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minetest/src/gui/intlGUIEditBox.cpp
DS-Minetest 115ef6c09c Rename guiScrollBar to GUIScrollBar
2019-07-29 21:45:39 +02:00

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// 11.11.2011 11:11 ValkaTR
//
// This is a copy of intlGUIEditBox from the irrlicht, but with a
// fix in the OnEvent function, which doesn't allowed input of
// other keyboard layouts than latin-1
//
// Characters like: ä ö ü õ ы й ю я ъ № € ° ...
//
// This fix is only needed for linux, because of a bug
// in the CIrrDeviceLinux.cpp:1014-1015 of the irrlicht
//
// Also locale in the programm should not be changed to
// a "C", "POSIX" or whatever, it should be set to "",
// or XLookupString will return nothing for the international
// characters.
//
// From the "man setlocale":
//
// On startup of the main program, the portable "C" locale
// is selected as default. A program may be made
// portable to all locales by calling:
//
// setlocale(LC_ALL, "");
//
// after program initialization....
//
// Copyright (C) 2002-2013 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#include <util/numeric.h>
#include "intlGUIEditBox.h"
#include "IGUISkin.h"
#include "IGUIEnvironment.h"
#include "IGUIFont.h"
#include "IVideoDriver.h"
//#include "irrlicht/os.cpp"
#include "porting.h"
//#include "Keycodes.h"
#include "log.h"
/*
todo:
optional scrollbars
ctrl+left/right to select word
double click/ctrl click: word select + drag to select whole words, triple click to select line
optional? dragging selected text
numerical
*/
namespace irr
{
namespace gui
{
//! constructor
intlGUIEditBox::intlGUIEditBox(const wchar_t* text, bool border,
IGUIEnvironment* environment, IGUIElement* parent, s32 id,
const core::rect<s32>& rectangle, bool writable, bool has_vscrollbar)
: IGUIEditBox(environment, parent, id, rectangle),
Border(border), FrameRect(rectangle),
m_scrollbar_width(0), m_vscrollbar(NULL), m_writable(writable)
{
#ifdef _DEBUG
setDebugName("intlintlGUIEditBox");
#endif
Text = text;
if (Environment)
Operator = Environment->getOSOperator();
if (Operator)
Operator->grab();
// this element can be tabbed to
setTabStop(true);
setTabOrder(-1);
IGUISkin *skin = 0;
if (Environment)
skin = Environment->getSkin();
if (Border && skin)
{
FrameRect.UpperLeftCorner.X += skin->getSize(EGDS_TEXT_DISTANCE_X)+1;
FrameRect.UpperLeftCorner.Y += skin->getSize(EGDS_TEXT_DISTANCE_Y)+1;
FrameRect.LowerRightCorner.X -= skin->getSize(EGDS_TEXT_DISTANCE_X)+1;
FrameRect.LowerRightCorner.Y -= skin->getSize(EGDS_TEXT_DISTANCE_Y)+1;
}
if (skin && has_vscrollbar) {
m_scrollbar_width = skin->getSize(gui::EGDS_SCROLLBAR_SIZE);
if (m_scrollbar_width > 0) {
createVScrollBar();
}
}
breakText();
calculateScrollPos();
setWritable(writable);
}
//! destructor
intlGUIEditBox::~intlGUIEditBox()
{
if (OverrideFont)
OverrideFont->drop();
if (Operator)
Operator->drop();
if (m_vscrollbar)
m_vscrollbar->drop();
}
//! Sets another skin independent font.
void intlGUIEditBox::setOverrideFont(IGUIFont* font)
{
if (OverrideFont == font)
return;
if (OverrideFont)
OverrideFont->drop();
OverrideFont = font;
if (OverrideFont)
OverrideFont->grab();
breakText();
}
IGUIFont * intlGUIEditBox::getOverrideFont() const
{
return OverrideFont;
}
//! Get the font which is used right now for drawing
IGUIFont* intlGUIEditBox::getActiveFont() const
{
if ( OverrideFont )
return OverrideFont;
IGUISkin* skin = Environment->getSkin();
if (skin)
return skin->getFont();
return 0;
}
//! Sets another color for the text.
void intlGUIEditBox::setOverrideColor(video::SColor color)
{
OverrideColor = color;
OverrideColorEnabled = true;
}
video::SColor intlGUIEditBox::getOverrideColor() const
{
return OverrideColor;
}
//! Turns the border on or off
void intlGUIEditBox::setDrawBorder(bool border)
{
Border = border;
}
//! Sets whether to draw the background
void intlGUIEditBox::setDrawBackground(bool draw)
{
}
//! Sets if the text should use the overide color or the color in the gui skin.
void intlGUIEditBox::enableOverrideColor(bool enable)
{
OverrideColorEnabled = enable;
}
bool intlGUIEditBox::isOverrideColorEnabled() const
{
return OverrideColorEnabled;
}
//! Enables or disables word wrap
void intlGUIEditBox::setWordWrap(bool enable)
{
WordWrap = enable;
breakText();
}
void intlGUIEditBox::updateAbsolutePosition()
{
core::rect<s32> oldAbsoluteRect(AbsoluteRect);
IGUIElement::updateAbsolutePosition();
if ( oldAbsoluteRect != AbsoluteRect )
{
breakText();
}
}
//! Checks if word wrap is enabled
bool intlGUIEditBox::isWordWrapEnabled() const
{
return WordWrap;
}
//! Enables or disables newlines.
