731 lines
16 KiB
C++
731 lines
16 KiB
C++
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// Copyright (C) 2002-2007 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 "CGUIEditBox.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 "rect.h"
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#include "os.h"
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#include "Keycodes.h"
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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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CGUIEditBox::CGUIEditBox(const wchar_t* text, bool border, IGUIEnvironment* environment,
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IGUIElement* parent, s32 id,
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const core::rect<s32>& rectangle)
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: IGUIEditBox(environment, parent, id, rectangle), MouseMarking(false),
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Border(border), OverrideColorEnabled(false), MarkBegin(0), MarkEnd(0),
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OverrideColor(video::SColor(101,255,255,255)),
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OverrideFont(0), CursorPos(0), ScrollPos(0), Max(0)
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{
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#ifdef _DEBUG
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setDebugName("CGUIEditBox");
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#endif
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Text = text;
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Operator = environment->getOSOperator();
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if (Operator)
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Operator->grab();
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}
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//! destructor
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CGUIEditBox::~CGUIEditBox()
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{
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if (OverrideFont)
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OverrideFont->drop();
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if (Operator)
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Operator->drop();
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}
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//! Sets another skin independent font.
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void CGUIEditBox::setOverrideFont(IGUIFont* font)
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{
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if (OverrideFont)
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OverrideFont->drop();
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OverrideFont = font;
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if (OverrideFont)
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OverrideFont->grab();
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}
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//! Sets another color for the text.
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void CGUIEditBox::setOverrideColor(video::SColor color)
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{
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OverrideColor = color;
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OverrideColorEnabled = true;
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}
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//! Sets if the text should use the overide color or the
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//! color in the gui skin.
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void CGUIEditBox::enableOverrideColor(bool enable)
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{
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OverrideColorEnabled = enable;
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}
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//! called if an event happened.
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bool CGUIEditBox::OnEvent(SEvent event)
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{
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switch(event.EventType)
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{
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case EET_GUI_EVENT:
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if (event.GUIEvent.EventType == EGET_ELEMENT_FOCUS_LOST)
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{
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if (event.GUIEvent.Caller == (IGUIElement*)this)
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{
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MouseMarking = false;
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MarkBegin = 0;
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MarkEnd = 0;
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}
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}
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break;
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case EET_KEY_INPUT_EVENT:
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if (processKey(event))
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return true;
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break;
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case EET_MOUSE_INPUT_EVENT:
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if (processMouse(event))
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return true;
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break;
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}
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return Parent ? Parent->OnEvent(event) : false;
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}
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bool CGUIEditBox::processKey(const SEvent& event)
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{
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if (!event.KeyInput.PressedDown)
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return false;
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// control shortcut handling
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if (event.KeyInput.Control)
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{
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switch(event.KeyInput.Key)
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{
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case KEY_KEY_C:
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// copy to clipboard
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if (Operator && MarkBegin != MarkEnd)
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{
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s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
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s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
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core::stringc s;
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s = Text.subString(realmbgn, realmend - realmbgn).c_str();
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Operator->copyToClipboard(s.c_str());
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}
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break;
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case KEY_KEY_X:
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if ( !this->IsEnabled )
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break;
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// cut to the clipboard
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if (Operator && MarkBegin != MarkEnd)
