627 lines
16 KiB
C++
627 lines
16 KiB
C++
// 11.11.2011 11:11 ValkaTR
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//
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// This is a copy of intlGUIEditBox from the irrlicht, but with a
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// fix in the OnEvent function, which doesn't allowed input of
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// other keyboard layouts than latin-1
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//
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// Characters like: ä ö ü õ ы й ю я ъ № € ° ...
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//
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// This fix is only needed for linux, because of a bug
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// in the CIrrDeviceLinux.cpp:1014-1015 of the irrlicht
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//
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// Also locale in the programm should not be changed to
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// a "C", "POSIX" or whatever, it should be set to "",
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// or XLookupString will return nothing for the international
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// characters.
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//
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// From the "man setlocale":
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//
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// On startup of the main program, the portable "C" locale
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// is selected as default. A program may be made
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// portable to all locales by calling:
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//
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// setlocale(LC_ALL, "");
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//
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// after program initialization....
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//
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// Copyright (C) 2002-2013 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#include <util/numeric.h>
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#include "intlGUIEditBox.h"
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#include "IGUISkin.h"
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#include "IGUIEnvironment.h"
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#include "IGUIFont.h"
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#include "IVideoDriver.h"
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//#include "irrlicht/os.cpp"
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#include "porting.h"
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//#include "Keycodes.h"
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#include "log.h"
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/*
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todo:
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optional scrollbars
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ctrl+left/right to select word
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double click/ctrl click: word select + drag to select whole words, triple click to select line
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optional? dragging selected text
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numerical
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*/
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namespace irr
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{
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namespace gui
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{
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//! constructor
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intlGUIEditBox::intlGUIEditBox(const wchar_t* text, bool border,
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IGUIEnvironment* environment, IGUIElement* parent, s32 id,
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const core::rect<s32>& rectangle, bool writable, bool has_vscrollbar)
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: GUIEditBox(environment, parent, id, rectangle, border, writable)
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{
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#ifdef _DEBUG
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setDebugName("intlintlGUIEditBox");
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#endif
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Text = text;
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if (Environment)
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m_operator = Environment->getOSOperator();
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if (m_operator)
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m_operator->grab();
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// this element can be tabbed to
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setTabStop(true);
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setTabOrder(-1);
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IGUISkin *skin = 0;
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if (Environment)
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skin = Environment->getSkin();
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if (m_border && skin)
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{
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m_frame_rect.UpperLeftCorner.X += skin->getSize(EGDS_TEXT_DISTANCE_X)+1;
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m_frame_rect.UpperLeftCorner.Y += skin->getSize(EGDS_TEXT_DISTANCE_Y)+1;
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m_frame_rect.LowerRightCorner.X -= skin->getSize(EGDS_TEXT_DISTANCE_X)+1;
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m_frame_rect.LowerRightCorner.Y -= skin->getSize(EGDS_TEXT_DISTANCE_Y)+1;
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}
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if (skin && has_vscrollbar) {
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m_scrollbar_width = skin->getSize(gui::EGDS_SCROLLBAR_SIZE);
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if (m_scrollbar_width > 0) {
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createVScrollBar();
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}
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}
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breakText();
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calculateScrollPos();
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setWritable(writable);
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}
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//! Sets whether to draw the background
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void intlGUIEditBox::setDrawBackground(bool draw)
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{
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}
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void intlGUIEditBox::updateAbsolutePosition()
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{
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core::rect<s32> oldAbsoluteRect(AbsoluteRect);
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IGUIElement::updateAbsolutePosition();
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if ( oldAbsoluteRect != AbsoluteRect )
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{
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breakText();
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}
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}
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//! draws the element and its children
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void intlGUIEditBox::draw()
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{
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if (!IsVisible)
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return;
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const bool focus = Environment->hasFocus(this);
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IGUISkin* skin = Environment->getSkin();
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if (!skin)
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return;
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m_frame_rect = AbsoluteRect;
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// draw the border
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if (m_border)
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{
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if (m_writable) {
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skin->draw3DSunkenPane(this, skin->getColor(EGDC_WINDOW),
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false, true, m_frame_rect, &AbsoluteClippingRect);
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}
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m_frame_rect.UpperLeftCorner.X += skin->getSize(EGDS_TEXT_DISTANCE_X)+1;
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m_frame_rect.UpperLeftCorner.Y += skin->getSize(EGDS_TEXT_DISTANCE_Y)+1;
