#include "atktext.h"
#include "atkmarshal.h"
+#include "atk-enum-types.h"
+
+#include <string.h>
+
+static GPtrArray *extra_attributes = NULL;
enum {
TEXT_CHANGED,
- CARET_MOVED,
+ TEXT_CARET_MOVED,
+ TEXT_SELECTION_CHANGED,
+ TEXT_ATTRIBUTES_CHANGED,
LAST_SIGNAL
};
-static const gchar * text_attr_name[] = {
- "left_margin",
- "right_margin",
- "indent",
- "invisible",
- "editable",
- "pixels_above_lines",
- "pixels_below_lines",
- "pixels_inside_wrap",
- "bg_full_height",
- "rise",
- "underline",
- "strikethrough",
- "size",
- "scale",
- "weight",
- "language",
- "family_name",
- "bg_color",
- "fg_color",
- "bg_stipple",
- "fg_stipple",
- "wrap_mode",
- "direction",
- "justification",
- "stretch",
- "variant",
- "slant_style",
-};
-
-static const gchar *bool[] = {"false",
- "true"};
-static const gchar *style[] = {"normal",
- "oblique",
- "italic"};
-static const gchar *variant[] = {"normal",
- "small_caps"};
-static const gchar *stretch[] = {"ultra_condensed",
- "extra_condensed",
- "condensed",
- "semi_condensed",
- "normal",
- "semi_expanded",
- "expanded",
- "extra_expanded",
- "ultra_expanded"};
-static const gchar *justification[] = {"left",
- "right",
- "center",
-
- "fill"};
-static const gchar *direction[] = {"none",
- "ltr",
- "rtl"};
-static const gchar *wrap_mode[] = {"none",
- "char",
- "word"};
-static const gchar *underline[] = {"none",
- "single",
- "double",
- "low"};
-
-struct _AtkTextIfaceClass
-{
- GObjectClass parent;
-};
-
-typedef struct _AtkTextIfaceClass AtkTextIfaceClass;
-
-static void atk_text_base_init (gpointer *g_class);
+static const gchar * const bool[] = {"false",
+ "true"};
+static const gchar * const style[] = {"normal",
+ "oblique",
+ "italic"};
+static const gchar * const variant[] = {"normal",
+ "small_caps"};
+static const gchar * const stretch[] = {"ultra_condensed",
+ "extra_condensed",
+ "condensed",
+ "semi_condensed",
+ "normal",
+ "semi_expanded",
+ "expanded",
+ "extra_expanded",
+ "ultra_expanded"};
+static const gchar * const justification[] = {"left",
+ "right",
+ "center",
+ "fill"};
+static const gchar * const direction[] = {"none",
+ "ltr",
+ "rtl"};
+static const gchar * const wrap_mode[] = {"none",
+ "char",
+ "word"};
+static const gchar * const underline[] = {"none",
+ "single",
+ "double",
+ "low"};
+
+static void atk_text_base_init (AtkTextIface *class);
+
+static void atk_text_real_get_range_extents (AtkText *text,
+ gint start_offset,
+ gint end_offset,
+ AtkCoordType coord_type,
+ AtkTextRectangle *rect);
+
+static AtkTextRange** atk_text_real_get_bounded_ranges (AtkText *text,
+ AtkTextRectangle *rect,
+ AtkCoordType coord_type,
+ AtkTextClipType x_clip_type,
+ AtkTextClipType y_clip_type);
static guint atk_text_signals[LAST_SIGNAL] = { 0 };
GType
-atk_text_get_type ()
+atk_text_get_type (void)
{
static GType type = 0;
}
static void
-atk_text_base_init (gpointer *g_class)
+atk_text_base_init (AtkTextIface *class)
{
static gboolean initialized = FALSE;
* Note that text_changed signal supports details "insert", "delete",
* possibly "replace".
