forked from KolibriOS/kolibrios
618 lines
14 KiB
NASM
618 lines
14 KiB
NASM
;-----------------------------------------------------------------------------
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func clear_selection ;////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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push eax ebx
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mov eax,[cur_editor.SelStart.Y]
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mov ebx,[cur_editor.Caret.Y]
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cmp eax,ebx
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jle @f
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xchg eax,ebx
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@@: push [cur_editor.Caret.X] [cur_editor.Caret.Y]
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pop [cur_editor.SelStart.Y] [cur_editor.SelStart.X]
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pop ebx eax
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ret
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endf
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;-----------------------------------------------------------------------------
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func pt_in_rect ;/////////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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cmp eax,[ecx+0x0]
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jl @f
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cmp ebx,[ecx+0x4]
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jl @f
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cmp eax,[ecx+0x8]
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jg @f
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cmp ebx,[ecx+0xC]
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jg @f
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stc
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ret
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@@: clc
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ret
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endf
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;-----------------------------------------------------------------------------
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func check_bottom_right ;/////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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push eax
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mov eax,[cur_editor.TopLeft.Y]
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add eax,[lines.scr]
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cmp eax,[cur_editor.Lines.Count]
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jbe .lp1
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mov eax,[cur_editor.Lines.Count]
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sub eax,[lines.scr]
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jns @f
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xor eax,eax
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@@: mov [cur_editor.TopLeft.Y],eax
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.lp1: mov eax,[cur_editor.TopLeft.X]
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add eax,[columns.scr]
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cmp eax,[cur_editor.Columns.Count]
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jbe .exit
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mov eax,[cur_editor.Columns.Count]
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sub eax,[columns.scr]
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jns @f
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xor eax,eax
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@@: mov [cur_editor.TopLeft.X],eax
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.exit:
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pop eax
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ret
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endf
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;-----------------------------------------------------------------------------
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func get_real_length ;////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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movzx eax,word[esi]
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@@: cmp byte[esi+eax+4-1],' '
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jne @f
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dec eax
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jnz @b
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@@: ret
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endf
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;-----------------------------------------------------------------------------
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func get_line_offset ;////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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; Input:
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; ECX = line number
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; Output:
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; ESI = line data offset
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;-----------------------------------------------------------------------------
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push eax ecx
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mov esi,[cur_editor.Lines]
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@@: dec ecx
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js .exit
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movzx eax,word[esi]
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lea esi,[esi+eax+4]
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jmp @b
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.exit:
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pop ecx eax
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ret
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endf
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;-----------------------------------------------------------------------------
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func init_sel_vars ;//////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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pushad
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mov [sel.selected],1
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mov eax,[ebp+EDITOR.SelStart.X]
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mov ebx,[ebp+EDITOR.SelStart.Y]
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mov ecx,[ebp+EDITOR.Caret.X]
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mov edx,[ebp+EDITOR.Caret.Y]
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cmp ebx,edx
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jl .lp2
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jne @f
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cmp eax,ecx
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jl .lp2
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jne .lp1
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dec [sel.selected]
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jmp .lp2
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@@: xchg ebx,edx
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.lp1: xchg eax,ecx
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.lp2: mov [sel.begin.x],eax
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mov [sel.begin.y],ebx
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mov [sel.end.x],ecx
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mov [sel.end.y],edx
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popad
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ret
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endf
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;-----------------------------------------------------------------------------
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func get_scroll_vars ;////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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; Input:
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; EAX = maximum data size (units)
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; EBX = visible data size (units)
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; ECX = current data position (units)
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; EDX = scrolling area size (pixels)
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; Output:
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; EAX = srcoller offset (pixels)
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; EBX = scroller size (pixels)
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;-----------------------------------------------------------------------------
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push eax ebx edx
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; sub eax,ebx
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mov esi,eax
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mov eax,edx
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imul ebx
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idiv esi
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cmp eax,[esp]
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jge .null
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cmp eax,AMINS
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jge @f
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neg eax
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add eax,AMINS
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sub [esp],eax
