C++ (Cpp) MoveLineUp Examples

Example #1

void PrintString(char* s)
{
	DIRECT bounds;

	bounds.left   = 0;
	bounds.top    = 0;
	bounds.right  = PANEL_WIDTH;
	bounds.bottom = PANEL_HEIGHT;

	while(*s){
		if(*s == '\n'){
			cur_col = g_nColMax - 1;/* new line */
        }else if(*s == '\r'){
        	cur_col = 0;
            goto next_char;
        }else if (*s == '\b'){
        	cur_col --;
            goto next_char;
		}else{
			FillASCII(cur_row, cur_col, *s);
		}
	
		cur_col++;
        if (cur_col == (int)g_nColMax) //MM
		{
            if (cur_row == (int)g_nRowMax-2) //MM 
			{
                MoveLineUp();
            }else{
                cur_row++;
            }
            cur_col = 0;
        }
next_char:
       s++;
	}
}

Example #2

File: TextViewBase.cpp Project: aronsoyol/MnView

//
//	Process keyboard-navigation keys
//
LONG TextViewBase::OnKeyDown(UINT nKeyCode, UINT nFlags)
{
	bool fCtrlDown	= IsKeyPressed(VK_CONTROL);
	bool fShiftDown	= IsKeyPressed(VK_SHIFT);
	BOOL fAdvancing = FALSE;
	long oldCursorOffset = m_nSelectionEnd;
	//
	//	Process the key-press. Cursor movement is different depending
	//	on if <ctrl> is held down or not, so act accordingly
	//
	switch(nKeyCode)
	{
	case VK_SHIFT: case VK_CONTROL:
		return 0;

	case 'a': case 'A':
		
		{
			if(fCtrlDown)
				SelectAll();
		}
		return 0;
	// CTRL+Z undo
	case 'z': case 'Z':
		
		if(fCtrlDown && Undo())
			/*NotifyParent(TVN_CHANGED);*/

		return 0;

	// CTRL+Y redo
	case 'y': case 'Y':
		
		if(fCtrlDown && Redo()) 
			//NotifyParent(TVN_CHANGED);

		return 0;
	// CTRL+C copy
	case 'c': case 'C':
	{
		//if(fCtrlDown && Redo()) 
		//	NotifyParent(TVN_CHANGED);
		if(fCtrlDown)
			return OnCopy();
		else
			break;
	}

	case 'x': case 'X':
		{
		if(fCtrlDown)
			return OnCut();
		else
			break;
		}
	case 'v': case 'V':
		{
		if(fCtrlDown)
			return OnPaste();
		else
			break;
		}

	
	// Change insert mode / clipboard copy&paste
	case VK_INSERT:

		if(fCtrlDown)
		{
			OnCopy();
			NotifyParent(TVN_CHANGED);
		}
		else if(fShiftDown)
		{
			OnPaste();
			NotifyParent(TVN_CHANGED);
		}
		else
		{
			if(m_nEditMode == MODE_INSERT)
				m_nEditMode = MODE_OVERWRITE;

			else if(m_nEditMode == MODE_OVERWRITE)
				m_nEditMode = MODE_INSERT;

			NotifyParent(TVN_EDITMODE_CHANGE);
		}

		return 0;

	case VK_DELETE:

		if(m_nEditMode != MODE_READONLY)
		{
			if(fShiftDown)
				OnCut();
			else
				ForwardDelete();

			NotifyParent(TVN_CHANGED);
		}
		return 0;

	case VK_BACK:

		if(m_nEditMode != MODE_READONLY)
		{
			BackDelete();
			fAdvancing = FALSE;

			NotifyParent(TVN_CHANGED);
		}
		return 0;

	case VK_LEFT:

		if(fCtrlDown)	MoveWordPrev();
		else			MoveCharPrev();

		fAdvancing = FALSE;
		break;

	case VK_RIGHT:
		
		if(fCtrlDown)	MoveWordNext();
		else			MoveCharNext();
			
		fAdvancing = TRUE;
		break;

	case VK_UP:
		if(fCtrlDown)	Scroll(0, -1);
		else			MoveLineUp(1);
		break;

	case VK_DOWN:
		if(fCtrlDown)	Scroll(0, 1);
		else			MoveLineDown(1);
		break;

	case VK_PRIOR:
		if(!fCtrlDown)	MovePageUp();
		break;

	case VK_NEXT:
		if(!fCtrlDown)	MovePageDown();
		break;

	case VK_HOME:
		if(fCtrlDown)	MoveFileStart();
		else			MoveLineStart(m_nCurrentLine);
		break;

	case VK_END:
		if(fCtrlDown)	MoveFileEnd();
		else			MoveLineEnd(m_nCurrentLine);
		break;

	default:
		return 0;
	}

	// Extend selection if <shift> is down
	if(fShiftDown)
	{		
		InvalidateRange(m_nSelectionEnd, oldCursorOffset);
		//m_nSelectionEnd	= m_nCursorOffset;
	}
	// Otherwise clear the selection
	else
	{
		if(m_nSelectionStart != m_nSelectionEnd)
			InvalidateRange(m_nSelectionStart, m_nSelectionEnd);

		//m_nSelectionEnd		= m_nCursorOffset;
		m_nSelectionStart = m_nSelectionEnd;
	}

	// update caret-location (xpos, line#) from the offset
	//UpdateCaretOffset(m_nCursorOffset, fAdvancing, &m_nCaretPosX, &m_nCurrentLine);
	CHAR_POS cp;
	FilePosToCharPos(m_nSelectionEnd, &cp);
	m_nCurrentLine_D = cp.logLine;
	
	// maintain the caret 'anchor' position *except* for up/down actions
	if(nKeyCode != VK_UP && nKeyCode != VK_DOWN)
	{
		//m_nAnchorPosX = m_nCaretPosX;

		// scroll as necessary to keep caret within viewport
		//ScrollToPosition(m_nCaretPosX, m_nCurrentLine);
	}
	else
	{
		// scroll as necessary to keep caret within viewport
		if(!fCtrlDown);
			//ScrollToPosition(m_nCaretPosX, m_nCurrentLine);
	}

	NotifyParent(TVN_CURSOR_CHANGE);

	return 0;
}