From 2bda8f7717adf28da4af0d34fb82f63d2868c31d Mon Sep 17 00:00:00 2001
From: toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>
Date: Wed, 25 Nov 2009 17:56:58 +0000
Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
 BUG:215923

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdeutils@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
---
 kcalc/kcalcdisplay.h | 152 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 152 insertions(+)
 create mode 100644 kcalc/kcalcdisplay.h

(limited to 'kcalc/kcalcdisplay.h')

diff --git a/kcalc/kcalcdisplay.h b/kcalc/kcalcdisplay.h
new file mode 100644
index 0000000..4f72fb7
--- /dev/null
+++ b/kcalc/kcalcdisplay.h
@@ -0,0 +1,152 @@
+/*
+
+ KCalc 
+
+ Copyright (C) Bernd Johannes Wuebben
+               wuebben@math.cornell.edu
+	       wuebben@kde.org
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+ */
+
+
+#ifndef _D_KCALCDISPLAY_H_
+#define _D_KCALCDISPLAY_H_
+
+#include <stdlib.h>
+#include <qlabel.h>
+#include <qtimer.h>
+#include "knumber.h"
+#include "kcalctype.h"
+
+#if defined HAVE_LONG_DOUBLE && defined HAVE_L_FUNCS
+	#define PRINT_FLOAT     "%.*Lf"
+	#define PRINT_LONG_BIG  "%.*Lg"
+	#define PRINT_LONG      "%Lg"
+#else
+	#define PRINT_FLOAT     "%.*f"
+	#define PRINT_LONG_BIG  "%.*g"
+	#define PRINT_LONG      "%g"
+#endif
+
+#ifdef HAVE_LONG_LONG
+	#define PRINT_OCTAL  "%llo"
+	#define PRINT_HEX    "%llX"
+#else
+	#define PRINT_OCTAL  "%lo"
+	#define PRINT_HEX    "%lX"
+#endif
+
+#define		NUM_STATUS_TEXT 4
+
+/*
+  This class provides a pocket calculator display.  The display has
+  implicitely two major modes: One is for editing and one is purely
+  for displaying.
+
+  When one uses "setAmount", the given amount is displayed, and the
+  amount which was possibly typed in before is lost. At the same time
+  this new value can not be modified.
+  
+  On the other hand, "addNewChar" adds a new digit to the amount that
+  is being typed in. If "setAmount" was used before, the display is
+  cleared and a new input starts.
+
+  TODO: Check overflows, number of digits and such...
+*/
+
+enum NumBase {
+	NB_BINARY = 2,
+	NB_OCTAL = 8,
+	NB_DECIMAL = 10,
+	NB_HEX = 16
+};
+
+
+class KCalcDisplay : public QLabel
+{
+Q_OBJECT
+
+public:
+	KCalcDisplay(QWidget *parent=0, const char *name=0);
+	~KCalcDisplay();
+
+protected:
+	void  mousePressEvent ( QMouseEvent *);
+	virtual void drawContents(QPainter *p);
+
+public:
+	enum Event {
+	  EventReset, // resets display
+	  EventClear, // if no _error reset display
+	  EventError,
+	  EventChangeSign
+	};
+	bool sendEvent(Event const event);
+	void deleteLastDigit(void);
+	KNumber const & getAmount(void) const;
+	void newCharacter(char const new_char);
+	bool setAmount(KNumber const & new_amount);
+	int setBase(NumBase new_base);
+	void setBeep(bool flag);
+	void setGroupDigits(bool flag);
+	void setFixedPrecision(int precision);
+	void setPrecision(int precision);
+	void setText(QString const &string);
+	QString text() const;
+	bool updateDisplay(void);
+	void setStatusText(uint i, const QString& text);
+	virtual QSize sizeHint() const;
+private:
+	bool _beep;
+	bool _groupdigits;
+	int  _button;
+	bool _lit;
+	NumBase _num_base;
+
+	int _precision;
+	int _fixed_precision; // "-1" = no fixed_precision
+
+	KNumber _display_amount;
+private:
+	bool changeSign(void);
+	void invertColors(void);
+
+	// only used for input of new numbers
+	bool _eestate;
+	bool _period;
+	bool _neg_sign;
+	QString _str_int;
+	QString _str_int_exp;
+	QString _str_status[NUM_STATUS_TEXT];
+
+	QTimer* selection_timer;
+
+signals:
+	void clicked(void);
+	void changedText(QString const &);
+
+public slots:
+	void slotCut(void);
+	void slotCopy(void);
+	void slotPaste(bool bClipboard=true);
+
+private slots:
+	void slotSelectionTimedOut(void);
+	void slotDisplaySelected(void);
+};
+
+#endif // _KCALCDISPLAY_H_
-- 
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