Class: VRRichedit

Inherits:
VRText show all
Defined in:
lib/vr/vrrichedit.rb

Defined Under Namespace

Modules: EventMaskConsts Classes: EventMask

Constant Summary collapse

CFM_BOLD =

VRRichedit

This class represents RichEdit Control. The parent class is VRText and this also has the same methods and event handlers.

Overwritten Methods

These methods are overwritten to support over64k texts. — getSel — setSel(st,en,noscroll=0) — char2line(ptr)

Methods

— setTextFont(fontface,height=280,area=SCF_SELECTION)

Sets the text font. ((|area|)) parameter limits the changed area.

— getTextFont(selarea=true)

Gets the text font and its size of the area. 
If selarea is true, the area is the selected area and the other case, 
it means the default font.

— setTextColor(col,area=SCF_SELECTION)

Sets the color of the text in the area.

— getTextColor(selarea=true)

Gets the text color in the area which is same as ((<getTextFont>)).

— setBold(flag=true,area=SCF_SELECTION)

Sets or resets the text style into BOLD.
When ((|flag|)) is true, the text is set to bold style.

— setItalic(flag=true,area=SCF_SELECTION)

Sets or resets the text style into ITALIC.

— setUnderlined(flag=true,area=SCF_SELECTION)

Sets or resets the text style into UNDERLINED.

— setStriked(flag=true,area=SCF_SELECTION)

Sets or resets the text style into STRIKE_OUT.

— bold?(selarea=true)

Inspects whether the text style in the area is bold or not.
If ((|selarea|)) is true, the area is selected area.

— italic?(selarea=true)

Inspects whether the text style in the area is italic or not.

— underlined?(selarea=true)

Inspects whether the text style in the area is underlined or not.

— striked?(selarea=true)

Inspects whether the text style in the area is striked out or not.

— setAlignment(align)

Sets text alignment of current paragraph. ((|align|)) can be PFA_LEFT,
PFA_RIGHT or PFA_CENTER of VRRichedit constansts.

— bkcolor=(color)

Sets the background color of the control.

— selformat(area=SCF_SELECTION)

Gets the text format in ((|area|)). The return value is an instance of 
FontStruct defined in rscutil.rb.

— selformat=(format)

Set the text format in the selected area. ((|format|)) must be an instance
of FontStruct.

0x00000001
CFM_ITALIC = 
0x00000002
CFM_UNDERLINE = 
0x00000004
CFM_STRIKEOUT = 
0x00000008
CFM_PROTECTED = 
0x00000010
0x00000020
CFM_SIZE = 
0x80000000
CFM_COLOR = 
0x40000000
CFM_FACE = 
0x20000000
CFM_OFFSET = 
0x10000000
CFM_CHARSET = 
0x08000000
CFE_BOLD = 
0x0001
CFE_ITALIC = 
0x0002
CFE_UNDERLINE = 
0x0004
CFE_STRIKEOUT = 
0x0008
CFE_PROTECTED = 
0x0010
0x0020
CFE_AUTOCOLOR = 
0x40000000
SCF_SELECTION = 
0x0001
SCF_WORD = 
0x0002
SCF_DEFAULT = 
0x0000
SCF_ALL =

not valid with SCF_SELECTION or SCF_WORD

0x0004
SCF_USEUIRULES = 
0x0008
PFA_LEFT = 
0x0001
PFA_RIGHT = 
0x0002
PFA_CENTER = 
0x0003
PFM_STARTINDENT = 
0x00000001
PFM_RIGHTINDENT = 
0x00000002
PFM_OFFSET = 
0x00000004
PFM_ALIGNMENT = 
0x00000008
PFM_TABSTOPS = 
0x00000010
PFM_NUMBERING = 
0x00000020
PFM_OFFSETINDENT = 
0x80000000
CHARFORMATSIZE = 
60
MAX_TAB_STOPS = 
32
DEFAULTTABS = 
[4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76]