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m_frame_rect.LowerRightCorner.X -= skin->getSize(EGDS_TEXT_DISTANCE_X)+1;
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m_frame_rect.LowerRightCorner.Y -= skin->getSize(EGDS_TEXT_DISTANCE_Y)+1;
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}
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updateVScrollBar();
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core::rect<s32> localClipRect = m_frame_rect;
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localClipRect.clipAgainst(AbsoluteClippingRect);
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// draw the text
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IGUIFont* font = m_override_font;
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if (!m_override_font)
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font = skin->getFont();
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s32 cursorLine = 0;
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s32 charcursorpos = 0;
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if (font)
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{
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if (m_last_break_font != font)
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{
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breakText();
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}
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// calculate cursor pos
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core::stringw *txtLine = &Text;
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s32 startPos = 0;
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core::stringw s, s2;
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// get mark position
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const bool ml = (!m_passwordbox && (m_word_wrap || m_multiline));
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const s32 realmbgn = m_mark_begin < m_mark_end ? m_mark_begin : m_mark_end;
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const s32 realmend = m_mark_begin < m_mark_end ? m_mark_end : m_mark_begin;
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const s32 hlineStart = ml ? getLineFromPos(realmbgn) : 0;
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const s32 hlineCount = ml ? getLineFromPos(realmend) - hlineStart + 1 : 1;
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const s32 lineCount = ml ? m_broken_text.size() : 1;
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// Save the override color information.
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// Then, alter it if the edit box is disabled.
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const bool prevOver = m_override_color_enabled;
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const video::SColor prevColor = m_override_color;
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if (!Text.empty()) {
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if (!IsEnabled && !m_override_color_enabled)
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{
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m_override_color_enabled = true;
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m_override_color = skin->getColor(EGDC_GRAY_TEXT);
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}
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for (s32 i=0; i < lineCount; ++i)
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{
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setTextRect(i);
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// clipping test - don't draw anything outside the visible area
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core::rect<s32> c = localClipRect;
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c.clipAgainst(m_current_text_rect);
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if (!c.isValid())
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continue;
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// get current line
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if (m_passwordbox)
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{
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if (m_broken_text.size() != 1)
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{
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m_broken_text.clear();
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m_broken_text.emplace_back();
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}
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if (m_broken_text[0].size() != Text.size())
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{
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m_broken_text[0] = Text;
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for (u32 q = 0; q < Text.size(); ++q)
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{
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m_broken_text[0] [q] = m_passwordchar;
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}
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}
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txtLine = &m_broken_text[0];
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startPos = 0;
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}
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else
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{
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txtLine = ml ? &m_broken_text[i] : &Text;
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startPos = ml ? m_broken_text_positions[i] : 0;
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}
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// draw normal text
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font->draw(txtLine->c_str(), m_current_text_rect,
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m_override_color_enabled ? m_override_color : skin->getColor(EGDC_BUTTON_TEXT),
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false, true, &localClipRect);
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// draw mark and marked text
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if (focus && m_mark_begin != m_mark_end && i >= hlineStart && i < hlineStart + hlineCount)
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{
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s32 mbegin = 0, mend = 0;
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s32 lineStartPos = 0, lineEndPos = txtLine->size();
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if (i == hlineStart)
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{
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// highlight start is on this line
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s = txtLine->subString(0, realmbgn - startPos);
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mbegin = font->getDimension(s.c_str()).Width;
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// deal with kerning
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mbegin += font->getKerningWidth(
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&((*txtLine)[realmbgn - startPos]),
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realmbgn - startPos > 0 ? &((*txtLine)[realmbgn - startPos - 1]) : 0);
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lineStartPos = realmbgn - startPos;
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}
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if (i == hlineStart + hlineCount - 1)
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{
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// highlight end is on this line
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s2 = txtLine->subString(0, realmend - startPos);
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mend = font->getDimension(s2.c_str()).Width;
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lineEndPos = (s32)s2.size();
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}
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else
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mend = font->getDimension(txtLine->c_str()).Width;
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m_current_text_rect.UpperLeftCorner.X += mbegin;
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m_current_text_rect.LowerRightCorner.X = m_current_text_rect.UpperLeftCorner.X + mend - mbegin;
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// draw mark
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skin->draw2DRectangle(this, skin->getColor(EGDC_HIGH_LIGHT), m_current_text_rect, &localClipRect);
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// draw marked text
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s = txtLine->subString(lineStartPos, lineEndPos - lineStartPos);
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if (!s.empty())
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font->draw(s.c_str(), m_current_text_rect,
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m_override_color_enabled ? m_override_color : skin->getColor(EGDC_HIGH_LIGHT_TEXT),
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false, true, &localClipRect);
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}
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}
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// Return the override color information to its previous settings.
