-/* This file is part of
-* ======================================================
-*
-* LyX, The Document Processor
-*
-* Copyright 1995 Matthias Ettrich
-* Copyright 1995-1998 The LyX Team
-*
-* ====================================================== */
+/**
+ * \file screen.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author John Levon
+ *
+ * Full author contact details are available in file CREDITS.
+ *
+ * Splash screen code added by Angus Leeming
+ */
#include <config.h>
-#ifdef __GNUG__
-#pragma implementation
-#endif
-
-#include <algorithm>
-
#include "screen.h"
-#include "lyxtext.h"
-#include "lyxrow.h"
-#include "frontends/Painter.h"
-#include "frontends/WorkArea.h"
-#include "buffer.h"
-#include "BufferView.h"
#include "font_metrics.h"
-#include "insets/insettext.h"
-#include "frontends/xforms/ColorHandler.h"
-#include "language.h"
-
-using std::max;
-using std::min;
+#include "lyx_gui.h"
+#include "Painter.h"
+#include "WorkArea.h"
-namespace {
-
-GC createGC()
-{
- XGCValues val;
- val.foreground = BlackPixel(fl_get_display(),
- DefaultScreen(fl_get_display()));
-
- val.function = GXcopy;
- val.graphics_exposures = false;
- val.line_style = LineSolid;
- val.line_width = 0;
- return XCreateGC(fl_get_display(), RootWindow(fl_get_display(), 0),
- GCForeground | GCFunction | GCGraphicsExposures
- | GCLineWidth | GCLineStyle , &val);
-}
-
-} // namespace anon
+#include "BufferView.h"
+#include "buffer.h"
+#include "bufferparams.h"
+#include "coordcache.h"
+#include "cursor.h"
+#include "debug.h"
+#include "language.h"
+#include "LColor.h"
+#include "lyxfont.h"
+#include "lyxrc.h"
+#include "lyxrow.h"
+#include "lyxtext.h"
+#include "metricsinfo.h"
+#include "paragraph.h"
+#include "rowpainter.h"
+#include "version.h"
+#include "graphics/GraphicsImage.h"
+#include "graphics/GraphicsLoader.h"
-// Constructor
-LScreen::LScreen(WorkArea & o)
- : owner(o), force_clear(true)
-{
- // the cursor isnt yet visible
- cursor_visible = false;
- cursor_pixmap = 0;
- cursor_pixmap_x = 0;
- cursor_pixmap_y = 0;
- cursor_pixmap_w = 0;
- cursor_pixmap_h = 0;
-
- // We need this GC
- gc_copy = createGC();
-}
+#include "support/filetools.h" // LibFileSearch
+#include <boost/utility.hpp>
+#include <boost/bind.hpp>
+#include <boost/signals/trackable.hpp>
-LScreen::~LScreen()
-{
- XFreeGC(fl_get_display(), gc_copy);
-}
+using lyx::support::LibFileSearch;
+using std::endl;
+using std::min;
+using std::max;
+using std::string;
-void LScreen::reset()
-{
- XFreeGC(fl_get_display(), gc_copy);
- // the cursor isnt yet visible
- cursor_visible = false;
- cursor_pixmap = 0;
- cursor_pixmap_x = 0;
- cursor_pixmap_y = 0;
- cursor_pixmap_w = 0;
- cursor_pixmap_h = 0;
-
- // We need this GC
- gc_copy = createGC();
-}
-
-
-void LScreen::setCursorColor()
-{
- if (!lyxColorHandler.get()) return;
- GC gc = lyxColorHandler->getGCForeground(LColor::cursor);
+namespace {
- XGCValues val;
- XGetGCValues(fl_get_display(),
- gc, GCForeground, &val);
- XChangeGC(fl_get_display(), gc_copy, GCForeground, &val);
-}
+class SplashScreen : boost::noncopyable, boost::signals::trackable {
+public:
+ /// This is a singleton class. Get the instance.
