kpimagepage.cpp

/*
 *  This file is part of the KDE libraries
 *  Copyright (c) 2001 Michael Goffioul <tdeprint@swing.be>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License version 2 as published by the Free Software Foundation.
 *
 *  This library 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
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 **/
 
#include "kpimagepage.h"
#include "imageposition.h"
#include "imagepreview.h"
#include "driver.h"
 
#include <tqcombobox.h>
#include <tqbuttongroup.h>
#include <tqradiobutton.h>
#include <tqgroupbox.h>
#include <tqpushbutton.h>
#include <tqapplication.h>
#include <tqimage.h>
#include <tqlabel.h>
#include <tqlayout.h>
#include <tqwhatsthis.h>
#include <tdelocale.h>
#include <knuminput.h>
#include <kseparator.h>
#include <kstandarddirs.h>
 
KPImagePage::KPImagePage(DrMain *driver, TQWidget *parent, const char *name)
: KPrintDialogPage(parent, name)
{
    //WhatsThis strings.... (added by pfeifle@kde.org)
    TQString whatsThisBrightnessImagePage = i18n( " <qt> "
            " <p><b>Brightness:</b> Slider to control the brightness value of all colors used.</p>"
            " <p> The brightness value can range from 0 to 200. Values greater than 100 will "
            " lighten the print. Values less than 100 will darken the print. </p> "
            " <br> "
            " <hr> "
            " <p><em><b>Additional hint for power users:</b> This TDEPrint GUI element matches "
            " with the CUPS commandline job option parameter:</em> "
            " <pre>"
            "    -o brightness=...      # use range from \"0\" to \"200\" "
            " </pre> "
            " </p> "
            " </qt>" );
 
    TQString whatsThisHueImagePage = i18n( " <qt> "
            " <p><b>Hue (Tint):</b> Slider to control the hue value for color rotation.</p>"
            " <p> The hue value is a number from -360 to 360 and represents the color hue rotation. "
            " The following table summarizes the change you will see for the base colors: "
            " <center> "
            " <table border=\"1\" width=\"70%\"> " 
            " <tr><th><b>Original</b></th> <th><b>hue=-45</b></th> <th><b>hue=45</b></th>   </tr> "
            " <tr><td>Red</td>             <td>Purple</td>         <td>Yellow-orange</td>   </tr> "
            " <tr><td>Green</td>           <td>Yellow-green</td>   <td>Blue-green</td>      </tr> "
            " <tr><td>Yellow</td>          <td>Orange</td>         <td>Green-yellow</td>    </tr> "
            " <tr><td>Blue</td>            <td>Sky-blue</td>       <td>Purple</td>          </tr> "
            " <tr><td>Magenta</td>         <td>Indigo</td>         <td>Crimson</td>         </tr> "
            " <tr><td>Cyan</td>            <td>Blue-green</td>     <td>Light-navy-blue</td> </tr> "
            " </table> "
            " </center> "
            " <br> "
            " <hr> "
            " <p><em><b>Additional hint for power users:</b> This TDEPrint GUI element matches "
            " with the CUPS commandline job option parameter:</em> "
            " <pre>"
            "    -o hue=...     # use range from \"-360\" to \"360\" "
            " </pre>"
            " </p> "
            " </qt>" );
 
    TQString whatsThisSaturationImagePage = i18n( " <qt> "
            " <p><b>Saturation:</b> Slider to control the saturation value for all colors used.</p>"
            " <p> The saturation value adjusts the saturation of the colors in an image, similar to "
            " the color knob on your television. The color saturation value.can range from 0 to 200."
            " On inkjet printers, a higher saturation value uses more ink. On laserjet printers, a "
            " higher saturation uses more toner. "
            " A color saturation of 0 produces a black-and-white print, while a value of 200 will "
            " make the colors extremely intense. </p>"
            " <br> "
            " <hr> "
            " <p><em><b>Additional hint for power users:</b> This TDEPrint GUI element matches "
            " with the CUPS commandline job option parameter:</em> "
            " <pre>"
            "    -o saturation=...      # use range from \"0\" to \"200\" "
            " </pre>"
            " </p> "
            " </qt>" );
 