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mov eax,AMINS
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@@: mov [esp+4],eax ; scroller size
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mov eax,[esp]
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imul ecx
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idiv esi
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or eax,eax
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jns @f
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xor eax,eax
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@@: mov [esp+8],eax ; scroller offset
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add eax,[esp+4]
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cmp eax,[esp]
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jle @f
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@@:
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pop edx ebx eax
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ret
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.null:
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mov dword[esp+4],0
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mov dword[esp+8],0
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jmp @b
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endf
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;-----------------------------------------------------------------------------
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func uint2strz ;//////////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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dec ebx
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jz @f
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xor edx,edx
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div ecx
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push edx
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call uint2strz
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pop eax
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@@: cmp al,10
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sbb al,$69
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das
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stosb
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ret
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endf
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;-----------------------------------------------------------------------------
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func uint2str ;///////////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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cmp eax,ecx
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jb @f
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xor edx,edx
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div ecx
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push edx
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call uint2str
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pop eax
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@@: cmp al,10
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sbb al,$69
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das
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stosb
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ret
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endf
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;-----------------------------------------------------------------------------
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func strlen ;/////////////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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push ebx
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mov ebx,eax
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xor eax,eax
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@@: cmp byte[ebx+eax],0
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je @f
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inc eax
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jmp @b
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@@: pop ebx
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ret
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endf
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;-----------------------------------------------------------------------------
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func rgb_to_gray ;////////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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push 0 eax
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and dword[esp],0x000000FF
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fild dword[esp]
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fmul [float_gray_b]
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shr eax,8
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mov [esp],eax
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and dword[esp],0x000000FF
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fild dword[esp]
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fmul [float_gray_g]
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faddp
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shr eax,8
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and eax,0x000000FF
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mov [esp],eax
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fild dword[esp]
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fmul [float_gray_r]
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faddp
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frndint
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fist dword[esp]
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fist dword[esp+1]
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fistp dword[esp+2]
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pop eax
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add esp,4
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ret
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endf
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;float_gray_r dd 0.30f
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;float_gray_g dd 0.59f
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;float_gray_b dd 0.11f
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;-----------------------------------------------------------------------------
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func get_active_menu_item ;///////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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pushad
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mov [mi_cur],0
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mcall 37,1
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movsx ebx,ax
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sar eax,16
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mov ecx,__rc
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pushd 2 0 (main_menu.width+7) (ATOPH-2)
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popd [__rc+0xC] [__rc+0x8] [__rc+0x4] [__rc+0x0]
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; add [__rc+0xC],ATOPH-2
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call pt_in_rect
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jnc .outside_menu
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m2m dword[ecx+0x8],dword[ecx+0x0]
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mov edx,main_menu
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@@: inc [mi_cur]
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movzx esi,word[edx+0]
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add [ecx+0x8],esi
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call pt_in_rect
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jc .exit
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m2m dword[ecx+0x0],dword[ecx+0x8]
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add edx,8+1
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movzx esi,byte[edx-1]
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add edx,esi
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cmp byte[edx+8],0
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jne @b
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mov [mi_cur],0
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.exit:
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popad
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ret
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.outside_menu:
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or [mi_cur],-1
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@@: popad
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ret
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endf
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;-----------------------------------------------------------------------------
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func get_active_popup_item ;//////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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pushad
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mov [pi_cur],0
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mcall 37,1
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movsx ebx,ax
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sar eax,16
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mov ecx,__rc
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mov dword[ecx+0x0],0
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mov dword[ecx+0x4],0
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movzx edx,[ebp+POPUP.width]
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mov dword[ecx+0x8],edx
