www.pudn.com > Flash4player.rar > EDITTEXT.CPP
/****************************************************************************
CONFIDENTIAL AND PROPRIETARY INFORMATION. The entire contents of this file
is Copyright © Macromedia, Inc. 1993-1998, All Rights Reserved. This
document is an unpublished trade secret of Macromedia, Inc. and may not be
viewed, copied or distributed by anyone, without the specific, written
permission of Macromedia, Inc.
****************************************************************************/
#include "stdafx.h"
#include "sobject.h"
#include "stags.h"
#include "splay.h"
#include "splayer.h"
#include "edittext.h"
#include "curve.h"
#include "sstroker.h"
#include NATIVE_UTIL
#include NATIVE_PLAYERWND
// now defined in sobject.cpp
void ResolveFontName(char *result, const char *fontName);
enum
{
kUnixSerifFont = 1,
kUnixSansFont = 9,
kUnixTypewriterFont = 17,
kUnixBoldOffset = 2,
kUnixItalicOffset = 2
};
#define BORDER_PAD 8
void AddRect(P_SRECT rect,
P_MATRIX mat, RColor* color,
DisplayList *display, REdge** edgeList,
SStroker* stroker);
// INVALID_CODE is used to represent a "missing" glyph which is not present
// in an outline font. Characters with missing glyphs are rendered zero-width
// and are ignored when typed by the user.
#define INVALID_CODE 0xFFFF
// The default fallback font when no device font is found
#define DEFAULT_EDITTEXT_FONT "Times New Roman"
#define DEFAULT_EDITTEXT_J_FONT_1 "MS UI Gothic"
#define DEFAULT_EDITTEXT_J_FONT_2 "MS PƒSƒVƒbƒN"
#define DEFAULT_EDITTEXT_HEIGHT 360
#ifdef EDITTEXT
//------------------------------------------------------------------------
//
// EditText
//
#ifndef min
#define min(x, y) ((x)<(y)?(x):(y))
#endif
#ifndef max
#define max(x, y) ((x)>(y)?(x):(y))
#endif
BOOL EditText::m_insertMode = TRUE;
EditText::EditText(SObject* obj)
{
SParser parser;
parser.Attach(obj->character->data, 0);
m_flags = parser.GetWord();
if ( m_flags & seditTextFlagsHasFont )
{
parser.SkipBytes(4);
}
if ( m_flags & seditTextFlagsHasTextColor )
{
parser.GetColor(true);
}
if ( m_flags & seditTextFlagsHasMaxLength )
{
m_maxLength = parser.GetWord();
}
else
{
m_maxLength = 0;
}
if ( m_flags & seditTextFlagsHasLayout )
{
m_align = parser.GetByte();
parser.SkipBytes(8);
}
else
{
m_align = stextAlignLeft;
}
m_variable = parser.GetStringP();
if ( m_flags & seditTextFlagsHasText )
{
m_initialText = parser.GetStringP();
}
else
{
m_initialText = NULL;
}
m_obj = obj;
m_character = obj->character;
m_clickTime = 0;
m_selecting = FALSE;
m_buffer = new U16[1];
m_buffer[0] = '\0';
m_length = 0;
m_selectionStart = 0;
m_selectionEnd = 0;
m_hscroll = 0;
m_vscroll = 0;
m_mouseIsDown = FALSE;
m_doFindCursor = FALSE;
m_mousePosition.x = 0;
m_mousePosition.y = 0;
m_lineX = NULL;
m_drawn = FALSE;
m_lineStarts = NULL;
m_numLines = 0;
m_atLineEnd = FALSE;
m_heldLeadByte = -1;
devCharWidths = NULL;
devLineSpacing = 0;
devAscent = 0;
RectSetEmpty(&devBounds);
}
EditText::~EditText()
{
delete [] m_buffer;
delete [] m_lineStarts;
delete [] m_lineX;
delete [] devCharWidths;
}
#ifdef EDITTEXT
BOOL PlayerIsFontAvailable(const char *fontName)
{
return FALSE;
}
void EditText::GetFontDesc(FontDesc& fontDesc)
{
SParser parser;
parser.Attach(m_character->data, 0);
U16 flags = parser.GetWord();
U16 fontTag = 0;
if ( flags & seditTextFlagsHasFont )
{
fontTag = parser.GetWord();
fontDesc.height = parser.GetWord();
}
ScriptPlayer* player = m_character->player;
// On Unix, if no font was specified, fall back on built-in Times Roman.
if ( !fontTag )
{
fontTag = kUnixSerifFont;
player = &player->splayer->builtInFontsPlayer;
}
if ( fontTag )
{
// Find the font character
SCharacter* font = player->FindCharacter(fontTag);
char fontName[256];
if ( font )
{
// Get the font name
if ( font->tagCode == stagDefineFont2 )
{
parser.Attach(font->data - font->font.nDataOffset, 0);
int len = parser.GetByte();
parser.GetData(fontName, len);
fontName[len] = 0;
fontDesc.boldFlag = (font->font.flags & sfontFlagsBold) != 0;
fontDesc.italicFlag = (font->font.flags & sfontFlagsItalic) != 0;
fontDesc.japaneseFlag = (font->font.flags & sfontFlagsShiftJIS) != 0;
}
else if ( font->font.infoData )
{
parser.Attach(font->font.infoData, 0);
int len = parser.GetByte();
parser.GetData(fontName, len);
fontName[len] = 0;
// Get the font flags
U8 flags = parser.GetByte();
fontDesc.boldFlag = (flags & tfontBold) != 0;
fontDesc.italicFlag = (flags & tfontItalic) != 0;
fontDesc.japaneseFlag = (flags & 0xf) == tfontShiftJIS;
}
BOOL useGlyphFont = IsFontIncluded();
// If outlines aren't included, we need to fall back
// on a built-in font
if ( !useGlyphFont )
{
if ( !strcmp(fontName, SANS_NAME) )
{
fontTag = kUnixSansFont;
}
else if ( !strcmp(fontName, TYPEWRITER_NAME) )
{
fontTag = kUnixTypewriterFont;
}
else
{
fontTag = kUnixSerifFont;
}
if ( fontDesc.boldFlag )
{
fontTag += kUnixBoldOffset;
}
if ( fontDesc.italicFlag )
{
fontTag += kUnixItalicOffset;
}
font = m_character->player->splayer->builtInFontsPlayer.FindCharacter(fontTag);
useGlyphFont = TRUE;
}
// Figure out the code table offset, if applicable
if ( useGlyphFont )
{
U16 g = font->font.nGlyphs;
U8* s;
if ( font->font.flags & sfontFlagsWideOffsets )
{
s = font->data + 4*g;
fontDesc.codeOffset = (U32)s[0] | ((U32)s[1]<<8) | ((U32)s[2]<<16) | ((U32)s[3]<<24);
}
else
{
s = font->data + 2*g;
fontDesc.codeOffset = (U16)s[0] | ((U16)s[1]<<8);
}
}
else
{
// Not using the outlines so ignore the code table
fontDesc.codeOffset = -1;
// We must determine if this font actually exists.
