle_ascent(self):
show_ascent = !show_ascent
self.update_icon('check' if show_ascent else None)
let font_size = 16
class Word:
def __init__(self, x, y, word, w, sw):
def __init__(self, x, y, word, w, sw, font):
self.x = x
self.y = y
self.word = word
self.w = w
self.sw = sw
self.font = font
self.asc, self.desc, self.gap = font.measure()
def draw(self, ctx):
if show_ascent:
let bas = TTContour(self.x+0.5, self.y+0.5)
bas.line_to(self.x+0.5+self.w,self.y+0.5)
let bas_s = bas.stroke(0.5)
bas_s.paint(ctx, premul(0,255,0,0.5))
bas_s.free()
bas.free()
let asc = TTContour(self.x+0.5, self.y+0.5)
asc.line_to(self.x+0.5,self.y+0.5-self.asc)
asc.line_to(self.x+0.5+self.w,self.y+0.5-self.asc)
asc.line_to(self.x+0.5+self.w,self.y+0.5)
let asc_s = asc.stroke(0.5)
asc_s.paint(ctx, premul(255,0,0,0.5))
asc_s.free()
asc.free()
let des = TTContour(self.x+0.5,self.y+0.5)
des.line_to(self.x+0.5,self.y+0.5-self.desc)
des.line_to(self.x+0.5+self.w,self.y+0.5-self.desc)
des.line_to(self.x+0.5+self.w,self.y+0.5)
let des_s = des.stroke(0.5)
des_s.paint(ctx,premul(0,0,255,0.5))
des_s.free()
des.free()
self.font.draw_string(ctx, self.word, self.x, self.y)
class Line:
def __init__(self, x, y, cw):
def __init__(self, x, y, cw, justify='center'):
self.words = []
self.x = x
self.y = y
self.cw = cw
self.justify = "center"
self.justify = justify
self.islast = True
def add(self, word, w, sw):
self.words.append(Word(self.x, self.y, word, w, sw))
def add(self, word, w, sw, font):
self.words.append(Word(self.x, self.y, word, w, sw, font))
def finalize(self):
if self.justify == "right":
@ -54,32 +96,35 @@ class Line:
word.x = _x
_x += word.w + word.sw
def premul(r,g,b,a):
return rgb(int(r*a),int(g*a),int(b*a),a)
def draw(self, ctx):
for word in self.words:
word.draw(ctx)
def layout_and_draw(ctx, text):
def layout_and_draw(ctx, text, justify='center'):
let lines = []
let base_x = 9
let left_padding = 10
let right_padding = 10
let base_x = left_padding
let x = base_x
let cw = ctx.width - 9 - base_x
let font = Font("sans-serif", 16)
let cw = ctx.width - left_padding - right_padding
let font = Font("sans-serif", font_size)
let asc, desc, gap = font.measure()
let lh = int(16 * 1.2)
let lh = int(font_size * 1.2)
let lb = int((lh - int(asc - desc)) / 2)
let y = 57 + lb + int(asc)
let line = Line(x, y, cw)
let y = lb + int(asc)
let line = Line(x, y, cw, justify)
for word in text.split(' '):
let w = font.width(word)
if w + x >= ctx.width - 9:
if w + x >= cw:
line.islast = False
line.finalize()
lines.append(line)
x = base_x
y += lh
line = Line(x, y, cw)
line = Line(x, y, cw, justify)
let sw = font.width(' ')
line.add(word, w, sw)
line.add(word, w, sw, font)
x += w + sw
if line.words:
@ -87,38 +132,70 @@ def layout_and_draw(ctx, text):
lines.append(line)
for line in lines:
for word in line.words:
ctx.rect(word.x, int(word.y - asc), word.w, word.y - int(word.y - asc), premul(255,0,0,0.25))
ctx.rect(word.x, word.y, word.w, -int(desc), premul(0,0,255,0.25))
font.draw_string(ctx, word.word, word.x, word.y)
class BlockElement:
pass
class InlineElement:
pass
line.draw(ctx)
#let sub = Subregion(ctx, 200, 200, 200, 200)
#sub.fill(rgb(255,255,0))
def set_menu(menu, action):
for sibling in menu.group:
sibling.update_icon(None)
menu.update_icon('check')
action()
def check_list(entries, default=0):
let ml = MenuList()
let group = []
for i, e in enumerate(entries):
let name, action = e
let me = MenuEntry(name, lambda menu: set_menu(menu, action), "check" if i == default else None)
me.group = group