    TQString whatsThisGammaImagePage = i18n( " <qt> "
            " <p><b>Gamma:</b> Slider to control the gamma value for color correction.</p>"
            " <p> The gamma value can range from 1 to 3000. "
            " A gamma values greater than 1000 lightens the print. A gamma value less than 1000 "
            " darken the print. The default gamma is 1000. </p>"
            " <p><b>Note:</b></p> the gamma value adjustment is not visible in the thumbnail "
            " preview. </p> "
            " <br> "
            " <hr> "
            " <p><em><b>Additional hint for power users:</b> This TDEPrint GUI element matches "
            " with the CUPS commandline job option parameter:</em> "
            " <pre>"
            "    -o gamma=...      # use range from \"1\" to \"3000\" "
            " </pre>"
            " </p> "
            " </qt>" );
 
    TQString whatsThisImagePage = i18n( " <qt> "
            " <p><b>Image Printing Options</b></p> "
            " <p>All options controlled on this page only apply to printing images. "
            " Most image file formats are supported. To name a few: JPEG, TIFF, PNG, GIF, "
            " PNM (PBM/PGM/PNM/PPM), Sun Raster, SGI RGB, Windows BMP."
            " Options to influence color output of image printouts are: "
            " <ul> "
            " <li> Brightness  </li>"
            " <li> Hue         </li>"
            " <li> Saturation  </li>"
            " <li> Gamma       </li>"
            " </ul> "
            " <p>For a more detailed explanation about Brightness, Hue, Saturation and Gamma settings, please "
            " look at the 'WhatsThis' items provided for these controls. "
            " </p> "
            " </p> "
            " </qt>" );
 
    TQString whatsThisColorationPreviewImagePage = i18n( " <qt> "
            " <p><b>Coloration Preview Thumbnail</b></p> "
            " <p>The coloration preview thumbnail indicates change of image coloration by different settings. "
            " Options to influence output are: "
            " <ul> "
            " <li> Brightness  </li>"
            " <li> Hue (Tint)  </li>"
            " <li> Saturation  </li>"
            " <li> Gamma       </li>"
            " </ul> "
            " </p> "
            " <p>For a more detailed explanation about Brightness, Hue, Saturation and Gamma settings, please "
            " look at the 'WhatsThis' items provided for these controls. "
            " </p> "
            " </qt>" );
 
    TQString whatsThisSizeImagePage = i18n( " <qt> "
            " <p><b>Image Size:</b> Dropdown menu to control the image size on the printed paper. Dropdown "
            " works in conjunction with slider below. Dropdown options are:.</p>"
            " <ul> "
            " <li> <b>Natural Image Size:</b> Image prints in its natural image size. If it does not fit onto "
            " one sheet, the printout will be spread across multiple sheets. Note, that the slider is disabled "
            " when selecting 'natural image size' in the dropdown menu. </li>"
            " <li> <b>Resolution (ppi):</b> The resolution value slider covers a number range from 1 to 1200. "
            " It specifies the resolution of the image in Pixels Per Inch (PPI). An image that is 3000x2400 pixels "
            " will print 10x8 inches at 300 pixels per inch, for example, but 5x4 inches at 600 pixels per inch."
            " If the specified resolution makes the image larger than the page, multiple pages will be printed. "
            " Resolution defaults to 72 ppi. "
            " </li>"
            " <li> <b>% of Page Size:</b> The percent value slider covers numbers from 1 to 800. It specifies the size "
            " in relation to the page (not the image). A scaling of 100 percent will fill the page as completely "
            " as the image aspect ratio allows (doing auto-rotation of the image as needed). "
            " A scaling of more than 100 will print the image across multiple "
            " sheets. A scaling of 200 percent will print on up to 4 pages. </li>"
            " Scaling in % of page size defaults to 100 %. "
            " <li> <b>% of Natural Image Size:</b> The percent value slider moves from 1 to 800. It specifies "
            " the printout size in relation "
            " to the natural image size. A scaling of 100 percent will print the image at its natural size, while a "
            " scaling of 50 percent will print the image at half its natural size. If the specified scaling makes "
            " the image larger than the page, multiple pages will be printed. "
            " Scaling in % of natural image size defaults to 100 %. "
            " </ul> "
            " <br> "
            " <hr> "
            " <p><em><b>Additional hint for power users:</b> This TDEPrint GUI element matches "
            " with the CUPS commandline job option parameter:</em> "
            " <pre>"
            "     -o natural-scaling=...     # range in  %  is 1....800 "
            " <br> "
            "    -o scaling=...             # range in  %  is 1....800 "
            " <br> "
            "    -o ppi=...                 # range in ppi is 1...1200 "
            " </pre>"
            " </p> "
            " </qt>" );
 
