lllineeditor.cpp
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- /**
- * @file lllineeditor.cpp
- * @brief LLLineEditor base class
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- // Text editor widget to let users enter a single line.
- #include "linden_common.h"
-
- #define LLLINEEDITOR_CPP
- #include "lllineeditor.h"
- #include "lltexteditor.h"
- #include "llmath.h"
- #include "llfontgl.h"
- #include "llgl.h"
- #include "lltimer.h"
- //#include "llclipboard.h"
- #include "llcontrol.h"
- #include "llbutton.h"
- #include "llfocusmgr.h"
- #include "llkeyboard.h"
- #include "llrect.h"
- #include "llresmgr.h"
- #include "llstring.h"
- #include "llwindow.h"
- #include "llui.h"
- #include "lluictrlfactory.h"
- #include "llclipboard.h"
- #include "llmenugl.h"
- //
- // Imported globals
- //
- //
- // Constants
- //
- const F32 CURSOR_FLASH_DELAY = 1.0f; // in seconds
- const S32 SCROLL_INCREMENT_ADD = 0; // make space for typing
- const S32 SCROLL_INCREMENT_DEL = 4; // make space for baskspacing
- const F32 AUTO_SCROLL_TIME = 0.05f;
- const F32 TRIPLE_CLICK_INTERVAL = 0.3f; // delay between double and triple click. *TODO: make this equal to the double click interval?
- const std::string PASSWORD_ASTERISK( "xE2x80xA2" ); // U+2022 BULLET
- static LLDefaultChildRegistry::Register<LLLineEditor> r1("line_editor");
- // Compiler optimization, generate extern template
- template class LLLineEditor* LLView::getChild<class LLLineEditor>(
- const std::string& name, BOOL recurse) const;
- //
- // Member functions
- //
- LLLineEditor::Params::Params()
- : max_length_bytes("max_length", 254),
- keystroke_callback("keystroke_callback"),
- prevalidate_callback("prevalidate_callback"),
- background_image("background_image"),
- background_image_disabled("background_image_disabled"),
- background_image_focused("background_image_focused"),
- select_on_focus("select_on_focus", false),
- handle_edit_keys_directly("handle_edit_keys_directly", false),
- revert_on_esc("revert_on_esc", true),
- commit_on_focus_lost("commit_on_focus_lost", true),
- ignore_tab("ignore_tab", true),
- cursor_color("cursor_color"),
- text_color("text_color"),
- text_readonly_color("text_readonly_color"),
- text_tentative_color("text_tentative_color"),
- highlight_color("highlight_color"),
- preedit_bg_color("preedit_bg_color"),
- border(""),
- bg_visible("bg_visible"),
- text_pad_left("text_pad_left"),
- text_pad_right("text_pad_right"),
- default_text("default_text")
- {
- mouse_opaque = true;
- addSynonym(select_on_focus, "select_all_on_focus_received");
- addSynonym(border, "border");
- addSynonym(label, "watermark_text");
- }
- LLLineEditor::LLLineEditor(const LLLineEditor::Params& p)
- : LLUICtrl(p),
- mMaxLengthBytes(p.max_length_bytes),
- mCursorPos( 0 ),
- mScrollHPos( 0 ),
- mTextPadLeft(p.text_pad_left),
- mTextPadRight(p.text_pad_right),
- mTextLeftEdge(0), // computed in updateTextPadding() below
- mTextRightEdge(0), // computed in updateTextPadding() below
- mCommitOnFocusLost( p.commit_on_focus_lost ),
- mRevertOnEsc( p.revert_on_esc ),
- mKeystrokeCallback( p.keystroke_callback() ),
- mIsSelecting( FALSE ),
- mSelectionStart( 0 ),
- mSelectionEnd( 0 ),
- mLastSelectionX(-1),
- mLastSelectionY(-1),
- mLastSelectionStart(-1),
- mLastSelectionEnd(-1),
- mBorderThickness( 0 ),
- mIgnoreArrowKeys( FALSE ),
- mIgnoreTab( p.ignore_tab ),
- mDrawAsterixes( FALSE ),
- mHandleEditKeysDirectly(p.handle_edit_keys_directly),
- mSelectAllonFocusReceived( p.select_on_focus ),
- mPassDelete(FALSE),
- mReadOnly(FALSE),
- mBgImage( p.background_image ),
- mBgImageDisabled( p.background_image_disabled ),
- mBgImageFocused( p.background_image_focused ),
- mHaveHistory(FALSE),
- mReplaceNewlinesWithSpaces( TRUE ),
- mLabel(p.label),
- mCursorColor(p.cursor_color()),
- mFgColor(p.text_color()),
- mReadOnlyFgColor(p.text_readonly_color()),
- mTentativeFgColor(p.text_tentative_color()),
- mHighlightColor(p.highlight_color()),
- mPreeditBgColor(p.preedit_bg_color()),
- mGLFont(p.font),
- mContextMenuHandle()
- {
- llassert( mMaxLengthBytes > 0 );
- mScrollTimer.reset();
- mTripleClickTimer.reset();
- setText(p.default_text());
- // Initialize current history line iterator
- mCurrentHistoryLine = mLineHistory.begin();
- LLRect border_rect(getLocalRect());
- // adjust for gl line drawing glitch
- border_rect.mTop -= 1;
- border_rect.mRight -=1;
- LLViewBorder::Params border_p(p.border);
- border_p.rect = border_rect;
- border_p.follows.flags = FOLLOWS_ALL;
- border_p.bevel_style = LLViewBorder::BEVEL_IN;
- mBorder = LLUICtrlFactory::create<LLViewBorder>(border_p);
- addChild( mBorder );
- // clamp text padding to current editor size
- updateTextPadding();
- setCursor(mText.length());
- setPrevalidate(p.prevalidate_callback());
- LLContextMenu* menu = LLUICtrlFactory::instance().createFromFile<LLContextMenu>
- ("menu_text_editor.xml",
- LLMenuGL::sMenuContainer,
- LLMenuHolderGL::child_registry_t::instance());
- setContextMenu(menu);
- }
-
- LLLineEditor::~LLLineEditor()
- {
- mCommitOnFocusLost = FALSE;
- gFocusMgr.releaseFocusIfNeeded( this );
- if( gEditMenuHandler == this )
- {
- gEditMenuHandler = NULL;
- }
- }
- void LLLineEditor::onFocusReceived()
- {
- LLUICtrl::onFocusReceived();
- updateAllowingLanguageInput();
- }
- void LLLineEditor::onFocusLost()
- {
- // The call to updateAllowLanguageInput()
- // when loosing the keyboard focus *may*
- // indirectly invoke handleUnicodeCharHere(),
- // so it must be called before onCommit.
- updateAllowingLanguageInput();
- if( mCommitOnFocusLost && mText.getString() != mPrevText)
- {
- onCommit();
- }
- if( gEditMenuHandler == this )
- {
- gEditMenuHandler = NULL;
- }
- getWindow()->showCursorFromMouseMove();
- LLUICtrl::onFocusLost();
- }
- // virtual
- void LLLineEditor::onCommit()
- {
- // put current line into the line history
- updateHistory();
- setControlValue(getValue());
- LLUICtrl::onCommit();
- selectAll();
- }
- // Returns TRUE if user changed value at all
- // virtual
- BOOL LLLineEditor::isDirty() const
- {
- return mText.getString() != mPrevText;
- }
- // Clear dirty state
- // virtual
- void LLLineEditor::resetDirty()
- {
- mPrevText = mText.getString();
- }
- // assumes UTF8 text
- // virtual
- void LLLineEditor::setValue(const LLSD& value )
- {
- setText(value.asString());
- }
- //virtual
- LLSD LLLineEditor::getValue() const
- {
- return LLSD(getText());
- }
- // line history support
- void LLLineEditor::updateHistory()
- {
- // On history enabled line editors, remember committed line and
- // reset current history line number.
- // Be sure only to remember lines that are not empty and that are
- // different from the last on the list.
- if( mHaveHistory && getLength() )
- {
- if( !mLineHistory.empty() )
- {
- // When not empty, last line of history should always be blank.