*/
-
+
+ class->get_range_extents = atk_text_real_get_range_extents;
+ class->get_bounded_ranges = atk_text_real_get_bounded_ranges;
+
atk_text_signals[TEXT_CHANGED] =
g_signal_new ("text_changed",
ATK_TYPE_TEXT,
G_TYPE_NONE,
2, G_TYPE_INT, G_TYPE_INT);
- atk_text_signals[CARET_MOVED] =
+ atk_text_signals[TEXT_CARET_MOVED] =
g_signal_new ("text_caret_moved",
ATK_TYPE_TEXT,
G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (AtkTextIface, caret_changed),
+ G_STRUCT_OFFSET (AtkTextIface, text_caret_moved),
(GSignalAccumulator) NULL, NULL,
g_cclosure_marshal_VOID__INT,
G_TYPE_NONE,
1, G_TYPE_INT);
+ atk_text_signals[TEXT_SELECTION_CHANGED] =
+ g_signal_new ("text_selection_changed",
+ ATK_TYPE_TEXT,
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (AtkTextIface, text_selection_changed),
+ (GSignalAccumulator) NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+ atk_text_signals[TEXT_ATTRIBUTES_CHANGED] =
+ g_signal_new ("text_attributes_changed",
+ ATK_TYPE_TEXT,
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (AtkTextIface, text_attributes_changed),
+ (GSignalAccumulator) NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
initialized = TRUE;
}
iface = ATK_TEXT_GET_IFACE (text);
+ if (start_offset < 0 || end_offset < -1)
+ return NULL;
+
if (iface->get_text)
return (*(iface->get_text)) (text, start_offset, end_offset);
else
g_return_val_if_fail (ATK_IS_TEXT (text), (gunichar) 0);
+ if (offset < 0)
+ return (gunichar) 0;
+
iface = ATK_TEXT_GET_IFACE (text);
if (iface->get_character_at_offset)
* @text: an #AtkText
* @offset: position
* @boundary_type: An #AtkTextBoundary
- * @start_offset: the start offset of the returned string.
- * @end_offset: the end offset of the returned string.
+ * @start_offset: the start offset of the returned string
+ * @end_offset: the offset of the first character after the
+ * returned substring
*
* Gets the specified text.
- * If the boundary type is ATK_TEXT_BOUNDARY_WORD_START or
- * ATK_TEXT_BOUNDARY_WORD_END part of a word may be returned.
- * If the boundary type is ATK_TEXT_BOUNDARY_SENTENCE_START the start point
- * will be the offset and will continue to the start of the next sentence.
- * The first word may not be a complete word. Similarly for
- * ATK_TEXT_BOUNDARY_SENTENCE_END, ATK_TEXT_BOUNDARY_LINE_START and
- * ATK_TEXT_BOUNDARY_LINE_END
- *
- * Returns: the text after @offset up to the specified @boundary_type.
+ *
+ * If the boundary_type if ATK_TEXT_BOUNDARY_CHAR the character after the
+ * offset is returned.
+ *
+ * If the boundary_type is ATK_TEXT_BOUNDARY_WORD_START the returned string
+ * is from the word start after the offset to the next word start.
+ *
+ * The returned string will contain the word after the offset if the offset
+ * is inside a word or if the offset is not inside a word.
+ *
+ * If the boundary_type is ATK_TEXT_BOUNDARY_WORD_END the returned string
+ * is from the word end at or after the offset to the next work end.
+ *
+ * The returned string will contain the word after the offset if the offset
+ * is inside a word and will contain the word after the word after the offset
+ * if the offset is not inside a word.
+ *
+ * If the boundary type is ATK_TEXT_BOUNDARY_SENTENCE_START the returned
+ * string is from the sentence start after the offset to the next sentence
+ * start.
+ *
+ * The returned string will contain the sentence after the offset if the offset
+ * is inside a sentence or if the offset is not inside a sentence.
+ *
+ * If the boundary_type is ATK_TEXT_BOUNDARY_SENTENCE_END the returned string
+ * is from the sentence end at or after the offset to the next sentence end.