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{
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s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
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s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
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// copy
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core::stringc sc;
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sc = Text.subString(realmbgn, realmend - realmbgn).c_str();
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Operator->copyToClipboard(sc.c_str());
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// delete
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core::stringw s;
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s = Text.subString(0, realmbgn);
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s.append( Text.subString(realmend, Text.size()-realmend) );
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Text = s;
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CursorPos = realmbgn;
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MarkBegin = 0;
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MarkEnd = 0;
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}
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break;
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case KEY_KEY_V:
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if ( !this->IsEnabled )
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break;
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// paste from the clipboard
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if (Operator)
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{
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s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
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s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
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// add new character
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const c8* p = Operator->getTextFromClipboard();
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if (p)
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{
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if (MarkBegin == MarkEnd)
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{
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// insert text
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core::stringw s = Text.subString(0, CursorPos);
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s.append(p);
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s.append( Text.subString(CursorPos, Text.size()-CursorPos) );
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if (!Max || s.size()<=(u32)Max) // thx to Fish FH for fix
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{
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Text = s;
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s = p;
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CursorPos += s.size();
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}
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}
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else
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{
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// replace text
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core::stringw s = Text.subString(0, realmbgn);
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s.append(p);
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s.append( Text.subString(realmend, Text.size()-realmend) );
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if (!Max || s.size()<=(u32)Max) // thx to Fish FH for fix
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{
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Text = s;
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s = p;
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CursorPos = realmbgn + s.size();
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}
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}
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}
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MarkBegin = 0;
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MarkEnd = 0;
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}
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break;
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default:
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return false;
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}
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}
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// default keyboard handling
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if (!event.KeyInput.Control)
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switch(event.KeyInput.Key)
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{
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case KEY_END:
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if (event.KeyInput.Shift)
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{
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if (MarkBegin == MarkEnd)
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MarkBegin = CursorPos;
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MarkEnd = Text.size();
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}
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else
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{
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MarkBegin = 0;
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MarkEnd = 0;
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}
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CursorPos = Text.size();
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BlinkStartTime = os::Timer::getTime();
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break;
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case KEY_HOME:
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if (event.KeyInput.Shift)
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{
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if (MarkBegin == MarkEnd)
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MarkBegin = CursorPos;
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MarkEnd = 0;
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}
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else
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{
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MarkBegin = 0;
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MarkEnd = 0;
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}
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CursorPos = 0;
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BlinkStartTime = os::Timer::getTime();
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break;
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case KEY_RETURN:
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{
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SEvent e;
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e.EventType = EET_GUI_EVENT;
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e.GUIEvent.Caller = this;
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e.GUIEvent.EventType = EGET_EDITBOX_ENTER;
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Parent->OnEvent(e);
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}
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break;
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case KEY_LEFT:
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if (event.KeyInput.Shift)
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{
