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CodeViewer.pb
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CodeViewer.pb
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;--------------------------------------------------------------------------------------------
; Copyright (c) Fantaisie Software. All rights reserved.
; Dual licensed under the GPL and Fantaisie Software licenses.
; See LICENSE and LICENSE-FANTAISIE in the project root for license information.
;--------------------------------------------------------------------------------------------
;
; Methods to create a readonly scintilla gadget for code display
; With the configured IDE colors
;
Global HighlightCodeViewer
Procedure CodeViewer_HighlightCallback(*StringStart.BYTE, Length, *Color, IsBold, TextChanged)
ScintillaSendMessage(HighlightCodeViewer, #SCI_SETSTYLING, Length, *Color)
EndProcedure
Procedure CodeViewer_UpdateHighlight(Gadget)
HighlightCodeViewer = Gadget
; re-highlight the text
Size = ScintillaSendMessage(Gadget, #SCI_GETTEXTLENGTH)
*Buffer = AllocateMemory(Size+1)
If *Buffer
ScintillaSendMessage(Gadget, #SCI_GETTEXT, Size+1, *Buffer)
ScintillaSendMessage(Gadget, #SCI_STARTSTYLING, 0, $FFFFFF)
HighlightingEngine(*Buffer, Size, 0, @CodeViewer_HighlightCallback(), 0)
FreeMemory(*Buffer)
EndIf
; update line numbers size (if enabled)
If ScintillaSendMessage(Gadget, #SCI_GETMARGINWIDTHN, 0) > 0
NbLines = ScintillaSendMessage(Gadget, #SCI_GETLINECOUNT, 0, 0)
If NbLines < 10 ; 2 digits minimum, as with the main code area
NbLines = 10
EndIf
Lines$ = "_" + RSet("9", Len(Str(NbLines)), "9")
ScintillaSendMessage(Gadget, #SCI_SETMARGINWIDTHN, 0, ScintillaSendMessage(Gadget, #SCI_TEXTWIDTH, #STYLE_LINENUMBER, ToAscii(Lines$)))
EndIf
EndProcedure
Procedure UpdateCodeViewer(Gadget)
If ScintillaSendMessage(Gadget, #SCI_GETMARGINWIDTHN, 0) > 0
LineNumbers = #True
Else
LineNumbers = #False
EndIf
; Gtk2 'Pango' need an "!" before the font name (else it will use GDK font)
;
CompilerIf #CompileLinuxGtk2
FontName$ = "!"+EditorFontName$
ScintillaSendMessage(Gadget, #SCI_STYLESETFONT, #STYLE_DEFAULT, ToAscii(FontName$))
CompilerElse
ScintillaSendMessage(Gadget, #SCI_STYLESETFONT, #STYLE_DEFAULT, ToAscii(EditorFontName$))
CompilerEndIf
ScintillaSendMessage(Gadget, #SCI_STYLESETSIZE, #STYLE_DEFAULT, EditorFontSize)
If EditorFontStyle & #PB_Font_Bold
ScintillaSendMessage(Gadget, #SCI_STYLESETBOLD, #STYLE_DEFAULT, 1)
Else
ScintillaSendMessage(Gadget, #SCI_STYLESETBOLD, #STYLE_DEFAULT, 0)
EndIf
If EditorFontStyle & #PB_Font_Italic
ScintillaSendMessage(Gadget, #SCI_STYLESETITALIC, #STYLE_DEFAULT, 1)
Else
ScintillaSendMessage(Gadget, #SCI_STYLESETITALIC, #STYLE_DEFAULT, 0)
EndIf
If EnableColoring
ScintillaSendMessage(Gadget, #SCI_STYLESETBACK, #STYLE_DEFAULT, Colors(#COLOR_GlobalBackground)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLECLEARALL, 0, 0) ; to make the background & font change effective!