+ *
+ * The returned string will contain the sentence after the offset if the offset
+ * is inside a sentence and will contain the sentence after the sentence
+ * after the offset if the offset is not inside a sentence.
+ *
+ * If the boundary type is ATK_TEXT_BOUNDARY_LINE_START the returned
+ * string is from the line start after the offset to the next line start.
+ *
+ * If the boundary_type is ATK_TEXT_BOUNDARY_LINE_END the returned string
+ * is from the line end at or after the offset to the next line start.
+ *
+ * Returns: the text after @offset bounded by the specified @boundary_type.
**/
gchar*
atk_text_get_text_after_offset (AtkText *text,
else
real_end_offset = &local_end_offset;
+ if (offset < 0)
+ return NULL;
+
iface = ATK_TEXT_GET_IFACE (text);
if (iface->get_text_after_offset)
* @text: an #AtkText
* @offset: position
* @boundary_type: An #AtkTextBoundary
- * @start_offset: the start offset of the returned string.
- * @end_offset: the end offset of the returned string.
+ * @start_offset: the start offset of the returned string
+ * @end_offset: the offset of the first character after the
+ * returned substring
*
* Gets the specified text.
- * If the boundary_type is ATK_TEXT_BOUNDARY_WORD_START or
- * ATK_TEXT_BOUNDARY_WORD_END a complete word is returned;
- * if the boundary type is ATK_TEXT_BOUNDARY_SENTENCE_START or
- * ATK_TEXT_BOUNDARY_SENTENCE_END a complete sentence
- * is returned; if the boundary type is ATK_TEXT_BOUNDARY_LINE_START or
- * ATK_TEXT_BOUNDARY_LINE_END a complete line is returned.
- *
- * Returns: the text at @offset up to the specified @boundary_type.
+ *
+ * If the boundary_type if ATK_TEXT_BOUNDARY_CHAR the character at the
+ * offset is returned.
+ *
+ * If the boundary_type is ATK_TEXT_BOUNDARY_WORD_START the returned string
+ * is from the word start at or before the offset to the word start after
+ * the offset.
+ *
+ * The returned string will contain the word at the offset if the offset
+ * is inside a word and will contain the word before the offset if the
+ * offset is not inside a word.
+ *
+ * If the boundary_type is ATK_TEXT_BOUNDARY_WORD_END the returned string
+ * is from the word end before the offset to the word end at or after the
+ * offset.
+ *
+ * The returned string will contain the word at the offset if the offset
+ * is inside a word and will contain the word after to the offset if the
+ * offset is not inside a word.
+ *
+ * If the boundary type is ATK_TEXT_BOUNDARY_SENTENCE_START the returned
+ * string is from the sentence start at or before the offset to the sentence
+ * start after the offset.
+ *
+ * The returned string will contain the sentence at the offset if the offset
+ * is inside a sentence and will contain the sentence before the offset
+ * if the offset is not inside a sentence.
+ *
+ * If the boundary_type is ATK_TEXT_BOUNDARY_SENTENCE_END the returned string
+ * is from the sentence end before the offset to the sentence end at or
+ * after the offset.
+ *
+ * The returned string will contain the sentence at the offset if the offset
+ * is inside a sentence and will contain the sentence after the offset
+ * if the offset is not inside a sentence.
+ *
+ * If the boundary type is ATK_TEXT_BOUNDARY_LINE_START the returned
+ * string is from the line start at or before the offset to the line
+ * start after the offset.
+ *
+ * If the boundary_type is ATK_TEXT_BOUNDARY_LINE_END the returned string
+ * is from the line end before the offset to the line end at or after
+ * the offset.
+ *
+ * Returns: the text at @offset bounded by the specified @boundary_type.
**/
gchar*
atk_text_get_text_at_offset (AtkText *text,
else
real_end_offset = &local_end_offset;
+ if (offset < 0)
+ return NULL;
+
iface = ATK_TEXT_GET_IFACE (text);
if (iface->get_text_at_offset)
* @text: an #AtkText
* @offset: position
* @boundary_type: An #AtkTextBoundary
- * @start_offset: the start offset of the returned string.