// If it doesn't, fall back on a predetermined font.
if ( !PlayerIsFontAvailable(fontDesc.fontName) )
{
if ( fontDesc.japaneseFlag )
{
// MS UI Gothic is preferred, but fallback on MS Gothic if not present
if ( PlayerIsFontAvailable(DEFAULT_EDITTEXT_J_FONT_1) )
{
strcpy(fontDesc.fontName, DEFAULT_EDITTEXT_J_FONT_1);
}
else
{
strcpy(fontDesc.fontName, DEFAULT_EDITTEXT_J_FONT_2);
}
}
else
{
strcpy(fontDesc.fontName, DEFAULT_EDITTEXT_FONT);
}
}
}
// Success! Return this font information.
fontDesc.font = font;
return;
}
}
// No font info in the text field tag, so we'll have to use defaults.
strcpy(fontDesc.fontName, DEFAULT_EDITTEXT_FONT);
fontDesc.boldFlag = FALSE;
fontDesc.italicFlag = FALSE;
fontDesc.japaneseFlag = FALSE;
fontDesc.height = DEFAULT_EDITTEXT_HEIGHT;
fontDesc.font = NULL;
fontDesc.codeOffset = -1;
}
#endif
BOOL PlayerIsMultiByte();
BOOL PlayerIsLeadByte(U8 ch);
BOOL EditText::IsMultiByte()
{
return PlayerIsMultiByte();
}
BOOL EditText::IsLeadByte(U8 ch)
{
return PlayerIsLeadByte(ch);
}
U16 * EditText::MBCSToWide(char *buffer, int index, int count)
{
U16 *result = new U16[count + 1];
U16 *dst = result;
U8 *src = (U8*)buffer + index;
while ( count )
{
if ( IsLeadByte(*src) && count > 1 )
{
*dst++ = ((U16)*src<<8) | *(src+1);
src += 2;
count -= 2;
}
else
{
*dst++ = *src++;
count--;
}
}
*dst = 0;
return result;
}
char * EditText::WideToMBCS(U16 *buffer, int index, int count)
{
char *result = new char[count * 2 + 1];
U16 *src = buffer + index;
char *dst = result;
while ( count-- )
{
if ( *src > 0xff )
{
*dst++ = (*src>>8)&0xff;
*dst++ = *src&0xff;
}
else
{
*dst++ = (char)(*src);
}
src++;
}
*dst = 0;
return result;
}
int WideStrLen(const U16 *buf)
{
int len = 0;
while ( *buf++ )
{
len++;
}
return len;
}
void WideStrCopy(U16 *dst, const U16 *src)
{
while ( *dst++ = *src++ );
}
char* EditText::GetBuffer()
{
return WideToMBCS(m_buffer, 0, m_length);
}
void EditText::SetBuffer(char *text)
{
U16 *newBuffer = MBCSToWide(text, 0, strlen(text));
if ( newBuffer )
{
delete [] m_buffer;
m_buffer = newBuffer;
m_length = WideStrLen(m_buffer);
m_selectionStart = min(m_length, m_selectionStart);
m_selectionEnd = min(m_length, m_selectionEnd);
}
}
void EditText::AutoScroll()
{
if ( !m_mouseIsDown )
{
return;
}
int maxVScroll = CalcMaxVScroll();
SRECT bounds;
SPOINT pt = m_mousePosition;
{
bounds = m_character->bounds;
RectInset(2*onePoint, &bounds);
// Transform the mouse position into the local
// coordinate system of the edit text
MATRIX invmat;
MatrixInvert(&m_mat, &invmat);
if ( m_character->player->display->antialias )
{
pt.x *= 4;
pt.y *= 4;
}
MatrixTransformPoint(&invmat, &pt, &pt);
}
// if the selection does not extend to the start of the buffer
// and the mouse is out of bounds on the top, dec vscroll
if ( pt.y < bounds.ymin )
{
if ( m_selectionEnd > 0 && m_vscroll > 0 )
{
m_vscroll--;
}
}
if ( pt.y > bounds.ymax )
{
if ( m_selectionEnd < m_length && m_vscroll < m_numLines-1 )
{
m_vscroll++;
}
}
if ( m_vscroll > maxVScroll )
{
m_vscroll = maxVScroll;
}
// Find the line that the cursor is on
int lineStart = FindLineStart(m_selectionEnd);
// Find the length of the line the cursor is on
int lineLength = FindLineEnd(m_selectionEnd) - lineStart;
// if the selection does not extend to the end of the buffer
// and the mouse is out of bounds ont he bottom, inc vscroll
// if the selection does not extend to the end of line and
// the mouse is out of bounds on the right, inc hscroll
// if the selection does not extend to the start of the line and
// the mouse is out of bounds on the left, dec hscroll
if ( !(m_flags & seditTextFlagsWordWrap) && m_align != stextAlignRight && m_align != stextAlignCenter )
{
int lineSelectionIndex = m_selectionEnd - lineStart;
if ( pt.x > bounds.xmax && lineSelectionIndex < lineLength && m_hscroll < lineLength )
{
m_hscroll++;
}
if ( pt.x < bounds.xmin && lineSelectionIndex > 0 && m_hscroll > 0 )
{
m_hscroll--;
}
}
}
void EditText::FindCursor(SRECT* devBounds, int *devCharWidths)
{
// First, find the line that the cursor is on.