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if (CursorPos > 0)
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{
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if (MarkBegin == MarkEnd)
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MarkBegin = CursorPos;
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MarkEnd = CursorPos-1;
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}
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}
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else
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{
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MarkBegin = 0;
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MarkEnd = 0;
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}
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if (CursorPos > 0) CursorPos--;
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BlinkStartTime = os::Timer::getTime();
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break;
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case KEY_RIGHT:
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if (event.KeyInput.Shift)
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{
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if (Text.size() > (u32)CursorPos)
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{
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if (MarkBegin == MarkEnd)
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MarkBegin = CursorPos;
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MarkEnd = CursorPos+1;
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}
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}
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else
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{
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MarkBegin = 0;
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MarkEnd = 0;
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}
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if (Text.size() > (u32)CursorPos) CursorPos++;
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BlinkStartTime = os::Timer::getTime();
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break;
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case KEY_BACK:
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if ( !this->IsEnabled )
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break;
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if (Text.size())
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{
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core::stringw s;
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if (MarkBegin != MarkEnd)
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{
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// delete marked text
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s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
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s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
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s = Text.subString(0, realmbgn);
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s.append( Text.subString(realmend, Text.size()-realmend) );
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Text = s;
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CursorPos = realmbgn;
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}
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else
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{
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// delete text behind cursor
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if (CursorPos>0)
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s = Text.subString(0, CursorPos-1);
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else
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s = L"";
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s.append( Text.subString(CursorPos, Text.size()-CursorPos) );
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Text = s;
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--CursorPos;
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}
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if (CursorPos < 0)
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CursorPos = 0;
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BlinkStartTime = os::Timer::getTime();
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MarkBegin = 0;
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MarkEnd = 0;
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}
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break;
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case KEY_DELETE:
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if ( !this->IsEnabled )
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break;
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if (Text.size() != 0)
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{
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core::stringw s;
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if (MarkBegin != MarkEnd)
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{
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// delete marked text
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s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
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s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
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s = Text.subString(0, realmbgn);
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s.append( Text.subString(realmend, Text.size()-realmend) );
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Text = s;
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CursorPos = realmbgn;
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}
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else
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{
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// delete text before cursor
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s = Text.subString(0, CursorPos);
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s.append( Text.subString(CursorPos+1, Text.size()-CursorPos-1) );
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Text = s;
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}
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if (CursorPos > (s32)Text.size())
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CursorPos = (s32)Text.size();
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BlinkStartTime = os::Timer::getTime();
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MarkBegin = 0;
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MarkEnd = 0;
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}
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break;
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default:
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if ( !this->IsEnabled )
|
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break;
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if (event.KeyInput.Char != 0)
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{
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if (Text.size() < (u32)Max || Max == 0)
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{
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core::stringw s;
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||
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if (MarkBegin != MarkEnd)
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{
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// replace marked text