+ static SplashScreen const & get();
+ ///
+ lyx::graphics::Image const * image() const { return loader_.image(); }
+ ///
+ string const & text() const { return text_; }
+ ///
+ LyXFont const & font() const { return font_; }
+ ///
+ void connect(lyx::graphics::Loader::slot_type const & slot) const {
+ loader_.connect(slot);
+ }
+ ///
+ void startLoading() const {
+ if (loader_.status() == lyx::graphics::WaitingToLoad)
+ loader_.startLoading();
+ }
+private:
+ /** Make the c-tor private so we can control how many objects
+ * are instantiated.
+ */
+ SplashScreen();
-void LScreen::redraw(LyXText * text, BufferView * bv)
-{
- drawFromTo(text, bv, 0, owner.workHeight(), 0, 0, text == bv->text);
- expose(0, 0, owner.workWidth(), owner.workHeight());
- if (cursor_visible) {
- cursor_visible = false;
- bv->showCursor();
- }
-}
+ ///
+ lyx::graphics::Loader loader_;
+ /// The text to be written on top of the pixmap
+ string const text_;
+ /// in this font...
+ LyXFont font_;
+};
-void LScreen::expose(int x, int y, int exp_width, int exp_height)
+SplashScreen const & SplashScreen::get()
{
- XCopyArea(fl_get_display(),
- owner.getPixmap(),
- owner.getWin(),
- gc_copy,
- x, y,
- exp_width, exp_height,
- x + owner.xpos(),
- y + owner.ypos());
+ static SplashScreen singleton;
+ return singleton;
}
-void LScreen::drawFromTo(LyXText * text, BufferView * bv,
- int y1, int y2, int y_offset, int x_offset,
- bool internal)
+SplashScreen::SplashScreen()
+ : text_(lyx_version ? lyx_version : "unknown")
{
- int y_text = text->first_y + y1;
-
- // get the first needed row
- Row * row = text->getRowNearY(y_text);
- // y_text is now the real beginning of the row
-
- int y = y_text - text->first_y;
- // y1 is now the real beginning of row on the screen
-
- while (row != 0 && y < y2) {
- LyXText::text_status st = text->status();
- text->getVisibleRow(bv, y + y_offset,
- x_offset, row, y + text->first_y);
- internal = internal && (st != LyXText::CHANGED_IN_DRAW);
- while (internal && text->status() == LyXText::CHANGED_IN_DRAW) {
- text->fullRebreak(bv);
- st = LyXText::NEED_MORE_REFRESH;
- text->setCursor(bv, text->cursor.par(),
- text->cursor.pos());
- text->status(bv, st);
- // we should be sure our row-pointer is still valid, so it's
- // better to recompute it.
- y_text = y + text->first_y;
- row = text->getRowNearY(y_text);
- y = y_text - text->first_y;
- text->getVisibleRow(bv, y + y_offset,
- x_offset, row, y + text->first_y);
- }
- y += row->height();
- row = row->next();
- }
- force_clear = false;
-
- // maybe we have to clear the screen at the bottom
- if ((y < y2) && text->bv_owner) {
- owner.getPainter().fillRectangle(0, y,
- owner.workWidth(),
- y2 - y,
- LColor::bottomarea);
- }
-}
+ if (!lyxrc.show_banner)
+ return;
+ string const file = LibFileSearch("images", "banner", "ppm");
+ if (file.empty())
+ return;
-void LScreen::drawOneRow(LyXText * text, BufferView * bv, Row * row,
- int y_text, int y_offset, int x_offset)
-{
- int const y = y_text - text->first_y + y_offset;
+ // The font used to display the version info
+ font_.setFamily(LyXFont::SANS_FAMILY);
+ font_.setSeries(LyXFont::BOLD_SERIES);
+ font_.setSize(LyXFont::SIZE_NORMAL);
+ font_.setColor(LColor::yellow);
- if (((y + row->height()) > 0) &&
- ((y - row->height()) <= static_cast<int>(owner.workHeight()))) {
- // ok there is something visible
- text->getVisibleRow(bv, y, x_offset, row, y + text->first_y);
- }
- force_clear = false;
+ // Load up the graphics file
+ loader_.reset(file);
}
+} // namespace anon
+
-/* draws the screen, starting with textposition y. uses as much already
- * printed pixels as possible */
-void LScreen::draw(LyXText * text, BufferView * bv, unsigned int y)
+LyXScreen::LyXScreen()
+ : greyed_out_(true), cursor_visible_(false)
{
- if (cursor_visible) hideCursor();
-
- int const old_first = text->first_y;
- bool internal = (text == bv->text);
- text->first_y = y;
-
- // is any optimiziation possible?