int lineno = FindLineNumber(m_selectionEnd);
// Scroll, if necessary, to keep the line in view
if ( m_vscroll > lineno )
{
m_vscroll = lineno;
}
else
{
int visibleLines = CalcVisibleLines();
if ( lineno-m_vscroll >= visibleLines )
{
m_vscroll = lineno-visibleLines+1;
}
}
// Scroll, if necessary, to keep m_selectionEnd in view
// Find the position of the beginning of the line the
// cursor is on
int startLine = FindLineStart(m_selectionEnd);
int lineSelectIndex = m_selectionEnd-startLine;
// Find the x position of m_selectionEnd
if ( !(m_flags & seditTextFlagsWordWrap) )
{
if ( m_hscroll >= lineSelectIndex )
{
m_hscroll = lineSelectIndex;
// Scroll the cursor so that it's at
// the 1/4 mark of the text field's width
int x = devBounds->xmin;
int target = devBounds->xmin + (devBounds->xmax - devBounds->xmin) / 4;
while ( x < target && m_hscroll )
{
m_hscroll--;
x += devCharWidths[startLine+m_hscroll];
}
}
else
{
int x = devBounds->xmin;
for ( int i=m_hscroll; i devBounds->xmax )
{
x -= devCharWidths[startLine+m_hscroll];
m_hscroll++;
}
}
}
}
void EditText::ClearSelection()
{
m_selectionStart = m_selectionEnd = 0;
}
void EditText::Forward(int wholeWord, int extend)
{
if ( wholeWord )
{
// Forward one word
// Skip initial whitespace
while ( m_selectionEnd < m_length && LineBreakOK_Index(m_selectionEnd) )
{
m_selectionEnd++;
}
// Skip until whitespace
while ( m_selectionEnd < m_length && !LineBreakOK_Index(m_selectionEnd) )
{
m_selectionEnd++;
}
}
else
{
// Forward one character
if ( m_selectionEnd < m_length )
{
m_selectionEnd++;
}
}
if ( !extend )
{
m_selectionStart = m_selectionEnd;
}
m_atLineEnd = FALSE;
}
void EditText::Backspace()
{
if ( m_selectionStart == m_selectionEnd )
{
// No selection, delete character before the cursor.
if ( m_selectionEnd > 0 )
{
WideStrCopy(m_buffer+m_selectionEnd-1, m_buffer+m_selectionEnd);
m_selectionEnd--;
m_selectionStart--;
m_length--;
m_atLineEnd = FALSE;
}
}
else
{
// There is a selection, delete it.
DeleteSelection();
}
}
void EditText::Backward(int wholeWord, int extend)
{
if ( wholeWord )
{
// By one word
// Skip initial whitespace
while ( m_selectionEnd > 0 && LineBreakOK_Index(m_selectionEnd-1) )
{
m_selectionEnd--;
}
// Skip until whitespace
while ( m_selectionEnd > 0 && !LineBreakOK_Index(m_selectionEnd-1) )
{
m_selectionEnd--;
}
}
else
{
// By one character
if ( m_selectionEnd > 0 )
{
m_selectionEnd--;
}
}
if ( !extend )
{
m_selectionStart = m_selectionEnd;
}
m_atLineEnd = FALSE;
}
void EditText::DeleteSelection()
{
if ( m_selectionStart != m_selectionEnd )
{
int A, B;
if ( m_selectionStart < m_selectionEnd )
{
A = m_selectionStart;
B = m_selectionEnd;
}
else
{
A = m_selectionEnd;
B = m_selectionStart;
}
int count = B - A;
WideStrCopy(m_buffer+A, m_buffer+B);
m_selectionStart = m_selectionEnd = A;
m_length -= count;
m_atLineEnd = FALSE;
}
}
int EditText::CalcVisibleLines()
{
if ( !devLineSpacing )
{
return 0;
}
SRECT bounds = m_character->bounds;
RectInset(2*onePoint, &bounds);
// Calculate the max value for vscroll based on # of lines
int visibleLines = (devBounds.ymax-devBounds.ymin-devAscent)/devLineSpacing;
if ( visibleLines < 0 )
{
visibleLines = 0;
}
visibleLines++;
return visibleLines;
}
// Calculate the max value for vscroll based on # of lines
int EditText::CalcMaxVScroll()
{
int maxVScroll = m_numLines-CalcVisibleLines();
if ( maxVScroll < 0 )
{
maxVScroll = 0;
}
return maxVScroll;
}
int EditText::FindLineNumber(int pos)
{
// Search the line starts array. Find a line
// with an index greater than pos.
int i;
for ( i=0; i lineEnd )
{
target = lineEnd;
}
if ( modifiers & Keyboard::ID_KEY_SHIFT )
{
// If shift-home, extend selection to beginning of line
m_selectionEnd = target;
}
else
{
// If home, de-select and move cursor to beginning of line
m_selectionStart = m_selectionEnd = target;
}
m_atLineEnd = FALSE;
}
break;
case Keyboard::ID_KEY_DOWN:
{
if ( m_atLineEnd )
{
if ( m_selectionEnd )
{
m_selectionEnd--;
}
}
// Find our position on this line
int lineStart = FindLineStart(m_selectionEnd);
int index = m_selectionEnd - lineStart;
// Find the beginning of the next line
int target = FindLineEnd(m_selectionEnd);
if ( target < m_length )
{
target++;
}
// New position is index'th character of the line
int lineEnd = FindLineEnd(target);
target += index;
if ( target > lineEnd )
{
target = lineEnd;
}
if ( modifiers & Keyboard::ID_KEY_SHIFT )
{
// If shift-home, extend selection to beginning of line
m_selectionEnd = target;
}
else
{
// If home, de-select and move cursor to beginning of line
m_selectionStart = m_selectionEnd = target;
}
m_atLineEnd = FALSE;
}
break;
case Keyboard::ID_KEY_LEFT:
Backward((modifiers & Keyboard::ID_KEY_CTRL) != 0,
(modifiers & Keyboard::ID_KEY_SHIFT) != 0);
break;
case Keyboard::ID_KEY_RIGHT:
Forward((modifiers & Keyboard::ID_KEY_CTRL) != 0,
(modifiers & Keyboard::ID_KEY_SHIFT) != 0);
break;
case Keyboard::ID_KEY_PAGE_UP:
{
if ( modifiers & Keyboard::ID_KEY_SHIFT )
{
// If shift-home, extend selection to beginning of line
m_selectionEnd = 0;
}
else
{
// If home, de-select and move cursor to beginning of line
m_selectionStart = m_selectionEnd = 0;
