
import re
import sys

class ZoomHeight:

    menudefs = [
        ('windows', [
            ('_Zoom Height', '<<zoom-height>>'),
         ])
    ]

    windows_keydefs = {
        '<<zoom-height>>': ['<Alt-F2>'],
    }
    unix_keydefs = {
        '<<zoom-height>>': ['<Control-x><Control-z>'],
    }

    def __init__(self, editwin):
        self.editwin = editwin

    def zoom_height_event(self, event):
        top = self.editwin.top
        geom = top.wm_geometry()
        m = re.match(r"(\d+)x(\d+)\+(-?\d+)\+(-?\d+)", geom)
        if not m:
            top.bell()
            return
        width, height, x, y = map(int, m.groups())
        height = top.winfo_screenheight()
        if sys.platform == 'win32':
            y = 0
            height = height - 72
        else:
            y = 24
            height = height - 96
        newgeom = "%dx%d+%d+%d" % (width, height, x, y)
        if geom == newgeom:
            newgeom = ""
        top.wm_geometry(newgeom)


import re
import sys

class ZoomHeight:

    menudefs = [
        ('windows', [
            ('_Zoom Height', '<<zoom-height>>'),
         ])
    ]

    windows_keydefs = {
        '<<zoom-height>>': ['<Alt-F2>'],
    }
    unix_keydefs = {
        '<<zoom-height>>': ['<Control-x><Control-z>'],
    }

    def __init__(self, editwin):
        self.editwin = editwin

    def zoom_height_event(self, event):
        top = self.editwin.top
        geom = top.wm_geometry()
        m = re.match(r"(\d+)x(\d+)\+(-?\d+)\+(-?\d+)", geom)
        if not m:
            top.bell()
            return
        width, height, x, y = map(int, m.groups())
        newheight = top.winfo_screenheight()
        if sys.platform == 'win32':
            newy = 0
            newheight = newheight - 72
        else:
            newy = 24
            newheight = newheight - 96
        if height >= newheight:
            newgeom = ""
        else:
            newgeom = "%dx%d+%d+%d" % (width, newheight, x, newy)
        top.wm_geometry(newgeom)

Use only the height to decide whether to zoom in or out.
Use only the height to decide whether to zoom in or out.

  
  import re
  import sys
  
  class ZoomHeight:
  
      menudefs = [
          ('windows', [
              ('_Zoom Height', '<<zoom-height>>'),
           ])
      ]
  
      windows_keydefs = {
          '<<zoom-height>>': ['<Alt-F2>'],
      }
      unix_keydefs = {
          '<<zoom-height>>': ['<Control-x><Control-z>'],
      }
  
      def __init__(self, editwin):
          self.editwin = editwin
  
      def zoom_height_event(self, event):
          top = self.editwin.top
          geom = top.wm_geometry()
          m = re.match(r"(\d+)x(\d+)\+(-?\d+)\+(-?\d+)", geom)
          if not m:
              top.bell()
              return
          width, height, x, y = map(int, m.groups())
-         height = top.winfo_screenheight()
+         newheight = top.winfo_screenheight()
          if sys.platform == 'win32':
-             y = 0
+             newy = 0
-             height = height - 72
+             newheight = newheight - 72
          else:
-             y = 24
+             newy = 24
-             height = height - 96
+             newheight = newheight - 96
+         if height >= newheight:
-         newgeom = "%dx%d+%d+%d" % (width, height, x, y)
-         if geom == newgeom:
              newgeom = ""
+         else:
+             newgeom = "%dx%d+%d+%d" % (width, newheight, x, newy)
          top.wm_geometry(newgeom)
  
Use only the height to decide whether to zoom in or out.
## Code Before:

import re
import sys

class ZoomHeight:

    menudefs = [
        ('windows', [
            ('_Zoom Height', '<<zoom-height>>'),
         ])
    ]

    windows_keydefs = {
        '<<zoom-height>>': ['<Alt-F2>'],
    }
    unix_keydefs = {
        '<<zoom-height>>': ['<Control-x><Control-z>'],
    }

    def __init__(self, editwin):
        self.editwin = editwin

    def zoom_height_event(self, event):
        top = self.editwin.top
        geom = top.wm_geometry()
        m = re.match(r"(\d+)x(\d+)\+(-?\d+)\+(-?\d+)", geom)
        if not m:
            top.bell()
            return
        width, height, x, y = map(int, m.groups())
        height = top.winfo_screenheight()
        if sys.platform == 'win32':
            y = 0
            height = height - 72
        else:
            y = 24
            height = height - 96
        newgeom = "%dx%d+%d+%d" % (width, height, x, y)
        if geom == newgeom:
            newgeom = ""
        top.wm_geometry(newgeom)

## Instruction:
Use only the height to decide whether to zoom in or out.
## Code After:

import re
import sys

class ZoomHeight:

    menudefs = [
        ('windows', [
            ('_Zoom Height', '<<zoom-height>>'),
         ])
    ]

    windows_keydefs = {
        '<<zoom-height>>': ['<Alt-F2>'],
    }
    unix_keydefs = {
        '<<zoom-height>>': ['<Control-x><Control-z>'],
    }

    def __init__(self, editwin):
        self.editwin = editwin

    def zoom_height_event(self, event):
        top = self.editwin.top
        geom = top.wm_geometry()
        m = re.match(r"(\d+)x(\d+)\+(-?\d+)\+(-?\d+)", geom)
        if not m:
            top.bell()
            return
        width, height, x, y = map(int, m.groups())
        newheight = top.winfo_screenheight()
        if sys.platform == 'win32':
            newy = 0
            newheight = newheight - 72
        else:
            newy = 24
            newheight = newheight - 96
        if height >= newheight:
            newgeom = ""
        else:
            newgeom = "%dx%d+%d+%d" % (width, newheight, x, newy)
        top.wm_geometry(newgeom)