    TQString whatsThisPreviewPositionImagePage = i18n( " <qt> "
            " <p><b>Position Preview Thumbnail</b></p> "
            " <p>This position preview thumbnail indicates the position of the image on the paper sheet. "
            " <p>Click on horizontal and vertical radio buttons to move image alignment on paper around. Options are: "
            " <ul> "
            " <li> center      </li>"
            " <li> top         </li>"
            " <li> top-left    </li>"
            " <li> left        </li>"
            " <li> bottom-left </li>"
            " <li> bottom      </li>"
            " <li> bottom-right</li>"
            " <li> right       </li>"
            " <li> top-right   </li>"
            " </ul> "
            " </p> "
            " </qt>" );
 
    TQString whatsThisResetButtonImagePage = i18n( " <qt> "
            " <p><b>Reset to Default Values</b> </p> "
            " <p> Reset all coloration settings to default values. Default values are: "
            " <ul> "
            " <li> Brightness: 100 </li>"
            " <li> Hue (Tint).   0 </li>"
            " <li> Saturation: 100 </li>"
            " <li> Gamma:     1000 </li>"
            " </ul> "
            " </p> "
            " </qt>" );
 
    TQString whatsThisPositionImagePage = i18n( " <qt> "
            " <p><b>Image Positioning:</b></p> "
            " <p>Select a pair of radiobuttons to "
            " move image to the position you want on the paper printout. Default "
            " is 'center'. </p> "
            " <br> "
            " <hr> "
            " <p><em><b>Additional hint for power users:</b> This TDEPrint GUI element matches "
            " with the CUPS commandline job option parameter:</em> "
            " <pre>"
            "    -o position=...       # examples: \"top-left\" or \"bottom\" "
            " </pre>"
            " </p> "
            " </qt>" );
 
    setTitle(i18n("Image"));
 
    TQGroupBox  *colorbox = new TQGroupBox(0, TQt::Vertical, i18n("Color Settings"), this);
      TQWhatsThis::add(this, whatsThisImagePage);
    TQGroupBox  *sizebox = new TQGroupBox(0, TQt::Vertical, i18n("Image Size"), this);
      TQWhatsThis::add(sizebox, whatsThisSizeImagePage);
    TQGroupBox  *positionbox = new TQGroupBox(0, TQt::Vertical, i18n("Image Position"), this);
      TQWhatsThis::add(positionbox, whatsThisPositionImagePage);
 
    m_brightness = new KIntNumInput(100, colorbox);
    m_brightness->setLabel(i18n("&Brightness:"));
    m_brightness->setRange(0, 200, 20, true);
      TQWhatsThis::add(m_brightness, whatsThisBrightnessImagePage);
 
    m_hue = new KIntNumInput(m_brightness, 0, colorbox);
    m_hue->setLabel(i18n("&Hue (Color rotation):"));
    m_hue->setRange(-360, 360, 36, true);
      TQWhatsThis::add(m_hue, whatsThisHueImagePage);
 
    m_saturation = new KIntNumInput(m_brightness, 100, colorbox);
    m_saturation->setLabel(i18n("&Saturation:"));
    m_saturation->setRange(0, 200, 20, true);
      TQWhatsThis::add(m_saturation, whatsThisSaturationImagePage);
 
    m_gamma = new KIntNumInput(m_saturation, 1000, colorbox);
    m_gamma->setLabel(i18n("&Gamma (Color correction):"));
    m_gamma->setRange(1, 3000, 100, true);
      TQWhatsThis::add(m_gamma, whatsThisGammaImagePage);
 
    connect(m_brightness, TQ_SIGNAL(valueChanged(int)), TQ_SLOT(slotImageSettingsChanged()));
    connect(m_hue, TQ_SIGNAL(valueChanged(int)), TQ_SLOT(slotImageSettingsChanged()));
    connect(m_saturation, TQ_SIGNAL(valueChanged(int)), TQ_SLOT(slotImageSettingsChanged()));
    //connect(m_gamma, TQ_SIGNAL(valueChanged(int)), TQ_SLOT(slotImageSettingsChanged()));
 
    m_preview = new ImagePreview(colorbox);
    bool    useColor = (driver ? driver->get("colordevice") == "1" : true);
    m_preview->setBlackAndWhite(!useColor);
      TQWhatsThis::add(m_preview, whatsThisColorationPreviewImagePage);
 
    m_hue->setEnabled(useColor);
    m_saturation->setEnabled(useColor);
    TQImage img(locate("data", "tdeprint/preview.png"));
    m_preview->setImage(img);
 
