/*
+ * Copyright (C) 2009 Juanjo Marín <juanj.marin@juntadeandalucia.es>
* Copyright (c) 2007 Carlos Garcia Campos <carlosgc@gnome.org>
* Copyright (C) 2000-2003 Marco Pesenti Gritti
*
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
-#include "ev-document-misc.h"
+#include <config.h>
+
#include <string.h>
+#include <math.h>
+
#include <gtk/gtk.h>
+#include "ev-document-misc.h"
+
/* Returns a new GdkPixbuf that is suitable for placing in the thumbnail view.
* It is four pixels wider and taller than the source. If source_pixbuf is not
* NULL, then it will fill the return pixbuf with the contents of
* source_pixbuf.
*/
-GdkPixbuf *
-ev_document_misc_get_thumbnail_frame (int width,
- int height,
- GdkPixbuf *source_pixbuf)
+static GdkPixbuf *
+create_thumbnail_frame (int width,
+ int height,
+ GdkPixbuf *source_pixbuf,
+ gboolean fill_bg)
{
GdkPixbuf *retval;
guchar *data;
}
/* make sure no one is passing us garbage */
- g_assert (width_r >= 0 && height_r >= 0);
+ g_return_val_if_fail (width_r >= 0 && height_r >= 0, NULL);
retval = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
TRUE, 8,
rowstride = gdk_pixbuf_get_rowstride (retval);
gdk_pixbuf_fill (retval, 0x000000ff);
- for (i = 1; i < height_r + 1; i++)
- memset (data + (rowstride * i) + 4, 0xffffffff, width_r * 4);
+ if (fill_bg) {
+ for (i = 1; i < height_r + 1; i++)
+ memset (data + (rowstride * i) + 4, 0xffffffff, width_r * 4);
+ }
/* copy the source pixbuf */
if (source_pixbuf)
return retval;
}
+GdkPixbuf *
+ev_document_misc_get_thumbnail_frame (int width,
+ int height,
+ GdkPixbuf *source_pixbuf)
+{
+ return create_thumbnail_frame (width, height, source_pixbuf, TRUE);
+}
+
+GdkPixbuf *
+ev_document_misc_get_loading_thumbnail (int width,
+ int height,
+ gboolean inverted_colors)
+{
+ return create_thumbnail_frame (width, height, NULL, !inverted_colors);
+}
+
void
ev_document_misc_get_page_border_size (gint page_width,
gint page_height,
void
-ev_document_misc_paint_one_page (GdkDrawable *drawable,
+ev_document_misc_paint_one_page (cairo_t *cr,
GtkWidget *widget,
GdkRectangle *area,
GtkBorder *border,
- gboolean highlight)
+ gboolean highlight,
+ gboolean inverted_colors)
{
- gdk_draw_rectangle (drawable,
- highlight ?
- widget->style->text_gc[widget->state] : widget->style->dark_gc[widget->state],
- TRUE,
- area->x,
- area->y,
- area->width,
- area->height);
- gdk_draw_rectangle (drawable,
- widget->style->white_gc,
- TRUE,
- area->x + border->left,
- area->y + border->top,
- area->width - (border->left + border->right),
- area->height - (border->top + border->bottom));
- gdk_draw_rectangle (drawable,
- widget->style->mid_gc[widget->state],
- TRUE,
- area->x,
- area->y + area->height - (border->bottom - border->top),
- border->bottom - border->top,
- border->bottom - border->top);
- gdk_draw_rectangle (drawable,
- widget->style->mid_gc[widget->state],
- TRUE,
- area->x + area->width - (border->right - border->left),
- area->y,
- border->right - border->left,
- border->right - border->left);
+ GtkStyleContext *context = gtk_widget_get_style_context (widget);
+ GtkStateFlags state = gtk_widget_get_state_flags (widget);
+ GdkRGBA fg, bg, shade_bg;
+ GtkSymbolicColor *c1, *c2;
+
+ gtk_style_context_get_background_color (context, state, &bg);
+ gtk_style_context_get_color (context, state, &fg);
+
+ // FIXME: should we cache the shade_bg?
+ c1 = gtk_symbolic_color_new_literal (&bg);
+ c2 = gtk_symbolic_color_new_shade (c1, 0.7);
+ gtk_symbolic_color_resolve (c2, NULL, &shade_bg);
+ gtk_symbolic_color_unref (c1);
+ gtk_symbolic_color_unref (c2);
+
+ gdk_cairo_set_source_rgba (cr, highlight ? &fg : &shade_bg);
+ gdk_cairo_rectangle (cr, area);
+ cairo_fill (cr);
+
+ if (inverted_colors)
+ cairo_set_source_rgb (cr, 0, 0, 0);
+ else
+ cairo_set_source_rgb (cr, 1, 1, 1);
+ cairo_rectangle (cr,
+ area->x + border->left,
+ area->y + border->top,
+ area->width - (border->left + border->right),
+ area->height - (border->top + border->bottom));
+ cairo_fill (cr);
+ gdk_cairo_set_source_rgba (cr, &bg);
+ cairo_rectangle (cr,
+ area->x,
+ area->y + area->height - (border->bottom - border->top),
+ border->bottom - border->top,
+ border->bottom - border->top);
+ cairo_fill (cr);
+
+ cairo_rectangle (cr,
+ area->x + area->width - (border->right - border->left),
+ area->y,
+ border->right - border->left,
+ border->right - border->left);
+ cairo_fill (cr);
}
cairo_surface_t *
{
cairo_surface_t *surface;
cairo_t *cr;
-
- surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
+
+ g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
+
+ surface = cairo_image_surface_create (gdk_pixbuf_get_has_alpha (pixbuf) ?