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m_override_color_enabled = prevOver;
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m_override_color = prevColor;
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}
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// draw cursor
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if (m_word_wrap || m_multiline)
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{
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cursorLine = getLineFromPos(m_cursor_pos);
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txtLine = &m_broken_text[cursorLine];
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startPos = m_broken_text_positions[cursorLine];
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}
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s = txtLine->subString(0,m_cursor_pos-startPos);
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charcursorpos = font->getDimension(s.c_str()).Width +
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font->getKerningWidth(L"_", m_cursor_pos-startPos > 0 ? &((*txtLine)[m_cursor_pos-startPos-1]) : 0);
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if (m_writable) {
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if (focus && (porting::getTimeMs() - m_blink_start_time) % 700 < 350) {
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setTextRect(cursorLine);
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m_current_text_rect.UpperLeftCorner.X += charcursorpos;
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font->draw(L"_", m_current_text_rect,
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m_override_color_enabled ? m_override_color : skin->getColor(EGDC_BUTTON_TEXT),
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false, true, &localClipRect);
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}
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}
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}
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// draw children
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IGUIElement::draw();
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}
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s32 intlGUIEditBox::getCursorPos(s32 x, s32 y)
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{
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IGUIFont* font = getActiveFont();
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const u32 lineCount = (m_word_wrap || m_multiline) ? m_broken_text.size() : 1;
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core::stringw *txtLine = NULL;
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s32 startPos = 0;
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u32 curr_line_idx = 0;
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x += 3;
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for (; curr_line_idx < lineCount; ++curr_line_idx) {
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setTextRect(curr_line_idx);
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if (curr_line_idx == 0 && y < m_current_text_rect.UpperLeftCorner.Y)
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y = m_current_text_rect.UpperLeftCorner.Y;
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if (curr_line_idx == lineCount - 1 && y > m_current_text_rect.LowerRightCorner.Y)
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y = m_current_text_rect.LowerRightCorner.Y;
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// is it inside this region?
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if (y >= m_current_text_rect.UpperLeftCorner.Y && y <= m_current_text_rect.LowerRightCorner.Y) {
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// we've found the clicked line
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txtLine = (m_word_wrap || m_multiline) ? &m_broken_text[curr_line_idx] : &Text;
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startPos = (m_word_wrap || m_multiline) ? m_broken_text_positions[curr_line_idx] : 0;
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break;
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}
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}
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if (x < m_current_text_rect.UpperLeftCorner.X)
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x = m_current_text_rect.UpperLeftCorner.X;
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else if (x > m_current_text_rect.LowerRightCorner.X)
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x = m_current_text_rect.LowerRightCorner.X;
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s32 idx = font->getCharacterFromPos(txtLine->c_str(), x - m_current_text_rect.UpperLeftCorner.X);
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// Special handling for last line, if we are on limits, add 1 extra shift because idx
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// will be the last char, not null char of the wstring
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if (curr_line_idx == lineCount - 1 && x == m_current_text_rect.LowerRightCorner.X)
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idx++;
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return rangelim(idx + startPos, 0, S32_MAX);
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}
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//! Breaks the single text line.