void intlGUIEditBox::setMultiLine(bool enable)
{
MultiLine = enable;
}
//! Checks if multi line editing is enabled
bool intlGUIEditBox::isMultiLineEnabled() const
{
return MultiLine;
}
void intlGUIEditBox::setPasswordBox(bool passwordBox, wchar_t passwordChar)
{
PasswordBox = passwordBox;
if (PasswordBox)
{
PasswordChar = passwordChar;
setMultiLine(false);
setWordWrap(false);
BrokenText.clear();
}
}
bool intlGUIEditBox::isPasswordBox() const
{
return PasswordBox;
}
//! Sets text justification
void intlGUIEditBox::setTextAlignment(EGUI_ALIGNMENT horizontal, EGUI_ALIGNMENT vertical)
{
HAlign = horizontal;
VAlign = vertical;
}
//! called if an event happened.
bool intlGUIEditBox::OnEvent(const SEvent& event)
{
if (IsEnabled)
{
switch(event.EventType)
{
case EET_GUI_EVENT:
if (event.GUIEvent.EventType == EGET_ELEMENT_FOCUS_LOST)
{
if (event.GUIEvent.Caller == this)
{
MouseMarking = false;
setTextMarkers(0,0);
}
}
break;
case EET_KEY_INPUT_EVENT:
{
#if (defined(__linux__) || defined(__FreeBSD__)) || defined(__DragonFly__)
// ################################################################
// ValkaTR:
// This part is the difference from the original intlGUIEditBox
// It converts UTF-8 character into a UCS-2 (wchar_t)
wchar_t wc = L'_';
mbtowc( &wc, (char *) &event.KeyInput.Char, sizeof(event.KeyInput.Char) );
//printf( "char: %lc (%u) \r\n", wc, wc );
SEvent irrevent(event);
irrevent.KeyInput.Char = wc;
// ################################################################
if (processKey(irrevent))
return true;
#else
if (processKey(event))
return true;
#endif // defined(linux)
break;
}
case EET_MOUSE_INPUT_EVENT:
if (processMouse(event))
return true;
break;
default:
break;
}
}
return IGUIElement::OnEvent(event);
}
bool intlGUIEditBox::processKey(const SEvent& event)
{
if (!event.KeyInput.PressedDown)
return false;
bool textChanged = false;
s32 newMarkBegin = MarkBegin;
s32 newMarkEnd = MarkEnd;
// control shortcut handling
if (event.KeyInput.Control)
{
// german backlash '\' entered with control + '?'
if ( event.KeyInput.Char == '\\' )
{
inputChar(event.KeyInput.Char);
return true;
}
switch(event.KeyInput.Key)
{
case KEY_KEY_A:
// select all
newMarkBegin = 0;
newMarkEnd = Text.size();
break;
case KEY_KEY_C:
// copy to clipboard
if (!PasswordBox && Operator && MarkBegin != MarkEnd)
{
const s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
const s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
core::stringc s;
s = Text.subString(realmbgn, realmend - realmbgn).c_str();
Operator->copyToClipboard(s.c_str());
}
break;
case KEY_KEY_X:
// cut to the clipboard
if (!PasswordBox && Operator && MarkBegin != MarkEnd) {
const s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
const s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
// copy
core::stringc sc;
sc = Text.subString(realmbgn, realmend - realmbgn).c_str();
Operator->copyToClipboard(sc.c_str());
if (IsEnabled && m_writable) {
// delete
core::stringw s;
s = Text.subString(0, realmbgn);
s.append( Text.subString(realmend, Text.size()-realmend) );
Text = s;
CursorPos = realmbgn;
newMarkBegin = 0;
newMarkEnd = 0;
textChanged = true;
}
}
break;
case KEY_KEY_V:
if (!IsEnabled || !m_writable)
break;
// paste from the clipboard
if (Operator)
{
const s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
const s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
// add new character
const c8* p = Operator->getTextFromClipboard();
if (p)
{
if (MarkBegin == MarkEnd)
{
// insert text
core::stringw s = Text.subString(0, CursorPos);
s.append(p);
s.append( Text.subString(CursorPos, Text.size()-CursorPos) );
if (!Max || s.size()<=Max) // thx to Fish FH for fix
{
Text = s;
s = p;
CursorPos += s.size();
}
}
else
{
// replace text
core::stringw s = Text.subString(0, realmbgn);
s.append(p);
s.append( Text.subString(realmend, Text.size()-realmend) );
if (!Max || s.size()<=Max) // thx to Fish FH for fix
{
Text = s;
s = p;
CursorPos = realmbgn + s.size();
}
}
}
newMarkBegin = 0;
newMarkEnd = 0;
textChanged = true;
}
break;
case KEY_HOME:
// move/highlight to start of text
if (event.KeyInput.Shift)
{
newMarkEnd = CursorPos;
newMarkBegin = 0;
CursorPos = 0;
}
else
{
CursorPos = 0;
newMarkBegin = 0;
newMarkEnd = 0;
}
break;
case KEY_END:
// move/highlight to end of text
if (event.KeyInput.Shift)
{
newMarkBegin = CursorPos;
newMarkEnd = Text.size();
CursorPos = 0;
}
else
{
CursorPos = Text.size();
