#include "dimension.h"
#include "gettext.h"
#include "LColor.h"
+#include "lyx_main.h"
+#include "lyxrc.h"
#include "metricsinfo.h"
#include "frontends/font_metrics.h"
namespace support = lyx::support;
-bool RenderPreview::activated()
+LyXRC_PreviewStatus RenderPreview::status()
{
- return graphics::Previews::activated();
+ return graphics::Previews::status();
}
-RenderPreview::RenderPreview()
- : pimage_(0)
+RenderPreview::RenderPreview(InsetBase const * inset)
+ : parent_(inset)
{}
-RenderPreview::RenderPreview(RenderPreview const & other)
+RenderPreview::RenderPreview(RenderPreview const & other,
+ InsetBase const * inset)
: RenderBase(other),
boost::signals::trackable(),
snippet_(other.snippet_),
- pimage_(0)
+ parent_(inset)
{}
-auto_ptr<RenderBase> RenderPreview::clone() const
+auto_ptr<RenderBase> RenderPreview::clone(InsetBase const * inset) const
{
- return auto_ptr<RenderBase>(new RenderPreview(*this));
+ return auto_ptr<RenderBase>(new RenderPreview(*this, inset));
}
namespace {
+graphics::PreviewLoader & getPreviewLoader(Buffer const & buffer)
+{
+ graphics::Previews const & previews = graphics::Previews::get();
+ return previews.loader(buffer);
+}
+
+
string const statusMessage(BufferView const * bv, string const & snippet)
{
BOOST_ASSERT(bv && bv->buffer());
Buffer const & buffer = *bv->buffer();
- graphics::Previews const & previews = graphics::Previews::get();
- graphics::PreviewLoader const & loader = previews.loader(buffer);
+ graphics::PreviewLoader const & loader = getPreviewLoader(buffer);
graphics::PreviewLoader::Status const status = loader.status(snippet);
string message;
} // namespace anon
+graphics::PreviewImage const *
+RenderPreview::getPreviewImage(Buffer const & buffer) const
+{
+ graphics::PreviewLoader const & loader = getPreviewLoader(buffer);
+ return loader.preview(snippet_);
+}
+
+
void RenderPreview::metrics(MetricsInfo & mi, Dimension & dim) const
{
- if (previewReady()) {
- dim.asc = pimage_->ascent();
- dim.des = pimage_->descent();
- dim.wid = pimage_->width();
+ BOOST_ASSERT(mi.base.bv && mi.base.bv->buffer());
+
+ graphics::PreviewImage const * const pimage =
+ getPreviewImage(*mi.base.bv->buffer());
+
+ if (pimage) {
+ dim.asc = pimage->ascent();
+ dim.des = pimage->descent();
+ dim.wid = pimage->width();
} else {
dim.asc = 50;
dim.des = 0;
void RenderPreview::draw(PainterInfo & pi, int x, int y) const
{
- BOOST_ASSERT(pi.base.bv && pi.base.bv->buffer());
- Buffer const & buffer = *pi.base.bv->buffer();
- startLoading(buffer);
+ BOOST_ASSERT(pi.base.bv && pi.base.bv->buffer());
- if (previewReady()) {
+ graphics::PreviewImage const * const pimage =
+ getPreviewImage(*pi.base.bv->buffer());
+ graphics::Image const * const image = pimage ? pimage->image() : 0;
+
+ if (image) {
pi.pain.image(x, y - dim_.asc, dim_.wid, dim_.height(),
- *(pimage_->image()));
- return;
- }
+ *image);
- pi.pain.rectangle(x + InsetOld::TEXT_TO_INSET_OFFSET,
- y - dim_.asc,
- dim_.wid - 2 * InsetOld::TEXT_TO_INSET_OFFSET,
- dim_.asc + dim_.des,
- LColor::foreground);
-
- LyXFont font(pi.base.font);
- font.setFamily(LyXFont::SANS_FAMILY);
- font.setSize(LyXFont::SIZE_FOOTNOTE);
- pi.pain.text(x + InsetOld::TEXT_TO_INSET_OFFSET + 6,
- y - font_metrics::maxAscent(font) - 4,
- statusMessage(pi.base.bv, snippet_), font);
-}
+ } else {
+ int const offset = InsetOld::TEXT_TO_INSET_OFFSET;
+ pi.pain.rectangle(x + offset,
+ y - dim_.asc,
+ dim_.wid - 2 * offset,
+ dim_.asc + dim_.des,
+ LColor::foreground);
-boost::signals::connection RenderPreview::connect(slot_type const & slot)
-{
- return preview_ready_signal_.connect(slot);
+ LyXFont font(pi.base.font);
+ font.setFamily(LyXFont::SANS_FAMILY);
+ font.setSize(LyXFont::SIZE_FOOTNOTE);
+
+ pi.pain.text(x + offset + 6,
+ y - font_metrics::maxAscent(font) - 4,
+ statusMessage(pi.base.bv, snippet_), font);
+ }
}
void RenderPreview::startLoading(Buffer const & buffer) const
{
- if (!activated() && !snippet_.empty())
+ if (status() == LyXRC::PREVIEW_OFF || snippet_.empty())
return;
- graphics::Previews & previews = graphics::Previews::get();
- graphics::PreviewLoader & loader = previews.loader(buffer);
+ graphics::PreviewLoader const & loader = getPreviewLoader(buffer);
loader.startLoading();
}
void RenderPreview::addPreview(string const & latex_snippet,
Buffer const & buffer)
{
- if (!activated())
+ if (status() == LyXRC::PREVIEW_OFF)
return;
- graphics::Previews & previews = graphics::Previews::get();
- graphics::PreviewLoader & loader = previews.loader(buffer);
+ graphics::PreviewLoader & loader = getPreviewLoader(buffer);
addPreview(latex_snippet, loader);
}
void RenderPreview::addPreview(string const & latex_snippet,
graphics::PreviewLoader & ploader)
{
- if (!activated())
+ if (status() == LyXRC::PREVIEW_OFF)
return;
snippet_ = support::trim(latex_snippet);
- pimage_ = 0;
if (snippet_.empty())
return;
- pimage_ = ploader.preview(snippet_);
- if (pimage_)
+ if (ploader.preview(snippet_))
return;
// If this is the first time of calling, connect to the
if (snippet_.empty())
return;
- graphics::Previews & previews = graphics::Previews::get();
- graphics::PreviewLoader & loader = previews.loader(buffer);
+ graphics::PreviewLoader & loader = getPreviewLoader(buffer);
loader.remove(snippet_);
snippet_.erase();
- pimage_ = 0;
-}
-
-
-bool RenderPreview::previewReady() const
-{
- return pimage_ ? pimage_->image() : false;
}
void RenderPreview::imageReady(graphics::PreviewImage const & pimage)
{
// Check the current snippet is the same as that previewed.
- if (snippet_ != pimage.snippet())
- return;
-
- pimage_ = &pimage;
- preview_ready_signal_();
+ if (snippet_ == pimage.snippet())
+ LyX::cref().updateInset(parent_);
}
+RenderMonitoredPreview::RenderMonitoredPreview(InsetBase const * inset)
+ : RenderPreview(inset),
+ monitor_(std::string(), 2000)
+{}
+
+
void RenderMonitoredPreview::setAbsFile(string const & file)
{
monitor_.reset(file);
projects / lyx.git / blobdiff