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movzx edx,[ebp+POPUP.height]
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mov dword[ecx+0xC],edx
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call pt_in_rect
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jnc .outside_window
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inc dword[ecx+0x0]
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mov dword[ecx+0x4],3
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dec dword[ecx+0x8]
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mov dword[ecx+0xC],3+POP_IHEIGHT-1
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mov edx,[ebp+POPUP.data]
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@@: inc [pi_cur]
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inc edx
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movzx esi,byte[edx-1]
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cmp byte[edx],'-'
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jne .lp1
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pushd [ecx+0xC]
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sub dword[ecx+0xC],POP_IHEIGHT-4
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call pt_in_rect
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popd [ecx+0xC]
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jc .separator
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add dword[ecx+0x4],4
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add dword[ecx+0xC],4
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jmp .lp3
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.lp1: call pt_in_rect
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jnc .lp2
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mov eax,[pi_cur]
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test byte[ebp+eax-1],1
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jnz .exit
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jmp .separator
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.lp2: add dword[ecx+0x4],POP_IHEIGHT
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add dword[ecx+0xC],POP_IHEIGHT
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add edx,esi
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inc edx
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movzx esi,byte[edx-1]
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.lp3: add edx,esi
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cmp byte[edx],0
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jne @b
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.separator:
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mov [pi_cur],0
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.exit:
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popad
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ret
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.outside_window:
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or [pi_cur],-1
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jmp .exit
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endf
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;-----------------------------------------------------------------------------
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func line_add_spaces ;////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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; Input:
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; ESI = line offset
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; ECX = needed line length
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; Output:
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; EAX = delta
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;-----------------------------------------------------------------------------
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xor eax,eax
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pushad
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movzx edx,word[esi]
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cmp ecx,edx
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jbe .exit
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sub ecx,edx
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lea eax,[ecx+4]
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call editor_realloc_lines
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mov [esp+4*7],eax
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add esi,eax
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push ecx
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mov edi,[cur_editor.Lines]
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add edi,[edi-4]
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dec edi
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mov eax,esi
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mov esi,edi
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sub esi,ecx
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lea ecx,[eax+4]
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add ecx,edx
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push ecx
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neg ecx
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lea ecx,[esi+ecx+1]
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std
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rep movsb
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pop edi ecx
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add [eax],cx
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mov al,' '
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cld
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rep stosb
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.exit:
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popad
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ret
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endf
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;-----------------------------------------------------------------------------
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func delete_selection ;///////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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; call init_sel_vars
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cmp [sel.selected],0
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je .exit.2
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pushad
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mov ecx,[sel.begin.y]
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cmp ecx,[sel.end.y]
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je .single_line
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call get_line_offset
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and dword[esi],not 0x00020000
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or dword[esi],0x00010000
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mov ecx,[sel.begin.x]
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call line_add_spaces
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add esi,eax
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lea edi,[esi+4]
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mov ecx,[sel.end.y]
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call get_line_offset
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call get_real_length
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cmp eax,[sel.end.x]
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jbe @f
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mov eax,[sel.end.x]
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@@: movzx ecx,word[esi]
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sub ecx,eax
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mov ebx,[sel.begin.x]
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add ebx,ecx
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mov [edi-4],bx
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add edi,[sel.begin.x]
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lea esi,[esi+eax+4]
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mov ecx,[cur_editor.Lines]
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add ecx,[ecx-4]
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sub ecx,esi
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cld
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rep movsb
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mov eax,[sel.end.y]
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sub eax,[sel.begin.y]
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sub [cur_editor.Lines.Count],eax
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jmp .exit
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.single_line:
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call get_line_offset
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and dword[esi],not 0x00020000
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or dword[esi],0x00010000
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call get_real_length
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cmp eax,[sel.begin.x]
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jbe .exit
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mov ecx,[sel.end.x]
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cmp ecx,eax
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jbe @f
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mov ecx,eax
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@@: sub ecx,[sel.begin.x]
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sub [esi],cx
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lea edi,[esi+4]
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add edi,[sel.begin.x]
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lea esi,[edi+ecx]