}
m_atLineEnd = FALSE;
}
break;
case Keyboard::ID_KEY_PAGE_DOWN:
{
if ( modifiers & Keyboard::ID_KEY_SHIFT )
{
// If shift-home, extend selection to beginning of line
m_selectionEnd = m_length;
}
else
{
// If home, de-select and move cursor to beginning of line
m_selectionStart = m_selectionEnd = m_length;
}
m_atLineEnd = FALSE;
}
break;
case Keyboard::ID_KEY_HOME:
{
if ( m_selectionEnd != 0 && m_atLineEnd )
{
m_selectionEnd--;
}
int target;
if ( modifiers & Keyboard::ID_KEY_CTRL )
{
// Jump to beginning of buffer
target = 0;
}
else
{
// Jump to beginning of line
target = FindLineStart(m_selectionEnd);
}
if ( modifiers & Keyboard::ID_KEY_SHIFT )
{
// If shift-home, extend selection to beginning of line
m_selectionEnd = target;
}
else
{
// If home, de-select and move cursor to beginning of line
m_selectionStart = m_selectionEnd = target;
}
m_atLineEnd = FALSE;
}
break;
case Keyboard::ID_KEY_END:
{
if ( !m_atLineEnd )
{
int target;
if ( modifiers & Keyboard::ID_KEY_CTRL )
{
// Jump to end of buffer
target = m_length;
}
else
{
// Jump to end of line
target = FindLineEnd(m_selectionEnd);
if ( LineBreakOK_Index(target) )
{
target++;
m_atLineEnd = TRUE;
}
}
// If shift-end, extend selection to end of line
if ( modifiers & Keyboard::ID_KEY_SHIFT )
{
m_selectionEnd = target;
}
else
{
// Move to end of line
m_selectionStart = m_selectionEnd = target;
}
}
}
break;
case Keyboard::ID_KEY_INSERT:
m_insertMode = !m_insertMode;
break;
case Keyboard::ID_KEY_DELETE:
if ( !readOnly )
{
if ( (modifiers & Keyboard::ID_KEY_CTRL) != 0 )
{
// Ctrl-Shift-Delete means nothing
if ( (modifiers & Keyboard::ID_KEY_SHIFT) == 0 )
{
// If there is a selection, do regular delete.
if ( m_selectionStart == m_selectionEnd )
{
Forward(TRUE, TRUE);
Delete();
}
else
{
Delete();
}
}
}
else
{
Delete();
}
m_atLineEnd = FALSE;
}
break;
case Keyboard::ID_KEY_CLEAR:
if ( !readOnly )
{
DeleteSelection();
m_atLineEnd = FALSE;
}
break;
case Keyboard::ID_KEY_ENTER:
if ( !readOnly && (m_flags & seditTextFlagsMultiline) != 0 )
{
Insert(editTextNewline);
}
break;
default:
if ( !readOnly )
{
Insert(key);
}
break;
}
m_doFindCursor = TRUE;
}
void EditText::CopyToClipboard( NativePlayerWnd* native )
{
int A, B;
if ( m_selectionStart < m_selectionEnd )
{
A = m_selectionStart;
B = m_selectionEnd;
}
else
{
A = m_selectionEnd;
B = m_selectionStart;
}
int count = B - A;
#ifdef EDITTEXT_CLIPBOARD_WIDE
U16 *buffer = new U16[count * 2 + 1];
U16 *src = m_buffer+A;
U16 *dst = buffer;
while ( count-- )
{
*dst++ = *src++;
}
*dst = 0;
native->SetStringToClipboard(buffer);
delete [] buffer;
#else
// Translate linefeeds to carriage returns
char *buffer = new char[count * 2 + 1];
U16 *src = m_buffer+A;
char *dst = buffer;
while ( count-- )
{
// if ( *src == editTextNewline )
// {
// *dst++ = '\n';
// }
// else
if ( *src > 0xff )
{
*dst++ = (*src>>8)&0xff;
*dst++ = *src&0xff;
}
else
{
*dst++ = *src;
}
src++;
}
*dst = 0;
native->SetStringToClipboard(buffer);
delete [] buffer;
#endif
}
void EditText::PasteFromClipboard( NativePlayerWnd* native)
{
#ifdef EDITTEXT_CLIPBOARD_WIDE
U16* clipboard;
#else
char* clipboard;
#endif
clipboard = native->GetStringFromClipboard();
if ( clipboard )
{
#ifdef EDITTEXT_CLIPBOARD_WIDE
InsertWideChars( clipboard, WideStrLen( clipboard) );
delete [] clipboard;
#else
Insert( clipboard, strlen( clipboard ) );
FreeStr( clipboard );
#endif
}
m_atLineEnd = FALSE;
}
void EditText::Insert(char *s, int len)
{
U16 *wideChars = MBCSToWide(s, 0, len);
InsertWideChars(wideChars, WideStrLen(wideChars));
delete [] wideChars;
}
void EditText::InsertWideChars(U16 *s, int insertLen)
{
U16 *buffer = s;
int count;
if ( !insertLen )
{
goto exit_gracefully;
}
// If using font outlines, purge any characters not in the font
{
buffer = new U16[insertLen];
if ( !buffer )
{
goto exit_gracefully;
}
memcpy(buffer, s, insertLen * sizeof(U16));
FontDesc fontDesc;
GetFontDesc(fontDesc);
U16 *dst = buffer, *src = buffer;
while ( insertLen-- )
{
U16 code = *src;
if ( code == editTextNewline || code == editTextSoftNewline )
{
*dst++ = code;
}
else
{
U16 g = FindGlyph(code, fontDesc);
if ( g == INVALID_CODE )
{
// If it's uppercase/lowercase, switch case and give
// it another go.
if ( code >= 'A' && code <= 'Z' )
{
code += ('a' - 'A');
g = FindGlyph(code, fontDesc);
}
else if ( code >= 'a' && code <= 'z' )
{
code -= ('a' - 'A');
g = FindGlyph(code, fontDesc);
}
}
if ( g != INVALID_CODE )
{
*dst++ = code;
}
}
src++;
}
insertLen = dst - buffer;
}
m_atLineEnd = FALSE;
// Delete any selection
DeleteSelection();
// Handle overwrite mode.
if ( !m_insertMode )
{
int writeEnd = m_selectionEnd + insertLen;
if ( writeEnd > m_length )
{
// If there is a maximum length setting, check
// against it first.
if ( m_maxLength != 0 && writeEnd > m_maxLength )
{
insertLen -= (writeEnd - m_maxLength);
if ( insertLen <= 0 )
{
goto exit_gracefully;
}
writeEnd = m_maxLength;
}
Expand(writeEnd);
m_length = writeEnd;
m_buffer[m_length] = '\0';
}
memcpy(m_buffer+m_selectionEnd, buffer, sizeof(U16) * insertLen);
m_selectionStart += insertLen;
m_selectionEnd += insertLen;
goto exit_gracefully;
}
// We're in insert mode.