newMarkBegin = 0;
newMarkEnd = 0;
}
break;
default:
return false;
}
}
// default keyboard handling
else
switch(event.KeyInput.Key)
{
case KEY_END:
{
s32 p = Text.size();
if (WordWrap || MultiLine)
{
p = getLineFromPos(CursorPos);
p = BrokenTextPositions[p] + (s32)BrokenText[p].size();
if (p > 0 && (Text[p-1] == L'\r' || Text[p-1] == L'\n' ))
p-=1;
}
if (event.KeyInput.Shift)
{
if (MarkBegin == MarkEnd)
newMarkBegin = CursorPos;
newMarkEnd = p;
}
else
{
newMarkBegin = 0;
newMarkEnd = 0;
}
CursorPos = p;
BlinkStartTime = porting::getTimeMs();
}
break;
case KEY_HOME:
{
s32 p = 0;
if (WordWrap || MultiLine)
{
p = getLineFromPos(CursorPos);
p = BrokenTextPositions[p];
}
if (event.KeyInput.Shift)
{
if (MarkBegin == MarkEnd)
newMarkBegin = CursorPos;
newMarkEnd = p;
}
else
{
newMarkBegin = 0;
newMarkEnd = 0;
}
CursorPos = p;
BlinkStartTime = porting::getTimeMs();
}
break;
case KEY_RETURN:
if (MultiLine)
{
inputChar(L'\n');
return true;
}
else
{
sendGuiEvent( EGET_EDITBOX_ENTER );
}
break;
case KEY_LEFT:
if (event.KeyInput.Shift)
{
if (CursorPos > 0)
{
if (MarkBegin == MarkEnd)
newMarkBegin = CursorPos;
newMarkEnd = CursorPos-1;
}
}
else
{
newMarkBegin = 0;
newMarkEnd = 0;
}
if (CursorPos > 0) CursorPos--;
BlinkStartTime = porting::getTimeMs();
break;
case KEY_RIGHT:
if (event.KeyInput.Shift)
{
if (Text.size() > (u32)CursorPos)
{
if (MarkBegin == MarkEnd)
newMarkBegin = CursorPos;
newMarkEnd = CursorPos+1;
}
}
else
{
newMarkBegin = 0;
newMarkEnd = 0;
}
if (Text.size() > (u32)CursorPos) CursorPos++;
BlinkStartTime = porting::getTimeMs();
break;
case KEY_UP:
if (MultiLine || (WordWrap && BrokenText.size() > 1) )
{
s32 lineNo = getLineFromPos(CursorPos);
s32 mb = (MarkBegin == MarkEnd) ? CursorPos : (MarkBegin > MarkEnd ? MarkBegin : MarkEnd);
if (lineNo > 0)
{
s32 cp = CursorPos - BrokenTextPositions[lineNo];
if ((s32)BrokenText[lineNo-1].size() < cp)
CursorPos = BrokenTextPositions[lineNo-1] + (s32)BrokenText[lineNo-1].size()-1;
else
CursorPos = BrokenTextPositions[lineNo-1] + cp;
}
if (event.KeyInput.Shift)
{
newMarkBegin = mb;
newMarkEnd = CursorPos;
}
else
{
newMarkBegin = 0;
newMarkEnd = 0;
}
}
else
{
return false;
}
break;
case KEY_DOWN:
if (MultiLine || (WordWrap && BrokenText.size() > 1) )
{
s32 lineNo = getLineFromPos(CursorPos);
s32 mb = (MarkBegin == MarkEnd) ? CursorPos : (MarkBegin < MarkEnd ? MarkBegin : MarkEnd);
if (lineNo < (s32)BrokenText.size()-1)
{
s32 cp = CursorPos - BrokenTextPositions[lineNo];
if ((s32)BrokenText[lineNo+1].size() < cp)
CursorPos = BrokenTextPositions[lineNo+1] + BrokenText[lineNo+1].size()-1;
else
CursorPos = BrokenTextPositions[lineNo+1] + cp;
}
if (event.KeyInput.Shift)
{
newMarkBegin = mb;
newMarkEnd = CursorPos;
}
else
{
newMarkBegin = 0;
newMarkEnd = 0;
}
}
else
{
return false;
}
break;
case KEY_BACK:
if (!this->IsEnabled || !m_writable)
break;
if (!Text.empty()) {
core::stringw s;
if (MarkBegin != MarkEnd)
{
// delete marked text
const s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
const s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
s = Text.subString(0, realmbgn);
s.append( Text.subString(realmend, Text.size()-realmend) );
Text = s;
CursorPos = realmbgn;
}
else
{
// delete text behind cursor
if (CursorPos>0)
s = Text.subString(0, CursorPos-1);
else
s = L"";
s.append( Text.subString(CursorPos, Text.size()-CursorPos) );
Text = s;
--CursorPos;
}
if (CursorPos < 0)
CursorPos = 0;
BlinkStartTime = porting::getTimeMs();
newMarkBegin = 0;
newMarkEnd = 0;
textChanged = true;
}
break;
case KEY_DELETE:
if (!this->IsEnabled || !m_writable)
break;
if (!Text.empty()) {
core::stringw s;
if (MarkBegin != MarkEnd)
{
// delete marked text
const s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
const s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
s = Text.subString(0, realmbgn);
s.append( Text.subString(realmend, Text.size()-realmend) );
Text = s;
CursorPos = realmbgn;
}
else
{
// delete text before cursor
s = Text.subString(0, CursorPos);
s.append( Text.subString(CursorPos+1, Text.size()-CursorPos-1) );
Text = s;
}
if (CursorPos > (s32)Text.size())
CursorPos = (s32)Text.size();
BlinkStartTime = porting::getTimeMs();
newMarkBegin = 0;
newMarkEnd = 0;
textChanged = true;
}
break;
case KEY_ESCAPE:
case KEY_TAB:
case KEY_SHIFT:
case KEY_F1:
case KEY_F2:
case KEY_F3:
case KEY_F4:
case KEY_F5:
case KEY_F6:
case KEY_F7:
case KEY_F8:
case KEY_F9:
case KEY_F10:
case KEY_F11:
