#define HANDLE_OUTLINE_RGBA_ARGS 0.5, 0.5, 0.5, 0.75
#define HANDLE_OUTLINE_WIDTH_PIXELS 2.0
+#define SELECTION_SLOP_PIXELS 4.0
+
/*========================================================*/
/* Private types. */
glLabelBarcodeStyle *style;
glColorNode *color_node;
+ /* Cached info. Only regenerate when text_node,
+ * style, or raw size changed */
+ lglBarcode *display_gbc;
+ gdouble w, h;
+
};
static void copy (glLabelObject *dst_object,
glLabelObject *src_object);
+static void update_barcode (glLabelBarcode *lbc);
+
+static void set_size (glLabelObject *object,
+ gdouble w,
+ gdouble h,
+ gboolean checkpoint);
+
static void get_size (glLabelObject *object,
gdouble *w,
gdouble *h);
static void draw_handles (glLabelObject *object,
cairo_t *cr);
+static void create_alt_msg_path (cairo_t *cr,
+ gchar *text);
+
/*****************************************************************************/
/* Boilerplate object stuff. */
/*****************************************************************************/
-G_DEFINE_TYPE (glLabelBarcode, gl_label_barcode, GL_TYPE_LABEL_OBJECT);
+G_DEFINE_TYPE (glLabelBarcode, gl_label_barcode, GL_TYPE_LABEL_OBJECT)
static void
gl_label_barcode_parent_class = g_type_class_peek_parent (class);
label_object_class->copy = copy;
+ label_object_class->set_size = set_size;
label_object_class->get_size = get_size;
label_object_class->set_line_color = set_line_color;
label_object_class->get_line_color = get_line_color;
gl_text_node_free (&lbc->priv->text_node);
gl_label_barcode_style_free (lbc->priv->style);
gl_color_node_free (&(lbc->priv->color_node));
+ lgl_barcode_free (lbc->priv->display_gbc);
g_free (lbc->priv);
G_OBJECT_CLASS (gl_label_barcode_parent_class)->finalize (object);
style->checksum_flag = gl_barcode_backends_style_can_csum (style->backend_id, style->id);
style->format_digits = gl_barcode_backends_style_get_prefered_n (style->backend_id, style->id);
lbc->priv->style = style;
+ update_barcode (lbc);
line_color_node = gl_color_node_new_default ();
line_color_node->color = gl_label_get_default_line_color(label);
style = gl_label_barcode_get_style (lbc);
color_node = get_line_color (src_object);
- gl_label_barcode_set_data (new_lbc, text_node, FALSE);
- gl_label_barcode_set_style (new_lbc, style, FALSE);
- set_line_color (dst_object, color_node, FALSE);
+ new_lbc->priv->text_node = text_node;
+ new_lbc->priv->style = style;
+ new_lbc->priv->color_node = color_node;
- gl_color_node_free (&color_node);
- gl_text_node_free (&text_node);
+ update_barcode (new_lbc);
gl_debug (DEBUG_LABEL, "END");
}
gl_text_node_free (&lbc->priv->text_node);
lbc->priv->text_node = gl_text_node_dup (text_node);
+ update_barcode (lbc);
+
gl_label_object_emit_changed (GL_LABEL_OBJECT(lbc));
}
gl_label_barcode_style_free (lbc->priv->style);
lbc->priv->style = gl_label_barcode_style_dup (style);
+ update_barcode (lbc);
+
gl_label_object_emit_changed (GL_LABEL_OBJECT(lbc));
}
/*---------------------------------------------------------------------------*/
-/* PRIVATE. Get object size method. */
+/* PRIVATE. Update cached lglBarcode. */
/*---------------------------------------------------------------------------*/
static void
-get_size (glLabelObject *object,
- gdouble *w,
- gdouble *h)
+update_barcode (glLabelBarcode *lbc)
{
- glLabelBarcode *lbc = (glLabelBarcode *)object;
+ gdouble w_raw, h_raw;
gchar *data;
- gdouble w_parent, h_parent;
- lglBarcode *gbc;
gl_debug (DEBUG_LABEL, "START");
g_return_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc));
- gl_label_object_get_raw_size (object, &w_parent, &h_parent);
+ gl_label_object_get_raw_size (GL_LABEL_OBJECT (lbc), &w_raw, &h_raw);
+
+ lgl_barcode_free (lbc->priv->display_gbc);
- if (lbc->priv->text_node->field_flag) {
+ if (lbc->priv->text_node->field_flag)
+ {
data = gl_barcode_backends_style_default_digits (lbc->priv->style->backend_id,