    KSeparator  *sep = new KSeparator(TQt::Horizontal, colorbox);
 
    TQPushButton    *defbtn = new TQPushButton(i18n("&Default Settings"), colorbox);
      TQWhatsThis::add(defbtn, whatsThisResetButtonImagePage);
    connect(defbtn, TQ_SIGNAL(clicked()), TQ_SLOT(slotDefaultClicked()));
    slotDefaultClicked();
 
    m_sizetype = new TQComboBox(sizebox);
    m_sizetype->insertItem(i18n("Natural Image Size"));
    m_sizetype->insertItem(i18n("Resolution (ppi)"));
    // xgettext:no-c-format
    m_sizetype->insertItem(i18n("% of Page"));
    // xgettext:no-c-format
    m_sizetype->insertItem(i18n("% of Natural Image Size"));
 
    m_size = new KIntNumInput(sizebox);
    m_size->setRange(1, 1200, 20, true);
    m_size->setValue(72);
 
    connect(m_sizetype, TQ_SIGNAL(activated(int)), TQ_SLOT(slotSizeTypeChanged(int)));
    m_sizetype->setCurrentItem(0);
    slotSizeTypeChanged(0);
 
    TQLabel *lab = new TQLabel(i18n("&Image size type:"), sizebox);
    lab->setBuddy(m_sizetype);
 
    m_position = new ImagePosition(positionbox);
      TQWhatsThis::add(m_position, whatsThisPreviewPositionImagePage);
 
    TQRadioButton   *bottom = new TQRadioButton(positionbox);
    TQRadioButton   *top = new TQRadioButton(positionbox);
    TQRadioButton   *vcenter = new TQRadioButton(positionbox);
    TQRadioButton   *left = new TQRadioButton(positionbox);
    TQRadioButton   *right = new TQRadioButton(positionbox);
    TQRadioButton   *hcenter = new TQRadioButton(positionbox);
    TQSize  sz = bottom->sizeHint();
    bottom->setFixedSize(sz);
    vcenter->setFixedSize(sz);
    top->setFixedSize(sz);
    left->setFixedSize(sz);
    hcenter->setFixedSize(sz);
    right->setFixedSize(sz);
 
    m_vertgrp = new TQButtonGroup(positionbox);
    m_vertgrp->hide();
 
    m_horizgrp = new TQButtonGroup(positionbox);
    m_horizgrp->hide();
 
    m_vertgrp->insert(top, 0);
    m_vertgrp->insert(vcenter, 1);
    m_vertgrp->insert(bottom, 2);
    if ( TQApplication::reverseLayout() )
    {
        m_horizgrp->insert(left, 2);
        m_horizgrp->insert(hcenter, 1);
        m_horizgrp->insert(right, 0);
    }
    else
    {
        m_horizgrp->insert(left, 0);
        m_horizgrp->insert(hcenter, 1);
        m_horizgrp->insert(right, 2);
    }
    connect(m_vertgrp, TQ_SIGNAL(clicked(int)), TQ_SLOT(slotPositionChanged()));
    connect(m_horizgrp, TQ_SIGNAL(clicked(int)), TQ_SLOT(slotPositionChanged()));
    m_vertgrp->setButton(1);
    m_horizgrp->setButton(1);
    slotPositionChanged();
 
    TQGridLayout    *l0 = new TQGridLayout(this, 2, 2, 0, 10);
    l0->addMultiCellWidget(colorbox, 0, 0, 0, 1);
    l0->addWidget(sizebox, 1, 0);
    l0->addWidget(positionbox, 1, 1);
    l0->setColStretch(0, 1);
    TQGridLayout    *l1 = new TQGridLayout(colorbox->layout(), 5, 2, 10);
    l1->addWidget(m_brightness, 0, 0);
    l1->addWidget(m_hue, 1, 0);
    l1->addWidget(m_saturation, 2, 0);
    l1->addWidget(sep, 3, 0);
    l1->addWidget(m_gamma, 4, 0);
    l1->addMultiCellWidget(m_preview, 0, 3, 1, 1);
    l1->addWidget(defbtn, 4, 1);
    TQVBoxLayout    *l2 = new TQVBoxLayout(sizebox->layout(), 3);
    l2->addStretch(1);
    l2->addWidget(lab);
    l2->addWidget(m_sizetype);
    l2->addSpacing(10);
    l2->addWidget(m_size);
    l2->addStretch(1);
    TQGridLayout    *l3 = new TQGridLayout(positionbox->layout(), 2, 2, 10);
    TQHBoxLayout    *l4 = new TQHBoxLayout(0, 0, 10);
    TQVBoxLayout    *l5 = new TQVBoxLayout(0, 0, 10);
    l3->addLayout(l4, 0, 1);
    l3->addLayout(l5, 1, 0);
    l3->addWidget(m_position, 1, 1);
    l4->addWidget(left, TQt::AlignLeft);
    l4->addWidget(hcenter, TQt::AlignCenter);
    l4->addWidget(right, TQt::AlignRight);
    l5->addWidget(top, TQt::AlignTop);
    l5->addWidget(vcenter, TQt::AlignVCenter);
    l5->addWidget(bottom, TQt::AlignBottom);
}
 