- if( mLineHistory.back().empty() )
- {
- // discard the empty line
- mLineHistory.pop_back();
- }
- else
- {
- LL_WARNS("") << "Last line of history was not blank." << LL_ENDL;
- }
- }
- // Add text to history, ignoring duplicates
- if( mLineHistory.empty() || getText() != mLineHistory.back() )
- {
- mLineHistory.push_back( getText() );
- }
- // Restore the blank line and set mCurrentHistoryLine to point at it
- mLineHistory.push_back( "" );
- mCurrentHistoryLine = mLineHistory.end() - 1;
- }
- }
- void LLLineEditor::reshape(S32 width, S32 height, BOOL called_from_parent)
- {
- LLUICtrl::reshape(width, height, called_from_parent);
- updateTextPadding(); // For clamping side-effect.
- setCursor(mCursorPos); // For clamping side-effect.
- }
- void LLLineEditor::setEnabled(BOOL enabled)
- {
- mReadOnly = !enabled;
- setTabStop(!mReadOnly);
- updateAllowingLanguageInput();
- }
- void LLLineEditor::setMaxTextLength(S32 max_text_length)
- {
- S32 max_len = llmax(0, max_text_length);
- mMaxLengthBytes = max_len;
- }
- void LLLineEditor::getTextPadding(S32 *left, S32 *right)
- {
- *left = mTextPadLeft;
- *right = mTextPadRight;
- }
- void LLLineEditor::setTextPadding(S32 left, S32 right)
- {
- mTextPadLeft = left;
- mTextPadRight = right;
- updateTextPadding();
- }
- void LLLineEditor::updateTextPadding()
- {
- mTextLeftEdge = llclamp(mTextPadLeft, 0, getRect().getWidth());
- mTextRightEdge = getRect().getWidth() - llclamp(mTextPadRight, 0, getRect().getWidth());
- }
- void LLLineEditor::setText(const LLStringExplicit &new_text)
- {
- // If new text is identical, don't copy and don't move insertion point
- if (mText.getString() == new_text)
- {
- return;
- }
- // Check to see if entire field is selected.
- S32 len = mText.length();
- BOOL all_selected = (len > 0)
- && (( mSelectionStart == 0 && mSelectionEnd == len )
- || ( mSelectionStart == len && mSelectionEnd == 0 ));
- // Do safe truncation so we don't split multi-byte characters
- // also consider entire string selected when mSelectAllonFocusReceived is set on an empty, focused line editor
- all_selected = all_selected || (len == 0 && hasFocus() && mSelectAllonFocusReceived);
- std::string truncated_utf8 = new_text;
- if (truncated_utf8.size() > (U32)mMaxLengthBytes)
- {
- truncated_utf8 = utf8str_truncate(new_text, mMaxLengthBytes);
- }
- mText.assign(truncated_utf8);
- if (all_selected)
- {
- // ...keep whole thing selected
- selectAll();
- }
- else
- {
- // try to preserve insertion point, but deselect text
- deselect();
- }
- setCursor(llmin((S32)mText.length(), getCursor()));
- // Set current history line to end of history.
- mCurrentHistoryLine = mLineHistory.end() - 1;
- mPrevText = mText;
- }
- // Picks a new cursor position based on the actual screen size of text being drawn.
- void LLLineEditor::setCursorAtLocalPos( S32 local_mouse_x )
- {
- const llwchar* wtext = mText.getWString().c_str();
- LLWString asterix_text;
- if (mDrawAsterixes)
- {
- for (S32 i = 0; i < mText.length(); i++)
- {
- asterix_text += utf8str_to_wstring(PASSWORD_ASTERISK);
- }
- wtext = asterix_text.c_str();
- }
- S32 cursor_pos =
- mScrollHPos +
- mGLFont->charFromPixelOffset(
- wtext, mScrollHPos,
- (F32)(local_mouse_x - mTextLeftEdge),
- (F32)(mTextRightEdge - mTextLeftEdge + 1)); // min-max range is inclusive
- setCursor(cursor_pos);
- }
- void LLLineEditor::setCursor( S32 pos )
- {
- S32 old_cursor_pos = getCursor();
- mCursorPos = llclamp( pos, 0, mText.length());
- // position of end of next character after cursor
- S32 pixels_after_scroll = findPixelNearestPos();
- if( pixels_after_scroll > mTextRightEdge )
- {
- S32 width_chars_to_left = mGLFont->getWidth(mText.getWString().c_str(), 0, mScrollHPos);
- S32 last_visible_char = mGLFont->maxDrawableChars(mText.getWString().c_str(), llmax(0.f, (F32)(mTextRightEdge - mTextLeftEdge + width_chars_to_left)));
- // character immediately to left of cursor should be last one visible (SCROLL_INCREMENT_ADD will scroll in more characters)
- // or first character if cursor is at beginning
- S32 new_last_visible_char = llmax(0, getCursor() - 1);
- S32 min_scroll = mGLFont->firstDrawableChar(mText.getWString().c_str(), (F32)(mTextRightEdge - mTextLeftEdge), mText.length(), new_last_visible_char);
- if (old_cursor_pos == last_visible_char)
- {
- mScrollHPos = llmin(mText.length(), llmax(min_scroll, mScrollHPos + SCROLL_INCREMENT_ADD));
- }
- else
- {
- mScrollHPos = min_scroll;
- }
- }
- else if (getCursor() < mScrollHPos)
- {
- if (old_cursor_pos == mScrollHPos)
- {
- mScrollHPos = llmax(0, llmin(getCursor(), mScrollHPos - SCROLL_INCREMENT_DEL));
- }
- else
- {
- mScrollHPos = getCursor();
- }
- }
- }
- void LLLineEditor::setCursorToEnd()
- {
- setCursor(mText.length());
- deselect();
- }
- BOOL LLLineEditor::canDeselect() const
- {
- return hasSelection();
- }
- void LLLineEditor::deselect()
- {
- mSelectionStart = 0;
- mSelectionEnd = 0;
- mIsSelecting = FALSE;
- }
- void LLLineEditor::startSelection()
- {
- mIsSelecting = TRUE;
- mSelectionStart = getCursor();
- mSelectionEnd = getCursor();
- }
- void LLLineEditor::endSelection()
- {
- if( mIsSelecting )
- {
- mIsSelecting = FALSE;
- mSelectionEnd = getCursor();
- }
- }
- BOOL LLLineEditor::canSelectAll() const
- {
- return TRUE;
- }
- void LLLineEditor::selectAll()
- {
- mSelectionStart = mText.length();
- mSelectionEnd = 0;
- setCursor(mSelectionEnd);
- //mScrollHPos = 0;
- mIsSelecting = TRUE;
- }
- BOOL LLLineEditor::handleDoubleClick(S32 x, S32 y, MASK mask)
- {
- setFocus( TRUE );
- mTripleClickTimer.setTimerExpirySec(TRIPLE_CLICK_INTERVAL);
- if (mSelectionEnd == 0 && mSelectionStart == mText.length())
- {
- // if everything is selected, handle this as a normal click to change insertion point
- handleMouseDown(x, y, mask);
- }
- else
- {
- const LLWString& wtext = mText.getWString();
- BOOL doSelectAll = TRUE;
- // Select the word we're on
- if( LLWStringUtil::isPartOfWord( wtext[mCursorPos] ) )
- {
- S32 old_selection_start = mLastSelectionStart;
- S32 old_selection_end = mLastSelectionEnd;
- // Select word the cursor is over
- while ((mCursorPos > 0) && LLWStringUtil::isPartOfWord( wtext[mCursorPos-1] ))
- { // Find the start of the word
- mCursorPos--;
- }
- startSelection();
- while ((mCursorPos < (S32)wtext.length()) && LLWStringUtil::isPartOfWord( wtext[mCursorPos] ) )
- { // Find the end of the word
- mCursorPos++;
- }
- mSelectionEnd = mCursorPos;
- // If nothing changed, then the word was already selected. Select the whole line.
- doSelectAll = (old_selection_start == mSelectionStart) &&
- (old_selection_end == mSelectionEnd);
- }
-
- if ( doSelectAll )
- { // Select everything
- selectAll();
- }
- }
- // We don't want handleMouseUp() to "finish" the selection (and thereby
- // set mSelectionEnd to where the mouse is), so we finish the selection
- // here.
