File indexing completed on 2024-04-28 04:20:13
0001 0002 /* 0003 Copyright (c) 2003-2007 Clarence Dang <dang@kde.org> 0004 All rights reserved. 0005 0006 Redistribution and use in source and binary forms, with or without 0007 modification, are permitted provided that the following conditions 0008 are met: 0009 0010 1. Redistributions of source code must retain the above copyright 0011 notice, this list of conditions and the following disclaimer. 0012 2. Redistributions in binary form must reproduce the above copyright 0013 notice, this list of conditions and the following disclaimer in the 0014 documentation and/or other materials provided with the distribution. 0015 0016 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 0017 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 0018 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 0019 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 0020 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 0021 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 0022 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 0023 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 0024 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 0025 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 0026 */ 0027 0028 #define DEBUG_KP_DOCUMENT_SAVE_OPTIONS_WIDGET 0 0029 0030 0031 #include "kpDocumentSaveOptionsPreviewDialog.h" 0032 0033 #include <QGridLayout> 0034 #include <QLabel> 0035 #include <QPixmap> 0036 0037 #include "kpLogCategories.h" 0038 #include <KLocalizedString> 0039 0040 #include "commands/kpCommandSize.h" 0041 #include "kpDefs.h" 0042 #include "document/kpDocument.h" 0043 #include "pixmapfx/kpPixmapFX.h" 0044 #include "generic/widgets/kpResizeSignallingLabel.h" 0045 #include "dialogs/imagelib/transforms/kpTransformPreviewDialog.h" 0046 0047 0048 // protected static 0049 const QSize kpDocumentSaveOptionsPreviewDialog::s_pixmapLabelMinimumSize (25, 25); 0050 0051 0052 kpDocumentSaveOptionsPreviewDialog::kpDocumentSaveOptionsPreviewDialog ( 0053 QWidget *parent ) 0054 : kpSubWindow (parent), 0055 m_filePixmap (nullptr), 0056 m_fileSize (0) 0057 { 0058 setWindowTitle (i18nc ("@title:window", "Save Preview")); 0059 0060 auto *baseWidget = this;//new QWidget (this); 0061 //setMainWidget (baseWidget); 0062 0063 0064 auto *lay = new QGridLayout ( baseWidget ); 0065 0066 m_filePixmapLabel = new kpResizeSignallingLabel (baseWidget); 0067 m_fileSizeLabel = new QLabel (baseWidget); 0068 0069 0070 m_filePixmapLabel->setMinimumSize (s_pixmapLabelMinimumSize); 0071 0072 0073 lay->addWidget (m_filePixmapLabel, 0, 0); 0074 lay->addWidget (m_fileSizeLabel, 1, 0, Qt::AlignHCenter); 0075 0076 0077 lay->setRowStretch (0, 1); 0078 0079 0080 connect (m_filePixmapLabel, &kpResizeSignallingLabel::resized, 0081 this, &kpDocumentSaveOptionsPreviewDialog::updatePixmapPreview); 0082 } 0083 0084 kpDocumentSaveOptionsPreviewDialog::~kpDocumentSaveOptionsPreviewDialog () 0085 { 0086 delete m_filePixmap; 0087 } 0088 0089 0090 // public 0091 QSize kpDocumentSaveOptionsPreviewDialog::preferredMinimumSize () const 0092 { 0093 const auto contentsWidth = 180; 0094 const auto totalMarginsWidth = fontMetrics ().height (); 0095 0096 return {contentsWidth + totalMarginsWidth, contentsWidth * 3 / 4 + totalMarginsWidth}; 0097 } 0098 0099 0100 // public slot 0101 void kpDocumentSaveOptionsPreviewDialog::setFilePixmapAndSize (const QImage &pixmap, 0102 qint64 fileSize) 0103 { 0104 delete m_filePixmap; 0105 m_filePixmap = new QImage (pixmap); 0106 0107 updatePixmapPreview (); 0108 0109 m_fileSize = fileSize; 0110 0111 const kpCommandSize::SizeType pixmapSize = kpCommandSize::PixmapSize (pixmap); 0112 // (int cast is safe as long as the file size is not more than 20 million 0113 // -- i.e. INT_MAX / 100 -- times the pixmap size) 0114 const int percent = pixmapSize ? 