- * @end_offset: the end offset of the returned string.
+ * @start_offset: the start offset of the returned string
+ * @end_offset: the offset of the first character after the
+ * returned substring
*
* Gets the specified text.
- * If the boundary type is ATK_TEXT_BOUNDARY_WORD_START or
- * ATK_TEXT_BOUNDARY_WORD_END part of a word may be returned.
- * If the boundary type is ATK_TEXT_BOUNDARY_SENTENCE_START the start point
- * will be at the start of the sentence, and will continue to the offset.
- * The last word may not be a complete word. Similarly for
- * ATK_TEXT_BOUNDARY_SENTENCE_END, ATK_TEXT_BOUNDARY_LINE_START and
- * ATK_TEXT_BOUNDARY_LINE_END
- *
- * Returns: the text before @offset starting from the specified @boundary_type.
+ *
+ * If the boundary_type if ATK_TEXT_BOUNDARY_CHAR the character before the
+ * offset is returned.
+ *
+ * If the boundary_type is ATK_TEXT_BOUNDARY_WORD_START the returned string
+ * is from the word start before the word start before the offset to
+ * the word start before the offset.
+ *
+ * The returned string will contain the word before the offset if the offset
+ * is inside a word and will contain the word before the word before the
+ * offset if the offset is not inside a word.
+ *
+ * If the boundary_type is ATK_TEXT_BOUNDARY_WORD_END the returned string
+ * is from the word end before the word end at or before the offset to the
+ * word end at or before the offset.
+ *
+ * The returned string will contain the word before the offset if the offset
+ * is inside a word or if the offset is not inside a word.
+ *
+ * If the boundary type is ATK_TEXT_BOUNDARY_SENTENCE_START the returned
+ * string is from the sentence start before the sentence start before
+ * the offset to the sentence start before the offset.
+ *
+ * The returned string will contain the sentence before the offset if the
+ * offset is inside a sentence and will contain the sentence before the
+ * sentence before the offset if the offset is not inside a sentence.
+ *
+ * If the boundary_type is ATK_TEXT_BOUNDARY_SENTENCE_END the returned string
+ * is from the sentence end before the sentence end at or before the offset to
+ * the sentence end at or before the offset.
+ *
+ * The returned string will contain the sentence before the offset if the
+ * offset is inside a sentence or if the offset is not inside a sentence.
+ *
+ * If the boundary type is ATK_TEXT_BOUNDARY_LINE_START the returned
+ * string is from the line start before the line start ar or before the offset
+ * to the line start ar or before the offset.
+ *
+ * If the boundary_type is ATK_TEXT_BOUNDARY_LINE_END the returned string
+ * is from the line end before the line end before the offset to the
+ * line end before the offset.
+ *
+ * Returns: the text before @offset bounded by the specified @boundary_type.
**/
gchar*
atk_text_get_text_before_offset (AtkText *text,
else
real_end_offset = &local_end_offset;
+ if (offset < 0)
+ return NULL;
+
iface = ATK_TEXT_GET_IFACE (text);
if (iface->get_text_before_offset)
{
AtkTextIface *iface;
- g_return_val_if_fail (ATK_IS_TEXT (text), -1);
+ g_return_val_if_fail (ATK_IS_TEXT (text), 0);
iface = ATK_TEXT_GET_IFACE (text);
if (iface->get_caret_offset)
return (*(iface->get_caret_offset)) (text);
else
- return -1;
+ return 0;
}
/**
* atk_text_get_character_extents:
* @text: an #AtkText
- * @offset: position
- * @x: x-position of character
- * @y: y-position of character
- * @width: width of character
- * @height: height of character
+ * @offset: The offset of the text character for which bounding information is required.
