marginpreview.h

00001 /*
00002  *  This file is part of the KDE libraries
00003  *  Copyright (c) 2001 Michael Goffioul <kdeprint@swing.be>
00004  *
00005  *  This library is free software; you can redistribute it and/or
00006  *  modify it under the terms of the GNU Library General Public
00007  *  License version 2 as published by the Free Software Foundation.
00008  *
00009  *  This library is distributed in the hope that it will be useful,
00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  *  Library General Public License for more details.
00013  *
00014  *  You should have received a copy of the GNU Library General Public License
00015  *  along with this library; see the file COPYING.LIB.  If not, write to
00016  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017  *  Boston, MA 02110-1301, USA.
00018  **/
00019 
00020 #ifndef MARGINPREVIEW_H
00021 #define MARGINPREVIEW_H
00022 
00023 #include <qwidget.h>
00024 
00025 class MarginPreview : public QWidget
00026 {
00027     Q_OBJECT
00028 
00029 public:
00030     MarginPreview(QWidget *parent = 0, const char *name = 0);
00031     ~MarginPreview();
00032     // note : unit -> points (1/72th in)
00033     void setPageSize(float w, float h);
00034     void setMargins(float t, float b, float l, float r);
00035     void setNoPreview(bool on);
00036     void setSymetric(bool on);
00037     enum    StateType { Fixed = -1, None = 0, TMoving, BMoving, LMoving, RMoving };
00038 
00039 public slots:
00040     void enableRubberBand(bool on);
00041 
00042 signals:
00043     void marginChanged(int type, float value);
00044 
00045 protected:
00046     void paintEvent(QPaintEvent *);
00047     void resizeEvent(QResizeEvent *);
00048     void mouseMoveEvent(QMouseEvent *);
00049     void mousePressEvent(QMouseEvent *);
00050     void mouseReleaseEvent(QMouseEvent *);
00051     int locateMouse(const QPoint& p);
00052     void drawTempLine(QPainter*);
00053 
00054 private:
00055     float   width_, height_;
00056     float   top_, bottom_, left_, right_;
00057     QRect   box_, margbox_;
00058     float   zoom_;
00059     bool    nopreview_;
00060     int state_;
00061     int oldpos_;
00062     bool    symetric_;
00063 };
00064 
00065 #endif
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