- if ((y - old_first) < owner.workHeight()
- && (old_first - y) < owner.workHeight())
- {
- if (text->first_y < old_first) {
- drawFromTo(text, bv, 0,
- old_first - text->first_y, 0, 0, internal);
- XCopyArea (fl_get_display(),
- owner.getWin(),
- owner.getWin(),
- gc_copy,
- owner.xpos(),
- owner.ypos(),
- owner.workWidth(),
- owner.workHeight() - old_first + text->first_y,
- owner.xpos(),
- owner.ypos() + old_first - text->first_y
- );
- // expose the area drawn
- expose(0, 0,
- owner.workWidth(),
- old_first - text->first_y);
- } else {
- drawFromTo(text, bv,
- owner.workHeight() + old_first - text->first_y,
- owner.workHeight(), 0, 0, internal);
- XCopyArea (fl_get_display(),
- owner.getWin(),
- owner.getWin(),
- gc_copy,
- owner.xpos(),
- owner.ypos() + text->first_y - old_first,
- owner.workWidth(),
- owner.workHeight() + old_first - text->first_y,
- owner.xpos(),
- owner.ypos());
- // expose the area drawn
- expose(0, owner.workHeight() + old_first - text->first_y,
- owner.workWidth(), text->first_y - old_first);
- }
- } else {
- // make a dumb new-draw
- drawFromTo(text, bv, 0, owner.workHeight(), 0, 0, internal);
- expose(0, 0, owner.workWidth(), owner.workHeight());
+ // Start loading the pixmap as soon as possible
+ if (lyxrc.show_banner) {
+ SplashScreen const & splash = SplashScreen::get();
+ splash.connect(boost::bind(&LyXScreen::checkAndGreyOut, this));
+ splash.startLoading();
}
}
-void LScreen::showCursor(LyXText const * text, BufferView const * bv)
+LyXScreen::~LyXScreen()
{
- if (!cursor_visible) {
- Cursor_Shape shape = BAR_SHAPE;
- if (text->real_current_font.language() !=
- bv->buffer()->params.language
- || text->real_current_font.isVisibleRightToLeft()
- != bv->buffer()->params.language->RightToLeft())
- shape = (text->real_current_font.isVisibleRightToLeft())
- ? REVERSED_L_SHAPE : L_SHAPE;
- showManualCursor(text, text->cursor.x(), text->cursor.y(),
- font_metrics::maxAscent(text->real_current_font),
- font_metrics::maxDescent(text->real_current_font),
- shape);
- }
}
-/* returns true if first has changed, otherwise false */
-bool LScreen::fitManualCursor(LyXText * text, BufferView * bv,
- int /*x*/, int y, int asc, int desc)
+void LyXScreen::checkAndGreyOut()
{
- int newtop = text->first_y;
-
- if (y + desc - text->first_y >= static_cast<int>(owner.workHeight()))
- newtop = y - 3 * owner.workHeight() / 4; // the scroll region must be so big!!