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 1, Colors(#COLOR_NormalText)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 2, Colors(#COLOR_BasicKeyword)\DisplayValue)
If EnableKeywordBolding
; Gtk2 'Pango' need an "!" before the font name (else it will use GDK font)
;
CompilerIf #CompileLinuxGtk2
FontName$ = "!"+EditorBoldFontName$
ScintillaSendMessage(Gadget, #SCI_STYLESETFONT, 2, ToAscii(FontName$))
ScintillaSendMessage(Gadget, #SCI_STYLESETFONT, 14, ToAscii(FontName$))
CompilerElse
ScintillaSendMessage(Gadget, #SCI_STYLESETFONT, 2, ToAscii(EditorBoldFontName$))
ScintillaSendMessage(Gadget, #SCI_STYLESETFONT, 14, ToAscii(EditorBoldFontName$))
CompilerEndIf
ScintillaSendMessage(Gadget, #SCI_STYLESETSIZE, #STYLE_DEFAULT, EditorFontSize)
ScintillaSendMessage(Gadget, #SCI_STYLESETBOLD, 2, 1) ; Bold (no effect on linux, but maybe on windows later)
ScintillaSendMessage(Gadget, #SCI_STYLESETBOLD, 14, 1)
If EditorFontStyle & #PB_Font_Italic
ScintillaSendMessage(Gadget, #SCI_STYLESETITALIC, 2, 1)
ScintillaSendMessage(Gadget, #SCI_STYLESETITALIC, 14, 1)
EndIf
EndIf
If LineNumbers
ScintillaSendMessage(Gadget, #SCI_STYLESETBACK, #STYLE_LINENUMBER, Colors(#COLOR_LineNumberBack)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, #STYLE_LINENUMBER, Colors(#COLOR_LineNumber)\DisplayValue)
EndIf
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 3, Colors(#COLOR_Comment)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 4, Colors(#COLOR_Constant)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 5, Colors(#COLOR_String)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 6, Colors(#COLOR_PureKeyword)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 7, Colors(#COLOR_ASMKeyword)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 8, Colors(#COLOR_Operator)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 9, Colors(#COLOR_Structure)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 10, Colors(#COLOR_Number)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 11, Colors(#COLOR_Pointer)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 12, Colors(#COLOR_Separator)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 13, Colors(#COLOR_Label)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 14, Colors(#COLOR_CustomKeyword)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 15, Colors(#COLOR_Module)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, 16, Colors(#COLOR_BadBrace)\DisplayValue)
CompilerIf #CompileWindows
If Colors(#COLOR_Selection)\DisplayValue = -1 ; special accessibility scheme
ScintillaSendMessage(Gadget, #SCI_SETSELBACK, 1, GetSysColor_(#COLOR_HIGHLIGHT))
Else
ScintillaSendMessage(Gadget, #SCI_SETSELBACK, 1, Colors(#COLOR_Selection)\DisplayValue)
EndIf
If Colors(#COLOR_SelectionFront)\DisplayValue = -1
ScintillaSendMessage(Gadget, #SCI_SETSELFORE, 1, GetSysColor_(#COLOR_HIGHLIGHTTEXT))
Else
ScintillaSendMessage(Gadget, #SCI_SETSELFORE, 1, Colors(#COLOR_SelectionFront)\DisplayValue)
EndIf
CompilerElse
ScintillaSendMessage(Gadget, #SCI_SETSELBACK, 1, Colors(#COLOR_Selection)\DisplayValue)
ScintillaSendMessage(Gadget, #SCI_SETSELFORE, 1, Colors(#COLOR_SelectionFront)\DisplayValue)
CompilerEndIf
ScintillaSendMessage(Gadget, #SCI_SETCARETLINEBACK, Colors(#COLOR_CurrentLine)\DisplayValue, 0)
ScintillaSendMessage(Gadget, #SCI_SETCARETFORE, Colors(#COLOR_Cursor)\DisplayValue, 0)
If Colors(#COLOR_CurrentLine)\Enabled = 0 Or Colors(#COLOR_CurrentLine)\DisplayValue = Colors(#COLOR_GlobalBackground)\DisplayValue
ScintillaSendMessage(Gadget, #SCI_SETCARETLINEVISIBLE, 0, 0) ; disable the different color for the current line
Else
ScintillaSendMessage(Gadget, #SCI_SETCARETLINEVISIBLE, 1, 0) ; enable the different color for the current line
EndIf
Else ; Coloring Disabled
ScintillaSendMessage(Gadget, #SCI_STYLERESETDEFAULT, 0, 0)
ScintillaSendMessage(Gadget, #SCI_STYLESETBACK, #STYLE_DEFAULT, $FFFFFF)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, #STYLE_DEFAULT, $000000)
ScintillaSendMessage(Gadget, #SCI_STYLECLEARALL, 0, 0) ; to make the background & font change effective!