lbc->priv->style->id,
lbc->priv->style->format_digits);
- } else {
+ }
+ else
+ {
data = gl_text_node_expand (lbc->priv->text_node, NULL);
}
- gbc = gl_barcode_backends_new_barcode (lbc->priv->style->backend_id,
- lbc->priv->style->id,
- lbc->priv->style->text_flag,
- lbc->priv->style->checksum_flag,
- w_parent,
- h_parent,
- data);
+ lbc->priv->display_gbc = gl_barcode_backends_new_barcode (lbc->priv->style->backend_id,
+ lbc->priv->style->id,
+ lbc->priv->style->text_flag,
+ lbc->priv->style->checksum_flag,
+ w_raw,
+ h_raw,
+ data);
g_free (data);
- if ( gbc == NULL ) {
- /* Try again with default digits. */
+ if ( lbc->priv->display_gbc == NULL )
+ {
+ lglBarcode *gbc;
+
+ /* Try again with default digits, but don't save -- just extract size. */
data = gl_barcode_backends_style_default_digits (lbc->priv->style->backend_id,
lbc->priv->style->id,
lbc->priv->style->format_digits);
lbc->priv->style->id,
lbc->priv->style->text_flag,
lbc->priv->style->checksum_flag,
- w_parent,
- h_parent,
+ w_raw,
+ h_raw,
data);
g_free (data);
- }
- if ( gbc != NULL )
- {
- *w = gbc->width;
- *h = gbc->height;
+ if ( gbc != NULL )
+ {
+ lbc->priv->w = gbc->width;
+ lbc->priv->h = gbc->height;
+ }
+ else
+ {
+ /* If we still can't render, just set a default size. */
+ lbc->priv->w = 144;
+ lbc->priv->h = 72;
+ }
+
+ lgl_barcode_free (gbc);
}
else
{
- /* If we still can't render, just set a default size. */
- *w = 144;
- *h = 72;
+ lbc->priv->w = lbc->priv->display_gbc->width;
+ lbc->priv->h = lbc->priv->display_gbc->height;
}
- lgl_barcode_free (gbc);
+ gl_debug (DEBUG_LABEL, "END");
+}
+
+
+/*---------------------------------------------------------------------------*/
+/* PRIVATE. Set object size method. */
+/*---------------------------------------------------------------------------*/
+static void
+set_size (glLabelObject *object,
+ gdouble w,
+ gdouble h,
+ gboolean checkpoint)
+{
+ gl_debug (DEBUG_LABEL, "START");
+
+ g_return_if_fail (object && GL_IS_LABEL_BARCODE (object));
+
+ gl_label_object_set_raw_size (object, w, h, checkpoint);
+ update_barcode (GL_LABEL_BARCODE (object));
+
+ gl_debug (DEBUG_LABEL, "END");
+}
+
+
+/*---------------------------------------------------------------------------*/
+/* PRIVATE. Get object size method. */
+/*---------------------------------------------------------------------------*/
+static void
+get_size (glLabelObject *object,
+ gdouble *w,
+ gdouble *h)
+{
+ gl_debug (DEBUG_LABEL, "START");
+
+ g_return_if_fail (object && GL_IS_LABEL_BARCODE (object));
+
+ *w = GL_LABEL_BARCODE (object)->priv->w;
+ *h = GL_LABEL_BARCODE (object)->priv->h;
gl_debug (DEBUG_LABEL, "END");
}
gboolean screen_flag,
glMergeRecord *record)
{
+ glLabelBarcode *lbc = (glLabelBarcode *)object;
gdouble x0, y0;
cairo_matrix_t matrix;
lglBarcode *gbc;
- PangoLayout *layout;
- PangoFontDescription *desc;
gchar *text;
glTextNode *text_node;
glLabelBarcodeStyle *style;
color = GL_COLOR_MERGE_DEFAULT;
}
- gl_label_object_get_size (object, &w, &h);
-
- text = gl_text_node_expand (text_node, record);
- if (text_node->field_flag && screen_flag) {
- text = gl_barcode_backends_style_default_digits (style->backend_id, style->id, style->format_digits);
- }
+ cairo_set_source_rgba (cr, GL_COLOR_RGBA_ARGS (color));
- gbc = gl_barcode_backends_new_barcode (style->backend_id, style->id, style->text_flag, style->checksum_flag, w, h, text);
+ if (text_node->field_flag && !screen_flag) {
- cairo_set_source_rgba (cr, GL_COLOR_RGBA_ARGS (color));
+ gl_label_object_get_raw_size (object, &w, &h);
- if (gbc == NULL) {
+ text = gl_text_node_expand (text_node, record);
+ gbc = gl_barcode_backends_new_barcode (style->backend_id, style->id, style->text_flag, style->checksum_flag, w, h, text);
+ g_free (text);
- layout = pango_cairo_create_layout (cr);
+ if ( gbc != NULL )
+ {
+ lgl_barcode_render_to_cairo (gbc, cr);