+ * @x: Pointer for the x cordinate of the bounding box
+ * @y: Pointer for the y cordinate of the bounding box
+ * @width: Pointer for the width of the bounding box
+ * @height: Pointer for the height of the bounding box
* @coords: specify whether coordinates are relative to the screen or widget window
*
- * Given an @offset, the @x, @y, @width, and @height values are filled
- * appropriately.
+ * Get the bounding box containing the glyph representing the character at
+ * a particular text offset.
**/
void
atk_text_get_character_extents (AtkText *text,
else
real_height = &local_height;
+ *real_x = 0;
+ *real_y = 0;
+ *real_width = 0;
+ *real_height = 0;
+
+ if (offset < 0)
+ return;
+
iface = ATK_TEXT_GET_IFACE (text);
if (iface->get_character_extents)
(*(iface->get_character_extents)) (text, offset, real_x, real_y, real_width, real_height, coords);
- else
+
+ if (*real_width <0)
{
- *real_x = 0;
- *real_y = 0;
- *real_width = 0;
- *real_height = 0;
+ *real_x = *real_x + *real_width;
+ *real_width *= -1;
}
}
*Creates an #AtkAttributeSet which consists of the attributes explicitly
*set at the position @offset in the text. @start_offset and @end_offset are
*set to the start and end of the range around @offset where the attributes are
- *invariant. See the enum AtkTextAttribute for types of text attributes that
- *can be returned. Note that other attributes may also be returned.
+ *invariant. Note that @end_offset is the offset of the first character
+ *after the range. See the enum AtkTextAttribute for types of text
+ *attributes that can be returned. Note that other attributes may also be
+ *returned.
*
*Returns: an #AtkAttributeSet which contains the attributes explicitly set
*at @offset. This #AtkAttributeSet should be freed by a call to
else
real_end_offset = &local_end_offset;
+ if (offset < 0)
+ return NULL;
+
iface = ATK_TEXT_GET_IFACE (text);
if (iface->get_run_attributes)
* of the text region is assigned the number 0, etc. Note that adding,
* moving or deleting a selected region can change the numbering.
* @start_offset: passes back the start position of the selected region
- * @end_offset: passes back the end position of the selected region
+ * @end_offset: passes back the end position of (e.g. offset immediately past)
+ * the selected region
*
* Gets the text from the specified selection.
*
if (end_offset)
real_end_offset = end_offset;
else
- real_start_offset = &local_end_offset;
+ real_end_offset = &local_end_offset;
iface = ATK_TEXT_GET_IFACE (text);
* atk_text_add_selection:
* @text: an #AtkText
* @start_offset: the start position of the selected region
- * @end_offset: the end position of the selected region
+ * @end_offset: the offset of the first character after the selected region.
*
* Adds a selection bounded by the specified offsets.
*
* of the text region is assigned the number 0, etc. Note that adding,
* moving or deleting a selected region can change the numbering.
* @start_offset: the new start position of the selection
- * @end_offset: the new end position of the selection
+ * @end_offset: the new end position of (e.g. offset immediately past)
+ * the selection
*
* Changes the start and end offset of the specified selection.
*
}
/**
+ * atk_text_get_range_extents:
+ * @text: an #AtkText
+ * @start_offset: The offset of the first text character for which boundary
+ * information is required.
+ * @end_offset: The offset of the text character after the last character
+ * for which boundary information is required.
+ * @coord_type: Specify whether coordinates are relative to the screen or widget window.
+ * @rect: A pointer to a AtkTextRectangle which is filled in by this function.
+ *
+ * Get the bounding box for text within the specified range.
+ **/
+void
+atk_text_get_range_extents (AtkText *text,
+ gint start_offset,
+ gint end_offset,
+ AtkCoordType coord_type,
+ AtkTextRectangle *rect)
+{
+ AtkTextIface *iface;
+
+ g_return_if_fail (ATK_IS_TEXT (text));
+ g_return_if_fail (rect);
+
+ if (start_offset < 0 || start_offset >= end_offset)
+ return;
+
+ iface = ATK_TEXT_GET_IFACE (text);
+
+ if (iface->get_range_extents)
+ (*(iface->get_range_extents)) (text, start_offset, end_offset, coord_type, rect);
+}
+
+/**
+ * atk_text_get_bounded_ranges:
+ * @text: an #AtkText
+ * @rect: An AtkTextRectagle giving the dimensions of the bounding box.