- mIsSelecting = FALSE;
- // delay cursor flashing
- mKeystrokeTimer.reset();
- // take selection to 'primary' clipboard
- updatePrimary();
- return TRUE;
- }
- BOOL LLLineEditor::handleMouseDown(S32 x, S32 y, MASK mask)
- {
- // Check first whether the "clear search" button wants to deal with this.
- if(childrenHandleMouseDown(x, y, mask) != NULL)
- {
- return TRUE;
- }
-
- if (!mSelectAllonFocusReceived
- || gFocusMgr.getKeyboardFocus() == this)
- {
- mLastSelectionStart = -1;
- mLastSelectionStart = -1;
- if (mask & MASK_SHIFT)
- {
- // Handle selection extension
- S32 old_cursor_pos = getCursor();
- setCursorAtLocalPos(x);
- if (hasSelection())
- {
- /* Mac-like behavior - extend selection towards the cursor
- if (getCursor() < mSelectionStart
- && getCursor() < mSelectionEnd)
- {
- // ...left of selection
- mSelectionStart = llmax(mSelectionStart, mSelectionEnd);
- mSelectionEnd = getCursor();
- }
- else if (getCursor() > mSelectionStart
- && getCursor() > mSelectionEnd)
- {
- // ...right of selection
- mSelectionStart = llmin(mSelectionStart, mSelectionEnd);
- mSelectionEnd = getCursor();
- }
- else
- {
- mSelectionEnd = getCursor();
- }
- */
- // Windows behavior
- mSelectionEnd = getCursor();
- }
- else
- {
- mSelectionStart = old_cursor_pos;
- mSelectionEnd = getCursor();
- }
- // assume we're starting a drag select
- mIsSelecting = TRUE;
- }
- else
- {
- if (mTripleClickTimer.hasExpired())
- {
- // Save selection for word/line selecting on double-click
- mLastSelectionStart = mSelectionStart;
- mLastSelectionEnd = mSelectionEnd;
- // Move cursor and deselect for regular click
- setCursorAtLocalPos( x );
- deselect();
- startSelection();
- }
- else // handle triple click
- {
- selectAll();
- // We don't want handleMouseUp() to "finish" the selection (and thereby
- // set mSelectionEnd to where the mouse is), so we finish the selection
- // here.
- mIsSelecting = FALSE;
- }
- }
- gFocusMgr.setMouseCapture( this );
- }
- setFocus(TRUE);
- // delay cursor flashing
- mKeystrokeTimer.reset();
-
- if (mMouseDownSignal)
- (*mMouseDownSignal)(this,x,y,mask);
- return TRUE;
- }
- BOOL LLLineEditor::handleMiddleMouseDown(S32 x, S32 y, MASK mask)
- {
- // llinfos << "MiddleMouseDown" << llendl;
- setFocus( TRUE );
- if( canPastePrimary() )
- {
- setCursorAtLocalPos(x);
- pastePrimary();
- }
- return TRUE;
- }
- BOOL LLLineEditor::handleRightMouseDown(S32 x, S32 y, MASK mask)
- {
- setFocus(TRUE);
- if (!LLUICtrl::handleRightMouseDown(x, y, mask))
- {
- showContextMenu(x, y);
- }
- return TRUE;
- }
- BOOL LLLineEditor::handleHover(S32 x, S32 y, MASK mask)
- {
- BOOL handled = FALSE;
- // Check first whether the "clear search" button wants to deal with this.
- if(!hasMouseCapture())
- {
- if(childrenHandleHover(x, y, mask) != NULL)
- {
- return TRUE;
- }
- }
- if( (hasMouseCapture()) && mIsSelecting )
- {
- if (x != mLastSelectionX || y != mLastSelectionY)
- {
- mLastSelectionX = x;
- mLastSelectionY = y;
- }
- // Scroll if mouse cursor outside of bounds
- if (mScrollTimer.hasExpired())
- {
- S32 increment = llround(mScrollTimer.getElapsedTimeF32() / AUTO_SCROLL_TIME);
- mScrollTimer.reset();
- mScrollTimer.setTimerExpirySec(AUTO_SCROLL_TIME);
- if( (x < mTextLeftEdge) && (mScrollHPos > 0 ) )
- {
- // Scroll to the left
- mScrollHPos = llclamp(mScrollHPos - increment, 0, mText.length());
- }
- else
- if( (x > mTextRightEdge) && (mCursorPos < (S32)mText.length()) )
- {
- // If scrolling one pixel would make a difference...
- S32 pixels_after_scrolling_one_char = findPixelNearestPos(1);
- if( pixels_after_scrolling_one_char >= mTextRightEdge )
- {
- // ...scroll to the right
- mScrollHPos = llclamp(mScrollHPos + increment, 0, mText.length());
- }
- }
- }
- setCursorAtLocalPos( x );
- mSelectionEnd = getCursor();
- // delay cursor flashing
- mKeystrokeTimer.reset();
- getWindow()->setCursor(UI_CURSOR_IBEAM);
- lldebugst(LLERR_USER_INPUT) << "hover handled by " << getName() << " (active)" << llendl;
- handled = TRUE;
- }
- if( !handled )
- {
- getWindow()->setCursor(UI_CURSOR_IBEAM);
- lldebugst(LLERR_USER_INPUT) << "hover handled by " << getName() << " (inactive)" << llendl;
- handled = TRUE;
- }
- return handled;
- }
- BOOL LLLineEditor::handleMouseUp(S32 x, S32 y, MASK mask)
- {
- BOOL handled = FALSE;
- if( hasMouseCapture() )
- {
- gFocusMgr.setMouseCapture( NULL );
- handled = TRUE;
- }
- // Check first whether the "clear search" button wants to deal with this.
- if(!handled && childrenHandleMouseUp(x, y, mask) != NULL)
- {
- return TRUE;
- }
- if( mIsSelecting )
- {
- setCursorAtLocalPos( x );
- mSelectionEnd = getCursor();
- handled = TRUE;
- }
- if( handled )
- {
- // delay cursor flashing
- mKeystrokeTimer.reset();
- // take selection to 'primary' clipboard
- updatePrimary();
- }
-
- // We won't call LLUICtrl::handleMouseUp to avoid double calls of childrenHandleMouseUp().Just invoke the signal manually.
- if (mMouseUpSignal)
- (*mMouseUpSignal)(this,x,y, mask);
- return handled;
- }
- // Remove a single character from the text
- void LLLineEditor::removeChar()
- {
- if( getCursor() > 0 )
- {
- mText.erase(getCursor() - 1, 1);
- setCursor(getCursor() - 1);
- }
- else
- {
- reportBadKeystroke();
- }
- }
- void LLLineEditor::addChar(const llwchar uni_char)
- {
- llwchar new_c = uni_char;
- if (hasSelection())
- {
- deleteSelection();
- }
- else if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode())
- {
- mText.erase(getCursor(), 1);
- }
- S32 cur_bytes = mText.getString().size();
- S32 new_bytes = wchar_utf8_length(new_c);
- BOOL allow_char = TRUE;
- // Check byte length limit
- if ((new_bytes + cur_bytes) > mMaxLengthBytes)
- {
- allow_char = FALSE;
- }
- if (allow_char)
- {
- // Will we need to scroll?
- LLWString w_buf;
- w_buf.assign(1, new_c);
- mText.insert(getCursor(), w_buf);
- setCursor(getCursor() + 1);
- }
- else
- {
- reportBadKeystroke();
- }
- getWindow()->hideCursorUntilMouseMove();
- }
- // Extends the selection box to the new cursor position
- void LLLineEditor::extendSelection( S32 new_cursor_pos )
- {
- if( !mIsSelecting )
- {
- startSelection();
- }
-
- setCursor(new_cursor_pos);
- mSelectionEnd = getCursor();
- }
- void LLLineEditor::setSelection(S32 start, S32 end)
- {
- S32 len = mText.length();
- mIsSelecting = TRUE;
- // JC, yes, this seems odd, but I think you have to presume a
- // selection dragged from the end towards the start.