case KEY_F12:
case KEY_F13:
case KEY_F14:
case KEY_F15:
case KEY_F16:
case KEY_F17:
case KEY_F18:
case KEY_F19:
case KEY_F20:
case KEY_F21:
case KEY_F22:
case KEY_F23:
case KEY_F24:
// ignore these keys
return false;
default:
inputChar(event.KeyInput.Char);
return true;
}
// Set new text markers
setTextMarkers( newMarkBegin, newMarkEnd );
// break the text if it has changed
if (textChanged)
{
breakText();
sendGuiEvent(EGET_EDITBOX_CHANGED);
}
calculateScrollPos();
return true;
}
//! draws the element and its children
void intlGUIEditBox::draw()
{
if (!IsVisible)
return;
const bool focus = Environment->hasFocus(this);
IGUISkin* skin = Environment->getSkin();
if (!skin)
return;
FrameRect = AbsoluteRect;
// draw the border
if (Border)
{
if (m_writable) {
skin->draw3DSunkenPane(this, skin->getColor(EGDC_WINDOW),
false, true, FrameRect, &AbsoluteClippingRect);
}
FrameRect.UpperLeftCorner.X += skin->getSize(EGDS_TEXT_DISTANCE_X)+1;
FrameRect.UpperLeftCorner.Y += skin->getSize(EGDS_TEXT_DISTANCE_Y)+1;
FrameRect.LowerRightCorner.X -= skin->getSize(EGDS_TEXT_DISTANCE_X)+1;
FrameRect.LowerRightCorner.Y -= skin->getSize(EGDS_TEXT_DISTANCE_Y)+1;
}
updateVScrollBar();
core::rect<s32> localClipRect = FrameRect;
localClipRect.clipAgainst(AbsoluteClippingRect);
// draw the text
IGUIFont* font = OverrideFont;
if (!OverrideFont)
font = skin->getFont();
s32 cursorLine = 0;
s32 charcursorpos = 0;
if (font)
{
if (LastBreakFont != font)
{
breakText();
}
// calculate cursor pos
core::stringw *txtLine = &Text;
s32 startPos = 0;
core::stringw s, s2;
// get mark position
const bool ml = (!PasswordBox && (WordWrap || MultiLine));
const s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
const s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
const s32 hlineStart = ml ? getLineFromPos(realmbgn) : 0;
const s32 hlineCount = ml ? getLineFromPos(realmend) - hlineStart + 1 : 1;
const s32 lineCount = ml ? BrokenText.size() : 1;
// Save the override color information.
// Then, alter it if the edit box is disabled.
const bool prevOver = OverrideColorEnabled;
const video::SColor prevColor = OverrideColor;
if (!Text.empty()) {
if (!IsEnabled && !OverrideColorEnabled)
{
OverrideColorEnabled = true;
OverrideColor = skin->getColor(EGDC_GRAY_TEXT);
}
for (s32 i=0; i < lineCount; ++i)
{
setTextRect(i);
// clipping test - don't draw anything outside the visible area
core::rect<s32> c = localClipRect;
c.clipAgainst(CurrentTextRect);
if (!c.isValid())
continue;
// get current line
if (PasswordBox)
{
if (BrokenText.size() != 1)
{
BrokenText.clear();
BrokenText.push_back(core::stringw());
}
if (BrokenText[0].size() != Text.size())
{
BrokenText[0] = Text;
for (u32 q = 0; q < Text.size(); ++q)
{
BrokenText[0] [q] = PasswordChar;
}
}
txtLine = &BrokenText[0];
startPos = 0;
}
else
{
txtLine = ml ? &BrokenText[i] : &Text;
startPos = ml ? BrokenTextPositions[i] : 0;
}
// draw normal text
font->draw(txtLine->c_str(), CurrentTextRect,
OverrideColorEnabled ? OverrideColor : skin->getColor(EGDC_BUTTON_TEXT),
false, true, &localClipRect);
// draw mark and marked text
if (focus && MarkBegin != MarkEnd && i >= hlineStart && i < hlineStart + hlineCount)
{
s32 mbegin = 0, mend = 0;
s32 lineStartPos = 0, lineEndPos = txtLine->size();
if (i == hlineStart)
{
// highlight start is on this line
s = txtLine->subString(0, realmbgn - startPos);
mbegin = font->getDimension(s.c_str()).Width;
// deal with kerning
mbegin += font->getKerningWidth(
&((*txtLine)[realmbgn - startPos]),
realmbgn - startPos > 0 ? &((*txtLine)[realmbgn - startPos - 1]) : 0);
lineStartPos = realmbgn - startPos;
}
if (i == hlineStart + hlineCount - 1)
{
// highlight end is on this line
s2 = txtLine->subString(0, realmend - startPos);
mend = font->getDimension(s2.c_str()).Width;
lineEndPos = (s32)s2.size();
}
else
mend = font->getDimension(txtLine->c_str()).Width;
CurrentTextRect.UpperLeftCorner.X += mbegin;
CurrentTextRect.LowerRightCorner.X = CurrentTextRect.UpperLeftCorner.X + mend - mbegin;
// draw mark
skin->draw2DRectangle(this, skin->getColor(EGDC_HIGH_LIGHT), CurrentTextRect, &localClipRect);
// draw marked text
s = txtLine->subString(lineStartPos, lineEndPos - lineStartPos);
if (!s.empty())
font->draw(s.c_str(), CurrentTextRect,
OverrideColorEnabled ? OverrideColor : skin->getColor(EGDC_HIGH_LIGHT_TEXT),
false, true, &localClipRect);
}
}
// Return the override color information to its previous settings.