// If there is a maximum length setting, check
// against it first.
if ( m_maxLength != 0 && m_length + insertLen > m_maxLength )
{
// Too long, shorten the string
insertLen = m_maxLength - m_length;
if ( insertLen <= 0 )
{
goto exit_gracefully;
}
}
// Expand the string
Expand(m_length + insertLen);
// Move all characters after the cursor.
count = m_length - m_selectionEnd + 1;
if ( count > 0 )
{
memmove(m_buffer + m_selectionEnd + insertLen,
m_buffer + m_selectionEnd,
sizeof(U16) * count);
}
// Bump up the length
m_length += insertLen;
// Place the new characters
memcpy(m_buffer + m_selectionEnd, buffer, sizeof(U16) * insertLen);
m_selectionEnd += insertLen;
m_selectionStart += insertLen;
exit_gracefully:
if ( buffer != s )
{
delete [] buffer;
}
}
void EditText::Expand(int size)
{
if ( size > m_length )
{
U16 *newBuffer = new U16[size + 1];
memset(newBuffer, 0, sizeof(U16) * (size + 1));
if ( m_buffer )
{
WideStrCopy(newBuffer, m_buffer);
delete [] m_buffer;
}
m_buffer = newBuffer;
}
}
void EditText::Delete()
{
if ( m_selectionStart == m_selectionEnd )
{
// There is no selection, delete character under cursor
if ( m_selectionEnd < m_length )
{
WideStrCopy(m_buffer+m_selectionEnd, m_buffer+m_selectionEnd+1);
m_length--;
}
}
else
{
// There is a selection, delete it.
DeleteSelection();
}
}
#define DOUBLE_CLICK_TIME 500
void EditText::DoMouse(SPOINT* pt, BOOL mouseIsDown)
{
if ( !m_drawn )
{
return;
}
if ( m_flags & seditTextFlagsNoSelect )
{
return;
}
SRECT bounds;
// #ifndef _UNIX
// if (IsFontIncluded())
// #endif
{
bounds = m_character->bounds;
RectInset(2*onePoint, &bounds);
}
BOOL shiftKey;
shiftKey = FALSE;
m_atLineEnd = FALSE;
// Check for double-click
if ( mouseIsDown && m_mousePosition.x == pt->x && m_mousePosition.y == pt->y )
{
#ifndef SPRITE_XTRA
// Check if less than DOUBLE_CLICK_TIME ms has elapsed
if ( GetTimeMSec() - m_clickTime < DOUBLE_CLICK_TIME )
{
// Select entire word
m_selectionStart = m_selectionEnd;
// Bump selection end up to nearest word boundary
U16 *ptr = m_buffer + m_selectionEnd;
while ( m_selectionEnd < m_length )
{
if ( LineBreakOK_Index(m_selectionEnd) || *ptr == editTextNewline || *ptr == editTextSoftNewline )
{
break;
}
ptr++;
m_selectionEnd++;
}
// Back selection start down to nearest word boundary
ptr = m_buffer + m_selectionStart;
while ( m_selectionStart > 0 )
{
if ( LineBreakOK_Index(m_selectionStart-1) || *(ptr-1) == editTextNewline || *(ptr-1) == editTextSoftNewline )
{
break;
}
ptr--;
m_selectionStart--;
}
return;
}
#endif
}
m_mouseIsDown = mouseIsDown;
m_mousePosition = *pt;
m_clickTime = GetTimeMSec();
SPOINT localpt = *pt;
{
// Transform the mouse position into local coordinates
MATRIX invmat;
MatrixInvert(&m_mat, &invmat);
if ( m_character->player->display->antialias )
{
localpt.x *= 4;
localpt.y *= 4;
}
MatrixTransformPoint(&invmat, &localpt, &localpt);
}
int visibleLines = CalcVisibleLines();
if ( !visibleLines )
{
return;
}
// Find the line that the mouse is over
int lineno = (localpt.y-bounds.ymin)/devLineSpacing;
lineno = max(0, min(lineno, visibleLines-1));
lineno += m_vscroll;
if ( lineno > m_numLines )
{
lineno = m_numLines;
}
int index = m_lineStarts[lineno];
int lineEnd = FindLineEnd(index);
index += m_hscroll;
if ( index > lineEnd )
{
index = lineEnd;
}
// Find the character in the text right before
// the position of the mouse click
int x = m_lineX[lineno];
for ( ; m_buffer[index]; index++ )
{
if ( index >= lineEnd )
{
if ( LineBreakOK_Index(index) )
{
index++;
m_atLineEnd = TRUE;
}
break;
}
if ( localpt.x < x+devCharWidths[index]/2 )
{
break;
}
x += devCharWidths[index];
if ( x > bounds.xmax )
{
break;
}
}
m_selectionEnd = index;
if ( !m_selecting )
{
m_selecting = TRUE;
if ( !shiftKey )
{
m_selectionStart = index;
}
}
else
{
if ( !mouseIsDown )
{
m_selecting = FALSE;
}
}
}
BOOL EditText::BreakEnglish(U16 ch1, U16 ch2)
{
return ch1 == ' ' || ch1 == '-';
}
enum
{
J_END = 0x00,
J_SETHI = 0x01,
J_RANGE = 0x02
};
static BOOL JCheckTable(U8 *table, U16 ch)
{
U8 ch_hi = (ch >> 8) & 0xFF;
U8 ch_lo = (ch & 0xFF);
U8 table_hi = 0;
while ( *table )
{
if ( *table == 1 )
{
// Select a new high byte
table_hi = *++table;
}
else if ( *table == 2 )
{
// Expect a range
U8 range_lo = *++table;
U8 range_hi = *++table;
if ( ch_hi == table_hi && ch_lo >= range_lo && ch_lo <= range_hi )
{
return TRUE;
}
}
else
{
// Regular character
if ( ch_hi == table_hi && ch_lo == *table )
{
return TRUE;
}
}
table++;
}
return FALSE;
}
BOOL EditText::LineBreakOK_Index(int index)
{
if ( index < 0 || index >= m_length )
{
return FALSE;
}
if ( index == m_length-1 )
{
return LineBreakOK(m_buffer[index], 0);
}
return LineBreakOK(m_buffer[index], m_buffer[index+1]);
}
BOOL EditText::LineBreakOK(U16 ch1, U16 ch2)
// ch1: Last character of current line
// ch2: First character of next line
// return:
// TRUE if it is ok to break this two characters
// FALSE do not break the characters
{
return BreakEnglish(ch1, ch2);
}
void EditText::CalculateLineStarts(int *devCharWidths, int width, int indent)
{
U16 *ptr = m_buffer;
int x = indent;
int maxLineStarts = 16;
BOOL done = FALSE;
U16 *currentBreak = NULL;
delete [] m_lineStarts;
m_lineStarts = new int[maxLineStarts];
m_numLines = 0;
m_lineStarts[0] = 0;
BOOL breakHere = FALSE;
int nextIndent = 0;
while ( !done )
{
switch ( *ptr )
{
case 0:
breakHere = TRUE;
done = TRUE;
break;
case editTextNewline:
ptr++;
breakHere = TRUE;
x = indent;
break;
case editTextSoftNewline:
ptr++;
breakHere = TRUE;
x = 0;
break;
default:
// Regular character
x += devCharWidths[ptr-m_buffer];
if ( (m_flags & seditTextFlagsWordWrap) != 0 && x > width )
{
breakHere = TRUE;
x = 0;
if ( currentBreak )
{
ptr = currentBreak + 1;
}
}
else
{
// Is this character a potential break position?