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void intlGUIEditBox::breakText()
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{
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IGUISkin* skin = Environment->getSkin();
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if ((!m_word_wrap && !m_multiline) || !skin)
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return;
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m_broken_text.clear(); // need to reallocate :/
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m_broken_text_positions.clear();
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IGUIFont* font = m_override_font;
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if (!m_override_font)
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font = skin->getFont();
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if (!font)
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return;
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m_last_break_font = font;
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core::stringw line;
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core::stringw word;
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core::stringw whitespace;
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s32 lastLineStart = 0;
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s32 size = Text.size();
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s32 length = 0;
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s32 elWidth = RelativeRect.getWidth() - m_scrollbar_width - 10;
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wchar_t c;
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for (s32 i=0; i<size; ++i)
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{
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c = Text[i];
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bool lineBreak = false;
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if (c == L'\r') // Mac or Windows breaks
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{
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lineBreak = true;
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c = ' ';
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if (Text[i+1] == L'\n') // Windows breaks
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{
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Text.erase(i+1);
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--size;
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}
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}
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else if (c == L'\n') // Unix breaks
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{
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lineBreak = true;
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c = ' ';
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}
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// don't break if we're not a multi-line edit box
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if (!m_multiline)
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lineBreak = false;
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if (c == L' ' || c == 0 || i == (size-1))
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{
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if (!word.empty()) {
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// here comes the next whitespace, look if
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// we can break the last word to the next line.
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s32 whitelgth = font->getDimension(whitespace.c_str()).Width;
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s32 worldlgth = font->getDimension(word.c_str()).Width;
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if (m_word_wrap && length + worldlgth + whitelgth > elWidth)
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{
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// break to next line
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length = worldlgth;
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m_broken_text.push_back(line);
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m_broken_text_positions.push_back(lastLineStart);
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lastLineStart = i - (s32)word.size();
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line = word;
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}
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else
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{
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// add word to line
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line += whitespace;
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line += word;
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length += whitelgth + worldlgth;
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}
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word = L"";
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whitespace = L"";
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}
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whitespace += c;
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// compute line break
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if (lineBreak)
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{
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line += whitespace;
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line += word;
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m_broken_text.push_back(line);
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m_broken_text_positions.push_back(lastLineStart);
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lastLineStart = i+1;
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line = L"";
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word = L"";
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whitespace = L"";
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length = 0;
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}
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}
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else
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{
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// yippee this is a word..
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word += c;
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}
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}
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line += whitespace;
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line += word;
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m_broken_text.push_back(line);
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m_broken_text_positions.push_back(lastLineStart);
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}
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void intlGUIEditBox::setTextRect(s32 line)
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{
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core::dimension2du d;
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IGUISkin* skin = Environment->getSkin();
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if (!skin)
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return;
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IGUIFont* font = m_override_font ? m_override_font : skin->getFont();
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if (!font)
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return;
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// get text dimension
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const u32 lineCount = (m_word_wrap || m_multiline) ? m_broken_text.size() : 1;
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if (m_word_wrap || m_multiline)
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{
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d = font->getDimension(m_broken_text[line].c_str());
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}
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else
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{
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d = font->getDimension(Text.c_str());
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d.Height = AbsoluteRect.getHeight();
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}
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d.Height += font->getKerningHeight();
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// justification
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switch (m_halign)
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{
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case EGUIA_CENTER:
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// align to h centre
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m_current_text_rect.UpperLeftCorner.X = (m_frame_rect.getWidth()/2) - (d.Width/2);
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m_current_text_rect.LowerRightCorner.X = (m_frame_rect.getWidth()/2) + (d.Width/2);
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break;
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case EGUIA_LOWERRIGHT:
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// align to right edge
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m_current_text_rect.UpperLeftCorner.X = m_frame_rect.getWidth() - d.Width;
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m_current_text_rect.LowerRightCorner.X = m_frame_rect.getWidth();
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break;
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default:
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// align to left edge
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m_current_text_rect.UpperLeftCorner.X = 0;
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m_current_text_rect.LowerRightCorner.X = d.Width;
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}
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switch (m_valign)
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{
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case EGUIA_CENTER:
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// align to v centre
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m_current_text_rect.UpperLeftCorner.Y =
|
|
(m_frame_rect.getHeight()/2) - (lineCount*d.Height)/2 + d.Height*line;
|
|
break;
|
|
case EGUIA_LOWERRIGHT:
|
|
// align to bottom edge
|
|
m_current_text_rect.UpperLeftCorner.Y =
|
|
m_frame_rect.getHeight() - lineCount*d.Height + d.Height*line;
|
|
break;
|
|
default:
|
|
// align to top edge
|
|
m_current_text_rect.UpperLeftCorner.Y = d.Height*line;
|
|
break;
|
|
}
|
|
|
|
m_current_text_rect.UpperLeftCorner.X -= m_hscroll_pos;
|
|
m_current_text_rect.LowerRightCorner.X -= m_hscroll_pos;
|
|
m_current_text_rect.UpperLeftCorner.Y -= m_vscroll_pos;
|
|
m_current_text_rect.LowerRightCorner.Y = m_current_text_rect.UpperLeftCorner.Y + d.Height;
|
|
|
|
m_current_text_rect += m_frame_rect.UpperLeftCorner;
|
|
|
|
}
|
|
|
|
void intlGUIEditBox::calculateScrollPos()
|
|
{
|
|
if (!m_autoscroll)
|
|
return;
|
|
|
|
// calculate horizontal scroll position
|
|
s32 cursLine = getLineFromPos(m_cursor_pos);
|
|
setTextRect(cursLine);
|
|
|
|
// don't do horizontal scrolling when wordwrap is enabled.