OverrideColorEnabled = prevOver;
OverrideColor = prevColor;
}
// draw cursor
if (WordWrap || MultiLine)
{
cursorLine = getLineFromPos(CursorPos);
txtLine = &BrokenText[cursorLine];
startPos = BrokenTextPositions[cursorLine];
}
s = txtLine->subString(0,CursorPos-startPos);
charcursorpos = font->getDimension(s.c_str()).Width +
font->getKerningWidth(L"_", CursorPos-startPos > 0 ? &((*txtLine)[CursorPos-startPos-1]) : 0);
if (m_writable) {
if (focus && (porting::getTimeMs() - BlinkStartTime) % 700 < 350) {
setTextRect(cursorLine);
CurrentTextRect.UpperLeftCorner.X += charcursorpos;
font->draw(L"_", CurrentTextRect,
OverrideColorEnabled ? OverrideColor : skin->getColor(EGDC_BUTTON_TEXT),
false, true, &localClipRect);
}
}
}
// draw children
IGUIElement::draw();
}
//! Sets the new caption of this element.
void intlGUIEditBox::setText(const wchar_t* text)
{
Text = text;
if (u32(CursorPos) > Text.size())
CursorPos = Text.size();
HScrollPos = 0;
breakText();
}
//! Enables or disables automatic scrolling with cursor position
//! \param enable: If set to true, the text will move around with the cursor position
void intlGUIEditBox::setAutoScroll(bool enable)
{
AutoScroll = enable;
}
//! Checks to see if automatic scrolling is enabled
//! \return true if automatic scrolling is enabled, false if not
bool intlGUIEditBox::isAutoScrollEnabled() const
{
return AutoScroll;
}
//! Gets the area of the text in the edit box
//! \return Returns the size in pixels of the text
core::dimension2du intlGUIEditBox::getTextDimension()
{
core::rect<s32> ret;
setTextRect(0);
ret = CurrentTextRect;
for (u32 i=1; i < BrokenText.size(); ++i)
{
setTextRect(i);
ret.addInternalPoint(CurrentTextRect.UpperLeftCorner);
ret.addInternalPoint(CurrentTextRect.LowerRightCorner);
}
return core::dimension2du(ret.getSize());
}
//! Sets the maximum amount of characters which may be entered in the box.
//! \param max: Maximum amount of characters. If 0, the character amount is
//! infinity.
void intlGUIEditBox::setMax(u32 max)
{
Max = max;
if (Text.size() > Max && Max != 0)
Text = Text.subString(0, Max);
}
//! Returns maximum amount of characters, previously set by setMax();
u32 intlGUIEditBox::getMax() const
{
return Max;
}
bool intlGUIEditBox::processMouse(const SEvent& event)
{
switch(event.MouseInput.Event)
{
case irr::EMIE_LMOUSE_LEFT_UP:
if (Environment->hasFocus(this))
{
CursorPos = getCursorPos(event.MouseInput.X, event.MouseInput.Y);
if (MouseMarking)
{
setTextMarkers( MarkBegin, CursorPos );
}
MouseMarking = false;
calculateScrollPos();
return true;
}
break;
case irr::EMIE_MOUSE_MOVED:
{
if (MouseMarking)
{
CursorPos = getCursorPos(event.MouseInput.X, event.MouseInput.Y);
setTextMarkers( MarkBegin, CursorPos );
calculateScrollPos();
return true;
}
}
break;
case EMIE_LMOUSE_PRESSED_DOWN:
if (!Environment->hasFocus(this))
{
BlinkStartTime = porting::getTimeMs();
MouseMarking = true;
CursorPos = getCursorPos(event.MouseInput.X, event.MouseInput.Y);
setTextMarkers(CursorPos, CursorPos );
calculateScrollPos();
return true;
}
else
{
if (!AbsoluteClippingRect.isPointInside(
core::position2d<s32>(event.MouseInput.X, event.MouseInput.Y))) {
return false;
}
// move cursor
CursorPos = getCursorPos(event.MouseInput.X, event.MouseInput.Y);
s32 newMarkBegin = MarkBegin;
if (!MouseMarking)
newMarkBegin = CursorPos;
MouseMarking = true;
setTextMarkers( newMarkBegin, CursorPos);
calculateScrollPos();
return true;
}
break;
case EMIE_MOUSE_WHEEL:
if (m_vscrollbar && m_vscrollbar->isVisible()) {
s32 pos = m_vscrollbar->getPos();
s32 step = m_vscrollbar->getSmallStep();
m_vscrollbar->setPos(pos - event.MouseInput.Wheel * step);
}
break;
default:
break;
}
return false;
}
s32 intlGUIEditBox::getCursorPos(s32 x, s32 y)
{
IGUIFont* font = OverrideFont;
IGUISkin* skin = Environment->getSkin();
if (!OverrideFont)
font = skin->getFont();
const u32 lineCount = (WordWrap || MultiLine) ? BrokenText.size() : 1;
core::stringw *txtLine = NULL;
s32 startPos = 0;
u32 curr_line_idx = 0;
x += 3;
for (; curr_line_idx < lineCount; ++curr_line_idx) {
setTextRect(curr_line_idx);
if (curr_line_idx == 0 && y < CurrentTextRect.UpperLeftCorner.Y)
y = CurrentTextRect.UpperLeftCorner.Y;
if (curr_line_idx == lineCount - 1 && y > CurrentTextRect.LowerRightCorner.Y)
y = CurrentTextRect.LowerRightCorner.Y;
// is it inside this region?