if ( LineBreakOK(ptr[0], ptr[1]) )
{
currentBreak = ptr;
}
ptr++;
}
}
if ( breakHere )
{
if ( m_numLines >= maxLineStarts-1 )
{
maxLineStarts *= 2;
int *newLineStarts = new int[maxLineStarts];
memcpy(newLineStarts, m_lineStarts, sizeof(int) * (m_numLines+1));
delete [] m_lineStarts;
m_lineStarts = newLineStarts;
}
m_lineStarts[++m_numLines] = ptr - m_buffer;
currentBreak = NULL;
breakHere = FALSE;
}
}
}
// Helper for BuildEdges
RColor* CreateEditTextColor(int red,
int green,
int blue,
int alpha,
int layer,
STransform* x,
SObject* obj)
{
if ( obj->clipDepth )
{
return NULL;
}
RColor* color = obj->display->CreateColor();
if ( !color )
{
return NULL;
}
color->SetUp(&obj->display->raster);
color->nextColor = obj->colors;
obj->colors = color;
color->order = layer;
FLASHASSERT(color->order < 0x10000);
color->rgb.alpha = alpha;
color->rgb.red = red;
color->rgb.green = green;
color->rgb.blue = blue;
if ( x->cxform.HasTransform() )
{
x->cxform.Apply(&color->rgb);
}
color->transparent = PreMulAlpha(&color->rgb);
if ( obj->display->raster.bits )
{
color->BuildCache();
}
return color;
}
// Helper for BuildEdges
void StrokeCursor(SObject* obj,
P_MATRIX mat,
int cursorX,
int cursorTop,
int cursorBottom,
RColor* color,
SStroker* stroker)
{
// Transform cursorTop and cursorBottom into global space
SPOINT topLeft;
topLeft.x = cursorX;
topLeft.y = cursorTop;
MatrixTransformPoint(mat, &topLeft, &topLeft);
SPOINT bottomRight;
bottomRight.x = cursorX;
bottomRight.y = cursorBottom;
MatrixTransformPoint(mat, &bottomRight, &bottomRight);
stroker->BeginStroke(1, color);
CURVE c;
CurveSetLine(&topLeft, &bottomRight, &c);
stroker->AddStrokeCurve(&c);
stroker->EndStroke();
}
// FindGlyph locates the glyph for a particular character code in a font
// and returns the glyph index
U16 EditText::FindGlyph(U16 targetCode, FontDesc& fontDesc)
{
SCharacter* font = fontDesc.font;
U8 *codeTable = font->data + fontDesc.codeOffset;
// Find the glyph for this character using binary search
int lo = 0;
int hi = font->font.nGlyphs-1;
if ( font->font.flags & sfontFlagsWideCodes )
{
while ( lo <= hi )
{
int pivot = (lo+hi)>>1;
U16 testCode = (U16)codeTable[pivot*2] | ((U16)codeTable[pivot*2+1]<<8);
if ( testCode == targetCode )
{
return pivot;
}
else if ( targetCode < testCode )
{
hi = pivot-1;
}
else
{
lo = pivot+1;
}
}
}
else
{
while ( lo <= hi )
{
int pivot = (lo+hi)>>1;
if ( codeTable[pivot] == targetCode )
{
return pivot;
}
else if ( targetCode < codeTable[pivot] )
{
hi = pivot-1;
}
else
{
lo = pivot+1;
}
}
}
return INVALID_CODE;
}
// Converts an array of character codes to an array of glyph indices into
// a particular font. Missing characters are returned as INVALID_CODE.