- mSelectionStart = llclamp(end, 0, len);
- mSelectionEnd = llclamp(start, 0, len);
- setCursor(start);
- }
- void LLLineEditor::setDrawAsterixes(BOOL b)
- {
- mDrawAsterixes = b;
- updateAllowingLanguageInput();
- }
- S32 LLLineEditor::prevWordPos(S32 cursorPos) const
- {
- const LLWString& wtext = mText.getWString();
- while( (cursorPos > 0) && (wtext[cursorPos-1] == ' ') )
- {
- cursorPos--;
- }
- while( (cursorPos > 0) && LLWStringUtil::isPartOfWord( wtext[cursorPos-1] ) )
- {
- cursorPos--;
- }
- return cursorPos;
- }
- S32 LLLineEditor::nextWordPos(S32 cursorPos) const
- {
- const LLWString& wtext = mText.getWString();
- while( (cursorPos < getLength()) && LLWStringUtil::isPartOfWord( wtext[cursorPos] ) )
- {
- cursorPos++;
- }
- while( (cursorPos < getLength()) && (wtext[cursorPos] == ' ') )
- {
- cursorPos++;
- }
- return cursorPos;
- }
- BOOL LLLineEditor::handleSelectionKey(KEY key, MASK mask)
- {
- BOOL handled = FALSE;
- if( mask & MASK_SHIFT )
- {
- handled = TRUE;
- switch( key )
- {
- case KEY_LEFT:
- if( 0 < getCursor() )
- {
- S32 cursorPos = getCursor() - 1;
- if( mask & MASK_CONTROL )
- {
- cursorPos = prevWordPos(cursorPos);
- }
- extendSelection( cursorPos );
- }
- else
- {
- reportBadKeystroke();
- }
- break;
- case KEY_RIGHT:
- if( getCursor() < mText.length())
- {
- S32 cursorPos = getCursor() + 1;
- if( mask & MASK_CONTROL )
- {
- cursorPos = nextWordPos(cursorPos);
- }
- extendSelection( cursorPos );
- }
- else
- {
- reportBadKeystroke();
- }
- break;
- case KEY_PAGE_UP:
- case KEY_HOME:
- extendSelection( 0 );
- break;
-
- case KEY_PAGE_DOWN:
- case KEY_END:
- {
- S32 len = mText.length();
- if( len )
- {
- extendSelection( len );
- }
- break;
- }
- default:
- handled = FALSE;
- break;
- }
- }
- if (!handled && mHandleEditKeysDirectly)
- {
- if( (MASK_CONTROL & mask) && ('A' == key) )
- {
- if( canSelectAll() )
- {
- selectAll();
- }
- else
- {
- reportBadKeystroke();
- }
- handled = TRUE;
- }
- }
- if(handled)
- {
- // take selection to 'primary' clipboard
- updatePrimary();
- }
-
- return handled;
- }
- void LLLineEditor::deleteSelection()
- {
- if( !mReadOnly && hasSelection() )
- {
- S32 left_pos = llmin( mSelectionStart, mSelectionEnd );
- S32 selection_length = llabs( mSelectionStart - mSelectionEnd );
- mText.erase(left_pos, selection_length);
- deselect();
- setCursor(left_pos);
- }
- }
- BOOL LLLineEditor::canCut() const
- {
- return !mReadOnly && !mDrawAsterixes && hasSelection();
- }
- // cut selection to clipboard
- void LLLineEditor::cut()
- {
- if( canCut() )
- {
- // Prepare for possible rollback
- LLLineEditorRollback rollback( this );
- S32 left_pos = llmin( mSelectionStart, mSelectionEnd );
- S32 length = llabs( mSelectionStart - mSelectionEnd );
- gClipboard.copyFromSubstring( mText.getWString(), left_pos, length );
- deleteSelection();
- // Validate new string and rollback the if needed.
- BOOL need_to_rollback = ( mPrevalidateFunc && !mPrevalidateFunc( mText.getWString() ) );
- if( need_to_rollback )
- {
- rollback.doRollback( this );
- reportBadKeystroke();
- }
- else
- if( mKeystrokeCallback )
- {
- mKeystrokeCallback( this );
- }
- }
- }
- BOOL LLLineEditor::canCopy() const
- {
- return !mDrawAsterixes && hasSelection();
- }
- // copy selection to clipboard
- void LLLineEditor::copy()
- {
- if( canCopy() )
- {
- S32 left_pos = llmin( mSelectionStart, mSelectionEnd );
- S32 length = llabs( mSelectionStart - mSelectionEnd );
- gClipboard.copyFromSubstring( mText.getWString(), left_pos, length );
- }
- }
- BOOL LLLineEditor::canPaste() const
- {
- return !mReadOnly && gClipboard.canPasteString();
- }
- void LLLineEditor::paste()
- {
- bool is_primary = false;
- pasteHelper(is_primary);
- }
- void LLLineEditor::pastePrimary()
- {
- bool is_primary = true;
- pasteHelper(is_primary);
- }
- // paste from primary (is_primary==true) or clipboard (is_primary==false)
- void LLLineEditor::pasteHelper(bool is_primary)
- {
- bool can_paste_it;
- if (is_primary)
- {
- can_paste_it = canPastePrimary();
- }
- else
- {
- can_paste_it = canPaste();
- }
- if (can_paste_it)
- {
- LLWString paste;
- if (is_primary)
- {
- paste = gClipboard.getPastePrimaryWString();
- }
- else
- {
- paste = gClipboard.getPasteWString();
- }
- if (!paste.empty())
- {
- // Prepare for possible rollback
- LLLineEditorRollback rollback(this);
-
- // Delete any selected characters
- if ((!is_primary) && hasSelection())
- {
- deleteSelection();
- }
- // Clean up string (replace tabs and returns and remove characters that our fonts don't support.)
- LLWString clean_string(paste);
- LLWStringUtil::replaceTabsWithSpaces(clean_string, 1);
- //clean_string = wstring_detabify(paste, 1);
- LLWStringUtil::replaceChar(clean_string, 'n', mReplaceNewlinesWithSpaces ? ' ' : 182); // 182 == paragraph character
- // Insert the string
- // Check to see that the size isn't going to be larger than the max number of bytes
- U32 available_bytes = mMaxLengthBytes - wstring_utf8_length(mText);
- if ( available_bytes < (U32) wstring_utf8_length(clean_string) )
- { // Doesn't all fit
- llwchar current_symbol = clean_string[0];
- U32 wchars_that_fit = 0;
- U32 total_bytes = wchar_utf8_length(current_symbol);
- //loop over the "wide" characters (symbols)
- //and check to see how large (in bytes) each symbol is.
- while ( total_bytes <= available_bytes )
- {
- //while we still have available bytes
- //"accept" the current symbol and check the size
- //of the next one
- current_symbol = clean_string[++wchars_that_fit];
- total_bytes += wchar_utf8_length(current_symbol);
- }
- // Truncate the clean string at the limit of what will fit
- clean_string = clean_string.substr(0, wchars_that_fit);
- reportBadKeystroke();
- }
-
- mText.insert(getCursor(), clean_string);
- setCursor( getCursor() + (S32)clean_string.length() );
- deselect();
- // Validate new string and rollback the if needed.