group.append(me)
ml.insert(me)
return ml
class MyWindow(Window):
def __init__(self):
super().__init__(640, 480, title="Hello", doublebuffer=True)
self.bgc = rgb(255,255,255)
self.dejavu = Font("sans-serif", 13)
self.mb = MenuBar((("File",'file'),("Help",'help')))
self.mb = MenuBar((("File",'file'),("View",'view'),("Help",'help')))
let _menu_File = MenuList()
_menu_File.insert(MenuEntry("Test", lambda menu: print("hello, world")))
_menu_File.insert(MenuEntrySeparator())
_menu_File.insert(MenuEntry("Quit", lambda menu: self.close()))
self.mb.insert('file', _menu_File)
let _menu_View = MenuList()
let _menu_View_Justify = check_list((
('Left', lambda: self.set_justification('left')),
('Right', lambda: self.set_justification('right')),
('Center', lambda: self.set_justification('center')),
('Justify', lambda: self.set_justification('justify')),
), default=2)
self.mb.insert('view-justify', _menu_View_Justify)
_menu_View.insert(MenuEntrySubmenu('Justify','view-justify'))
let _menu_View_Size = check_list((
(lambda x=y: (str(x), lambda: font_size = x))() for y in [8,12,16,32,64]
), default=2)
self.mb.insert('view-size', _menu_View_Size)
_menu_View.insert(MenuEntrySubmenu('Font size', 'view-size'))
_menu_View.insert(MenuEntry('Show ascent/descent',toggle_ascent,icon='check'))
self.mb.insert('view', _menu_View)
let _menu_Help = MenuList()
let _menu_Help_help = MenuEntry("Help",lambda menu: print("oh no!"))
_menu_Help.insert(_menu_Help_help)
self.mb.insert('help', _menu_Help)
self.mb.callback = lambda x: self.draw()
self.justification = 'center'
self.cursor = 1,1
def set_justification(self, justify):
self.justification = justify
self.draw()
def draw(self):
self.fill(self.bgc)
@ -126,22 +203,30 @@ class MyWindow(Window):
let bounds = decor_get_bounds(self)
self.mb.place(bounds['left_width'],bounds['top_height'],self.width-bounds['width'],self)
self.mb.render(self)
#layout_and_draw(self, "This is some long text. It goes on and on. It has many words. It may wrap to another line. I hope it does. That would be what I want it to do.")
layout_and_draw(self, "Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small unregarded yellow sun.")
self.mb.height = 24 # Compatibility
#let layout = Layout("Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small unregarded yellow sun.", width=self.width)
let sprite = Sprite(width=self.width-bounds['width'],height=self.height-bounds['height']-self.mb.height)
sprite.fill(rgb(255,255,255))
layout_and_draw(sprite, "Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small unregarded yellow sun.", self.justification)
#layout.draw(sprite)
self.draw_sprite(sprite,bounds['left_width'],bounds['top_height']+self.mb.height)
sprite.free()
self.flip()
def mouse_event(self, msg):
let decResponse = decor_handle_event(msg)
if decResponse == 2:
print("Close me?")
self.close()
return True
else if decResponse == 5:
decor_show_default_menu(self, self.x + msg.new_x, self.y + msg.new_y)
self.mb.mouse_event(self, msg)
let nc = msg.new_x, msg.new_y
if nc != self.cursor:
self.cursor = nc
self.draw()
def keyboard_event(self, msg):
print(msg.keycode)
if msg.keycode == 113 and msg.action == 1:
self.close()
@ -155,6 +240,12 @@ class MyWindow(Window):
def menu_close(self):
self.draw()
def finish_resize(self, msg):
if msg.width < 100 or msg.height < 100:
self.resize_offer(100 if msg.width < 100 else msg.width, 100 if msg.height < 100 else msg.height)
return
super().finish_resize(msg)
let w = MyWindow()
w.move(200,200)
w.draw()