U16 * EditText::FindGlyphs(U16 *buffer, int length, FontDesc& fontDesc)
{
if ( !length )
{
return NULL;
}
// Convert character codes to glyph indices
U16* glyphs = new U16[length];
U16* dst = glyphs;
while ( length-- )
{
*dst++ = FindGlyph(*buffer++, fontDesc);
}
return glyphs;
}
BOOL EditText::Draw(STransform* x, BOOL buildEdges)
{
ScriptPlayer* player = m_character->player;
SPlayer* splayer = player->splayer;
if ( splayer )
{
if ( !splayer->LoadBuiltInFonts() )
{
return false;
}
}
int startLine, nextLine, visibleLines;
BOOL retval = FALSE;
U8 *advanceTable;
SCharacter* font;
SRGB rgb;
int i, lineno, y;
int devHeight, screenHeight;
RColor* whiteColor, *blackColor, *color, *backRColor;
U8 *s;
U16 *glyphs = NULL;
U16 *buffer = NULL;
MATRIX mat, screenmat;
BOOL mayDrawCursor;
U16 lMargin=0, rMargin=0, indent=0, leading=0;
int devLMargin, devRMargin, devIndent, devLeading, devCurrIndent;
// Set up a stroker for any lines
SStroker* stroker = NULL;
BOOL isFocus = player->splayer &&
player->splayer->focus &&
player->splayer->focus->character == m_character;
mayDrawCursor = isFocus &&
player->splayer->cursorBlink &&
!(m_flags & seditTextFlagsReadOnly);
mat = x->mat;
m_mat = x->mat;
// Device font
screenmat = mat;
if ( player->display->antialias )
{
MATRIX aaToDev;
MatrixScale(fixed_1/4, fixed_1/4, &aaToDev);
MatrixConcat(&screenmat, &aaToDev, &screenmat); // we don't want the supersampled coords
}
// Get font information
FontDesc fontDesc;
GetFontDesc(fontDesc);
m_height = fontDesc.height;
font = fontDesc.font;
SParser parser;
parser.Attach(m_character->data, 0);
// Skip flags
parser.SkipBytes(2);
if ( m_flags & seditTextFlagsHasFont )
{
parser.SkipBytes(4);
}
if ( m_flags & seditTextFlagsHasTextColor )
{
rgb = parser.GetColor(true);
}
else
{
rgb.all = SRGBBlack;
}
if ( m_flags & seditTextFlagsHasMaxLength )
{
parser.SkipBytes(2);
}
if ( m_flags & seditTextFlagsHasLayout )
{
parser.GetByte();
lMargin = parser.GetWord();
rMargin = parser.GetWord();
indent = parser.GetWord();
leading = parser.GetWord();
}
// Calculate widths of characters
delete [] devCharWidths;
devCharWidths = new int[m_length+1];
screenHeight = FixedMul(m_height << 16, screenmat.d) / fixed_1;
if ( !buildEdges && !screenHeight )
{
goto exit_gracefully;
}
if ( buildEdges )
{
// Glyph outline font
stroker = new SStroker(m_obj->display, &m_obj->edges);
stroker->antialias = m_obj->display->antialias;
devHeight = m_height;
// Skip offset and shape tables
parser.Attach(font->data, fontDesc.codeOffset);
// Skip code tables
if ( font->font.flags & sfontFlagsWideCodes )
{
parser.SkipBytes(font->font.nGlyphs * 2);
}
else
{
parser.SkipBytes(font->font.nGlyphs);
}
devAscent = parser.GetWord() * m_height / 1024;
int descent = parser.GetWord() * m_height / 1024;
// Skip leading
parser.SkipBytes(2);
devLineSpacing = devAscent + descent + (short)leading;
advanceTable = (U8*) (parser.script+parser.pos);
// Set up a new color
color = CreateEditTextColor(
rgb.rgb.red,
rgb.rgb.green,
rgb.rgb.blue,
rgb.rgb.transparency,
1, //layer
x, m_obj
);
backRColor = CreateEditTextColor(255, 255, 255, 255, 0, x, m_obj);
blackColor = CreateEditTextColor(0, 0, 0, 255, 2, x, m_obj);
whiteColor = CreateEditTextColor(255, 255, 255, 255, 3, x, m_obj);
if ( m_flags & seditTextFlagsBorder )
{
AddRect(&m_character->bounds, &m_mat, blackColor,
m_obj->display, &m_obj->edges, stroker);
AddRect(&m_character->bounds, &m_mat, backRColor,
m_obj->display, &m_obj->edges, NULL);
}
devBounds = m_character->bounds;
RectInset(2*onePoint, &devBounds);
// Copy left, right margin, indent, leading.. no need to transform
devLMargin = lMargin;
devRMargin = rMargin;
devIndent = indent;
devLeading = leading;
}
else
{
// Device font
mat = screenmat;
if ( !MatrixIsScaleOnly(&mat) )
{
goto exit_gracefully;
}
MatrixTransformRect(&mat, &m_character->bounds, &devBounds);
player->display->raster.Flush();
devHeight = screenHeight;
// Convert left, right margin and indent to device quantities
devLMargin = FixedMul(lMargin << 16, mat.a) / fixed_1;
devRMargin = FixedMul(rMargin << 16, mat.a) / fixed_1;
devIndent = FixedMul(indent << 16, mat.a) / fixed_1;
devLeading = FixedMul(leading << 16, mat.d) / fixed_1;
rgb = x->cxform.Apply(rgb);
devBounds = m_character->bounds;
RectInset(2*onePoint, &devBounds);
MatrixTransformRect(&mat, &devBounds, &devBounds);
}
// Get the buffer
buffer = new U16[m_length + 1];
if ( m_flags & seditTextFlagsPassword )
{
for ( i=0; i m_numLines )
{
lineno = m_numLines - 1;
}
startLine = m_lineStarts[lineno];
MATRIX charMat;
MatrixIdentity(&charMat);
charMat.ty = devBounds.ymin + devAscent;
charMat.a = charMat.d = m_height * (fixed_1/1024);
delete [] m_lineX;
m_lineX = new int[m_numLines+1];
for ( i=0; i<=m_numLines; i++ )
{
m_lineX[i] = 0;
}
devCurrIndent = devIndent;
while ( --visibleLines >= 0 )
{
int cursorTop = y;
int cursorBottom = y + devHeight;
int selectTop = y;
int selectBottom = y + devHeight;
// Find the next line
nextLine = m_lineStarts[min(m_numLines, lineno+1)];
int x = devBounds.xmin + devLMargin + devCurrIndent;
devCurrIndent = 0;
int len = nextLine - startLine;
// Don't render the newline
if ( len )
{
U16 endChar = buffer[startLine+len-1];
if ( endChar == editTextNewline || endChar == editTextSoftNewline )
{
len--;
}
if ( endChar == editTextNewline )
{
devCurrIndent = devIndent;
}
}
if ( m_hscroll > len )
{
len = 0;
}
else
{
len -= m_hscroll;