- BOOL need_to_rollback = ( mPrevalidateFunc && !mPrevalidateFunc( mText.getWString() ) );
- if( need_to_rollback )
- {
- rollback.doRollback( this );
- reportBadKeystroke();
- }
- else
- if( mKeystrokeCallback )
- {
- mKeystrokeCallback( this );
- }
- }
- }
- }
- // copy selection to primary
- void LLLineEditor::copyPrimary()
- {
- if( canCopy() )
- {
- S32 left_pos = llmin( mSelectionStart, mSelectionEnd );
- S32 length = llabs( mSelectionStart - mSelectionEnd );
- gClipboard.copyFromPrimarySubstring( mText.getWString(), left_pos, length );
- }
- }
- BOOL LLLineEditor::canPastePrimary() const
- {
- return !mReadOnly && gClipboard.canPastePrimaryString();
- }
- void LLLineEditor::updatePrimary()
- {
- if(canCopy() )
- {
- copyPrimary();
- }
- }
- BOOL LLLineEditor::handleSpecialKey(KEY key, MASK mask)
- {
- BOOL handled = FALSE;
- switch( key )
- {
- case KEY_INSERT:
- if (mask == MASK_NONE)
- {
- gKeyboard->toggleInsertMode();
- }
- handled = TRUE;
- break;
- case KEY_BACKSPACE:
- if (!mReadOnly)
- {
- //llinfos << "Handling backspace" << llendl;
- if( hasSelection() )
- {
- deleteSelection();
- }
- else
- if( 0 < getCursor() )
- {
- removeChar();
- }
- else
- {
- reportBadKeystroke();
- }
- }
- handled = TRUE;
- break;
- case KEY_PAGE_UP:
- case KEY_HOME:
- if (!mIgnoreArrowKeys)
- {
- setCursor(0);
- handled = TRUE;
- }
- break;
- case KEY_PAGE_DOWN:
- case KEY_END:
- if (!mIgnoreArrowKeys)
- {
- S32 len = mText.length();
- if( len )
- {
- setCursor(len);
- }
- handled = TRUE;
- }
- break;
- case KEY_LEFT:
- if (mIgnoreArrowKeys && mask == MASK_NONE)
- break;
- if ((mask & MASK_ALT) == 0)
- {
- if( hasSelection() )
- {
- setCursor(llmin( getCursor() - 1, mSelectionStart, mSelectionEnd ));
- }
- else
- if( 0 < getCursor() )
- {
- S32 cursorPos = getCursor() - 1;
- if( mask & MASK_CONTROL )
- {
- cursorPos = prevWordPos(cursorPos);
- }
- setCursor(cursorPos);
- }
- else
- {
- reportBadKeystroke();
- }
- handled = TRUE;
- }
- break;
- case KEY_RIGHT:
- if (mIgnoreArrowKeys && mask == MASK_NONE)
- break;
- if ((mask & MASK_ALT) == 0)
- {
- if (hasSelection())
- {
- setCursor(llmax(getCursor() + 1, mSelectionStart, mSelectionEnd));
- }
- else
- if (getCursor() < mText.length())
- {
- S32 cursorPos = getCursor() + 1;
- if( mask & MASK_CONTROL )
- {
- cursorPos = nextWordPos(cursorPos);
- }
- setCursor(cursorPos);
- }
- else
- {
- reportBadKeystroke();
- }
- handled = TRUE;
- }
- break;
- // handle ctrl-uparrow if we have a history enabled line editor.
- case KEY_UP:
- if( mHaveHistory && ( MASK_CONTROL == mask ) )
- {
- if( mCurrentHistoryLine > mLineHistory.begin() )
- {
- mText.assign( *(--mCurrentHistoryLine) );
- setCursor(llmin((S32)mText.length(), getCursor()));
- }
- else
- {
- reportBadKeystroke();
- }
- handled = TRUE;
- }
- break;
- // handle ctrl-downarrow if we have a history enabled line editor
- case KEY_DOWN:
- if( mHaveHistory && ( MASK_CONTROL == mask ) )
- {
- if( !mLineHistory.empty() && mCurrentHistoryLine < mLineHistory.end() - 1 )
- {
- mText.assign( *(++mCurrentHistoryLine) );
- setCursor(llmin((S32)mText.length(), getCursor()));
- }
- else
- {
- reportBadKeystroke();
- }
- handled = TRUE;
- }
- break;
- case KEY_RETURN:
- // store sent line in history
- updateHistory();
- break;
- case KEY_ESCAPE:
- if (mRevertOnEsc && mText.getString() != mPrevText)
- {
- setText(mPrevText);
- // Note, don't set handled, still want to loose focus (won't commit becase text is now unchanged)
- }
- break;
-
- default:
- break;
- }
- if( !handled && mHandleEditKeysDirectly )
- {
- // Standard edit keys (Ctrl-X, Delete, etc,) are handled here instead of routed by the menu system.
- if( KEY_DELETE == key )
- {
- if( canDoDelete() )
- {
- doDelete();
- }
- else
- {
- reportBadKeystroke();
- }
- handled = TRUE;
- }
- else
- if( MASK_CONTROL & mask )
- {
- if( 'C' == key )
- {
- if( canCopy() )
- {
- copy();
- }
- else
- {
- reportBadKeystroke();
- }
- handled = TRUE;
- }
- else
- if( 'V' == key )
- {
- if( canPaste() )
- {
- paste();
- }
- else
- {
- reportBadKeystroke();
- }
- handled = TRUE;
- }
- else
- if( 'X' == key )
- {
- if( canCut() )
- {
- cut();
- }
- else
- {
- reportBadKeystroke();
- }
- handled = TRUE;
- }
- }
- }
- return handled;
- }
- BOOL LLLineEditor::handleKeyHere(KEY key, MASK mask )
- {
- BOOL handled = FALSE;
- BOOL selection_modified = FALSE;
- if ( gFocusMgr.getKeyboardFocus() == this )
- {
- LLLineEditorRollback rollback( this );
- if( !handled )
- {
- handled = handleSelectionKey( key, mask );
- selection_modified = handled;
- }
-
- // Handle most keys only if the text editor is writeable.
- if ( !mReadOnly )
- {
- if( !handled )
- {
- handled = handleSpecialKey( key, mask );
- }
- }
- if( handled )
- {
- mKeystrokeTimer.reset();
- // Most keystrokes will make the selection box go away, but not all will.
- if( !selection_modified &&
- KEY_SHIFT != key &&
- KEY_CONTROL != key &&
- KEY_ALT != key &&
- KEY_CAPSLOCK )
- {
- deselect();
- }
- BOOL need_to_rollback = FALSE;
- // If read-only, don't allow changes
- need_to_rollback |= (mReadOnly && (mText.getString() == rollback.getText()));
- // Validate new string and rollback the keystroke if needed.
- need_to_rollback |= (mPrevalidateFunc && !mPrevalidateFunc(mText.getWString()));
- if (need_to_rollback)
- {
- rollback.doRollback(this);
- reportBadKeystroke();
- }
- // Notify owner if requested
- if (!need_to_rollback && handled)
- {
- if (mKeystrokeCallback)
- {
- mKeystrokeCallback(this);
- }
- }
- }
- }
- return handled;
- }
- BOOL LLLineEditor::handleUnicodeCharHere(llwchar uni_char)
- {
- if ((uni_char < 0x20) || (uni_char == 0x7F)) // Control character or DEL
- {
- return FALSE;
- }
- BOOL handled = FALSE;
- if ( (gFocusMgr.getKeyboardFocus() == this) && getVisible() && !mReadOnly)
- {
- handled = TRUE;
- LLLineEditorRollback rollback( this );
- addChar(uni_char);
- mKeystrokeTimer.reset();
- deselect();
- BOOL need_to_rollback = FALSE;
- // Validate new string and rollback the keystroke if needed.
- need_to_rollback |= ( mPrevalidateFunc && !mPrevalidateFunc( mText.getWString() ) );
- if( need_to_rollback )
- {
- rollback.doRollback( this );
- reportBadKeystroke();
- }
- // Notify owner if requested
- if( !need_to_rollback && handled )
- {
- if( mKeystrokeCallback )
- {
- // HACK! The only usage of this callback doesn't do anything with the character.
- // We'll have to do something about this if something ever changes! - Doug
- mKeystrokeCallback( this );
- }
- }
- }
- return handled;
- }
- BOOL LLLineEditor::canDoDelete() const
- {
- return ( !mReadOnly && (!mPassDelete || (hasSelection() || (getCursor() < mText.length()))) );
- }
- void LLLineEditor::doDelete()
- {
- if (canDoDelete())
- {
- // Prepare for possible rollback
- LLLineEditorRollback rollback( this );
- if (hasSelection())
- {
- deleteSelection();
- }
- else if ( getCursor() < mText.length())
- {
- setCursor(getCursor() + 1);
- removeChar();
- }
- // Validate new string and rollback the if needed.