+ * @coord_type: Specify whether coordinates are relative to the screen or widget window.
+ * @x_clip_type: Specify the horizontal clip type.
+ * @y_clip_type: Specify the vertical clip type.
+ *
+ * Get the ranges of text in the specified bounding box.
+ *
+ * Returns: Array of AtkTextRange. The last element of the array returned
+ * by this function will be NULL.
+ **/
+AtkTextRange**
+atk_text_get_bounded_ranges (AtkText *text,
+ AtkTextRectangle *rect,
+ AtkCoordType coord_type,
+ AtkTextClipType x_clip_type,
+ AtkTextClipType y_clip_type)
+{
+ AtkTextIface *iface;
+
+ g_return_val_if_fail (ATK_IS_TEXT (text), NULL);
+ g_return_val_if_fail (rect, NULL);
+
+ iface = ATK_TEXT_GET_IFACE (text);
+
+ if (iface->get_bounded_ranges)
+ return (*(iface->get_bounded_ranges)) (text, rect, coord_type, x_clip_type, y_clip_type);
+ else
+ return NULL;
+}
+
+/**
* atk_attribute_set_free:
* @attrib_set: The #AtkAttributeSet to free
*
* #AtkAttributes.
**/
void
-atk_attribute_set_free(AtkAttributeSet *attrib_set)
+atk_attribute_set_free (AtkAttributeSet *attrib_set)
{
GSList *temp;
}
/**
- * atk_attribute_get_name:
+ * atk_text_attribute_register:
+ * @name: a name string
+ *
+ * Associate @name with a new #AtkTextAttribute
+ *
+ * Returns: an #AtkTextAttribute associated with @name
+ **/
+AtkTextAttribute
+atk_text_attribute_register (const gchar *name)
+{
+ g_return_val_if_fail (name, ATK_TEXT_ATTR_INVALID);
+
+ if (!extra_attributes)
+ extra_attributes = g_ptr_array_new ();
+
+ g_ptr_array_add (extra_attributes, g_strdup (name));
+ return extra_attributes->len + ATK_TEXT_ATTR_LAST_DEFINED;
+}
+
+/**
+ * atk_text_attribute_get_name:
* @attr: The #AtkTextAttribute whose name is required
*
- * Returns the name corresponding to the attr value.
+ * Gets the name corresponding to the #AtkTextAttribute
+ *
+ * Returns: a string containing the name; this string should not be freed
**/
G_CONST_RETURN gchar*
-atk_attribute_get_name (AtkTextAttribute attr)
+atk_text_attribute_get_name (AtkTextAttribute attr)
+{
+ GTypeClass *type_class;
+ GEnumValue *value;
+ gchar *name = NULL;
+
+ type_class = g_type_class_ref (ATK_TYPE_TEXT_ATTRIBUTE);
+ g_return_val_if_fail (G_IS_ENUM_CLASS (type_class), NULL);
+
+ value = g_enum_get_value (G_ENUM_CLASS (type_class), attr);
+
+ if (value)
+ {
+ name = value->value_nick;
+ }
+ else
+ {
+ if (extra_attributes)
+ {
+ gint n = attr;
+
+ n -= ATK_TEXT_ATTR_LAST_DEFINED + 1;
+
+ if (n < extra_attributes->len)
+
+ name = g_ptr_array_index (extra_attributes, n);
+ }
+ }
+ g_type_class_unref (type_class);
+ return name;
+}
+
+/**
+ * atk_text_attribute_for_name:
+ * @name: a string which is the (non-localized) name of an ATK text attribute.
+ *
+ * Get the #AtkTextAttribute type corresponding to a text attribute name.
