imageposition.cpp

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 #include "imageposition.h"
00021 
00022 #include <qpainter.h>
00023 #include <kstandarddirs.h>
00024 
00025 static void draw3DPage(QPainter *p, QRect r)
00026 {
00027     // draw white page
00028     p->fillRect(r,Qt::white);
00029     // draw 3D border
00030     p->setPen(Qt::black);
00031     p->moveTo(r.left(),r.bottom());
00032     p->lineTo(r.right(),r.bottom());
00033     p->lineTo(r.right(),r.top());
00034     p->setPen(Qt::darkGray);
00035     p->lineTo(r.left(),r.top());
00036     p->lineTo(r.left(),r.bottom());
00037     p->setPen(Qt::gray);
00038     p->moveTo(r.left()+1,r.bottom()-1);
00039     p->lineTo(r.right()-1,r.bottom()-1);
00040     p->lineTo(r.right()-1,r.top()+1);
00041 }
00042 
00043 ImagePosition::ImagePosition(QWidget *parent, const char *name)
00044     : QWidget(parent,name)
00045 {
00046     position_ = Center;
00047     setMinimumSize(sizeHint());
00048     setSizePolicy(QSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding));
00049     pix_.load(locate("data", "kdeprint/preview-mini.png"));
00050 }
00051 
00052 ImagePosition::~ImagePosition()
00053 {
00054 }
00055 
00056 void ImagePosition::setPosition(const char *type)
00057 {
00058     int pos(Center);
00059     if (strcmp(type,"top-left") == 0) pos = TopLeft;
00060     else if (strcmp(type,"top") == 0) pos = Top;
00061     else if (strcmp(type,"top-right") == 0) pos = TopRight;
00062     else if (strcmp(type,"left") == 0) pos = Left;
00063     else if (strcmp(type,"center") == 0) pos = Center;
00064     else if (strcmp(type,"right") == 0) pos = Right;
00065     else if (strcmp(type,"bottom-left") == 0) pos = BottomLeft;
00066     else if (strcmp(type,"bottom") == 0) pos = Bottom;
00067     else if (strcmp(type,"bottom-right") == 0) pos = BottomRight;
00068     setPosition((PositionType)pos);
00069 }
00070 
00071 void ImagePosition::setPosition(PositionType type)
00072 {
00073     if (position_ != type) {
00074         position_ = type;
00075         update();
00076     }
00077 }
00078 
00079 void ImagePosition::setPosition(int horiz, int vert)
00080 {
00081     int type = vert*3+horiz;
00082     setPosition((PositionType)type);
00083 }
00084 
00085 QString ImagePosition::positionString() const
00086 {
00087     switch (position_) {
00088        case TopLeft: return "top-left";
00089        case Top: return "top";
00090        case TopRight: return "top-right";
00091        case Left: return "left";
00092        case Center: return "center";
00093        case Right: return "right";
00094        case BottomLeft: return "bottom-left";
00095        case Bottom: return "bottom";
00096        case BottomRight: return "bottom-right";
00097     }
00098     return "center";
00099 }
00100 
00101 void ImagePosition::paintEvent(QPaintEvent*)
00102 {
00103     int horiz, vert, x, y;
00104     int margin = 5;
00105     int pw(width()), ph(height()), px(0), py(0);
00106 
00107     if (pw > ((ph * 3) / 4))
00108     {
00109         pw = (ph * 3) / 4;
00110         px = (width() - pw) / 2;
00111     }
00112     else
00113     {
00114         ph = (pw * 4) / 3;
00115         py = (height() - ph) / 2;
00116     }
00117     QRect   page(px, py, pw, ph), img(0, 0, pix_.width(), pix_.height());
00118 
00119     // compute img position
00120     horiz = position_%3;
00121     vert = position_/3;
00122     switch (horiz) {
00123        case 0: x = page.left()+margin; break;
00124        default:
00125        case 1: x = (page.left()+page.right()-img.width())/2; break;
00126        case 2: x = page.right()-margin-img.width(); break;
00127     }
00128     switch (vert) {
00129        case 0: y = page.top()+margin; break;
00130        default:
00131        case 1: y = (page.top()+page.bottom()-img.height())/2; break;
00132        case 2: y = page.bottom()-margin-img.height(); break;
00133     }
00134     img.moveTopLeft(QPoint(x,y));
00135 
00136     // draw page
00137     QPainter    p(this);
00138     draw3DPage(&p,page);
00139 
00140     // draw img
00141     /*p.setPen(darkRed);
00142     p.drawRect(img);
00143     p.drawLine(img.topLeft(),img.bottomRight());
00144     p.drawLine(img.topRight(),img.bottomLeft());*/
00145     p.drawPixmap(x, y, pix_);
00146 
00147     p.end();
00148 }
00149 
00150 QSize ImagePosition::sizeHint() const
00151 {
00152     return QSize(60, 80);
00153 }
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