- BOOL need_to_rollback = ( mPrevalidateFunc && !mPrevalidateFunc( mText.getWString() ) );
- if( need_to_rollback )
- {
- rollback.doRollback( this );
- reportBadKeystroke();
- }
- else
- {
- if( mKeystrokeCallback )
- {
- mKeystrokeCallback( this );
- }
- }
- }
- }
- void LLLineEditor::drawBackground()
- {
- bool has_focus = hasFocus();
- LLUIImage* image;
- if ( mReadOnly )
- {
- image = mBgImageDisabled;
- }
- else if ( has_focus )
- {
- image = mBgImageFocused;
- }
- else
- {
- image = mBgImage;
- }
-
- F32 alpha = getDrawContext().mAlpha;
- // optionally draw programmatic border
- if (has_focus)
- {
- LLColor4 tmp_color = gFocusMgr.getFocusColor();
- tmp_color.setAlpha(alpha);
- image->drawBorder(0, 0, getRect().getWidth(), getRect().getHeight(),
- tmp_color,
- gFocusMgr.getFocusFlashWidth());
- }
- LLColor4 tmp_color = UI_VERTEX_COLOR;
- tmp_color.setAlpha(alpha);
- image->draw(getLocalRect(), tmp_color);
- }
- void LLLineEditor::draw()
- {
- F32 alpha = getDrawContext().mAlpha;
- S32 text_len = mText.length();
- static LLUICachedControl<S32> lineeditor_cursor_thickness ("UILineEditorCursorThickness", 0);
- static LLUICachedControl<F32> preedit_marker_brightness ("UIPreeditMarkerBrightness", 0);
- static LLUICachedControl<S32> preedit_marker_gap ("UIPreeditMarkerGap", 0);
- static LLUICachedControl<S32> preedit_marker_position ("UIPreeditMarkerPosition", 0);
- static LLUICachedControl<S32> preedit_marker_thickness ("UIPreeditMarkerThickness", 0);
- static LLUICachedControl<F32> preedit_standout_brightness ("UIPreeditStandoutBrightness", 0);
- static LLUICachedControl<S32> preedit_standout_gap ("UIPreeditStandoutGap", 0);
- static LLUICachedControl<S32> preedit_standout_position ("UIPreeditStandoutPosition", 0);
- static LLUICachedControl<S32> preedit_standout_thickness ("UIPreeditStandoutThickness", 0);
- std::string saved_text;
- if (mDrawAsterixes)
- {
- saved_text = mText.getString();
- std::string text;
- for (S32 i = 0; i < mText.length(); i++)
- {
- text += PASSWORD_ASTERISK;
- }
- mText = text;
- }
- // draw rectangle for the background
- LLRect background( 0, getRect().getHeight(), getRect().getWidth(), 0 );
- background.stretch( -mBorderThickness );
- S32 lineeditor_v_pad = llround((background.getHeight() - mGLFont->getLineHeight())/2);
- drawBackground();
-
- // draw text
- // With viewer-2 art files, input region is 2 pixels up
- S32 cursor_bottom = background.mBottom + 2;
- S32 cursor_top = background.mTop - 1;
- LLColor4 text_color;
- if (!mReadOnly)
- {
- if (!getTentative())
- {
- text_color = mFgColor.get();
- }
- else
- {
- text_color = mTentativeFgColor.get();
- }
- }
- else
- {
- text_color = mReadOnlyFgColor.get();
- }
- text_color.setAlpha(alpha);
- LLColor4 label_color = mTentativeFgColor.get();
- label_color.setAlpha(alpha);
-
- if (hasPreeditString())
- {
- // Draw preedit markers. This needs to be before drawing letters.
- for (U32 i = 0; i < mPreeditStandouts.size(); i++)
- {
- const S32 preedit_left = mPreeditPositions[i];
- const S32 preedit_right = mPreeditPositions[i + 1];
- if (preedit_right > mScrollHPos)
- {
- S32 preedit_pixels_left = findPixelNearestPos(llmax(preedit_left, mScrollHPos) - getCursor());
- S32 preedit_pixels_right = llmin(findPixelNearestPos(preedit_right - getCursor()), background.mRight);
- if (preedit_pixels_left >= background.mRight)
- {
- break;
- }
- if (mPreeditStandouts[i])
- {
- gl_rect_2d(preedit_pixels_left + preedit_standout_gap,
- background.mBottom + preedit_standout_position,
- preedit_pixels_right - preedit_standout_gap - 1,
- background.mBottom + preedit_standout_position - preedit_standout_thickness,
- (text_color * preedit_standout_brightness
- + mPreeditBgColor * (1 - preedit_standout_brightness)).setAlpha(alpha/*1.0f*/));
- }
- else
- {
- gl_rect_2d(preedit_pixels_left + preedit_marker_gap,
- background.mBottom + preedit_marker_position,
- preedit_pixels_right - preedit_marker_gap - 1,
- background.mBottom + preedit_marker_position - preedit_marker_thickness,
- (text_color * preedit_marker_brightness
- + mPreeditBgColor * (1 - preedit_marker_brightness)).setAlpha(alpha/*1.0f*/));
- }
- }
- }
- }
- S32 rendered_text = 0;
- F32 rendered_pixels_right = (F32)mTextLeftEdge;
- F32 text_bottom = (F32)background.mBottom + (F32)lineeditor_v_pad;
- if( (gFocusMgr.getKeyboardFocus() == this) && hasSelection() )
- {
- S32 select_left;
- S32 select_right;
- if( mSelectionStart < getCursor() )
- {
- select_left = mSelectionStart;
- select_right = getCursor();
- }
- else
- {
- select_left = getCursor();
- select_right = mSelectionStart;
- }
-
- if( select_left > mScrollHPos )
- {
- // unselected, left side
- rendered_text = mGLFont->render(
- mText, mScrollHPos,
- rendered_pixels_right, text_bottom,
- text_color,
- LLFontGL::LEFT, LLFontGL::BOTTOM,
- 0,
- LLFontGL::NO_SHADOW,
- select_left - mScrollHPos,
- mTextRightEdge - llround(rendered_pixels_right),
- &rendered_pixels_right);
- }
-
- if( (rendered_pixels_right < (F32)mTextRightEdge) && (rendered_text < text_len) )
- {
- LLColor4 color = mHighlightColor;
- color.setAlpha(alpha);
- // selected middle
- S32 width = mGLFont->getWidth(mText.getWString().c_str(), mScrollHPos + rendered_text, select_right - mScrollHPos - rendered_text);
- width = llmin(width, mTextRightEdge - llround(rendered_pixels_right));
- gl_rect_2d(llround(rendered_pixels_right), cursor_top, llround(rendered_pixels_right)+width, cursor_bottom, color);
- LLColor4 tmp_color( 1.f - text_color.mV[0], 1.f - text_color.mV[1], 1.f - text_color.mV[2], alpha );
- rendered_text += mGLFont->render(
- mText, mScrollHPos + rendered_text,
- rendered_pixels_right, text_bottom,
- tmp_color,
- LLFontGL::LEFT, LLFontGL::BOTTOM,
- 0,
- LLFontGL::NO_SHADOW,
- select_right - mScrollHPos - rendered_text,
- mTextRightEdge - llround(rendered_pixels_right),
- &rendered_pixels_right);
- }
- if( (rendered_pixels_right < (F32)mTextRightEdge) && (rendered_text < text_len) )
- {
- // unselected, right side
- mGLFont->render(
- mText, mScrollHPos + rendered_text,
- rendered_pixels_right, text_bottom,
- text_color,
- LLFontGL::LEFT, LLFontGL::BOTTOM,
- 0,
- LLFontGL::NO_SHADOW,
- S32_MAX,
- mTextRightEdge - llround(rendered_pixels_right),
- &rendered_pixels_right);
- }
- }
- else
- {
- mGLFont->render(
- mText, mScrollHPos,
- rendered_pixels_right, text_bottom,
- text_color,
- LLFontGL::LEFT, LLFontGL::BOTTOM,
- 0,
- LLFontGL::NO_SHADOW,
- S32_MAX,
- mTextRightEdge - llround(rendered_pixels_right),
- &rendered_pixels_right);
- }
- #if 1 // for when we're ready for image art.
- mBorder->setVisible(FALSE); // no more programmatic art.
- #endif
- // If we're editing...
- if( hasFocus())
- {
- //mBorder->setVisible(TRUE); // ok, programmer art just this once.