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s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
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s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
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s = Text.subString(0, realmbgn);
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s.append(event.KeyInput.Char);
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s.append( Text.subString(realmend, Text.size()-realmend) );
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Text = s;
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CursorPos = realmbgn+1;
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||
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}
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else
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||
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{
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// add new character
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||
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s = Text.subString(0, CursorPos);
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||
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s.append(event.KeyInput.Char);
|
||
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s.append( Text.subString(CursorPos, Text.size()-CursorPos) );
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||
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Text = s;
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||
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++CursorPos;
|
||
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}
|
||
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|
||
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BlinkStartTime = os::Timer::getTime();
|
||
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MarkBegin = 0;
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||
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MarkEnd = 0;
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||
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}
|
||
|
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}
|
||
|
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break;
|
||
|
|
}
|
||
|
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|
||
|
|
// calculate scrollpos
|
||
|
|
|
||
|
|
IGUIFont* font = OverrideFont;
|
||
|
|
IGUISkin* skin = Environment->getSkin();
|
||
|
|
if (!OverrideFont)
|
||
|
|
font = skin->getFont();
|
||
|
|
|
||
|
|
s32 cursorwidth = font->getDimension(L"_ ").Width;
|
||
|
|
|
||
|
|
s32 minwidht = cursorwidth*2;
|
||
|
|
if (minwidht >= AbsoluteRect.getWidth())
|
||
|
|
minwidht = AbsoluteRect.getWidth() / 2;
|
||
|
|
|
||
|
|
s32 tries = Text.size()*2;
|
||
|
|
if (tries < 100)
|
||
|
|
tries = 100;
|
||
|
|
|
||
|
|
for (s32 t=0; t<tries; ++t)
|
||
|
|
{
|
||
|
|
core::stringw s = Text.subString(0,CursorPos);
|
||
|
|
s32 charcursorpos = font->getDimension(s.c_str()).Width;
|
||
|
|
|
||
|
|
s = Text.subString(0, ScrollPos);
|
||
|
|
s32 charscrollpos = font->getDimension(s.c_str()).Width;
|
||
|
|
|
||
|
|
if ((charcursorpos + cursorwidth - charscrollpos) > AbsoluteRect.getWidth())
|
||
|
|
ScrollPos++;
|
||
|
|
else
|
||
|
|
if ((charcursorpos + cursorwidth - charscrollpos) < minwidht)
|
||
|
|
{
|
||
|
|
if (ScrollPos > 0)
|
||
|
|
ScrollPos--;
|
||
|
|
else
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
//! draws the element and its children
|
||
|
|
void CGUIEditBox::draw()
|
||
|
|
{
|
||
|
|
if (!IsVisible)
|
||
|
|
return;
|
||
|
|
|
||
|
|
bool focus = Environment->hasFocus(this);
|
||
|
|
|
||
|
|
IGUISkin* skin = Environment->getSkin();
|
||
|
|
if (!skin)
|
||
|
|
return;
|
||
|
|
|
||
|
|
irr::video::IVideoDriver* driver = Environment->getVideoDriver();
|
||
|
|
|
||
|
|
core::rect<s32> frameRect(AbsoluteRect);
|
||
|
|
|
||
|
|
// draw the border
|
||
|
|
|
||
|
|
if (Border)
|
||
|
|
{
|
||
|
|
skin->draw3DSunkenPane(this, skin->getColor(EGDC_WINDOW),
|
||
|
|
false, true, frameRect, &AbsoluteClippingRect);
|
||
|
|
|
||
|
|
frameRect.UpperLeftCorner.X += skin->getSize(EGDS_TEXT_DISTANCE_X);
|
||
|
|
}
|
||
|
|
|
||
|
|
// draw the text
|
||
|
|
|
||
|
|
IGUIFont* font = OverrideFont;
|
||
|
|
if (!OverrideFont)
|
||
|
|
font = skin->getFont();
|
||
|
|
|
||
|
|
if (font)
|
||
|
|
{
|
||
|
|
// calculate cursor pos
|
||
|
|
|
||
|
|
core::stringw s = Text.subString(0,CursorPos);
|
||
|
|
s32 charcursorpos = font->getDimension(s.c_str()).Width;
|
||
|
|
|
||
|
|
s = Text.subString(0, ScrollPos);
|
||
|
|
s32 charscrollpos = font->getDimension(s.c_str()).Width;
|
||
|
|
|
||
|
|
core::rect<s32> rct;
|
||
|
|
|
||
|
|
// draw mark
|
||
|
|
|
||
|
|
if (focus && MarkBegin != MarkEnd)
|
||
|
|
{
|
||
|
|
rct = frameRect;
|
||
|
|
|
||
|
|
rct.LowerRightCorner.Y -= skin->getSize(EGDS_TEXT_DISTANCE_Y);
|
||
|
|
rct.UpperLeftCorner.Y += skin->getSize(EGDS_TEXT_DISTANCE_Y);
|
||
|
|
|
||
|
|
s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
|
||
|
|
s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
|
||
|
|
|
||
|
|
s = Text.subString(0, realmbgn);
|
||
|
|
s32 mbegin = font->getDimension(s.c_str()).Width;
|
||
|
|
|
||
|
|
s = Text.subString(realmbgn, realmend - realmbgn);
|
||
|
|
s32 mend = font->getDimension(s.c_str()).Width;
|
||
|
|
|
||
|
|
rct.UpperLeftCorner.X += mbegin - charscrollpos;
|
||
|
|
rct.LowerRightCorner.X = rct.UpperLeftCorner.X + mend;
|
||
|
|
|
||
|
|
driver->draw2DRectangle(skin->getColor(EGDC_HIGH_LIGHT), rct, &AbsoluteClippingRect);
|
||
|
|
}
|
||
|
|
|
||
|
|
// draw cursor
|
||
|
|
|
||
|
|
if (focus && (os::Timer::getTime() - BlinkStartTime) % 700 < 350)
|
||
|
|
{
|
||
|
|
rct = frameRect;
|
||
|
|
rct.UpperLeftCorner.X += charcursorpos;
|
||
|
|
rct.UpperLeftCorner.X -= charscrollpos;
|
||
|
|
|
||
|
|
font->draw(L"_", rct,
|
||
|
|
OverrideColorEnabled ? OverrideColor : skin->getColor(EGDC_BUTTON_TEXT),
|
||
|
|
false, true, &AbsoluteClippingRect);
|
||
|
|
}
|
||
|
|
|
||
|
|
// draw text
|
||
|
|
|
||
|
|
if (Text.size())
|
||
|
|
{
|
||
|
|
rct = frameRect;
|
||
|
|
rct.UpperLeftCorner.X -= charscrollpos;
|
||
|
|
|
||
|
|
// Save the override color information.
|
||
|
|
// Then, alter it if the edit box is disabled.
|
||
|
|
bool prevOver = OverrideColorEnabled;
|
||
|
|
video::SColor prevColor = OverrideColor;
|
||
|
|
if ( !this->IsEnabled && !OverrideColorEnabled )
|
||
|
|
{
|
||
|
|
OverrideColorEnabled = true;
|
||
|
|
OverrideColor = skin->getColor( EGDC_GRAY_TEXT );
|
||
|
|
}
|
||
|
|
|
||
|
|
if (focus && MarkBegin != MarkEnd)
|
||
|
|
{
|
||
|
|
// marked text
|
||
|
|
|
||
|
|
font->draw(Text.c_str(), rct,
|
||
|
|
OverrideColorEnabled ? OverrideColor : skin->getColor(EGDC_BUTTON_TEXT),
|
||
|
|
false, true, &AbsoluteClippingRect);
|
||
|
|
|
||
|
|
s32 realmbgn = MarkBegin < MarkEnd ? MarkBegin : MarkEnd;
|
||
|
|
s32 realmend = MarkBegin < MarkEnd ? MarkEnd : MarkBegin;
|
||
|
|
|
||
|
|
s = Text.subString(0, realmbgn);
|
||
|
|
s32 mbegin = font->getDimension(s.c_str()).Width;
|
||
|
|
|
||
|
|
s = Text.subString(realmbgn, realmend - realmbgn);
|
||
|
|
|
||
|
|
rct.UpperLeftCorner.X += mbegin;
|
||
|
|
|
||
|
|
font->draw(s.c_str(), rct,
|
||
|
|
OverrideColorEnabled ? OverrideColor : skin->getColor(EGDC_HIGH_LIGHT_TEXT),
|
||
|
|
false, true, &AbsoluteClippingRect);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// normal text
|
||
|
|
font->draw(Text.c_str(), rct,
|
||
|
|
OverrideColorEnabled ? OverrideColor : skin->getColor(EGDC_BUTTON_TEXT),
|
||
|
|
false, true, &AbsoluteClippingRect);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Return the override color information to its previous settings.
|
||
|
|
OverrideColorEnabled = prevOver;
|
||
|
|
OverrideColor = prevColor;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//! Sets the new caption of this element.
