label-image.h \
label-barcode.c \
label-barcode.h \
+ pixbuf-util.c \
+ pixbuf-util.h \
xml-label.c \
xml-label.h \
xml-label-04.c \
label-image.h \
label-barcode.c \
label-barcode.h \
+ pixbuf-util.c \
+ pixbuf-util.h \
xml-label.c \
xml-label.h \
xml-label-04.c \
#include <glib.h>
#include <gdk/gdk.h>
+#include "pixbuf-util.h"
#include "pixmaps/checkerboard.xpm"
#include "debug.h"
gboolean screen_flag,
glMergeRecord *record);
+static void draw_shadow (glLabelObject *object,
+ cairo_t *cr,
+ gboolean screen_flag,
+ glMergeRecord *record);
+
static gboolean object_at (glLabelObject *object,
cairo_t *cr,
gdouble x_pixels,
label_object_class->copy = copy;
label_object_class->set_size = set_size;
label_object_class->draw_object = draw_object;
- label_object_class->draw_shadow = NULL;
+ label_object_class->draw_shadow = draw_shadow;
label_object_class->object_at = object_at;
object_class->finalize = gl_label_image_finalize;
gboolean screen_flag,
glMergeRecord *record)
{
- gdouble x0, y0;
gdouble w, h;
const GdkPixbuf *pixbuf;
gint image_w, image_h;
gl_debug (DEBUG_LABEL, "START");
gl_label_object_get_size (object, &w, &h);
- gl_label_object_get_position (object, &x0, &y0);
pixbuf = gl_label_image_get_pixbuf (GL_LABEL_IMAGE (object), record);
image_w = gdk_pixbuf_get_width (pixbuf);
}
+/*****************************************************************************/
+/* Draw shadow method. */
+/*****************************************************************************/
+static void
+draw_shadow (glLabelObject *object,
+ cairo_t *cr,
+ gboolean screen_flag,
+ glMergeRecord *record)
+{
+ gdouble w, h;
+ const GdkPixbuf *pixbuf;
+ GdkPixbuf *shadow_pixbuf;
+ gint image_w, image_h;
+ glColorNode *shadow_color_node;
+ guint shadow_color;
+ gdouble shadow_opacity;
+
+ gl_debug (DEBUG_LABEL, "START");
+
+ gl_label_object_get_size (object, &w, &h);
+
+ shadow_color_node = gl_label_object_get_shadow_color (object);
+ shadow_color = gl_color_node_expand (shadow_color_node, record);
+ if (shadow_color_node->field_flag && screen_flag)
+ {
+ shadow_color = GL_COLOR_SHADOW_MERGE_DEFAULT;
+ }
+ shadow_opacity = gl_label_object_get_shadow_opacity (object);
+
+ pixbuf = gl_label_image_get_pixbuf (GL_LABEL_IMAGE (object), record);
+ image_w = gdk_pixbuf_get_width (pixbuf);
+ image_h = gdk_pixbuf_get_height (pixbuf);
+ shadow_pixbuf = gl_pixbuf_util_create_shadow_pixbuf (pixbuf, shadow_color, shadow_opacity);
+
+ cairo_save (cr);
+
+ cairo_rectangle (cr, 0.0, 0.0, w, h);
+
+ cairo_scale (cr, w/image_w, h/image_h);
+ gdk_cairo_set_source_pixbuf (cr, (GdkPixbuf *)shadow_pixbuf, 0, 0);
+ cairo_fill (cr);
+
+ cairo_restore (cr);
+
+ g_object_unref (G_OBJECT (shadow_pixbuf));
+
+ gl_debug (DEBUG_LABEL, "END");
+}
+
+
/*****************************************************************************/
/* Is object at coordinates? */
/*****************************************************************************/
gtk_widget_hide (editor->priv->edit_page_vbox);
gtk_widget_hide (editor->priv->bc_page_vbox);
gtk_widget_hide (editor->priv->data_page_vbox);
- gtk_widget_hide (editor->priv->shadow_page_vbox);
+ gtk_widget_show_all (editor->priv->shadow_page_vbox);
}
else if (GL_IS_LABEL_TEXT (object))
{
--- /dev/null
+/*
+ * pixbuf-util.c
+ * Copyright (C) 2010 Jim Evins <evins@snaught.com>.
+ *
+ * This file is part of gLabels.