Constants inherited from VRText

VRText::WINCLASSINFO

Constants inherited from VREdit

VREdit::VR_REGEXPNEWLINE, VREdit::WINCLASSINFO

Constants inherited from VRControl

VRControl::WINCLASSINFO

Instance Attribute Summary

Attributes inherited from VRControl

#handlers, #name, #parent

Attributes inherited from VRWinComponent

#parent, #screen

Instance Method Summary collapse

Methods inherited from VRText

#countLines, #getCurrentLine, #getLineLengthOf, #getLineTextOf, #line2char, #scrollTo, #scrolldown, #scrolldownPage, #scrolltocaret, #scrollup, #scrollupPage, #visibleStartLine

Methods inherited from VREdit

#clear, #copy, #cut, #limit, #limit=, #modified, #modified=, #paste, #readonly=, #replaceSel, #setCaret, #text=, #undo, #vrinitnew

Methods inherited from VRStdControl

#_vr_cmdhandlers, #addCommandHandler, #deleteCommandHandler

Methods inherited from VRControl

#add_parentcall, #call_parenthandler, #create, #setFont

Methods inherited from VRWinComponent

#_init, #create, #exwinstyle, #hide, #maximizebox, #maximizebox=, #minimizebox, #minimizebox=, #setscreen, #sizebox, #sizebox=, #tabstop, #tabstop=, #winstyle

Instance Method Details

#bkcolor=(col) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 322

def bkcolor=(col)
  if col then
    sendMessage WMsg::EM_SETBKGNDCOLOR,0,col.to_i
  else
    sendMessage WMsg::EM_SETBKGNDCOLOR,1,0
  end
end

#bold?(selarea = true) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vr/vrrichedit.rb', line 282

def bold?(selarea=true)
  r=getcharformat(CFM_BOLD,selarea)[2]
  if (r&CFE_BOLD)==0 then false else true end
end

#char2line(pt) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 243

def char2line(pt)
  sendMessage WMsg::EM_EXLINEFROMCHAR,0,pt
end

#eventmask ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 330

def eventmask
  EventMask.new(self)
end

#getcharformat(mask = 0xf800003f, selectionarea = true) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 208

def getcharformat(mask=0xf800003f,selectionarea=true)
  buffer = [CHARFORMATSIZE,0,0,0,0,0].pack("LLLLLL")
  buffer += "\0"* (CHARFORMATSIZE-buffer.length)
  f = (selectionarea)? 1 : 0
  sendMessage WMsg::EM_GETCHARFORMAT,f,buffer
  return buffer.unpack("LLLLLLCC") << buffer[26..-2].delete("\0")
end

#getSel ⇒ Object

## ## ##



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# File 'lib/vr/vrrichedit.rb', line 230

def getSel
  charrange = [0,0].pack("LL")
  sendMessage WMsg::EM_EXGETSEL,0,charrange
  return charrange.unpack("LL")
end

#getTextColor(selarea = true) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 258

def getTextColor(selarea=true)
  getcharformat(CFM_COLOR,selarea)[5]
end

#getTextFont(selarea = true) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 250

def getTextFont(selarea=true)
  r=getcharformat(CFM_FACE|CFM_SIZE,selarea)
  return r[3],r[8]
end

#italic?(selarea = true) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vr/vrrichedit.rb', line 286

def italic?(selarea=true)
  r=getcharformat(CFM_ITALIC,selarea)[2]
  if (r&CFE_ITALIC)==0 then false else true end
end

#richeditinit ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 181

def richeditinit
  sendMessage WMsg::EM_SETLANGOPTIONS,0,0
  eventmask.enm_change=true
end

#selformat(option = SCF_SELECTION) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 313

def selformat(option=SCF_SELECTION)
  r=getcharformat(option)
  weight = if (r[2] & 1)>0 then 600 else 300 end
  style = (r[2]/2) & 0xf  #mask 
  width = r[3]/2          # tekitou....
  point = r[3]/2
  FontStruct.new2([r[8],r[3],style,weight,width,0,0,r[7],r[6]],point,r[5])
end

#selformat=(f) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 303

def selformat=(f)
  raise "format must be an instance of FontStruct" unless f.is_a?(FontStruct)
  effects = f.style*2 + if f.weight>400 then 1 else 0 end
  height = if f.height>0 then f.height else f.point*2 end
  offset=0
  setcharformat SCF_SELECTION,effects,f.color,0xf800003f,f.fontface,height,
                offset,f.pitch_family,f.charset
  f
end

