started objectifying add/update/view book form
This commit is contained in:
John Ladan
parent
d139e73abb
commit
725154ef26
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@ -0,0 +1,258 @@
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import curses
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class bookForm:
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mx = my = 0
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hl = 0
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topline = 0
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cursor = 0
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left = 0
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top = 2
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caption = "Add a Book"
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blabel = "Add"
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labels = ["ISBN", "LCCN", "Title", "Subtitle", "Authors", "Edition",
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"Publisher", "Publish Date", "Publish Year", "Publish Month", "Publish location",
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"Pages", "Pagination", "Weight"]
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entries = []
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def __init__(self,window):
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self.w = window
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self.w.resize(len(self.labels)+6,50)
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self.updateEntries({})
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self.updateGeometry()
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def updateGeometry(self):
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(self.my, self.mx) = self.w.getmaxyx()
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for l in self.labels:
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self.left = max(len(l),self.left)
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self.left += 4
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self.width = self.mx-self.left-2
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self.top = 2
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# next, the buttons
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self.bcol = [self.mx-len(self.blabel)-14, self.mx-len(self.blabel)-4]
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self.bwidth = [8,len(self.blabel)+2]
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def updateEntries(self,book)
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self.entries=[]
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for l in self.labels:
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if l.lower() in book:
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self.entries.append(book[l.lower()])
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else:
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self.entries.append("")
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def highlight(self):
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if bt = -1:
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self.w.chgat(self.row, self.left, self.width, curses.A_UNDERLINE)
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else:
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self.w.chgat(self.row, self.bcol[self.bt], self.bwidth[self.bt], curses.A_REVERSE)
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cursor = len(entries[highlight])
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w.move(r,m+cursor)
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curses.curs_set(1)
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row = self.hl-self.topline+self.top
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if row > 1 and row < self.my:
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self.w.chgat(row,0,self.mx,curses.A_REVERSE)
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def unHighlight(self):
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row = self.hl-self.topline+self.top
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if row > 1 and row < self.my:
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self.w.chgat(row,0,self.mx,curses.A_NORMAL)
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def mvHighlight(self,delta):
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new = self.hl+delta
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if self.hl = len(self.labels)+1: # skip cancel button when going up
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new -= 1
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new = max(new,0)
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new = min(new,len(self.labels)+1) # there are two buttons, so add 2 to length
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self.unHighlight()
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self.hl = new
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self.row = self.hl + self.top
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self.highlight()
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# items is a list of (label, value) pairs
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def redrawForm(w, caption, items, buttonlabel, m):
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(y,x)=w.getmaxyx()
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w.border()
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curses.curs_set(1)
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w.addstr(1,1,caption)
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r=3
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for l,v in items:
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c = m-len(l)-2
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w.addstr(r,c,l+":")
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w.addstr(r,m,v)
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r+=2
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w.addstr(r,x-len(buttonlabel)-len("<cancel>")-6, "<cancel> <"+buttonlabel+">")
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w.refresh()
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def lists_to_dict(l1, l2):
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book = {}
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for k,v in zip(l1,l2):
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if v!="" and k.lower()!="publish date":
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book[k.lower()]=v
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return book
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#the final form for book data entry - takes caption and book info.
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def bookForm(caption, book, buttonlabel):
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labels = ["ISBN", "LCCN", "Title", "Subtitle", "Authors", "Edition",
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"Publisher", "Publish Date", "Publish Year", "Publish Month", "Publish location",
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"Pages", "Pagination", "Weight"]
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entries = []
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m = 0
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w=curses.newwin(34,70,1,10)
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(y,x)=w.getmaxyx()
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w.keypad(1)
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redrawForm(w,caption,zip(labels,entries),buttonlabel,m)
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bcol = [x-len(buttonlabel)-len("<cancel>")-6, x-len(buttonlabel)-4]
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bwidth = [8,len(buttonlabel)+2]
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highlight=0
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b = -1
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r=3
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w.chgat(r,m,x-m-2,curses.A_UNDERLINE)
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w.move(r,m+len(entries[highlight]))
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cursor = len(entries[highlight])
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ch = w.getch()
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while (1==1):
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if ch==27: #escape key
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curses.curs_set(0)
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w.clear()
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w.refresh()
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return {}
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if ch==curses.KEY_UP:
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if highlight == len(labels):
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w.chgat(r,bcol[b],bwidth[b],curses.A_NORMAL)
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highlight = len(labels)-1
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b = -1
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r=3+2*highlight
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w.chgat(r,m,x-m-2,curses.A_UNDERLINE)
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cursor = len(entries[highlight])
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w.move(r,m+cursor)
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curses.curs_set(1)
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elif highlight!=0:
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w.chgat(r,m,x-m-2,curses.A_NORMAL)
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highlight -= 1
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r=3+2*highlight
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w.chgat(r,m,x-m-2,curses.A_UNDERLINE)
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cursor = len(entries[highlight])
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w.move(r,m+cursor)
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elif ch==curses.KEY_PPAGE:
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w.chgat(r,m,x-m-2,curses.A_NORMAL)
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highlight=0
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b=-1
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r=3+2*highlight
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w.chgat(r,m,x-m-2,curses.A_UNDERLINE)
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cursor = len(entries[highlight])