ScintillaSendMessage(Gadget, #SCI_SETCARETLINEBACK, $FFFFFF, 0)
ScintillaSendMessage(Gadget, #SCI_SETCARETFORE, $000000, 0)
CompilerIf #CompileWindows
ScintillaSendMessage(Gadget, #SCI_SETSELBACK, 1, GetSysColor_(#COLOR_HIGHLIGHT))
ScintillaSendMessage(Gadget, #SCI_SETSELFORE, 1, GetSysColor_(#COLOR_HIGHLIGHTTEXT))
CompilerElse
ScintillaSendMessage(Gadget, #SCI_SETSELBACK, 1, $C0C0C0)
ScintillaSendMessage(Gadget, #SCI_SETSELFORE, 1, $000000)
CompilerEndIf
If LineNumbers
ScintillaSendMessage(Gadget, #SCI_STYLESETBACK, #STYLE_LINENUMBER, $FFFFFF)
ScintillaSendMessage(Gadget, #SCI_STYLESETFORE, #STYLE_LINENUMBER, $000000)
EndIf
ScintillaSendMessage(Gadget, #SCI_SETCARETLINEVISIBLE, 0, 0) ; disable the different color for the current line
EndIf
ScintillaSendMessage(Gadget, #SCI_SETTABWIDTH, TabLength)
ScintillaSendMessage(Gadget, #SCI_SETUSETABS, RealTab)
CodeViewer_UpdateHighlight(Gadget)
EndProcedure
; Note: *Buffer must be null-terminated!
Procedure SetCodeViewer(Gadget, *Buffer, Encoding)
; set writable for the update
ScintillaSendMessage(Gadget, #SCI_SETREADONLY, 0)
If Encoding <> 0
ScintillaSendMessage(Gadget, #SCI_SETCODEPAGE, #SC_CP_UTF8)
Else
ScintillaSendMessage(Gadget, #SCI_SETCODEPAGE, 0)
EndIf
ScintillaSendMessage(Gadget, #SCI_SETTEXT, 0, *Buffer)
; back to readonly
ScintillaSendMessage(Gadget, #SCI_SETREADONLY, 1)
CodeViewer_UpdateHighlight(Gadget)
EndProcedure
Procedure CreateCodeViewer(Gadget, x, y, width, height, LineNumbers)
GadgetID = ScintillaGadget(Gadget, x, y, width, height, @EmptyScintillaCallback())
If Gadget = #PB_Any
Gadget = GadgetID
EndIf
InitCodeViewer(Gadget, LineNumbers)
ProcedureReturn GadgetID
EndProcedure
Procedure InitCodeViewer(Gadget, LineNumbers)
ScintillaSendMessage(Gadget, #SCI_CLEARCMDKEY, #SCK_TAB) ; to enable the window shortcuts
ScintillaSendMessage(Gadget, #SCI_CLEARCMDKEY, #SCK_RETURN)
ApplyWordChars(Gadget)
ScintillaSendMessage(Gadget, #SCI_SETMARGINWIDTHN, 1, 0)
If LineNumbers
; set to something > 0 to indicate that they are enabled
; see CodeViewer_UpdateHighlight()
ScintillaSendMessage(Gadget, #SCI_SETMARGINWIDTHN, 0, 16)
ScintillaSendMessage(Gadget, #SCI_SETMARGINTYPEN, 0, #SC_MARGIN_NUMBER)
EndIf
ScintillaSendMessage(Gadget, #SCI_SETREADONLY, 1)
UpdateCodeViewer(Gadget)
EndProcedure