if (y >= CurrentTextRect.UpperLeftCorner.Y && y <= CurrentTextRect.LowerRightCorner.Y) {
// we've found the clicked line
txtLine = (WordWrap || MultiLine) ? &BrokenText[curr_line_idx] : &Text;
startPos = (WordWrap || MultiLine) ? BrokenTextPositions[curr_line_idx] : 0;
break;
}
}
if (x < CurrentTextRect.UpperLeftCorner.X)
x = CurrentTextRect.UpperLeftCorner.X;
else if (x > CurrentTextRect.LowerRightCorner.X)
x = CurrentTextRect.LowerRightCorner.X;
s32 idx = font->getCharacterFromPos(txtLine->c_str(), x - CurrentTextRect.UpperLeftCorner.X);
// Special handling for last line, if we are on limits, add 1 extra shift because idx
// will be the last char, not null char of the wstring
if (curr_line_idx == lineCount - 1 && x == CurrentTextRect.LowerRightCorner.X)
idx++;
return rangelim(idx + startPos, 0, S32_MAX);
}
//! Breaks the single text line.
void intlGUIEditBox::breakText()
{
IGUISkin* skin = Environment->getSkin();
if ((!WordWrap && !MultiLine) || !skin)
return;
BrokenText.clear(); // need to reallocate :/
BrokenTextPositions.set_used(0);
IGUIFont* font = OverrideFont;
if (!OverrideFont)
font = skin->getFont();
if (!font)
return;
LastBreakFont = font;
core::stringw line;
core::stringw word;
core::stringw whitespace;
s32 lastLineStart = 0;
s32 size = Text.size();
s32 length = 0;
s32 elWidth = RelativeRect.getWidth() - 6;
wchar_t c;
for (s32 i=0; i<size; ++i)
{
c = Text[i];
bool lineBreak = false;
if (c == L'\r') // Mac or Windows breaks
{
lineBreak = true;
c = ' ';
if (Text[i+1] == L'\n') // Windows breaks
{
Text.erase(i+1);
--size;
}
}
else if (c == L'\n') // Unix breaks
{
lineBreak = true;
c = ' ';
}
// don't break if we're not a multi-line edit box
if (!MultiLine)
lineBreak = false;
if (c == L' ' || c == 0 || i == (size-1))
{
if (!word.empty()) {
// here comes the next whitespace, look if
// we can break the last word to the next line.
s32 whitelgth = font->getDimension(whitespace.c_str()).Width;
s32 worldlgth = font->getDimension(word.c_str()).Width;
if (WordWrap && length + worldlgth + whitelgth > elWidth)
{
// break to next line
length = worldlgth;
BrokenText.push_back(line);
BrokenTextPositions.push_back(lastLineStart);
lastLineStart = i - (s32)word.size();
line = word;
}
else
{
// add word to line
line += whitespace;
line += word;
length += whitelgth + worldlgth;
}
word = L"";
whitespace = L"";
}
whitespace += c;
// compute line break
if (lineBreak)
{
line += whitespace;
line += word;
BrokenText.push_back(line);
BrokenTextPositions.push_back(lastLineStart);
lastLineStart = i+1;
line = L"";
word = L"";
whitespace = L"";
length = 0;
}
}
else
{
// yippee this is a word..
