#include "WorkArea.h"
#include "font_metrics.h"
+#include "funcrequest.h"
#include "lyx_gui.h"
+#include "lyxfunc.h"
#include "Painter.h"
#include "BufferView.h"
#include "lyxrc.h"
#include "lyxrow.h"
#include "lyxtext.h"
+#include "LyXView.h"
#include "metricsinfo.h"
#include "paragraph.h"
#include "rowpainter.h"
#include "graphics/GraphicsImage.h"
#include "graphics/GraphicsLoader.h"
+#include "gettext.h"
#include "support/filetools.h" // LibFileSearch
+#include "support/forkedcontr.h"
#include <boost/utility.hpp>
#include <boost/bind.hpp>
-#include <boost/signals/trackable.hpp>
+#include <boost/current_function.hpp>
using lyx::support::libFileSearch;
+using lyx::support::ForkedcallsController;
using std::endl;
using std::min;
namespace lyx {
namespace frontend {
+// FIXME: The SplashScreen should be transfered to the
+// LyXView and create a WorkArea only when a new buffer exists. This
+// will allow to call WorkArea::redraw() in the constructor.
class SplashScreen : boost::noncopyable, boost::signals::trackable {
public:
/// This is a singleton class. Get the instance.
loader_.reset(file);
}
-WorkArea::WorkArea(LyXView & owner, int w, int h)
- : greyed_out_(true)
+namespace {
+
+// All the below connection objects are needed because of a bug in some
+// versions of GCC (<=2.96 are on the suspects list.) By having and assigning
+// to these connections we avoid a segfault upon startup, and also at exit.
+// (Lgb)
+
+boost::signals::connection timecon;
+
+} // anon namespace
+
+WorkArea::WorkArea(LyXView & lyx_view)
+ : buffer_view_(0), lyx_view_(lyx_view), greyed_out_(true),
+ cursor_visible_(false), cursor_timeout_(400)
{
// Start loading the pixmap as soon as possible
if (lyxrc.show_banner) {
splash.connect(boost::bind(&WorkArea::checkAndGreyOut, this));
splash.startLoading();
}
+
+ // Setup the signals
+ timecon = cursor_timeout_.timeout
+ .connect(boost::bind(&WorkArea::toggleCursor, this));
+
+ cursor_timeout_.start();
+}
+
+
+void WorkArea::setBufferView(BufferView * buffer_view)
+{
+ if (buffer_view_) {
+ message_connection_.disconnect();
+ lyx_view_.disconnectBufferView();
+ }
+
+ theApp->setBufferView(buffer_view);
+
+ hideCursor();
+ buffer_view_ = buffer_view;
+ toggleCursor();
+
+ message_connection_ = buffer_view_->message.connect(
+ boost::bind(&WorkArea::displayMessage, this, _1));
+
+ lyx_view_.connectBufferView(*buffer_view);
+}
+
+
+BufferView & WorkArea::bufferView()
+{
+ return *buffer_view_;
+}
+
+
+BufferView const & WorkArea::bufferView() const
+{
+ return *buffer_view_;
}
}
-void WorkArea::redraw(BufferView & bv, ViewMetricsInfo const & vi)
+void WorkArea::redraw()
{
+ if (!buffer_view_)
+ return;
+
+ if (!buffer_view_->buffer()) {
+ greyOut();
+ updateScrollbar();
+ return;
+ }
+
+ buffer_view_->updateMetrics(false);
+
+ updateScrollbar();
+
+ ViewMetricsInfo const & vi = buffer_view_->viewMetricsInfo();
greyed_out_ = false;
getPainter().start();
- paintText(bv, vi);
+ paintText(*buffer_view_, vi, getPainter());
lyxerr[Debug::DEBUG] << "Redraw screen" << endl;
int const ymin = std::max(vi.y1, 0);
int const ymax =
( vi.p2 < vi.size - 1 ? vi.y2 : height() );
expose(0, ymin, width(), ymax - ymin);
getPainter().end();
- theCoords.doneUpdating();
+
+ lyxerr[Debug::DEBUG]
+ << " ymin = " << ymin << " width() = " << width()
+ << " ymax-ymin = " << ymax-ymin << std::endl;
+}
+
+
+void WorkArea::processKeySym(LyXKeySymPtr key,
+ key_modifier::state state)
+{
+ hideCursor();
+ lyx_view_.getLyXFunc().processKeySym(key, state);
+
+ /* This is perhaps a bit of a hack. When we move
+ * around, or type, it's nice to be able to see
+ * the cursor immediately after the keypress. So
+ * we reset the toggle timeout and force the visibility
+ * of the cursor. Note we cannot do this inside
+ * dispatch() itself, because that's called recursively.