+ *
+ * gLabels is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * gLabels is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with gLabels. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include "pixbuf-util.h"
+
+#include "color.h"
+
+#include "debug.h"
+
+
+/*========================================================*/
+/* Private macros and constants. */
+/*========================================================*/
+
+
+/*========================================================*/
+/* Private types. */
+/*========================================================*/
+
+
+/*========================================================*/
+/* Private globals. */
+/*========================================================*/
+
+
+/*========================================================*/
+/* Private function prototypes. */
+/*========================================================*/
+
+
+/****************************************************************************/
+/* Create shadow version of given pixbuf. */
+/****************************************************************************/
+GdkPixbuf *
+gl_pixbuf_util_create_shadow_pixbuf (const GdkPixbuf *pixbuf,
+ guint shadow_color,
+ gdouble shadow_opacity)
+{
+ gint bits_per_sample, channels;
+ gboolean src_has_alpha;
+ gint width, height, src_rowstride, dest_rowstride;
+ GdkPixbuf *dest_pixbuf;
+ guchar *buf_src, *buf_dest;
+ guchar *p_src, *p_dest;
+ gint ix, iy;
+ guchar shadow_r, shadow_g, shadow_b;
+
+ g_return_val_if_fail (pixbuf && GDK_IS_PIXBUF (pixbuf), NULL);
+
+ shadow_r = GL_COLOR_F_RED (shadow_color) * 255.0;
+ shadow_g = GL_COLOR_F_GREEN (shadow_color) * 255.0;
+ shadow_b = GL_COLOR_F_BLUE (shadow_color) * 255.0;
+
+ /* extract pixels and parameters from source pixbuf. */
+ buf_src = gdk_pixbuf_get_pixels (pixbuf);
+ bits_per_sample = gdk_pixbuf_get_bits_per_sample (pixbuf);
+ channels = gdk_pixbuf_get_n_channels (pixbuf);
+ src_has_alpha = gdk_pixbuf_get_has_alpha (pixbuf);
+ width = gdk_pixbuf_get_width (pixbuf);
+ height = gdk_pixbuf_get_height (pixbuf);
+ src_rowstride = gdk_pixbuf_get_rowstride (pixbuf);
+
+ /* validate assumptions about source pixbuf. */
+ g_return_val_if_fail (buf_src, NULL);
+ g_return_val_if_fail (bits_per_sample == 8, NULL);
+ g_return_val_if_fail ((channels >= 3) && (channels <= 4), NULL);
+ g_return_val_if_fail (width > 0, NULL);
+ g_return_val_if_fail (height > 0, NULL);
+ g_return_val_if_fail (src_rowstride > 0, NULL);
+
+ /* Allocate a destination pixbuf */
+ dest_pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, bits_per_sample, width, height);
+ dest_rowstride = gdk_pixbuf_get_rowstride (dest_pixbuf);
+ buf_dest = gdk_pixbuf_get_pixels (dest_pixbuf);
+ if (!buf_dest) {
+ return NULL;
+ }
+
+ /* Process pixels: set rgb components and composite alpha with shadow_opacity. */
+ p_src = buf_src;
+ p_dest = buf_dest;
+ for ( iy=0; iy < height; iy++ )
+ {
+
+ p_src = buf_src + iy*src_rowstride;
+ p_dest = buf_dest + iy*dest_rowstride;
+
+ for ( ix=0; ix < width; ix++ )
+ {
+
+ p_src += 3; /* skip RGB */
+
+ *p_dest++ = shadow_r;
+ *p_dest++ = shadow_g;
+ *p_dest++ = shadow_b;
+
+ if ( src_has_alpha )
+ {
+ *p_dest++ = *p_src++ * shadow_opacity;
+ }
+ else
+ {
+ *p_dest++ = shadow_opacity * 255.0;
+ }
+
+
+ }
+
+ }
+
+ return dest_pixbuf;
+}
+
+
+
+
+/*
+ * Local Variables: -- emacs
+ * mode: C -- emacs
+ * c-basic-offset: 8 -- emacs
+ * tab-width: 8 -- emacs
+ * indent-tabs-mode: nil -- emacs
+ * End: -- emacs
+ */
--- /dev/null
+/*
+ * pixbuf-util.h
+ * Copyright (C) 2010 Jim Evins <evins@snaught.com>.
+ *
+ * This file is part of gLabels.
+ *
+ * gLabels is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * gLabels is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with gLabels. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __PIXBUF_UTIL_H__
+#define __PIXBUF_UTIL_H__
+
+#include <glib.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+
+G_BEGIN_DECLS
+
+
+GdkPixbuf *gl_pixbuf_util_create_shadow_pixbuf (const GdkPixbuf *pixbuf,
+ guint shadow_color,
+ gdouble shadow_opacity);
+
+
+G_END_DECLS
+
+#endif /* __PIXBUF_UTIL_H__ */
+
+
+
+
+/*
+ * Local Variables: -- emacs
+ * mode: C -- emacs
+ * c-basic-offset: 8 -- emacs
+ * tab-width: 8 -- emacs
+ * indent-tabs-mode: nil -- emacs
+ * End: -- emacs
+ */
projects / glabels / commitdiff