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Merge branch 'printing-with-scintilla'

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This commit is contained in:
Colomban Wendling 2013-01-01 18:54:08 +01:00
commit d2a8a11587
2 changed files with 47 additions and 23 deletions
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4
scintilla/gtk/PlatGTK.cxx
View File

@ -541,6 +541,8 @@ void SurfaceImpl::Init(SurfaceID sid, WindowID wid) {
PLATFORM_ASSERT(wid);
context = cairo_reference(reinterpret_cast<cairo_t *>(sid));
pcontext = gtk_widget_create_pango_context(PWidget(wid));
// update the Pango context in case sid isn't the widget's surface
pango_cairo_update_context(context, pcontext);
layout = pango_layout_new(pcontext);
cairo_set_line_width(context, 1);
createdGC = true;
@ -554,6 +556,8 @@ void SurfaceImpl::InitPixMap(int width, int height, Surface *surface_, WindowID
PLATFORM_ASSERT(wid);
context = cairo_reference(surfImpl->context);
pcontext = gtk_widget_create_pango_context(PWidget(wid));
// update the Pango context in case surface_ isn't the widget's surface
pango_cairo_update_context(context, pcontext);
PLATFORM_ASSERT(pcontext);
layout = pango_layout_new(pcontext);
PLATFORM_ASSERT(layout);