word += c;
}
}
line += whitespace;
line += word;
BrokenText.push_back(line);
BrokenTextPositions.push_back(lastLineStart);
}
void intlGUIEditBox::setTextRect(s32 line)
{
core::dimension2du d;
IGUISkin* skin = Environment->getSkin();
if (!skin)
return;
IGUIFont* font = OverrideFont ? OverrideFont : skin->getFont();
if (!font)
return;
// get text dimension
const u32 lineCount = (WordWrap || MultiLine) ? BrokenText.size() : 1;
if (WordWrap || MultiLine)
{
d = font->getDimension(BrokenText[line].c_str());
}
else
{
d = font->getDimension(Text.c_str());
d.Height = AbsoluteRect.getHeight();
}
d.Height += font->getKerningHeight();
// justification
switch (HAlign)
{
case EGUIA_CENTER:
// align to h centre
CurrentTextRect.UpperLeftCorner.X = (FrameRect.getWidth()/2) - (d.Width/2);
CurrentTextRect.LowerRightCorner.X = (FrameRect.getWidth()/2) + (d.Width/2);
break;
case EGUIA_LOWERRIGHT:
// align to right edge
CurrentTextRect.UpperLeftCorner.X = FrameRect.getWidth() - d.Width;
CurrentTextRect.LowerRightCorner.X = FrameRect.getWidth();
break;
default:
// align to left edge
CurrentTextRect.UpperLeftCorner.X = 0;
CurrentTextRect.LowerRightCorner.X = d.Width;
}
switch (VAlign)
{
case EGUIA_CENTER:
// align to v centre
CurrentTextRect.UpperLeftCorner.Y =
(FrameRect.getHeight()/2) - (lineCount*d.Height)/2 + d.Height*line;
break;
case EGUIA_LOWERRIGHT:
// align to bottom edge
CurrentTextRect.UpperLeftCorner.Y =
FrameRect.getHeight() - lineCount*d.Height + d.Height*line;
break;
default:
// align to top edge
CurrentTextRect.UpperLeftCorner.Y = d.Height*line;
break;
}
CurrentTextRect.UpperLeftCorner.X -= HScrollPos;
CurrentTextRect.LowerRightCorner.X -= HScrollPos;
CurrentTextRect.UpperLeftCorner.Y -= VScrollPos;
CurrentTextRect.LowerRightCorner.Y = CurrentTextRect.UpperLeftCorner.Y + d.Height;
CurrentTextRect += FrameRect.UpperLeftCorner;
}
s32 intlGUIEditBox::getLineFromPos(s32 pos)
{
if (!WordWrap && !MultiLine)
return 0;
s32 i=0;
while (i < (s32)BrokenTextPositions.size())
{
if (BrokenTextPositions[i] > pos)
return i-1;
++i;
}
return (s32)BrokenTextPositions.size() - 1;
}
void intlGUIEditBox::inputChar(wchar_t c)
{
if (!IsEnabled || !m_writable)
return;
if (c != 0)
{
if (Text.size() < Max || Max == 0)
{
core::stringw s;
if (MarkBegin != MarkEnd)
{
// replace marked text
const s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
const s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
s = Text.subString(0, realmbgn);
s.append(c);
s.append( Text.subString(realmend, Text.size()-realmend) );
Text = s;
CursorPos = realmbgn+1;
}
else
{
// add new character
s = Text.subString(0, CursorPos);
s.append(c);
s.append( Text.subString(CursorPos, Text.size()-CursorPos) );
Text = s;
++CursorPos;
}
BlinkStartTime = porting::getTimeMs();
setTextMarkers(0, 0);
}
}
breakText();
sendGuiEvent(EGET_EDITBOX_CHANGED);
calculateScrollPos();
}
void intlGUIEditBox::calculateScrollPos()
{
if (!AutoScroll)
return;
// calculate horizontal scroll position
s32 cursLine = getLineFromPos(CursorPos);
setTextRect(cursLine);
// don't do horizontal scrolling when wordwrap is enabled.
if (!WordWrap)
{
// get cursor position
IGUISkin* skin = Environment->getSkin();
if (!skin)
return;
IGUIFont* font = OverrideFont ? OverrideFont : skin->getFont();
if (!font)
return;
core::stringw *txtLine = MultiLine ? &BrokenText[cursLine] : &Text;
s32 cPos = MultiLine ? CursorPos - BrokenTextPositions[cursLine] : CursorPos;
s32 cStart = CurrentTextRect.UpperLeftCorner.X + HScrollPos +
font->getDimension(txtLine->subString(0, cPos).c_str()).Width;
s32 cEnd = cStart + font->getDimension(L"_ ").Width;
if (FrameRect.LowerRightCorner.X < cEnd)
HScrollPos = cEnd - FrameRect.LowerRightCorner.X;
else if (FrameRect.UpperLeftCorner.X > cStart)
HScrollPos = cStart - FrameRect.UpperLeftCorner.X;
else
HScrollPos = 0;
// todo: adjust scrollbar
}
if (!WordWrap && !MultiLine)
return;
// vertical scroll position
if (FrameRect.LowerRightCorner.Y < CurrentTextRect.LowerRightCorner.Y)
VScrollPos += CurrentTextRect.LowerRightCorner.Y - FrameRect.LowerRightCorner.Y; // scrolling downwards
else if (FrameRect.UpperLeftCorner.Y > CurrentTextRect.UpperLeftCorner.Y)
VScrollPos += CurrentTextRect.UpperLeftCorner.Y - FrameRect.UpperLeftCorner.Y; // scrolling upwards
// todo: adjust scrollbar
if (m_vscrollbar)
m_vscrollbar->setPos(VScrollPos);
}
//! set text markers
void intlGUIEditBox::setTextMarkers(s32 begin, s32 end)
{
if ( begin != MarkBegin || end != MarkEnd )
{
MarkBegin = begin;
MarkEnd = end;
sendGuiEvent(EGET_EDITBOX_MARKING_CHANGED);
}
}
//! send some gui event to parent
void intlGUIEditBox::sendGuiEvent(EGUI_EVENT_TYPE type)
{
if ( Parent )
{
SEvent e;
e.EventType = EET_GUI_EVENT;
e.GUIEvent.Caller = this;
e.GUIEvent.Element = 0;
e.GUIEvent.EventType = type;
Parent->OnEvent(e);
}
}
//! Create a vertical scrollbar
void intlGUIEditBox::createVScrollBar()
{
s32 fontHeight = 1;
if (OverrideFont) {
fontHeight = OverrideFont->getDimension(L"").Height;
} else {
if (IGUISkin* skin = Environment->getSkin()) {
if (IGUIFont* font = skin->getFont()) {
fontHeight = font->getDimension(L"").Height;
}
}
}
RelativeRect.LowerRightCorner.X -= m_scrollbar_width + 4;
irr::core::rect<s32> scrollbarrect = FrameRect;
scrollbarrect.UpperLeftCorner.X += FrameRect.getWidth() - m_scrollbar_width;
m_vscrollbar = new GUIScrollBar(Environment, getParent(), -1,
scrollbarrect, false, true);
m_vscrollbar->setVisible(false);
m_vscrollbar->setSmallStep(3 * fontHeight);
m_vscrollbar->setLargeStep(10 * fontHeight);
}
//! Update the vertical scrollbar (visibilty & scroll position)
void intlGUIEditBox::updateVScrollBar()
{
if (!m_vscrollbar)
return;
// OnScrollBarChanged(...)