|
||
|
|
void CGUIEditBox::setText(const wchar_t* text)
|
||
|
|
{
|
||
|
|
Text = text;
|
||
|
|
CursorPos = 0;
|
||
|
|
ScrollPos = 0;
|
||
|
|
MarkBegin = 0;
|
||
|
|
MarkEnd = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//! 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 CGUIEditBox::setMax(s32 max)
|
||
|
|
{
|
||
|
|
Max = max;
|
||
|
|
if (Max < 0)
|
||
|
|
Max = 0;
|
||
|
|
|
||
|
|
if (Text.size() > (u32)Max && Max != 0)
|
||
|
|
Text = Text.subString(0, Max);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//! Returns maximum amount of characters, previously set by setMax();
|
||
|
|
s32 CGUIEditBox::getMax()
|
||
|
|
{
|
||
|
|
return Max;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
bool CGUIEditBox::processMouse(const SEvent& event)
|
||
|
|
{
|
||
|
|
switch(event.MouseInput.Event)
|
||
|
|
{
|
||
|
|
case irr::EMIE_LMOUSE_LEFT_UP:
|
||
|
|
if (Environment->hasFocus(this))
|
||
|
|
{
|
||
|
|
CursorPos = getCursorPos(event.MouseInput.X);
|
||
|
|
if (MouseMarking)
|
||
|
|
MarkEnd = CursorPos;
|
||
|
|
MouseMarking = false;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case irr::EMIE_MOUSE_MOVED:
|
||
|
|
{
|
||
|
|
if (MouseMarking)
|
||
|
|
{
|
||
|
|
CursorPos = getCursorPos(event.MouseInput.X);
|
||
|
|
MarkEnd = CursorPos;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case EMIE_LMOUSE_PRESSED_DOWN:
|
||
|
|
if (!Environment->hasFocus(this))
|
||
|
|
{
|
||
|
|
// get focus
|
||
|
|
BlinkStartTime = os::Timer::getTime();
|
||
|
|
Environment->setFocus(this);
|
||
|
|
MouseMarking = true;
|
||
|
|
CursorPos = getCursorPos(event.MouseInput.X);
|
||
|
|
MarkBegin = CursorPos;
|
||
|
|
MarkEnd = CursorPos;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (!AbsoluteClippingRect.isPointInside(
|
||
|
|
core::position2d<s32>(event.MouseInput.X, event.MouseInput.Y)))
|
||
|
|
{
|
||
|
|
// remove focus
|
||
|
|
Environment->removeFocus(this);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// move cursor
|
||
|
|
|
||
|
|
CursorPos = getCursorPos(event.MouseInput.X);
|
||
|
|
|
||
|
|
if (!MouseMarking)
|
||
|
|
MarkBegin = CursorPos;
|
||
|
|
|
||
|
|
MouseMarking = true;
|
||
|
|
MarkEnd = CursorPos;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
s32 CGUIEditBox::getCursorPos(s32 x)
|
||
|
|
{
|
||
|
|
IGUIFont* font = OverrideFont;
|
||
|
|
IGUISkin* skin = Environment->getSkin();
|
||
|
|
if (!OverrideFont)
|
||
|
|
font = skin->getFont();
|
||
|
|
|
||
|
|
core::stringw s = Text.subString(0, ScrollPos);
|
||
|
|
s32 charscrollpos = font->getDimension(s.c_str()).Width;
|
||
|
|
|
||
|
|
s32 idx = font->getCharacterFromPos(Text.c_str(), x - (AbsoluteRect.UpperLeftCorner.X + 3) + charscrollpos);
|
||
|
|
if (idx != -1)
|
||
|
|
return idx;
|
||
|
|
|
||
|
|
return Text.size();
|
||
|
|
}
|
||
|
|
|
||
|
|
//! Writes attributes of the element.
|
||
|
|
void CGUIEditBox::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options=0)
|
||
|
|
{
|
||
|
|
IGUIEditBox::serializeAttributes(out,options);
|
||
|
|
out->addBool ("OverrideColorEnabled", OverrideColorEnabled );
|
||
|
|
out->addColor ("OverrideColor", OverrideColor);
|
||
|
|
// out->addFont("OverrideFont",OverrideFont);
|
||
|
|
out->addInt ("MaxChars", Max);
|
||
|
|
}
|
||
|
|
|
||
|
|
//! Reads attributes of the element
|
||
|
|
void CGUIEditBox::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options=0)
|
||
|
|
{
|
||
|
|
IGUIEditBox::deserializeAttributes(in,options);
|
||
|
|
setOverrideColor(in->getAttributeAsColor("OverrideColor"));
|
||
|
|
enableOverrideColor(in->getAttributeAsBool("OverrideColorEnabled"));
|
||
|
|
setMax(in->getAttributeAsInt("MaxChars"));
|
||
|
|
|
||
|
|
// setOverrideFont(in->getAttributeAsFont("OverrideFont"));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
} // end namespace gui
|
||
|
|
} // end namespace irr
|
||
|
|
|