- else if (y - asc < text->first_y
- && text->first_y > 0) {
- newtop = y - owner.workHeight() / 4;
- }
-
- newtop = max(newtop, 0); // can newtop ever be < 0? (Lgb)
-
- if (newtop != text->first_y) {
- draw(text, bv, newtop);
- text->first_y = newtop;
- return true;
- }
- return false;
+ if (greyed_out_)
+ greyOut();
}
-void LScreen::showManualCursor(LyXText const * text, int x, int y,
- int asc, int desc, Cursor_Shape shape)
+void LyXScreen::showCursor(BufferView & bv)
{
- // Update the cursor color.
- setCursorColor();
+ if (cursor_visible_)
+ return;
+
+ if (!bv.available())
+ return;
- int const y1 = max(y - text->first_y - asc, 0);
- int const y_tmp = min(y - text->first_y + desc,
- static_cast<int>(owner.workHeight()));
+ Cursor_Shape shape = BAR_SHAPE;
- // Secure against very strange situations
- int const y2 = max(y_tmp, y1);
+ LyXText const & text = *bv.getLyXText();
+ LyXFont const & realfont = text.real_current_font;
+ BufferParams const & bp = bv.buffer()->params();
+ bool const samelang = realfont.language() == bp.language;
+ bool const isrtl = realfont.isVisibleRightToLeft();
- if (cursor_pixmap) {
- XFreePixmap(fl_get_display(), cursor_pixmap);
- cursor_pixmap = 0;
+ if (!samelang || isrtl != bp.language->RightToLeft()) {
+ shape = L_SHAPE;
+ if (isrtl)
+ shape = REVERSED_L_SHAPE;
}
- if (y2 > 0 && y1 < int(owner.workHeight())) {
- cursor_pixmap_h = y2 - y1 + 1;
- cursor_pixmap_y = y1;
-
- switch (shape) {
- case BAR_SHAPE:
- cursor_pixmap_w = 1;
- cursor_pixmap_x = x;
- break;
- case L_SHAPE:
- cursor_pixmap_w = cursor_pixmap_h/3;
- cursor_pixmap_x = x;
- break;
- case REVERSED_L_SHAPE:
- cursor_pixmap_w = cursor_pixmap_h/3;
- cursor_pixmap_x = x - cursor_pixmap_w + 1;
- break;
- }
-
- cursor_pixmap =
- XCreatePixmap (fl_get_display(),
- fl_root,
- cursor_pixmap_w,
- cursor_pixmap_h,
- fl_get_visual_depth());
- XCopyArea (fl_get_display(),
- owner.getWin(),
- cursor_pixmap,
- gc_copy,
- owner.xpos() + cursor_pixmap_x,
- owner.ypos() + cursor_pixmap_y,
- cursor_pixmap_w,
- cursor_pixmap_h,
- 0, 0);
- XDrawLine(fl_get_display(),
- owner.getWin(),
- gc_copy,
- x + owner.xpos(),
- y1 + owner.ypos(),
- x + owner.xpos(),
- y2 + owner.ypos());
- switch (shape) {
- case BAR_SHAPE:
- break;
- case L_SHAPE:
- case REVERSED_L_SHAPE:
- int const rectangle_h = (cursor_pixmap_h + 10) / 20;
- XFillRectangle(fl_get_display(),
- owner.getWin(),
- gc_copy,
- cursor_pixmap_x + owner.xpos(),
- y2 - rectangle_h + 1 + owner.ypos(),
- cursor_pixmap_w - 1, rectangle_h);
- break;
- }
+ // The ERT language hack needs fixing up
+ if (realfont.language() == latex_language)
+ shape = BAR_SHAPE;
+
+ LyXFont const font = bv.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;
+ bv.cursor().getPos(x, y);
+ y -= asc;
+ //lyxerr << "LyXScreen::showCursor x: " << x << " y: " << y << endl;
+
+ // if it doesn't touch the screen, don't try to show it
+ if (y + h < 0 || y >= workarea().workHeight())
+ return;
- }
- cursor_visible = true;
+ cursor_visible_ = true;
+ showCursor(x, y, h, shape);
}
-void LScreen::hideCursor()
+void LyXScreen::hideCursor()
{
- if (!cursor_visible) return;
-
- if (cursor_pixmap) {