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mov ecx,[cur_editor.Lines]
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add ecx,[ecx-4]
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sub ecx,esi
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cld
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rep movsb
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.exit:
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mov eax,[sel.begin.x]
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mov [cur_editor.Caret.X],eax
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mov [cur_editor.SelStart.X],eax
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mov eax,[sel.begin.y]
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mov [cur_editor.Caret.Y],eax
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mov [cur_editor.SelStart.Y],eax
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mov ecx,[cur_editor.Lines.Count]
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call get_line_offset
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movzx eax,word[esi]
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lea esi,[esi+eax+4]
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mov eax,[cur_editor.Lines]
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add eax,[eax-4]
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sub esi,eax
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lea eax,[esi+4096]
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call editor_realloc_lines
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popad
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mov [cur_editor.Modified],1
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clc
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ret
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.exit.2:
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stc
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ret
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endf
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;-----------------------------------------------------------------------------
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func get_selection_size ;/////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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push ecx esi
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mov ecx,[sel.end.y]
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inc ecx
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call get_line_offset
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mov eax,esi
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mov ecx,[sel.begin.y]
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call get_line_offset
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sub eax,esi
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pop esi ecx
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ret
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endf
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;-----------------------------------------------------------------------------
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func get_lines_in_file ;//////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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; Input:
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; ESI = data pointer
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; ECX = data length
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; Output:
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; EAX = lines number
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; EBX = extra length after tabs expansion
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;-----------------------------------------------------------------------------
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push ecx edx esi 0
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or ebx,-1
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xor edx,edx
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.lp0: inc ebx
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.lp1: dec ecx
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jle .lp2
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lodsb
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cmp al,0
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je .lp2
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cmp al,9
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je .TB
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cmp al,10
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je .LF
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cmp al,13
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je .CR
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inc edx
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jmp .lp1
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.lp2: lea eax,[ebx+1]
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pop ebx esi edx ecx
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ret
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.CR: cmp byte[esi],10
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jne .LF
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lodsb
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.LF: xor edx,edx
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jmp .lp0
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.TB: and edx,00000111b
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add dword[esp],ATABW
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sub [esp],edx
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xor edx,edx
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jmp .lp1
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endf
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;-----------------------------------------------------------------------------
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func update_caption ;/////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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lea esi,[cur_editor.FilePath]
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mov edi,s_title
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@@: lodsb
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cmp al,0
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je @f
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stosb
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jmp @b
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@@:
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mov dword[edi],' - '
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add edi,3
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@@: mov esi,htext
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mov ecx,htext.size
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cld
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rep movsb
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mov al,0
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stosb
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mcall 71,1,s_title
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clc
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ret
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endf
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;-----------------------------------------------------------------------------
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func mem.Alloc ;//////////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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push ebx ecx
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lea ecx,[eax+4+4095]
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and ecx,not 4095
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mcall 68,12
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add ecx,-4
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mov [eax],ecx
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add eax,4
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pop ecx ebx
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ret
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endf
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;-----------------------------------------------------------------------------
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func mem.ReAlloc ;////////////////////////////////////////////////////////////
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;-----------------------------------------------------------------------------
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push ebx ecx esi edi eax
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or eax,eax
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jz @f
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lea ecx,[ebx+4+4095]
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and ecx,not 4095
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add ecx,-4
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cmp ecx,[eax-4]
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je .exit
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@@: mov eax,ebx
|
|
call mem.Alloc
|
|
xchg eax,[esp]
|
|
or eax,eax
|
|
jz .exit
|
|
mov esi,eax
|
|
xchg eax,[esp]
|
|
mov edi,eax
|
|
mov ecx,[esi-4]
|
|
cmp ecx,[edi-4]
|
|
jbe @f
|
|
mov ecx,[edi-4]
|
|
@@: add ecx,3
|
|
shr ecx,2
|
|
cld
|
|
rep movsd
|
|
xchg eax,[esp]
|
|
call mem.Free
|
|
.exit:
|
|
pop eax edi esi ecx ebx
|
|
ret
|
|
endf
|
|
|
|
;-----------------------------------------------------------------------------
|
|
func mem.Free ;///////////////////////////////////////////////////////////////
|
|
;-----------------------------------------------------------------------------
|
|
push ebx ecx
|
|
lea ecx,[eax-4]
|
|
mcall 68,13
|
|
pop ecx ebx
|
|
ret
|
|
endf
|