KPImagePage::~KPImagePage()
{
}
 
void KPImagePage::setOptions(const TQMap<TQString,TQString>& opts)
{
    TQString    value;
    if (!(value=opts["brightness"]).isEmpty())
        m_brightness->setValue(value.toInt());
    if (!(value=opts["hue"]).isEmpty())
        m_hue->setValue(value.toInt());
    if (!(value=opts["saturation"]).isEmpty())
        m_saturation->setValue(value.toInt());
    if (!(value=opts["gamma"]).isEmpty())
        m_gamma->setValue(value.toInt());
 
    int type = 0;
    int ival(0);
    if ((ival = opts["ppi"].toInt()) != 0)
        type = 1;
    else if ((ival = opts["scaling"].toInt()) != 0)
        type = 2;
    else if (!opts["natural-scaling"].isEmpty() && (ival = opts["natural-scaling"].toInt()) != 1)
        type = 3;
    m_sizetype->setCurrentItem(type);
    slotSizeTypeChanged(type);
    if (type != 0)
        m_size->setValue(ival);
 
    if (!(value=opts["position"]).isEmpty())
    {
        m_position->setPosition(value.latin1());
        int pos = m_position->position();
        m_vertgrp->setButton(pos/3);
        m_horizgrp->setButton(pos%3);
    }
}
 
void KPImagePage::getOptions(TQMap<TQString,TQString>& opts, bool incldef)
{
    if (incldef || m_brightness->value() != 100)
        opts["brightness"] = TQString::number(m_brightness->value());
    if (m_hue->isEnabled())
    {
        if (incldef || m_hue->value() != 0)
            opts["hue"] = TQString::number(m_hue->value());
        if (incldef || m_saturation->value() != 100)
            opts["saturation"] = TQString::number(m_saturation->value());
    }
    if (incldef || m_gamma->value() != 1000)
        opts["gamma"] = TQString::number(m_gamma->value());
 
    TQString    name;
    if (incldef)
    {
        opts["ppi"] = "0";
        opts["scaling"] = "0";
        opts["natural-scaling"] = "1";
    }
    switch (m_sizetype->currentItem())
    {
        case 0: break;
        case 1: name = "ppi"; break;
        case 2: name = "scaling"; break;
        case 3: name = "natural-scaling"; break;
    }
    if (!name.isEmpty())
        opts[name] = TQString::number(m_size->value());
 
    if (incldef || m_position->position() != ImagePosition::Center)
        opts["position"] = m_position->positionString();
}
 
void KPImagePage::slotSizeTypeChanged(int t)
{
    m_size->setEnabled(t > 0);
    if (t > 0)
    {
        int minval, maxval, defval;
        if (t == 1)
        {
            minval = 1;
            maxval = 1200;
            defval = 72;
        }
        else
        {
            minval = 1;
            maxval = 800;
            defval = 100;
        }
        m_size->setRange(minval, maxval);
        m_size->setValue(defval);
    }
}
 
void KPImagePage::slotPositionChanged()
{
    int h = m_horizgrp->id(m_horizgrp->selected()), v = m_vertgrp->id(m_vertgrp->selected());
    m_position->setPosition(h, v);
}
 
void KPImagePage::slotImageSettingsChanged()
{
    int b = m_brightness->value(), h = m_hue->value(), s = m_saturation->value();
    //int g = m_gamma->value();
    int g = 1000;
    m_preview->setParameters(b, h, s, g);
}
 
void KPImagePage::slotDefaultClicked()
{
    m_brightness->setValue(100);
    m_hue->setValue(0);
    m_saturation->setValue(100);
    m_gamma->setValue(1000);
}
 
#include "kpimagepage.moc"