66
src/printing.c
View File

@ -59,6 +59,7 @@ typedef struct
* takes more than a second) */
time_t print_time;
PangoLayout *layout; /* commonly used layout object */
gdouble sci_scale;
struct Sci_RangeToFormat fr;
GArray *pages;
@ -308,23 +309,21 @@ static void setup_range(DocInfo *dinfo, GtkPrintContext *ctx)
dinfo->fr.rc.top = dinfo->fr.rcPage.top;
dinfo->fr.rc.right = dinfo->fr.rcPage.right;
dinfo->fr.rc.bottom = dinfo->fr.rcPage.bottom;
#if GTK_CHECK_VERSION(2, 20, 0)
{
gdouble m_top, m_left, m_right, m_bottom;
if (gtk_print_context_get_hard_margins(ctx, &m_top, &m_bottom, &m_left, &m_right))
{
dinfo->fr.rc.left += m_left;
dinfo->fr.rc.top += m_top;
dinfo->fr.rc.right -= m_right;
dinfo->fr.rc.bottom -= m_bottom;
}
}
#endif
if (printing_prefs.print_page_header)
dinfo->fr.rc.top += dinfo->line_height * 3; /* header height */
if (printing_prefs.print_page_numbers)
dinfo->fr.rc.bottom -= dinfo->line_height * 1; /* footer height */
dinfo->fr.rcPage.left /= dinfo->sci_scale;
dinfo->fr.rcPage.top /= dinfo->sci_scale;
dinfo->fr.rcPage.right /= dinfo->sci_scale;
dinfo->fr.rcPage.bottom /= dinfo->sci_scale;
dinfo->fr.rc.left /= dinfo->sci_scale;
dinfo->fr.rc.top /= dinfo->sci_scale;
dinfo->fr.rc.right /= dinfo->sci_scale;
dinfo->fr.rc.bottom /= dinfo->sci_scale;
dinfo->fr.chrg.cpMin = 0;
dinfo->fr.chrg.cpMax = sci_get_length(dinfo->sci);
}
@ -333,6 +332,7 @@ static void setup_range(DocInfo *dinfo, GtkPrintContext *ctx)
static void begin_print(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
{
DocInfo *dinfo = user_data;
PangoContext *pango_ctx, *widget_pango_ctx;
PangoFontDescription *desc;
if (dinfo == NULL)
@ -351,9 +351,17 @@ static void begin_print(GtkPrintOperation *operation, GtkPrintContext *context,
scintilla_send_message(dinfo->sci, SCI_SETVIEWWS, SCWS_INVISIBLE, 0);
scintilla_send_message(dinfo->sci, SCI_SETVIEWEOL, FALSE, 0);
scintilla_send_message(dinfo->sci, SCI_SETEDGEMODE, EDGE_NONE, 0);
scintilla_send_message(dinfo->sci, SCI_SETPRINTMAGNIFICATION, (uptr_t) -2, 0); /* WTF? */
scintilla_send_message(dinfo->sci, SCI_SETPRINTCOLOURMODE, SC_PRINT_COLOURONWHITE, 0);
/* Scintilla doesn't respect the context resolution, so we'll scale ourselves.
* Actually Scintilla simply doesn't know about the resolution since it creates its own
* Pango context out of the Cairo target, and the resolution is in the GtkPrintOperation's
* Pango context */
pango_ctx = gtk_print_context_create_pango_context(context);
widget_pango_ctx = gtk_widget_get_pango_context(GTK_WIDGET(dinfo->sci));
dinfo->sci_scale = pango_cairo_context_get_resolution(pango_ctx) / pango_cairo_context_get_resolution(widget_pango_ctx);
g_object_unref(pango_ctx);
dinfo->pages = g_array_new(FALSE, FALSE, sizeof(gint));
dinfo->print_time = time(NULL);
@ -370,6 +378,19 @@ static void begin_print(GtkPrintOperation *operation, GtkPrintContext *context,
}
static gint format_range(DocInfo *dinfo, gboolean draw)
{
gint pos;
cairo_save(dinfo->fr.hdc);
cairo_scale(dinfo->fr.hdc, dinfo->sci_scale, dinfo->sci_scale);
pos = (gint) scintilla_send_message(dinfo->sci, SCI_FORMATRANGE, draw, (sptr_t) &dinfo->fr);
cairo_restore(dinfo->fr.hdc);
return pos;
}
static gboolean paginate(GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data)
{
DocInfo *dinfo = user_data;
@ -383,7 +404,7 @@ static gboolean paginate(GtkPrintOperation *operation, GtkPrintContext *context,
gtk_progress_bar_set_text(GTK_PROGRESS_BAR(main_widgets.progressbar), _("Paginating"));
g_array_append_val(dinfo->pages, dinfo->fr.chrg.cpMin);
dinfo->fr.chrg.cpMin = (gint) scintilla_send_message(dinfo->sci, SCI_FORMATRANGE, FALSE, (sptr_t) &dinfo->fr);
dinfo->fr.chrg.cpMin = format_range(dinfo, FALSE);
gtk_print_operation_set_n_pages(operation, dinfo->pages->len);
@ -423,25 +444,24 @@ static void draw_page(GtkPrintOperation *operation, GtkPrintContext *context,
else /* it's the last page, print 'til the end */
dinfo->fr.chrg.cpMax = sci_get_length(dinfo->sci);
scintilla_send_message(dinfo->sci, SCI_FORMATRANGE, TRUE, (sptr_t) &dinfo->fr);
format_range(dinfo, TRUE);
/* reset color */
cairo_set_source_rgb(cr, 0, 0, 0);
if (printing_prefs.print_line_numbers)
{ /* print a thin line between the line number margin and the data */
gint y1 = 0, y2 = height;
gdouble y1 = dinfo->fr.rc.top * dinfo->sci_scale;
gdouble y2 = dinfo->fr.rc.bottom * dinfo->sci_scale;
gdouble x = dinfo->fr.rc.left * dinfo->sci_scale + dinfo->margin_width;
if (printing_prefs.print_page_header)
y1 += (dinfo->line_height * 3) - 2; /* "- 2": to connect the line number line to
* the page header frame */
if (printing_prefs.print_page_numbers)
y2 -= (dinfo->line_height * 2) - 2;
y1 -= 2 - 0.3; /* to connect the line number line to the page header frame,
* 2 is the border, and 0.3 the line width */
cairo_set_line_width(cr, 0.3);
cairo_move_to(cr, dinfo->margin_width, y1);
cairo_line_to(cr, dinfo->margin_width, y2);
cairo_move_to(cr, x, y1);
cairo_line_to(cr, x, y2);
cairo_stroke(cr);
}