+ CAIRO_FORMAT_ARGB32 : CAIRO_FORMAT_RGB24,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf));
cr = cairo_create (surface);
return surface;
}
+GdkPixbuf *
+ev_document_misc_pixbuf_from_surface (cairo_surface_t *surface)
+{
+ g_return_val_if_fail (surface, NULL);
+
+ return gdk_pixbuf_get_from_surface (surface,
+ 0, 0,
+ cairo_image_surface_get_width (surface),
+ cairo_image_surface_get_height (surface));
+}
+
cairo_surface_t *
ev_document_misc_surface_rotate_and_scale (cairo_surface_t *surface,
gint dest_width,
}
new_surface = cairo_surface_create_similar (surface,
- CAIRO_CONTENT_COLOR_ALPHA,
+ cairo_surface_get_content (surface),
new_width, new_height);
cr = cairo_create (new_surface);
default:
cairo_translate (cr, 0, 0);
}
- cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_BILINEAR);
- cairo_scale (cr,
- (gdouble)dest_width / width,
- (gdouble)dest_height / height);
+
+ if (dest_width != width || dest_height != height) {
+ cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_BILINEAR);
+ cairo_scale (cr,
+ (gdouble)dest_width / width,
+ (gdouble)dest_height / height);
+ }
+
cairo_rotate (cr, dest_rotation * G_PI / 180.0);
cairo_set_source_surface (cr, surface, 0, 0);
cairo_paint (cr);
return new_surface;
}
-
+
+void
+ev_document_misc_invert_surface (cairo_surface_t *surface) {
+ cairo_t *cr;
+
+ cr = cairo_create (surface);
+
+ /* white + DIFFERENCE -> invert */
+ cairo_set_operator (cr, CAIRO_OPERATOR_DIFFERENCE);
+ cairo_set_source_rgb (cr, 1., 1., 1.);
+ cairo_paint(cr);
+ cairo_destroy (cr);
+}
+
+void
+ev_document_misc_invert_pixbuf (GdkPixbuf *pixbuf)
+{
+ guchar *data, *p;
+ guint width, height, x, y, rowstride, n_channels;
+
+ n_channels = gdk_pixbuf_get_n_channels (pixbuf);
+ g_assert (gdk_pixbuf_get_colorspace (pixbuf) == GDK_COLORSPACE_RGB);
+ g_assert (gdk_pixbuf_get_bits_per_sample (pixbuf) == 8);
+
+ /* First grab a pointer to the raw pixel data. */
+ data = gdk_pixbuf_get_pixels (pixbuf);
+
+ /* Find the number of bytes per row (could be padded). */
+ rowstride = gdk_pixbuf_get_rowstride (pixbuf);
+
+ width = gdk_pixbuf_get_width (pixbuf);
+ height = gdk_pixbuf_get_height (pixbuf);
+ for (x = 0; x < width; x++) {
+ for (y = 0; y < height; y++) {
+ /* Calculate pixel's offset into the data array. */
+ p = data + x * n_channels + y * rowstride;
+ /* Change the RGB values*/
+ p[0] = 255 - p[0];
+ p[1] = 255 - p[1];
+ p[2] = 255 - p[2];
+ }
+ }
+}
+
+gdouble
+ev_document_misc_get_screen_dpi (GdkScreen *screen)
+{
+ gdouble dp, di;
+
+ /*diagonal in pixels*/
+ dp = hypot (gdk_screen_get_width (screen), gdk_screen_get_height (screen));
+
+ /*diagonal in inches*/
+ di = hypot (gdk_screen_get_width_mm(screen), gdk_screen_get_height_mm (screen)) / 25.4;
+
+ return (dp / di);
+}
+
+/* Returns a locale specific date and time representation */
+gchar *
+ev_document_misc_format_date (GTime utime)
+{
+ time_t time = (time_t) utime;
+ char s[256];
+ const char fmt_hack[] = "%c";
+ size_t len;
+#ifdef HAVE_LOCALTIME_R
+ struct tm t;
+ if (time == 0 || !localtime_r (&time, &t)) return NULL;
+ len = strftime (s, sizeof (s), fmt_hack, &t);
+#else
+ struct tm *t;
+ if (time == 0 || !(t = localtime (&time)) ) return NULL;
+ len = strftime (s, sizeof (s), fmt_hack, t);
+#endif
+
+ if (len == 0 || s[0] == '\0') return NULL;
+
+ return g_locale_to_utf8 (s, -1, NULL, NULL, NULL);
+}
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff