[1f4adec] | 1 | /* |
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| 2 | |
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| 3 | Copyright 2013 Alexander Volkov |
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| 4 | Copyright 2013 Adam Reichold |
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| 5 | |
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| 6 | This file is part of qpdfview. |
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| 7 | |
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| 8 | qpdfview is free software: you can redistribute it and/or modify |
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| 9 | it under the terms of the GNU General Public License as published by |
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| 10 | the Free Software Foundation, either version 2 of the License, or |
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| 11 | (at your option) any later version. |
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| 12 | |
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| 13 | qpdfview is distributed in the hope that it will be useful, |
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | GNU General Public License for more details. |
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| 17 | |
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| 18 | You should have received a copy of the GNU General Public License |
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| 19 | along with qpdfview. If not, see <http://www.gnu.org/licenses/>. |
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| 20 | |
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| 21 | */ |
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| 22 | |
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| 23 | #include "psmodel.h" |
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| 24 | |
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| 25 | #include <QFile> |
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| 26 | #include <QFormLayout> |
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| 27 | #include <qmath.h> |
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| 28 | #include <QSettings> |
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| 29 | #include <QSpinBox> |
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| 30 | |
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| 31 | #include <libspectre/spectre-document.h> |
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| 32 | |
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| 33 | namespace |
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| 34 | { |
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| 35 | |
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| 36 | using namespace qpdfview; |
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| 37 | using namespace qpdfview::Model; |
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| 38 | |
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| 39 | inline void appendRow(QStandardItemModel* model, const QString& key, const QString& value) |
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| 40 | { |
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| 41 | model->appendRow(QList< QStandardItem* >() << new QStandardItem(key) << new QStandardItem(value)); |
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| 42 | } |
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| 43 | |
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| 44 | namespace Defaults |
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| 45 | { |
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| 46 | |
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| 47 | const int graphicsAntialiasBits = 4; |
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| 48 | const int textAntialiasBits = 2; |
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| 49 | |
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| 50 | } // Defaults |
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| 51 | |
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| 52 | } // anonymous |
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| 53 | |
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| 54 | namespace qpdfview |
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| 55 | { |
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| 56 | |
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| 57 | namespace Model |
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| 58 | { |
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| 59 | |
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| 60 | PsPage::PsPage(QMutex* mutex, SpectrePage* page, SpectreRenderContext* renderContext) : |
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| 61 | m_mutex(mutex), |
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| 62 | m_page(page), |
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| 63 | m_renderContext(renderContext) |
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| 64 | { |
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| 65 | } |
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| 66 | |
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| 67 | PsPage::~PsPage() |
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| 68 | { |
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| 69 | spectre_page_free(m_page); |
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| 70 | m_page = 0; |
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| 71 | } |
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| 72 | |
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| 73 | QSizeF PsPage::size() const |
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| 74 | { |
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| 75 | QMutexLocker mutexLocker(m_mutex); |
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| 76 | |
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| 77 | int w; |
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| 78 | int h; |
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| 79 | |
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| 80 | spectre_page_get_size(m_page, &w, &h); |
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| 81 | |
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| 82 | return QSizeF(w, h); |
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| 83 | } |
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| 84 | |
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| 85 | QImage PsPage::render(qreal horizontalResolution, qreal verticalResolution, Rotation rotation, const QRect& boundingRect) const |
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| 86 | { |
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| 87 | QMutexLocker mutexLocker(m_mutex); |
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| 88 | |
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| 89 | double xscale; |
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| 90 | double yscale; |
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| 91 | |
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| 92 | switch(rotation) |
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| 93 | { |
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| 94 | default: |
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| 95 | case RotateBy0: |
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| 96 | case RotateBy180: |
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| 97 | xscale = horizontalResolution / 72.0; |
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| 98 | yscale = verticalResolution / 72.0; |
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| 99 | break; |
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| 100 | case RotateBy90: |
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| 101 | case RotateBy270: |
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| 102 | xscale = verticalResolution / 72.0; |
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| 103 | yscale = horizontalResolution / 72.0; |
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| 104 | break; |
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| 105 | } |
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| 106 | |
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| 107 | spectre_render_context_set_scale(m_renderContext, xscale, yscale); |
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| 108 | |
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| 109 | switch(rotation) |
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| 110 | { |
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| 111 | default: |
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| 112 | case RotateBy0: |
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| 113 | spectre_render_context_set_rotation(m_renderContext, 0); |
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| 114 | break; |
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| 115 | case RotateBy90: |
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| 116 | spectre_render_context_set_rotation(m_renderContext, 90); |
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| 117 | break; |
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| 118 | case RotateBy180: |
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| 119 | spectre_render_context_set_rotation(m_renderContext, 180); |
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| 120 | break; |
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| 121 | case RotateBy270: |
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| 122 | spectre_render_context_set_rotation(m_renderContext, 270); |
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| 123 | break; |
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| 124 | } |
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| 125 | |
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| 126 | int w; |
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| 127 | int h; |
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| 128 | |
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| 129 | spectre_page_get_size(m_page, &w, &h); |
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| 130 | |
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| 131 | w = qRound(w * xscale); |
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| 132 | h = qRound(h * yscale); |
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| 133 | |
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| 134 | if(rotation == RotateBy90 || rotation == RotateBy270) |
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| 135 | { |
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| 136 | qSwap(w, h); |
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| 137 | } |
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| 138 | |
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| 139 | unsigned char* pageData = 0; |
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| 140 | int rowLength = 0; |
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| 141 | |
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| 142 | spectre_page_render(m_page, m_renderContext, &pageData, &rowLength); |
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| 143 | |
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| 144 | if (spectre_page_status(m_page) != SPECTRE_STATUS_SUCCESS) |
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| 145 | { |
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| 146 | free(pageData); |
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| 147 | pageData = 0; |
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| 148 | |
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| 149 | return QImage(); |
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| 150 | } |
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| 151 | |
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| 152 | QImage auxiliaryImage(pageData, rowLength / 4, h, QImage::Format_RGB32); |
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| 153 | QImage image(boundingRect.isNull() ? auxiliaryImage.copy(0, 0, w, h) : auxiliaryImage.copy(boundingRect)); |
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| 154 | |
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| 155 | free(pageData); |
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| 156 | pageData = 0; |
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| 157 | |
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| 158 | return image; |
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| 159 | } |
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| 160 | |
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| 161 | PsDocument::PsDocument(SpectreDocument* document, SpectreRenderContext* renderContext) : |
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| 162 | m_mutex(), |
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| 163 | m_document(document), |
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| 164 | m_renderContext(renderContext) |
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| 165 | { |
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| 166 | } |
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| 167 | |
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| 168 | PsDocument::~PsDocument() |
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| 169 | { |
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| 170 | spectre_render_context_free(m_renderContext); |
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| 171 | m_renderContext = 0; |
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| 172 | |
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| 173 | spectre_document_free(m_document); |
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| 174 | m_document = 0; |
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| 175 | } |
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| 176 | |
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| 177 | int PsDocument::numberOfPages() const |
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| 178 | { |
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| 179 | QMutexLocker mutexLocker(&m_mutex); |
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| 180 | |
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| 181 | return spectre_document_get_n_pages(m_document); |
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| 182 | } |
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| 183 | |
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| 184 | Page* PsDocument::page(int index) const |
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| 185 | { |
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| 186 | QMutexLocker mutexLocker(&m_mutex); |
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| 187 | |
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| 188 | SpectrePage* page = spectre_document_get_page(m_document, index); |
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| 189 | |
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| 190 | return page != 0 ? new PsPage(&m_mutex, page, m_renderContext) : 0; |
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| 191 | } |
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| 192 | |
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| 193 | QStringList PsDocument::saveFilter() const |
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| 194 | { |
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| 195 | QMutexLocker mutexLocker(&m_mutex); |
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| 196 | |
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| 197 | if(spectre_document_is_eps(m_document)) |
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| 198 | { |
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| 199 | return QStringList() << QLatin1String("Encapsulated PostScript (*.eps)"); |
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| 200 | } |
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| 201 | else |
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| 202 | { |
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| 203 | return QStringList() << QLatin1String("PostScript (*.ps)"); |
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| 204 | } |
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| 205 | } |
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| 206 | |
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| 207 | bool PsDocument::canSave() const |
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| 208 | { |
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| 209 | return true; |
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| 210 | } |
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| 211 | |
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| 212 | bool PsDocument::save(const QString& filePath, bool withChanges) const |
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| 213 | { |
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| 214 | Q_UNUSED(withChanges) |
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| 215 | |
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| 216 | QMutexLocker mutexLocker(&m_mutex); |
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| 217 | |
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| 218 | spectre_document_save(m_document, QFile::encodeName(filePath)); |
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| 219 | |
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| 220 | return spectre_document_status(m_document) == SPECTRE_STATUS_SUCCESS; |
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| 221 | } |
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| 222 | |
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| 223 | bool PsDocument::canBePrintedUsingCUPS() const |
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| 224 | { |
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| 225 | return true; |
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| 226 | } |
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| 227 | |
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| 228 | void PsDocument::loadProperties(QStandardItemModel* propertiesModel) const |
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| 229 | { |
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| 230 | Document::loadProperties(propertiesModel); |
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| 231 | |
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| 232 | QMutexLocker mutexLocker(&m_mutex); |
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| 233 | |
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| 234 | const QString title = QString::fromLocal8Bit(spectre_document_get_title(m_document)); |
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| 235 | const QString createdFor = QString::fromLocal8Bit(spectre_document_get_for(m_document)); |
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| 236 | const QString creator = QString::fromLocal8Bit(spectre_document_get_creator(m_document)); |
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| 237 | const QString creationDate = QString::fromLocal8Bit(spectre_document_get_creation_date(m_document)); |
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| 238 | const QString format = QString::fromLocal8Bit(spectre_document_get_format(m_document)); |
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| 239 | const QString languageLevel = QString::number(spectre_document_get_language_level(m_document)); |
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| 240 | |
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| 241 | appendRow(propertiesModel, tr("Title"), title); |
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| 242 | appendRow(propertiesModel, tr("Created for"), createdFor); |
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| 243 | appendRow(propertiesModel, tr("Creator"), creator); |
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| 244 | appendRow(propertiesModel, tr("Creation date"), creationDate); |
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| 245 | appendRow(propertiesModel, tr("Format"), format); |
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| 246 | appendRow(propertiesModel, tr("Language level"), languageLevel); |
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| 247 | } |
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| 248 | |
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| 249 | } // Model |
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| 250 | |
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| 251 | PsSettingsWidget::PsSettingsWidget(QSettings* settings, QWidget* parent) : SettingsWidget(parent), |
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| 252 | m_settings(settings) |
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| 253 | { |
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| 254 | m_layout = new QFormLayout(this); |
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| 255 | |
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| 256 | // graphics antialias bits |
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| 257 | |
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| 258 | m_graphicsAntialiasBitsSpinBox = new QSpinBox(this); |
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| 259 | m_graphicsAntialiasBitsSpinBox->setRange(1, 4); |
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| 260 | m_graphicsAntialiasBitsSpinBox->setValue(m_settings->value("graphicsAntialiasBits", Defaults::graphicsAntialiasBits).toInt()); |
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| 261 | |
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| 262 | m_layout->addRow(tr("Graphics antialias bits:"), m_graphicsAntialiasBitsSpinBox); |
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| 263 | |
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| 264 | // text antialias bits |
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| 265 | |
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| 266 | m_textAntialiasBitsSpinBox = new QSpinBox(this); |
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| 267 | m_textAntialiasBitsSpinBox->setRange(1, 2); |
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| 268 | m_textAntialiasBitsSpinBox->setValue(m_settings->value("textAntialiasBits", Defaults::textAntialiasBits).toInt()); |
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| 269 | |
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| 270 | m_layout->addRow(tr("Text antialias bits:"), m_textAntialiasBitsSpinBox); |
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| 271 | } |
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| 272 | |
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| 273 | void PsSettingsWidget::accept() |
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| 274 | { |
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| 275 | m_settings->setValue("graphicsAntialiasBits", m_graphicsAntialiasBitsSpinBox->value()); |
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| 276 | m_settings->setValue("textAntialiasBits", m_textAntialiasBitsSpinBox->value()); |
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| 277 | } |
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| 278 | |
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| 279 | void PsSettingsWidget::reset() |
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| 280 | { |
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| 281 | m_graphicsAntialiasBitsSpinBox->setValue(Defaults::graphicsAntialiasBits); |
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| 282 | m_textAntialiasBitsSpinBox->setValue(Defaults::textAntialiasBits); |
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| 283 | } |
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| 284 | |
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| 285 | PsPlugin::PsPlugin(QObject* parent) : QObject(parent) |
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| 286 | { |
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| 287 | setObjectName("PsPlugin"); |
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| 288 | |
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| 289 | // m_settings = new QSettings("qpdfview", "ps-plugin", this); |
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| 290 | m_settings = new QSettings("terepaima", "ps-plugin", this); |
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| 291 | |
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| 292 | } |
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| 293 | |
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| 294 | Model::Document* PsPlugin::loadDocument(const QString& filePath) const |
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| 295 | { |
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| 296 | SpectreDocument* document = spectre_document_new(); |
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| 297 | |
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| 298 | spectre_document_load(document, QFile::encodeName(filePath)); |
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| 299 | |
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| 300 | if (spectre_document_status(document) != SPECTRE_STATUS_SUCCESS) |
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| 301 | { |
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| 302 | spectre_document_free(document); |
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| 303 | |
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| 304 | return 0; |
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| 305 | } |
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| 306 | |
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| 307 | SpectreRenderContext* renderContext = spectre_render_context_new(); |
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| 308 | |
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| 309 | spectre_render_context_set_antialias_bits(renderContext, |
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| 310 | m_settings->value("graphicsAntialiasBits", Defaults::graphicsAntialiasBits).toInt(), |
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| 311 | m_settings->value("textAntialiasBits", Defaults::textAntialiasBits).toInt()); |
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| 312 | |
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| 313 | return new Model::PsDocument(document, renderContext); |
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| 314 | } |
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| 315 | |
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| 316 | SettingsWidget* PsPlugin::createSettingsWidget(QWidget* parent) const |
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| 317 | { |
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| 318 | return new PsSettingsWidget(m_settings, parent); |
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| 319 | } |
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| 320 | |
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| 321 | } // qpdfview |
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| 322 | |
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| 323 | #if QT_VERSION < QT_VERSION_CHECK(5,0,0) |
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| 324 | |
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| 325 | Q_EXPORT_PLUGIN2(qpdfview_ps, qpdfview::PsPlugin) |
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| 326 | |
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| 327 | #endif // QT_VERSION |
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