#setAlignment(align) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 299

def setAlignment(align)
  setparaformat(PFM_ALIGNMENT,false,0,0,0,align)
end

#setBold(flag = true, area = SCF_SELECTION) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 262

def setBold(flag=true,area=SCF_SELECTION)
  f = (flag)? CFE_BOLD : 0
  setcharformat(area,f,0,CFM_BOLD)
end

#setcharformat(area, effects, col = 0, mask = 0xf800003f, font = "System", height = 280, off = 0, pf = 2, charset = 128) ⇒ Object

parameter order is not the same of the return value of getcharformat()



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# File 'lib/vr/vrrichedit.rb', line 199

def setcharformat(area,effects,col=0,mask=0xf800003f,
                 font="System",height=280,off=0,pf=2,charset=128)
  buffer = [CHARFORMATSIZE,mask,effects,
            height,off,col,charset,pf].pack("LLLLLLCC")
  buffer += font.to_s + "\0"
  buffer += "\0"*(CHARFORMATSIZE-buffer.length)
  sendMessage(WMsg::EM_SETCHARFORMAT,area,buffer)
end

#setItalic(flag = true, area = SCF_SELECTION) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 267

def setItalic(flag=true,area=SCF_SELECTION)
  f = (flag)? CFE_ITALIC : 0
  setcharformat(area,f,0,CFM_ITALIC)
end

#setparaformat(mask = 0x8000003f, numbering = false, startindent = 0, rightindent = 0, offset = 0, align = PFA_LEFT, tabstops = DEFAULTTABS) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 216

def setparaformat(mask=0x8000003f,numbering=false,startindent=0,rightindent=0,
                  offset=0,align=PFA_LEFT,tabstops=DEFAULTTABS)
  size=4*7+4*MAX_TAB_STOPS
  fNumber= if numbering then 1 else 0 end
  tabcount = (tabstops.size>MAX_TAB_STOPS)? MAX_TAB_STOPS : tabstops.size

  buffer = [
    size,mask,fNumber,startindent,rightindent,offset,align,tabcount
  ].pack("LLLLLLII")
  buffer += tabstops.pack("L*")
  sendMessage WMsg::EM_SETPARAFORMAT,0,buffer
end

#setSel(st, en, noscroll = 0) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 235

def setSel(st,en,noscroll=0)
  charrange = [st,en].pack("LL")
  r=sendMessage WMsg::EM_EXSETSEL,0,charrange
  if(noscroll!=0 && noscroll) then
    scrolltocaret
  end
  return r
end

#setStriked(flag = true, area = SCF_SELECTION) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 277

def setStriked(flag=true,area=SCF_SELECTION)
  f = (flag)? CFE_STRIKEOUT : 0
  setcharformat(area,f,0,CFM_STRIKEOUT)
end

#setTextColor(col, area = SCF_SELECTION) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 255

def setTextColor(col,area=SCF_SELECTION)
  setcharformat(area,0,col,CFM_COLOR)
end

#setTextFont(fontface, height = 280, area = SCF_SELECTION) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 247

def setTextFont(fontface,height=280,area=SCF_SELECTION)
  setcharformat(area,0,0,CFM_FACE|CFM_SIZE,fontface,height)
end

#setUnderlined(flag = true, area = SCF_SELECTION) ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 272

def setUnderlined(flag=true,area=SCF_SELECTION)
  f = (flag)? CFE_UNDERLINE : 0
  setcharformat(area,f,0,CFM_UNDERLINE)
end

#striked?(selarea = true) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vr/vrrichedit.rb', line 294

def striked?(selarea=true)
  r=getcharformat(CFM_STRIKEOUT,selarea)[2]
  if (r&CFE_STRIKEOUT)==0 then false else true end
end

#text ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 191

def text
  len=textlength+1
  buffer = "\0"*len
  sendMessage WMsg::WM_GETTEXT,len,buffer
  buffer[0..-2].gsub(/\r\n/,$/)
end

#underlined?(selarea = true) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vr/vrrichedit.rb', line 290

def underlined?(selarea=true)
  r=getcharformat(CFM_UNDERLINE,selarea)[2]
  if (r&CFE_UNDERLINE)==0 then false else true end
end

#vrinit ⇒ Object 



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# File 'lib/vr/vrrichedit.rb', line 186

def vrinit
  super
  richeditinit
end