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Viewing changes to src/libdisplay/DisplayMacAqua.cpp

  • Committer: Bazaar Package Importer
  • Author(s): LaMont Jones
  • Date: 2004-08-24 07:14:00 UTC
  • mfrom: (1.1.1 upstream)
  • Revision ID: james.westby@ubuntu.com-20040824071400-2dr4qnjbjmm8z3ia
Tags: 1.0.6-1ubuntu1
Build-depend: libtiff4-dev

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src/libdisplay/DisplayMacAqua.cpp
 
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#include <cstdlib>
 
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#include <cstring>
 
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#include <fstream>
 
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#include <sstream>
 
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using namespace std;
 
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#include "keywords.h"
 
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#include "Options.h"
 
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#include "PlanetProperties.h"
 
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#include "xpUtil.h"
 
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#include "DisplayMacAqua.h"
 
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#include "libimage/Image.h"
 
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#include <Carbon/Carbon.h>
 
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extern "C" {
 
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    bool SetDesktopPictureFromCharString(const char *file);
 
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}
 
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DisplayMacAqua::DisplayMacAqua(const int tr) : DisplayBase(tr)
 
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{
 
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    fullWidth_ = static_cast<int> (CGDisplayPixelsWide(kCGDirectMainDisplay));
 
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    fullHeight_ = static_cast<int> (CGDisplayPixelsHigh(kCGDirectMainDisplay));
 
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    if (fullWidth_ == 0 || fullHeight_ == 0)
 
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        xpExit("Can't set Aqua display\n", __FILE__, __LINE__);
 
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    Options *options = Options::getInstance();
 
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    switch (options->DisplayMode())
 
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    {
 
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    case WINDOW:
 
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        xpWarn("-window option not supported for Aqua.\n", 
 
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               __FILE__, __LINE__);
 
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        // fall through
 
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    case ROOT:
 
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        if (options->GeometrySelected())
 
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        {
 
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            width_ = options->getWidth();
 
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            height_ = options->getHeight();
 
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        }
 
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        else
 
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        {
 
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            width_ = fullWidth_;
 
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            height_ = fullHeight_;
 
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        }
 
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        break;
 
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    }
 
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    if (!options->CenterSelected())
 
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    {
 
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        if (width_ % 2 == 0)
 
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            options->setCenterX(width_/2 - 0.5);
 
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        else
 
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            options->setCenterX(width_/2);
 
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        if (height_ % 2 == 0)
 
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            options->setCenterY(height_/2 - 0.5);
 
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        else
 
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            options->setCenterY(height_/2);
 
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    }
 
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    allocateRGBData();
 
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}
 
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DisplayMacAqua::~DisplayMacAqua()
 
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{
 
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}
 
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// This was pretty much written by trial and error once I found
 
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// DesktopPicture.m on developer.apple.com
 
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void 
 
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DisplayMacAqua::renderImage(PlanetProperties *planetProperties[])
 
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{
 
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    drawLabel(planetProperties);
 
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    // Setting the desktop picture doesn't seem to work if you give it
 
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    // the same filename over and over again.
 
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    char templateFile[16];
 
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    strncpy(templateFile, "Xplanet.XXXXXX", 16);
 
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    char *tmpFile = mktemp(templateFile);
 
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    ostringstream outputStream;
 
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    outputStream << TmpDir() << "/" << tmpFile << ".png";
 
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    Options *options = Options::getInstance();
 
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    if (options->GeometrySelected()) PlaceImageOnRoot();
 
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    Image i(fullWidth_, fullHeight_, rgb_data, alpha);
 
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    if (!i.Write(outputStream.str().c_str()))
 
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    {
 
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        ostringstream errStr;
 
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        errStr << "Can't create image file " << outputStream.str() << "\n";
 
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        xpExit(errStr.str(), __FILE__, __LINE__);
 
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    }
 
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    if (options->Verbosity() > 1)
 
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    {
 
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        ostringstream msg;
 
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        msg << "Created image file " << outputStream.str() << "\n";
 
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        xpMsg(msg.str(), __FILE__, __LINE__);
 
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    }
 
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    // This sometimes doesn't set the background correctly, but
 
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    // doesn't return false in those cases.  Hopefully the real API to
 
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    // set the desktop will be available soon.
 
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    sleep(1);
 
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    if (!SetDesktopPictureFromCharString(outputStream.str().c_str()))
 
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    {
 
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        ostringstream errStr;
 
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        errStr << "Failed to set desktop from " 
 
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               << outputStream.str() << "\n";
 
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        xpWarn(errStr.str(), __FILE__, __LINE__);
 
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    }
 
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    // I have no idea, but maybe the failure to set the desktop is
 
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    // because the Apple Event runs inside a thread or something.
 
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    // Sleep for a second before removing the temporary file to give
 
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    // it some time.
 
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    sleep(1);
 
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    if (!options->SaveDesktopFile())
 
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        unlinkFile(outputStream.str().c_str());
 
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}