startLine += m_hscroll;
}
// Compute the X coordinate of each character
int *charX = new int[len + 1];
for ( i=0; i devBounds.xmax - devRMargin )
{
break;
}
}
x += charWidth;
}
charX[i] = x;
len = i;
int xOffset = 0;
switch ( m_align )
{
case stextAlignCenter:
xOffset = (devBounds.xmax - devBounds.xmin - (charX[len] - charX[0])) >> 1;
break;
case stextAlignRight:
xOffset = devBounds.xmax - devBounds.xmin - (charX[len] - charX[0]);
break;
}
if ( xOffset )
{
for ( i=0; i<=len; i++ )
{
charX[i] += xOffset;
}
}
m_lineX[lineno] = charX[0];
lineno++;
int A, B;
if ( m_selectionStart < m_selectionEnd )
{
A = m_selectionStart;
B = m_selectionEnd;
}
else
{
A = m_selectionEnd;
B = m_selectionStart;
}
A -= startLine;
B -= startLine;
if ( B > len )
{
// Selection extends beyond this line
selectBottom = y + devLineSpacing;
}
A = max(0, min(A, len));
B = max(0, min(B, len));
if ( buildEdges )
{
MATRIX m;
for ( i=0; ifont.flags & sfontFlagsWideOffsets )
{
s = font->data + 4*g;
glyphOffset = (U32)s[0] | ((U32)s[1]<<8) | ((U32)s[2]<<16) | ((U32)s[3]<<24);
}
else
{
s = font->data + 2*g;
glyphOffset = (U16)s[0] | ((U16)s[1]<<8);
}
{
SCharacterParser parser(player, font->data, glyphOffset, &m);
parser.useWinding = true;
parser.obj = m_obj;
parser.fillIndex[0] = 0;
parser.lineIndex[0].color = 0;
parser.lineIndex[0].thickness = 0;
if ( i >= A && i < B )
{
parser.fillIndex[1] = whiteColor;
}
else
{
parser.fillIndex[1] = color;
}
parser.nFills = 1;
SCharacterParser* test = &parser;
parser.BuildEdges(false, &m_obj->devBounds);
}
}
}
if ( A != B )
{
SRECT rect;
rect.xmin = charX[A];
rect.ymin = selectTop;
rect.xmax = charX[B];
rect.ymax = selectBottom;
AddRect(&rect, &m_mat, blackColor,
m_obj->display, &m_obj->edges, NULL);
}
}
else
{
if ( m_selectionStart == m_selectionEnd )
{
char *mbcsText = WideToMBCS(buffer+startLine, 0, len);
delete [] mbcsText;
}
else
{
char *mbcsA = WideToMBCS(buffer+startLine, 0, A);
char *mbcsB = WideToMBCS(buffer+startLine, A, B-A);
char *mbcsC = WideToMBCS(buffer+startLine, B, len-B);
delete [] mbcsA;
delete [] mbcsB;
delete [] mbcsC;
}
}
// If edit text has the focus, then maybe draw the cursor
if ( mayDrawCursor )
{
int cursorPos = m_selectionEnd-startLine;
BOOL drawIt = (cursorPos >= 0 && cursorPos < len);
if ( cursorPos == len && (m_atLineEnd || m_selectionEnd >= m_length-1 || len == 0 || buffer[startLine+len] == editTextNewline) )
{
drawIt = TRUE;
}
if ( drawIt )
{
int cursorX = charX[cursorPos];
SPOINT screenPt;
if ( buildEdges )
{
StrokeCursor(m_obj, &m_mat, cursorX, cursorTop, cursorBottom, color, stroker);
screenPt.x = cursorX;
screenPt.y = cursorTop;
MatrixTransformPoint(&screenmat, &screenPt, &screenPt);
}
else
{
screenPt.x = cursorX;
screenPt.y = cursorTop;
}
mayDrawCursor = FALSE;
}
}
delete [] charX;
if ( !buffer[startLine] )
{
break;
}
startLine = nextLine;
y += devLineSpacing;
charMat.ty += devLineSpacing;
}
if ( !(m_flags & seditTextFlagsNoSelect) )
{
// Auto-scroll
AutoScroll();
}
// Signal success!
retval = TRUE;
exit_gracefully:
delete [] glyphs;
delete [] buffer;
delete stroker;
m_drawn = retval;
return retval;
}
void EditText::GetEnabledCommands(int& flags)
{
if ( m_flags & seditTextFlagsNoSelect )
{
// No commands permitted at all
flags = 0;
}
else
{
// Select All is always permitted if selection isn't disabled
flags = kSelectAllEnabled;
BOOL selection = (m_selectionStart != m_selectionEnd);
// Copy is permitted if a selection exists and not in password mode
if ( selection && ((m_flags & seditTextFlagsPassword) == 0) )
{
flags |= kCopyEnabled;
}
if ( (m_flags & seditTextFlagsReadOnly) == 0 )
{
// Cut is enabled if Copy is enabled and not read only
if ( flags & kCopyEnabled )
{
flags |= kCutEnabled;
}
// Clear is enabled if a selection exists and not read only
if ( selection )
{
flags |= kClearEnabled;
}
// Paste is enabled if not read only and clipboard data exists
// For simplicity, Paste is always enabled on UNIX
flags |= kPasteEnabled;
}
}
}
void EditText::UpdateFromVariable()
{
SPlayer* splayer = m_character->player->splayer;
if ( splayer )
{
char *varName;
ScriptThread* thread = splayer->ResolveVariable(m_variable,
m_obj->thread->rootObject->thread,
&varName);
if ( thread && varName[0] )
{
ScriptVariable* var = thread->FindVariable(varName);
if ( var )
{
SetBuffer(var->value);
}
else if ( m_initialText )
{
// The variable is not yet set, set it from the initial value
// in the edit text field.
SetBuffer(m_initialText);
thread->SetVariable(varName, m_initialText, TRUE);
}
}
else if ( m_initialText )
{
SetBuffer(m_initialText);
}
SaveFocus* saveFocus = &splayer->saveFocus;
if ( saveFocus->variable && m_obj->depth == saveFocus->depth && StrEqual(m_variable, saveFocus->variable) )
{
m_selectionStart = saveFocus->selectionStart;
m_selectionEnd = saveFocus->selectionEnd;
m_selecting = saveFocus->selecting;
splayer->focus = m_obj;
}
}
}
//
// SaveFocus object
//
SaveFocus::SaveFocus()
{
Clear();
}
void SaveFocus::Clear()
{
variable = 0;
depth = 0;
selectionStart = 0;
selectionEnd = 0;
selecting = FALSE;
}
void SaveFocus::Save(SPlayer* splayer)
{
if ( splayer && splayer->focus )
{
variable = splayer->focus->editText->m_variable;
depth = splayer->focus->depth;
selectionStart = splayer->focus->editText->m_selectionStart;
selectionEnd = splayer->focus->editText->m_selectionEnd;
selecting = splayer->focus->editText->m_selecting;
}
else
{
Clear();
}
}
#endif // EDITTEXT