if (m_vscrollbar->getPos() != VScrollPos) {
s32 deltaScrollY = m_vscrollbar->getPos() - VScrollPos;
CurrentTextRect.UpperLeftCorner.Y -= deltaScrollY;
CurrentTextRect.LowerRightCorner.Y -= deltaScrollY;
s32 scrollymax = getTextDimension().Height - FrameRect.getHeight();
if (scrollymax != m_vscrollbar->getMax()) {
// manage a newline or a deleted line
m_vscrollbar->setMax(scrollymax);
m_vscrollbar->setPageSize(s32(getTextDimension().Height));
calculateScrollPos();
} else {
// manage a newline or a deleted line
VScrollPos = m_vscrollbar->getPos();
}
}
// check if a vertical scrollbar is needed ?
if (getTextDimension().Height > (u32) FrameRect.getHeight()) {
s32 scrollymax = getTextDimension().Height - FrameRect.getHeight();
if (scrollymax != m_vscrollbar->getMax()) {
m_vscrollbar->setMax(scrollymax);
m_vscrollbar->setPageSize(s32(getTextDimension().Height));
}
if (!m_vscrollbar->isVisible() && MultiLine) {
AbsoluteRect.LowerRightCorner.X -= m_scrollbar_width;
m_vscrollbar->setVisible(true);
}
} else {
if (m_vscrollbar->isVisible()) {
AbsoluteRect.LowerRightCorner.X += m_scrollbar_width;
VScrollPos = 0;
m_vscrollbar->setPos(0);
m_vscrollbar->setMax(1);
m_vscrollbar->setPageSize(s32(getTextDimension().Height));
m_vscrollbar->setVisible(false);
}
}
}
void intlGUIEditBox::setWritable(bool can_write_text)
{
m_writable = can_write_text;
}
//! Writes attributes of the element.
void intlGUIEditBox::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options=0) const
{
// IGUIEditBox::serializeAttributes(out,options);
out->addBool ("OverrideColorEnabled",OverrideColorEnabled );
out->addColor ("OverrideColor", OverrideColor);
// out->addFont("OverrideFont",OverrideFont);
out->addInt ("MaxChars", Max);
out->addBool ("WordWrap", WordWrap);
out->addBool ("MultiLine", MultiLine);
out->addBool ("AutoScroll", AutoScroll);
out->addBool ("PasswordBox", PasswordBox);
core::stringw ch = L" ";
ch[0] = PasswordChar;
out->addString("PasswordChar", ch.c_str());
out->addEnum ("HTextAlign", HAlign, GUIAlignmentNames);
out->addEnum ("VTextAlign", VAlign, GUIAlignmentNames);
out->addBool ("Writable", m_writable);
IGUIEditBox::serializeAttributes(out,options);
}
//! Reads attributes of the element
void intlGUIEditBox::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options=0)
{
IGUIEditBox::deserializeAttributes(in,options);
setOverrideColor(in->getAttributeAsColor("OverrideColor"));
enableOverrideColor(in->getAttributeAsBool("OverrideColorEnabled"));
setMax(in->getAttributeAsInt("MaxChars"));
setWordWrap(in->getAttributeAsBool("WordWrap"));
setMultiLine(in->getAttributeAsBool("MultiLine"));
setAutoScroll(in->getAttributeAsBool("AutoScroll"));
core::stringw ch = in->getAttributeAsStringW("PasswordChar");
if (ch.empty())
setPasswordBox(in->getAttributeAsBool("PasswordBox"));
else
setPasswordBox(in->getAttributeAsBool("PasswordBox"), ch[0]);
setTextAlignment( (EGUI_ALIGNMENT) in->getAttributeAsEnumeration("HTextAlign", GUIAlignmentNames),
(EGUI_ALIGNMENT) in->getAttributeAsEnumeration("VTextAlign", GUIAlignmentNames));
setWritable(in->getAttributeAsBool("Writable"));
// setOverrideFont(in->getAttributeAsFont("OverrideFont"));
}
} // end namespace gui
} // end namespace irr
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