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w.move(r,m+cursor)
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curses.curs_set(1)
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elif ch==curses.KEY_DOWN:
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if highlight >= len(labels) -1:
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highlight = len(labels)
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b += 1
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b = min(b,1)
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curses.curs_set(0)
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w.chgat(r,m,x-m-2,curses.A_NORMAL)
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r = y-3
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w.chgat(r,bcol[b],bwidth[b],curses.A_REVERSE)
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else:
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w.chgat(r,m,x-m-2,curses.A_NORMAL)
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highlight += 1
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r=3+2*highlight
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w.chgat(r,m,x-m-2,curses.A_UNDERLINE)
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cursor = len(entries[highlight])
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w.move(r,m+cursor)
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elif ch==curses.KEY_NPAGE:
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if highlight!=len(labels):
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highlight = len(labels)
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b += 1
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b = min(b,1)
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curses.curs_set(0)
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w.chgat(r,m,x-m-2,curses.A_NORMAL)
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r = y-3
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w.chgat(r,bcol[b],bwidth[b],curses.A_REVERSE)
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elif ch==curses.KEY_LEFT:
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if highlight == len(labels):
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w.chgat(r,bcol[b],bwidth[b],curses.A_NORMAL)
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b=0
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w.chgat(r,bcol[b],bwidth[b],curses.A_REVERSE)
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else:
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if cursor>0:
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cursor-=1
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w.move(r,m+cursor)
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elif ch==curses.KEY_RIGHT:
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if highlight == len(labels):
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w.chgat(r,bcol[b],bwidth[b],curses.A_NORMAL)
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b=1
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w.chgat(r,bcol[b],bwidth[b],curses.A_REVERSE)
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else:
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if cursor < len(entries[highlight]):
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cursor+=1
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w.move(r,m+cursor)
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elif ch>31 and ch<127:
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if highlight != len(labels):
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entries[highlight]=entries[highlight][:cursor] + curses.keyname(ch) + entries[highlight][cursor:]
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cursor+=1
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w.addnstr(r,m, entries[highlight]+(" "*40), x-m-2)
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w.chgat(r,m,x-m-2,curses.A_UNDERLINE)
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w.move(r,m+cursor)
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elif ch==curses.KEY_BACKSPACE:
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if highlight != len(labels) and cursor!=0:
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cursor-=1
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entries[highlight]=entries[highlight][:cursor] + entries[highlight][cursor+1:]
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w.addnstr(r,m, entries[highlight]+(" "*40), x-m-2)
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w.chgat(r,m,x-m-2,curses.A_UNDERLINE)
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w.move(r,m+cursor)
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elif ch==curses.KEY_DC:
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if highlight != len(labels):
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entries[highlight]=entries[highlight][:cursor] + entries[highlight][cursor+1:]
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w.addnstr(r,m, entries[highlight]+(" "*40), x-m-2)
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w.chgat(r,m,x-m-2,curses.A_UNDERLINE)
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w.move(r,m+cursor)
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elif ch==curses.KEY_HOME:
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if highlight != len(labels):
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cursor=0
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w.move(r,m+cursor)
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elif ch==curses.KEY_END:
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if highlight != len(labels):
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cursor=len(entries[highlight])
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w.move(r,m+cursor)
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elif ch==10:
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if b != -1:
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if b == 0:
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w.clear()
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w.refresh()
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return {}
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elif b == 1:
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w.clear()
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w.refresh()
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return lists_to_dict(labels,entries)
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elif highlight == len(labels)-1:
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highlight = len(labels)
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b=0
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curses.curs_set(0)
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w.chgat(r,m,x-m-2,curses.A_NORMAL)
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r = y-3
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w.chgat(r,bcol[b],bwidth[b],curses.A_REVERSE)
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else:
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w.chgat(r,m,x-m-2,curses.A_NORMAL)
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highlight += 1
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r=3+2*highlight
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w.chgat(r,m,x-m-2,curses.A_UNDERLINE)
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cursor = len(entries[highlight])
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w.move(r,m+cursor)
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w.refresh()
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ch = w.getch()
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curses.curs_set(0)
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w.clear()
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w.refresh()
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return {}
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@ -15,7 +15,6 @@ class browserWindow:
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self.w = window
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self.updateGeometry()
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self.refreshBooks()
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self.w.keypad(1)
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def refreshBooks(self):
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self.books = db.getBooks()
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@ -79,17 +78,18 @@ class browserWindow:
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self.refresh()
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def startBrowser(self):
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self.w.keypad(1)
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self.refresh()
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ch = self.w.getch()
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while ch != 27 and ch != 113:
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if ch == curses.KEY_UP:
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if self.hl == self.topline:
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self.scroll(-self.pageSize/2)
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self.scroll(-self.pageSize/2-1)
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self.mvHighlight(-1)
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elif ch == curses.KEY_DOWN:
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if self.hl == self.topline+self.pageSize-1:
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self.scroll(+self.pageSize/2)
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self.scroll(+self.pageSize/2+1)
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self.mvHighlight(+1)
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elif ch == curses.KEY_PPAGE:
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self.scroll(-self.pageSize)
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@ -275,9 +275,6 @@ def browseMenu():
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w=curses.newwin(10,80,20,20)
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b = browser.browserWindow(w)
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b.startBrowser()
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w.box()
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w.refresh()
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w.getch()
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m = [("Browse Library", browseMenu),
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