+ lgl_barcode_free (gbc);
+ }
- desc = pango_font_description_new ();
- pango_font_description_set_family (desc, GL_BARCODE_FONT_FAMILY);
- pango_font_description_set_size (desc, 12 * PANGO_SCALE * FONT_SCALE);
- pango_layout_set_font_description (layout, desc);
- pango_font_description_free (desc);
+ }
+ else
+ {
- if (text == NULL || *text == '\0')
+ if (lbc->priv->display_gbc == NULL)
{
- pango_layout_set_text (layout, _("Barcode data empty"), -1);
+ create_alt_msg_path (cr, text_node->data);
+ cairo_fill (cr);
}
else
{
- pango_layout_set_text (layout, _("Invalid barcode data"), -1);
+ lgl_barcode_render_to_cairo (lbc->priv->display_gbc, cr);
}
- cairo_move_to (cr, 0, 0);
- pango_cairo_show_layout (cr, layout);
-
- g_object_unref (layout);
-
- } else {
-
- lgl_barcode_render_to_cairo (gbc, cr);
-
- lgl_barcode_free (gbc);
-
}
- g_free (text);
gl_text_node_free (&text_node);
gl_label_barcode_style_free (style);
gl_color_node_free (&color_node);
gdouble x,
gdouble y)
{
+ glLabelBarcode *lbc = (glLabelBarcode *)object;
gdouble w, h;
- lglBarcode *gbc;
- glLabelBarcodeStyle *style;
glTextNode *text_node;
- gchar *text;
+ gdouble scale_x, scale_y;
gl_label_object_get_size (object, &w, &h);
if ( (x >= 0) && (x <= w) && (y >= 0) && (y <= h) )
{
- style = gl_label_barcode_get_style (GL_LABEL_BARCODE (object));
text_node = gl_label_barcode_get_data(GL_LABEL_BARCODE(object));
- text = gl_text_node_expand (text_node, NULL);
- if (text_node->field_flag) {
- text = gl_barcode_backends_style_default_digits (style->backend_id, style->id, style->format_digits);
+
+ if ( lbc->priv->display_gbc == NULL )
+ {
+ create_alt_msg_path (cr, text_node->data);
}
- gbc = gl_barcode_backends_new_barcode (style->backend_id,
- style->id,
- style->text_flag,
- style->checksum_flag,
- w, h,
- text);
- if ( gbc )
+ else
{
- lgl_barcode_render_to_cairo_path (gbc, cr);
- lgl_barcode_free (gbc);
+ lgl_barcode_render_to_cairo_path (lbc->priv->display_gbc, cr);
}
if (cairo_in_fill (cr, x, y))
return TRUE;
}
- }
- if (gl_label_object_is_selected (object))
- {
- cairo_new_path (cr);
- cairo_rectangle (cr, 0, 0, w, h);
+ scale_x = 1.0;
+ scale_y = 1.0;
+ cairo_device_to_user_distance (cr, &scale_x, &scale_y);
+
+ cairo_set_line_width (cr, 2*SELECTION_SLOP_PIXELS*scale_x);
+
if (cairo_in_stroke (cr, x, y))
{
return TRUE;
}
+
+
+ if (gl_label_object_is_selected (object))
+ {
+ cairo_new_path (cr);
+ cairo_rectangle (cr, 0, 0, w, h);
+
+ scale_x = 1.0;
+ scale_y = 1.0;
+ cairo_device_to_user_distance (cr, &scale_x, &scale_y);
+
+ cairo_set_line_width (cr, (HANDLE_OUTLINE_WIDTH_PIXELS + 2*SELECTION_SLOP_PIXELS)*scale_x);
+
+ if (cairo_in_stroke (cr, x, y))
+ {
+ return TRUE;
+ }
+ }
+
}
return FALSE;
}
+/*****************************************************************************/
+/* Create a cairo path with apropos message. */
+/*****************************************************************************/
+static void
+create_alt_msg_path (cairo_t *cr,
+ gchar *text)
+{
+ PangoLayout *layout;
+ PangoFontDescription *desc;
+
+ layout = pango_cairo_create_layout (cr);
+
+ desc = pango_font_description_new ();
+ pango_font_description_set_family (desc, GL_BARCODE_FONT_FAMILY);
+ pango_font_description_set_size (desc, 12 * PANGO_SCALE * FONT_SCALE);
+ pango_layout_set_font_description (layout, desc);
+ pango_font_description_free (desc);
+
+ if (text == NULL || *text == '\0')
+ {
+ pango_layout_set_text (layout, _("Barcode data empty"), -1);
+ }
+ else
+ {
+ pango_layout_set_text (layout, _("Invalid barcode data"), -1);
+ }
+
+ cairo_move_to (cr, 0, 0);
+ pango_cairo_layout_path (cr, layout);
+
+ g_object_unref (layout);
+}
+
+
/*****************************************************************************/
/* Barcode style utilities. */
/*****************************************************************************/
projects / glabels / blobdiff