+ */
+// if (buffer_view_->buffer())
+ toggleCursor();
+
+ // uneeded "redraw()" call commented out for now.
+ // When/if the call to LyXView::redrawWorkArea() in "lyxfunc.C:1610"
+ // is not needed anymore, this line should be uncommented out
+ //redraw();
+}
+
+
+void WorkArea::dispatch(FuncRequest const & cmd0)
+{
+ // Handle drag&drop
+ if (cmd0.action == LFUN_FILE_OPEN) {
+ lyx_view_.dispatch(cmd0);
+ return;
+ }
+
+ buffer_view_->workAreaDispatch(cmd0);
+
+ // Skip these when selecting
+ if (cmd0.action != LFUN_MOUSE_MOTION) {
+ lyx_view_.updateLayoutChoice();
+ lyx_view_.updateMenubar();
+ lyx_view_.updateToolbars();
+ }
+
+ // Slight hack: this is only called currently when we
+ // clicked somewhere, so we force through the display
+ // of the new status here.
+ lyx_view_.clearMessage();
+
+ redraw();
+}
+
+
+void WorkArea::resizeBufferView()
+{
+ lyx_view_.busy(true);
+ lyx_view_.message(_("Formatting document..."));
+ buffer_view_->workAreaResize(width(), height());
+ lyx_view_.updateLayoutChoice();
+ redraw();
+ lyx_view_.busy(false);
+ lyx_view_.clearMessage();
+}
+
+
+void WorkArea::updateScrollbar()
+{
+ buffer_view_->updateScrollbar();
+ ScrollbarParameters const & scroll_ = buffer_view_->scrollbarParameters();
+ setScrollbarParams(scroll_.height, scroll_.position,
+ scroll_.lineScrollHeight);
+}
+
+
+void WorkArea::scrollBufferView(int position)
+{
+ buffer_view_->scrollDocView(position);
+ redraw();
+ hideCursor();
+ if (lyxrc.cursor_follows_scrollbar) {
+ buffer_view_->setCursorFromScrollbar();
+ lyx_view_.updateLayoutChoice();
+ }
+ toggleCursor();
}
x += 260;
y += 265;
- getPainter().text(x, y, splash.text(), splash.font());
+ string stext = splash.text();
+ docstring dstext(stext.begin(), stext.end());
+ getPainter().text(x, y, dstext, splash.font());
}
expose(0, 0, width(), height());
getPainter().end();
}
+
+void WorkArea::showCursor()
+{
+ if (cursor_visible_)
+ return;
+
+ if (!buffer_view_->buffer())
+ return;
+
+ CursorShape shape = BAR_SHAPE;
+
+ LyXText const & text = *buffer_view_->getLyXText();
+ LyXFont const & realfont = text.real_current_font;
+ BufferParams const & bp = buffer_view_->buffer()->params();
+ bool const samelang = realfont.language() == bp.language;
+ bool const isrtl = realfont.isVisibleRightToLeft();
+
+ if (!samelang || isrtl != bp.language->rightToLeft()) {
+ shape = L_SHAPE;
+ if (isrtl)
+ shape = REVERSED_L_SHAPE;
+ }
+
+ // The ERT language hack needs fixing up
+ if (realfont.language() == latex_language)
+ shape = BAR_SHAPE;
+
+ LyXFont const font = buffer_view_->cursor().getFont();
+ int const asc = font_metrics::maxAscent(font);
+ int const des = font_metrics::maxDescent(font);
+ int h = asc + des;
+ int x = 0;
+ int y = 0;
+ buffer_view_->cursor().getPos(x, y);
+ y -= asc;
+
+ // if it doesn't touch the screen, don't try to show it
+ if (y + h < 0 || y >= height())
+ return;
+
+ cursor_visible_ = true;
+ showCursor(x, y, h, shape);
+}
+
+
+void WorkArea::hideCursor()
+{
+ if (!cursor_visible_)
+ return;
+
+ cursor_visible_ = false;
+ removeCursor();
+}
+
+
+void WorkArea::toggleCursor()
+{
+ if (buffer_view_->buffer()) {
+
+ if (cursor_visible_)
+ hideCursor();
+ else
+ showCursor();
+
+ // Use this opportunity to deal with any child processes that
+ // have finished but are waiting to communicate this fact
+ // to the rest of LyX.
+ ForkedcallsController & fcc = ForkedcallsController::get();
+ fcc.handleCompletedProcesses();
+ }
+
+ cursor_timeout_.restart();
+}
+
+
+void WorkArea::displayMessage(lyx::docstring const & message)
+{
+ lyx_view_.message(message);
+}
+
} // namespace frontend
} // namespace lyx
projects / lyx.git / blobdiff