+ *
+ * Returns: the #AtkTextAttribute enumerated type corresponding to the specified
+name,
+ * or #ATK_TEXT_ATTRIBUTE_INVALID if no matching text attribute is found.
+ **/
+AtkTextAttribute
+atk_text_attribute_for_name (const gchar *name)
{
- g_assert (attr >= 0 && attr <= ATK_TEXT_ATTR_STYLE);
- return text_attr_name[attr];
+ GTypeClass *type_class;
+ GEnumValue *value;
+ AtkTextAttribute type = ATK_TEXT_ATTR_INVALID;
+
+ g_return_val_if_fail (name, ATK_TEXT_ATTR_INVALID);
+
+ type_class = g_type_class_ref (ATK_TYPE_TEXT_ATTRIBUTE);
+ g_return_val_if_fail (G_IS_ENUM_CLASS (type_class), ATK_TEXT_ATTR_INVALID);
+
+ value = g_enum_get_value_by_nick (G_ENUM_CLASS (type_class), name);
+
+ if (value)
+ {
+ type = value->value;
+ }
+ else
+ {
+ gint i;
+
+ if (extra_attributes)
+ {
+ for (i = 0; i < extra_attributes->len; i++)
+ {
+ gchar *extra_attribute = (gchar *)g_ptr_array_index (extra_attributes, i);
+
+ g_return_val_if_fail (extra_attribute, ATK_TEXT_ATTR_INVALID);
+
+ if (strcmp (name, extra_attribute) == 0)
+ {
+ type = i + 1 + ATK_TEXT_ATTR_LAST_DEFINED;
+ break;
+ }
+ }
+ }
+ }
+ g_type_class_unref (type_class);
+
+ return type;
}
/**
- * atk_attribute_get_value:
+ * atk_text_attribute_get_value:
* @attr: The #AtkTextAttribute for which a value is required
- * @index: The index of the required value
+ * @index_: The index of the required value
+ *
+ * Gets the value for the index of the #AtkTextAttribute
*
- * Returns the value corresponding to the attr value and index.
+ * Returns: a string containing the value; this string should not be freed;
* NULL is returned if there are no values maintained for the attr value.
**/
G_CONST_RETURN gchar*
-atk_attribute_get_value (AtkTextAttribute attr,
- gint index)
+atk_text_attribute_get_value (AtkTextAttribute attr,
+ gint index)
{
switch (attr)
{
return NULL;
}
}
+
+static void
+atk_text_rectangle_union (AtkTextRectangle *src1,
+ AtkTextRectangle *src2,
+ AtkTextRectangle *dest)
+{
+ gint dest_x, dest_y;
+
+ dest_x = MIN (src1->x, src2->x);
+ dest_y = MIN (src1->y, src2->y);
+ dest->width = MAX (src1->x + src1->width, src2->x + src2->width) - dest_x;
+ dest->height = MAX (src1->y + src1->height, src2->y + src2->height) - dest_y;
+ dest->x = dest_x;
+ dest->y = dest_y;
+}
+
+static gboolean
+atk_text_rectangle_contain (AtkTextRectangle *clip,
+ AtkTextRectangle *bounds,
+ AtkTextClipType x_clip_type,
+ AtkTextClipType y_clip_type)
+{
+ gboolean x_min_ok, x_max_ok, y_min_ok, y_max_ok;
+
+ x_min_ok = (bounds->x >= clip->x) ||
+ ((bounds->x + bounds->width >= clip->x) &&
+ ((x_clip_type == ATK_TEXT_CLIP_NONE) ||
+ (x_clip_type == ATK_TEXT_CLIP_MAX)));
+
+ x_max_ok = (bounds->x + bounds->width <= clip->x + clip->width) ||
+ ((bounds->x <= clip->x + clip->width) &&
+ ((x_clip_type == ATK_TEXT_CLIP_NONE) ||
+ (x_clip_type == ATK_TEXT_CLIP_MIN)));
+
+ y_min_ok = (bounds->y >= clip->y) ||