|
|
if (!m_word_wrap)
|
|
{
|
|
// get cursor position
|
|
IGUISkin* skin = Environment->getSkin();
|
|
if (!skin)
|
|
return;
|
|
IGUIFont* font = m_override_font ? m_override_font : skin->getFont();
|
|
if (!font)
|
|
return;
|
|
|
|
core::stringw *txtLine = m_multiline ? &m_broken_text[cursLine] : &Text;
|
|
s32 cPos = m_multiline ? m_cursor_pos - m_broken_text_positions[cursLine] : m_cursor_pos;
|
|
|
|
s32 cStart = m_current_text_rect.UpperLeftCorner.X + m_hscroll_pos +
|
|
font->getDimension(txtLine->subString(0, cPos).c_str()).Width;
|
|
|
|
s32 cEnd = cStart + font->getDimension(L"_ ").Width;
|
|
|
|
if (m_frame_rect.LowerRightCorner.X < cEnd)
|
|
m_hscroll_pos = cEnd - m_frame_rect.LowerRightCorner.X;
|
|
else if (m_frame_rect.UpperLeftCorner.X > cStart)
|
|
m_hscroll_pos = cStart - m_frame_rect.UpperLeftCorner.X;
|
|
else
|
|
m_hscroll_pos = 0;
|
|
|
|
// todo: adjust scrollbar
|
|
}
|
|
|
|
if (!m_word_wrap && !m_multiline)
|
|
return;
|
|
|
|
// vertical scroll position
|
|
if (m_frame_rect.LowerRightCorner.Y < m_current_text_rect.LowerRightCorner.Y)
|
|
m_vscroll_pos += m_current_text_rect.LowerRightCorner.Y - m_frame_rect.LowerRightCorner.Y; // scrolling downwards
|
|
else if (m_frame_rect.UpperLeftCorner.Y > m_current_text_rect.UpperLeftCorner.Y)
|
|
m_vscroll_pos += m_current_text_rect.UpperLeftCorner.Y - m_frame_rect.UpperLeftCorner.Y; // scrolling upwards
|
|
|
|
// todo: adjust scrollbar
|
|
if (m_vscrollbar)
|
|
m_vscrollbar->setPos(m_vscroll_pos);
|
|
}
|
|
|
|
|
|
//! Create a vertical scrollbar
|
|
void intlGUIEditBox::createVScrollBar()
|
|
{
|
|
s32 fontHeight = 1;
|
|
|
|
if (m_override_font) {
|
|
fontHeight = m_override_font->getDimension(L"").Height;
|
|
} else {
|
|
if (IGUISkin* skin = Environment->getSkin()) {
|
|
if (IGUIFont* font = skin->getFont()) {
|
|
fontHeight = font->getDimension(L"").Height;
|
|
}
|
|
}
|
|
}
|
|
|
|
irr::core::rect<s32> scrollbarrect = m_frame_rect;
|
|
scrollbarrect.UpperLeftCorner.X += m_frame_rect.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);
|
|
}
|
|
|
|
} // end namespace gui
|
|
} // end namespace irr
|