- // (Flash the cursor every half second)
- if (!mReadOnly && gFocusMgr.getAppHasFocus())
- {
- F32 elapsed = mKeystrokeTimer.getElapsedTimeF32();
- if( (elapsed < CURSOR_FLASH_DELAY ) || (S32(elapsed * 2) & 1) )
- {
- S32 cursor_left = findPixelNearestPos();
- cursor_left -= lineeditor_cursor_thickness / 2;
- S32 cursor_right = cursor_left + lineeditor_cursor_thickness;
- if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode() && !hasSelection())
- {
- const LLWString space(utf8str_to_wstring(std::string(" ")));
- S32 wswidth = mGLFont->getWidth(space.c_str());
- S32 width = mGLFont->getWidth(mText.getWString().c_str(), getCursor(), 1) + 1;
- cursor_right = cursor_left + llmax(wswidth, width);
- }
- // Use same color as text for the Cursor
- gl_rect_2d(cursor_left, cursor_top,
- cursor_right, cursor_bottom, text_color);
- if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode() && !hasSelection())
- {
- LLColor4 tmp_color( 1.f - text_color.mV[0], 1.f - text_color.mV[1], 1.f - text_color.mV[2], alpha );
- mGLFont->render(mText, getCursor(), (F32)(cursor_left + lineeditor_cursor_thickness / 2), text_bottom,
- tmp_color,
- LLFontGL::LEFT, LLFontGL::BOTTOM,
- 0,
- LLFontGL::NO_SHADOW,
- 1);
- }
- // Make sure the IME is in the right place
- S32 pixels_after_scroll = findPixelNearestPos(); // RCalculcate for IME position
- LLRect screen_pos = calcScreenRect();
- LLCoordGL ime_pos( screen_pos.mLeft + pixels_after_scroll, screen_pos.mTop - lineeditor_v_pad );
- ime_pos.mX = (S32) (ime_pos.mX * LLUI::sGLScaleFactor.mV[VX]);
- ime_pos.mY = (S32) (ime_pos.mY * LLUI::sGLScaleFactor.mV[VY]);
- getWindow()->setLanguageTextInput( ime_pos );
- }
- }
- //draw label if no text is provided
- //but we should draw it in a different color
- //to give indication that it is not text you typed in
- if (0 == mText.length() && mReadOnly)
- {
- mGLFont->render(mLabel.getWString(), 0,
- mTextLeftEdge, (F32)text_bottom,
- label_color,
- LLFontGL::LEFT,
- LLFontGL::BOTTOM,
- 0,
- LLFontGL::NO_SHADOW,
- S32_MAX,
- mTextRightEdge - llround(rendered_pixels_right),
- &rendered_pixels_right, FALSE);
- }
- // Draw children (border)
- //mBorder->setVisible(TRUE);
- mBorder->setKeyboardFocusHighlight( TRUE );
- LLView::draw();
- mBorder->setKeyboardFocusHighlight( FALSE );
- //mBorder->setVisible(FALSE);
- }
- else // does not have keyboard input
- {
- // draw label if no text provided
- if (0 == mText.length())
- {
- mGLFont->render(mLabel.getWString(), 0,
- mTextLeftEdge, (F32)text_bottom,
- label_color,
- LLFontGL::LEFT,
- LLFontGL::BOTTOM,
- 0,
- LLFontGL::NO_SHADOW,
- S32_MAX,
- mTextRightEdge - llround(rendered_pixels_right),
- &rendered_pixels_right, FALSE);
- }
- // Draw children (border)
- LLView::draw();
- }
- if (mDrawAsterixes)
- {
- mText = saved_text;
- }
- }
- // Returns the local screen space X coordinate associated with the text cursor position.
- S32 LLLineEditor::findPixelNearestPos(const S32 cursor_offset) const
- {
- S32 dpos = getCursor() - mScrollHPos + cursor_offset;
- S32 result = mGLFont->getWidth(mText.getWString().c_str(), mScrollHPos, dpos) + mTextLeftEdge;
- return result;
- }
- void LLLineEditor::reportBadKeystroke()
- {
- make_ui_sound("UISndBadKeystroke");
- }
- //virtual
- void LLLineEditor::clear()
- {
- mText.clear();
- setCursor(0);
- }
- //virtual
- void LLLineEditor::onTabInto()
- {
- selectAll();
- }
- //virtual
- BOOL LLLineEditor::acceptsTextInput() const
- {
- return TRUE;
- }
- // Start or stop the editor from accepting text-editing keystrokes
- void LLLineEditor::setFocus( BOOL new_state )
- {
- BOOL old_state = hasFocus();
- if (!new_state)
- {
- getWindow()->allowLanguageTextInput(this, FALSE);
- }
- // getting focus when we didn't have it before, and we want to select all
- if (!old_state && new_state && mSelectAllonFocusReceived)
- {
- selectAll();
- // We don't want handleMouseUp() to "finish" the selection (and thereby
- // set mSelectionEnd to where the mouse is), so we finish the selection
- // here.
- mIsSelecting = FALSE;
- }
- if( new_state )
- {
- gEditMenuHandler = this;
- // Don't start the cursor flashing right away
- mKeystrokeTimer.reset();
- }
- else
- {
- // Not really needed, since loss of keyboard focus should take care of this,
- // but limited paranoia is ok.
- if( gEditMenuHandler == this )
- {
- gEditMenuHandler = NULL;
- }
- endSelection();
- }
- LLUICtrl::setFocus( new_state );
- if (new_state)
- {
- // Allow Language Text Input only when this LineEditor has
- // no prevalidate function attached. This criterion works
- // fine on 1.15.0.2, since all prevalidate func reject any
- // non-ASCII characters. I'm not sure on future versions,
- // however.
- getWindow()->allowLanguageTextInput(this, mPrevalidateFunc == NULL);
- }
- }
- //virtual
- void LLLineEditor::setRect(const LLRect& rect)
- {
- LLUICtrl::setRect(rect);
- if (mBorder)
- {
- LLRect border_rect = mBorder->getRect();
- // Scalable UI somehow made these rectangles off-by-one.
- // I don't know why. JC
- border_rect.setOriginAndSize(border_rect.mLeft, border_rect.mBottom,
- rect.getWidth()-1, rect.getHeight()-1);
- mBorder->setRect(border_rect);
- }
- }
- void LLLineEditor::setPrevalidate(LLTextValidate::validate_func_t func)
- {
- mPrevalidateFunc = func;
- updateAllowingLanguageInput();
- }
- // static
- BOOL LLLineEditor::postvalidateFloat(const std::string &str)
- {
- LLLocale locale(LLLocale::USER_LOCALE);
- BOOL success = TRUE;
- BOOL has_decimal = FALSE;
- BOOL has_digit = FALSE;
- LLWString trimmed = utf8str_to_wstring(str);
- LLWStringUtil::trim(trimmed);
- S32 len = trimmed.length();
- if( 0 < len )
- {
- S32 i = 0;
- // First character can be a negative sign
- if( '-' == trimmed[0] )
- {
- i++;
- }
- // May be a comma or period, depending on the locale
- llwchar decimal_point = (llwchar)LLResMgr::getInstance()->getDecimalPoint();
- for( ; i < len; i++ )
- {
- if( decimal_point == trimmed[i] )
- {
- if( has_decimal )
- {
- // can't have two
- success = FALSE;
- break;
- }
- else
- {
- has_decimal = TRUE;
- }
- }
- else
- if( LLStringOps::isDigit( trimmed[i] ) )
- {
- has_digit = TRUE;
- }
- else
- {
- success = FALSE;
- break;
- }
- }
- }
- // Gotta have at least one
- success = has_digit;
- return success;
- }
- void LLLineEditor::onMouseCaptureLost()
- {
- endSelection();
- }
- void LLLineEditor::setSelectAllonFocusReceived(BOOL b)
- {
- mSelectAllonFocusReceived = b;
- }
- void LLLineEditor::setKeystrokeCallback(callback_t callback, void* user_data)
- {
- mKeystrokeCallback = boost::bind(callback, _1, user_data);
- }
- BOOL LLLineEditor::setTextArg( const std::string& key, const LLStringExplicit& text )
- {
- mText.setArg(key, text);
- return TRUE;
- }
- BOOL LLLineEditor::setLabelArg( const std::string& key, const LLStringExplicit& text )
- {
- mLabel.setArg(key, text);
- return TRUE;
- }
- void LLLineEditor::updateAllowingLanguageInput()
- {
- // Allow Language Text Input only when this LineEditor has
- // no prevalidate function attached (as long as other criteria
- // common to LLTextEditor). This criterion works
- // fine on 1.15.0.2, since all prevalidate func reject any
- // non-ASCII characters. I'm not sure on future versions,
- // however...