- XCopyArea (fl_get_display(),
- cursor_pixmap,
- owner.getWin(),
- gc_copy,
- 0, 0,
- cursor_pixmap_w, cursor_pixmap_h,
- cursor_pixmap_x + owner.xpos(),
- cursor_pixmap_y + owner.ypos());
- }
- cursor_visible = false;
+ if (!cursor_visible_)
+ return;
+
+ cursor_visible_ = false;
+ removeCursor();
}
-void LScreen::cursorToggle(BufferView * bv) const
+void LyXScreen::toggleCursor(BufferView & bv)
{
- if (cursor_visible)
- bv->hideCursor();
+ if (cursor_visible_)
+ hideCursor();
else
- bv->showCursor();
+ showCursor(bv);
}
-/* returns a new top so that the cursor is visible */
-unsigned int LScreen::topCursorVisible(LyXCursor const & cursor, int top_y)
+void LyXScreen::prepareCursor()
{
- int const vheight = owner.workHeight();
- int newtop = top_y;
-
- Row * row = cursor.row();
-
- // Is this a hack? Yes, probably... (Lgb)
- if (!row)
- return max(newtop, 0);
-
- if (cursor.y() - row->baseline() + row->height()
- - top_y >= vheight) {
- if (row->height() < vheight
- && row->height() > vheight / 4) {
- newtop = cursor.y()
- + row->height()
- - row->baseline() - vheight;
- } else {
- // scroll down
- newtop = cursor.y()
- - vheight / 2; /* the scroll region must be so big!! */
- }
-
- } else if (static_cast<int>(cursor.y() - row->baseline()) <
- top_y && top_y > 0) {
- if (row->height() < vheight
- && row->height() > vheight / 4) {
- newtop = cursor.y() - row->baseline();
- } else {
- // scroll up
- newtop = cursor.y() - vheight / 2;
- newtop = min(newtop, top_y);
- }
- }
-
- newtop = max(newtop, 0);
-
- return newtop;
+ cursor_visible_ = false;
}
-/* scrolls the screen so that the cursor is visible, if necessary.
-* returns true if a change was made, otherwise false */
-bool LScreen::fitCursor(LyXText * text, BufferView * bv)
+void LyXScreen::redraw(BufferView & bv, ViewMetricsInfo const & vi)
{
- // Is a change necessary?
- int const newtop = topCursorVisible(text->cursor, text->first_y);
- bool const result = (newtop != text->first_y);
- if (result)
- draw(text, bv, newtop);
- return result;
+ greyed_out_ = false;
+ workarea().getPainter().start();
+ paintText(bv, vi);
+ lyxerr[Debug::DEBUG] << "Redraw screen" << endl;
+ expose(0, 0, workarea().workWidth(), workarea().workHeight());
+ workarea().getPainter().end();
+ theCoords.doneUpdating();
}
-void LScreen::update(LyXText * text, BufferView * bv,
- int y_offset, int x_offset)
+void LyXScreen::greyOut()
{
- switch (text->status()) {
- case LyXText::NEED_MORE_REFRESH:
- {
- int const y = max(int(text->refresh_y - text->first_y), 0);
- drawFromTo(text, bv, y, owner.workHeight(), y_offset, x_offset);
- text->refresh_y = 0;
- // otherwise this is called ONLY from BufferView_pimpl(update)
- // or we should see to set this flag accordingly
- if (text != bv->text)
- text->status(bv, LyXText::UNCHANGED);
- expose(0, y, owner.workWidth(), owner.workHeight() - y);
- }
- break;
- case LyXText::NEED_VERY_LITTLE_REFRESH:
- {
- // ok I will update the current cursor row
- drawOneRow(text, bv, text->refresh_row, text->refresh_y,
- y_offset, x_offset);
- // this because if we had a major update the refresh_row could
- // have been set to 0!