0115 qMax (1, 0116 static_cast<int> (static_cast<kpCommandSize::SizeType> (fileSize * 100 / pixmapSize))) : 0117 0; 0118 #if DEBUG_KP_DOCUMENT_SAVE_OPTIONS_WIDGET 0119 qCDebug(kpLogDialogs) << "kpDocumentSaveOptionsPreviewDialog::setFilePixmapAndSize()" 0120 << " pixmapSize=" << pixmapSize 0121 << " fileSize=" << fileSize 0122 << " raw fileSize/pixmapSize%=" 0123 << (pixmapSize ? (kpCommandSize::SizeType) fileSize * 100 / pixmapSize : 0); 0124 #endif 0125 0126 m_fileSizeLabel->setText (i18np ("1 byte (approx. %2%)", "%1 bytes (approx. %2%)", 0127 m_fileSize, percent)); 0128 } 0129 0130 // public slot 0131 void kpDocumentSaveOptionsPreviewDialog::updatePixmapPreview () 0132 { 0133 #if DEBUG_KP_DOCUMENT_SAVE_OPTIONS_WIDGET 0134 qCDebug(kpLogDialogs) << "kpDocumentSaveOptionsPreviewDialog::updatePreviewPixmap()" 0135 << " filePixmapLabel.size=" << m_filePixmapLabel->size () 0136 << " filePixmap.size=" << m_filePixmap->size (); 0137 #endif 0138 0139 if (m_filePixmap) 0140 { 0141 int maxNewWidth = qMin (m_filePixmap->width (), 0142 m_filePixmapLabel->width ()), 0143 maxNewHeight = qMin (m_filePixmap->height (), 0144 m_filePixmapLabel->height ()); 0145 0146 double keepsAspect = kpTransformPreviewDialog::aspectScale ( 0147 maxNewWidth, maxNewHeight, 0148 m_filePixmap->width (), m_filePixmap->height ()); 0149 #if DEBUG_KP_DOCUMENT_SAVE_OPTIONS_WIDGET 0150 qCDebug(kpLogDialogs) << "\tmaxNewWidth=" << maxNewWidth 0151 << " maxNewHeight=" << maxNewHeight 0152 << " keepsAspect=" << keepsAspect; 0153 #endif 0154 0155 const int newWidth = kpTransformPreviewDialog::scaleDimension ( 0156 m_filePixmap->width (), 0157 keepsAspect, 0158 1, 0159 maxNewWidth); 0160 const int newHeight = kpTransformPreviewDialog::scaleDimension ( 0161 m_filePixmap->height (), 0162 keepsAspect, 0163 1, 0164 maxNewHeight); 0165 #if DEBUG_KP_DOCUMENT_SAVE_OPTIONS_WIDGET 0166 qCDebug(kpLogDialogs) << "\tnewWidth=" << newWidth 0167 << " newHeight=" << newHeight; 0168 #endif 0169 0170 QImage transformedPixmap = 0171 kpPixmapFX::scale (*m_filePixmap, 0172 newWidth, newHeight); 0173 0174 0175 QImage labelPixmap (m_filePixmapLabel->width (), 0176 m_filePixmapLabel->height (), QImage::Format_ARGB32_Premultiplied); 0177 labelPixmap.fill(QColor(Qt::transparent).rgba()); 0178 kpPixmapFX::setPixmapAt (&labelPixmap, 0179 (labelPixmap.width () - transformedPixmap.width ()) / 2, 0180 (labelPixmap.height () - transformedPixmap.height ()) / 2, 0181 transformedPixmap); 0182 0183 m_filePixmapLabel->setPixmap( 0184 QPixmap::fromImage(std::move(labelPixmap))); 0185 } 0186 else 0187 { 0188 m_filePixmapLabel->setPixmap (QPixmap ()); 0189 } 0190 } 0191 0192 0193 // protected virtual [base QWidget] 0194 void kpDocumentSaveOptionsPreviewDialog::closeEvent (QCloseEvent *e) 0195 { 0196 #if DEBUG_KP_DOCUMENT_SAVE_OPTIONS_WIDGET 0197 qCDebug(kpLogDialogs) << "kpDocumentSaveOptionsPreviewDialog::closeEvent()"; 0198 #endif 0199 0200 QWidget::closeEvent (e); 0201 0202 Q_EMIT finished (); 0203 } 0204 0205 // protected virtual [base QWidget] 0206 void kpDocumentSaveOptionsPreviewDialog::moveEvent (QMoveEvent *e) 0207 { 0208 #if DEBUG_KP_DOCUMENT_SAVE_OPTIONS_WIDGET 0209 qCDebug(kpLogDialogs) << "kpDocumentSaveOptionsPreviewDialog::moveEvent()"; 0210 #endif 0211 0212 QWidget::moveEvent (e); 0213 0214 Q_EMIT moved (); 0215 } 0216 0217 // protected virtual [base QWidget] 0218 void kpDocumentSaveOptionsPreviewDialog::resizeEvent (QResizeEvent *e) 0219 { 0220 #if DEBUG_KP_DOCUMENT_SAVE_OPTIONS_WIDGET 0221 qCDebug(kpLogDialogs) << "kpDocumentSaveOptionsPreviewDialog::resizeEvent()"; 0222 #endif 0223 0224 QWidget::resizeEvent (e); 0225 0226 Q_EMIT resized (); 0227 } 0228 0229 #include "moc_kpDocumentSaveOptionsPreviewDialog.cpp"