- LLWindow* window = getWindow();
- if (!window)
- {
- // test app, no window available
- return;
- }
- if (hasFocus() && !mReadOnly && !mDrawAsterixes && mPrevalidateFunc == NULL)
- {
- window->allowLanguageTextInput(this, TRUE);
- }
- else
- {
- window->allowLanguageTextInput(this, FALSE);
- }
- }
- BOOL LLLineEditor::hasPreeditString() const
- {
- return (mPreeditPositions.size() > 1);
- }
- void LLLineEditor::resetPreedit()
- {
- if (hasSelection())
- {
- if (hasPreeditString())
- {
- llwarns << "Preedit and selection!" << llendl;
- deselect();
- }
- else
- {
- deleteSelection();
- }
- }
- if (hasPreeditString())
- {
- const S32 preedit_pos = mPreeditPositions.front();
- mText.erase(preedit_pos, mPreeditPositions.back() - preedit_pos);
- mText.insert(preedit_pos, mPreeditOverwrittenWString);
- setCursor(preedit_pos);
-
- mPreeditWString.clear();
- mPreeditOverwrittenWString.clear();
- mPreeditPositions.clear();
- // Don't reset key stroke timer nor invoke keystroke callback,
- // because a call to updatePreedit should be follow soon in
- // normal course of operation, and timer and callback will be
- // maintained there. Doing so here made an odd sound. (VWR-3410)
- }
- }
- void LLLineEditor::updatePreedit(const LLWString &preedit_string,
- const segment_lengths_t &preedit_segment_lengths, const standouts_t &preedit_standouts, S32 caret_position)
- {
- // Just in case.
- if (mReadOnly)
- {
- return;
- }
- // Note that call to updatePreedit is always preceeded by resetPreedit,
- // so we have no existing selection/preedit.
- S32 insert_preedit_at = getCursor();
- mPreeditWString = preedit_string;
- mPreeditPositions.resize(preedit_segment_lengths.size() + 1);
- S32 position = insert_preedit_at;
- for (segment_lengths_t::size_type i = 0; i < preedit_segment_lengths.size(); i++)
- {
- mPreeditPositions[i] = position;
- position += preedit_segment_lengths[i];
- }
- mPreeditPositions.back() = position;
- if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode())
- {
- mPreeditOverwrittenWString.assign( LLWString( mText, insert_preedit_at, mPreeditWString.length() ) );
- mText.erase(insert_preedit_at, mPreeditWString.length());
- }
- else
- {
- mPreeditOverwrittenWString.clear();
- }
- mText.insert(insert_preedit_at, mPreeditWString);
- mPreeditStandouts = preedit_standouts;
- setCursor(position);
- setCursor(mPreeditPositions.front() + caret_position);
- // Update of the preedit should be caused by some key strokes.
- mKeystrokeTimer.reset();
- if( mKeystrokeCallback )
- {
- mKeystrokeCallback( this );
- }
- }
- BOOL LLLineEditor::getPreeditLocation(S32 query_offset, LLCoordGL *coord, LLRect *bounds, LLRect *control) const
- {
- if (control)
- {
- LLRect control_rect_screen;
- localRectToScreen(getRect(), &control_rect_screen);
- LLUI::screenRectToGL(control_rect_screen, control);
- }
- S32 preedit_left_column, preedit_right_column;
- if (hasPreeditString())
- {
- preedit_left_column = mPreeditPositions.front();
- preedit_right_column = mPreeditPositions.back();
- }
- else
- {
- preedit_left_column = preedit_right_column = getCursor();
- }
- if (preedit_right_column < mScrollHPos)
- {
- // This should not occure...
- return FALSE;
- }
- const S32 query = (query_offset >= 0 ? preedit_left_column + query_offset : getCursor());
- if (query < mScrollHPos || query < preedit_left_column || query > preedit_right_column)
- {
- return FALSE;
- }
- if (coord)
- {
- S32 query_local = findPixelNearestPos(query - getCursor());
- S32 query_screen_x, query_screen_y;
- localPointToScreen(query_local, getRect().getHeight() / 2, &query_screen_x, &query_screen_y);
- LLUI::screenPointToGL(query_screen_x, query_screen_y, &coord->mX, &coord->mY);
- }
- if (bounds)
- {
- S32 preedit_left_local = findPixelNearestPos(llmax(preedit_left_column, mScrollHPos) - getCursor());
- S32 preedit_right_local = llmin(findPixelNearestPos(preedit_right_column - getCursor()), getRect().getWidth() - mBorderThickness);
- if (preedit_left_local > preedit_right_local)
- {
- // Is this condition possible?
- preedit_right_local = preedit_left_local;
- }
- LLRect preedit_rect_local(preedit_left_local, getRect().getHeight(), preedit_right_local, 0);
- LLRect preedit_rect_screen;
- localRectToScreen(preedit_rect_local, &preedit_rect_screen);
- LLUI::screenRectToGL(preedit_rect_screen, bounds);
- }
- return TRUE;
- }
- void LLLineEditor::getPreeditRange(S32 *position, S32 *length) const
- {
- if (hasPreeditString())
- {
- *position = mPreeditPositions.front();
- *length = mPreeditPositions.back() - mPreeditPositions.front();
- }
- else
- {
- *position = mCursorPos;
- *length = 0;
- }
- }
- void LLLineEditor::getSelectionRange(S32 *position, S32 *length) const
- {
- if (hasSelection())
- {
- *position = llmin(mSelectionStart, mSelectionEnd);
- *length = llabs(mSelectionStart - mSelectionEnd);
- }
- else
- {
- *position = mCursorPos;
- *length = 0;
- }
- }
- void LLLineEditor::markAsPreedit(S32 position, S32 length)
- {
- deselect();
- setCursor(position);
- if (hasPreeditString())
- {
- llwarns << "markAsPreedit invoked when hasPreeditString is true." << llendl;
- }
- mPreeditWString.assign( LLWString( mText.getWString(), position, length ) );
- if (length > 0)
- {
- mPreeditPositions.resize(2);
- mPreeditPositions[0] = position;
- mPreeditPositions[1] = position + length;
- mPreeditStandouts.resize(1);
- mPreeditStandouts[0] = FALSE;
- }
- else
- {
- mPreeditPositions.clear();
- mPreeditStandouts.clear();
- }
- if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode())
- {
- mPreeditOverwrittenWString = mPreeditWString;
- }
- else
- {
- mPreeditOverwrittenWString.clear();
- }
- }
- S32 LLLineEditor::getPreeditFontSize() const
- {
- return llround(mGLFont->getLineHeight() * LLUI::sGLScaleFactor.mV[VY]);
- }
- void LLLineEditor::setReplaceNewlinesWithSpaces(BOOL replace)
- {
- mReplaceNewlinesWithSpaces = replace;
- }
- LLWString LLLineEditor::getConvertedText() const
- {
- LLWString text = getWText();
- LLWStringUtil::trim(text);
- if (!mReplaceNewlinesWithSpaces)
- {
- LLWStringUtil::replaceChar(text,182,'n'); // Convert paragraph symbols back into newlines.
- }
- return text;
- }
- void LLLineEditor::showContextMenu(S32 x, S32 y)
- {
- LLContextMenu* menu = static_cast<LLContextMenu*>(mContextMenuHandle.get());
- if (menu)
- {
- gEditMenuHandler = this;
- S32 screen_x, screen_y;
- localPointToScreen(x, y, &screen_x, &screen_y);
- menu->show(screen_x, screen_y);
- }
- }
- void LLLineEditor::setContextMenu(LLContextMenu* new_context_menu)
- {
- if (new_context_menu)
- mContextMenuHandle = new_context_menu->getHandle();
- else
- mContextMenuHandle.markDead();
- }