- if (text->refresh_row) {
- // otherwise this is called ONLY from BufferView_pimpl(update)
- // or we should see to set this flag accordingly
- if (text != bv->text)
- text->status(bv, LyXText::UNCHANGED);
- expose(0, text->refresh_y - text->first_y + y_offset,
- owner.workWidth(), text->refresh_row->height());
- }
- }
- break;
- case LyXText::CHANGED_IN_DRAW: // just to remove the warning
- case LyXText::UNCHANGED:
- // Nothing needs done
- break;
- }
-}
+ greyed_out_ = true;
+ workarea().getPainter().start();
+ workarea().getPainter().fillRectangle(0, 0,
+ workarea().workWidth(),
+ workarea().workHeight(),
+ LColor::bottomarea);
-void LScreen::toggleSelection(LyXText * text, BufferView * bv,
- bool kill_selection,
- int y_offset, int x_offset)
-{
- // only if there is a selection
- if (!text->selection.set()) return;
-
- int const bottom = min(
- max(static_cast<int>(text->selection.end.y()
- - text->selection.end.row()->baseline()
- + text->selection.end.row()->height()),
- text->first_y),
- static_cast<int>(text->first_y + owner.workHeight()));
- int const top = min(
- max(static_cast<int>(text->selection.start.y() -
- text->selection.start.row()->baseline()),
- text->first_y),
- static_cast<int>(text->first_y + owner.workHeight()));
-
- if (kill_selection)
- text->selection.set(false);
- drawFromTo(text, bv, top - text->first_y, bottom - text->first_y,
- y_offset, x_offset);
- expose(0, top - text->first_y,
- owner.workWidth(),
- bottom - text->first_y - (top - text->first_y));
-}
+ // Add a splash screen to the centre of the work area
+ SplashScreen const & splash = SplashScreen::get();
+ lyx::graphics::Image const * const splash_image = splash.image();
+ if (splash_image) {
+ int const w = splash_image->getWidth();
+ int const h = splash_image->getHeight();
+ int x = (workarea().workWidth() - w) / 2;
+ int y = (workarea().workHeight() - h) / 2;
-void LScreen::toggleToggle(LyXText * text, BufferView * bv,
- int y_offset, int x_offset)
-{
- if (text->toggle_cursor.par() == text->toggle_end_cursor.par()
- && text->toggle_cursor.pos() == text->toggle_end_cursor.pos())
- return;
+ workarea().getPainter().image(x, y, w, h, *splash_image);
- int const top_tmp = text->toggle_cursor.y()
- - text->toggle_cursor.row()->baseline();
- int const bottom_tmp = text->toggle_end_cursor.y()
- - text->toggle_end_cursor.row()->baseline()
- + text->toggle_end_cursor.row()->height();
-
- int const offset = y_offset < 0 ? y_offset : 0;
- int const bottom = min(max(bottom_tmp, text->first_y),
- static_cast<int>(text->first_y + owner.workHeight()))-offset;
- int const top = min(max(top_tmp, text->first_y),
- static_cast<int>(text->first_y + owner.workHeight()))-offset;
-
- drawFromTo(text, bv, top - text->first_y,
- bottom - text->first_y, y_offset,
- x_offset);
- expose(0, top - text->first_y, owner.workWidth(),
- bottom - text->first_y - (top - text->first_y));
+ x += 260;
+ y += 265;
+
+ workarea().getPainter().text(x, y, splash.text(), splash.font());
+ }
+ expose(0, 0, workarea().workWidth(), workarea().workHeight());
+ workarea().getPainter().end();
}
projects / lyx.git / blobdiff