+ ((bounds->y + bounds->height >= clip->y) &&
+ ((y_clip_type == ATK_TEXT_CLIP_NONE) ||
+ (y_clip_type == ATK_TEXT_CLIP_MAX)));
+
+ y_max_ok = (bounds->y + bounds->height <= clip->y + clip->height) ||
+ ((bounds->y <= clip->y + clip->height) &&
+ ((y_clip_type == ATK_TEXT_CLIP_NONE) ||
+ (y_clip_type == ATK_TEXT_CLIP_MIN)));
+
+ return (x_min_ok && x_max_ok && y_min_ok && y_max_ok);
+
+}
+
+static void
+atk_text_real_get_range_extents (AtkText *text,
+ gint start_offset,
+ gint end_offset,
+ AtkCoordType coord_type,
+ AtkTextRectangle *rect)
+{
+ gint i;
+ AtkTextRectangle cbounds, bounds;
+
+ atk_text_get_character_extents (text, start_offset,
+ &bounds.x, &bounds.y,
+ &bounds.width, &bounds.height,
+ coord_type);
+
+ for (i = start_offset + 1; i < end_offset; i++)
+ {
+ atk_text_get_character_extents (text, i,
+ &cbounds.x, &cbounds.y,
+ &cbounds.width, &cbounds.height,
+ coord_type);
+ atk_text_rectangle_union (&bounds, &cbounds, &bounds);
+ }
+
+ rect->x = bounds.x;
+ rect->y = bounds.y;
+ rect->width = bounds.width;
+ rect->height = bounds.height;
+}
+
+static AtkTextRange**
+atk_text_real_get_bounded_ranges (AtkText *text,
+ AtkTextRectangle *rect,
+ AtkCoordType coord_type,
+ AtkTextClipType x_clip_type,
+ AtkTextClipType y_clip_type)
+{
+ gint bounds_min_offset, bounds_max_offset;
+ gint min_line_start, min_line_end;
+ gint max_line_start, max_line_end;
+ gchar *line;
+ gint curr_offset;
+ gint offset;
+ gint num_ranges = 0;
+ gint range_size = 1;
+ AtkTextRectangle cbounds;
+ AtkTextRange **range;
+
+ range = NULL;
+ bounds_min_offset = atk_text_get_offset_at_point (text, rect->x, rect->y, coord_type);
+ bounds_max_offset = atk_text_get_offset_at_point (text, rect->x + rect->width, rect->y + rect->height, coord_type);
+
+ if (bounds_min_offset == 0 &&
+ bounds_min_offset == bounds_max_offset)
+ return NULL;
+
+ line = atk_text_get_text_at_offset (text, bounds_min_offset,
+ ATK_TEXT_BOUNDARY_LINE_START,
+ &min_line_start, &min_line_end);
+ g_free (line);
+ line = atk_text_get_text_at_offset (text, bounds_max_offset,
+ ATK_TEXT_BOUNDARY_LINE_START,
+ &max_line_start, &max_line_end);
+ g_free (line);
+ bounds_min_offset = MIN (min_line_start, max_line_start);
+ bounds_max_offset = MAX (min_line_end, max_line_end);
+
+ curr_offset = bounds_min_offset;
+ while (curr_offset < bounds_max_offset)
+ {
+ offset = curr_offset;
+
+ while (curr_offset < bounds_max_offset)
+ {
+ atk_text_get_character_extents (text, curr_offset,
+ &cbounds.x, &cbounds.y,
+ &cbounds.width, &cbounds.height,
+ coord_type);
+ if (!atk_text_rectangle_contain (rect, &cbounds, x_clip_type, y_clip_type))
+ break;
+ curr_offset++;
+ }
+ if (curr_offset > offset)
+ {
+ AtkTextRange *one_range = g_new (AtkTextRange, 1);
+
+ one_range->start_offset = offset;
+ one_range->end_offset = curr_offset;
+ one_range->content = atk_text_get_text (text, offset, curr_offset);
+ atk_text_get_range_extents (text, offset, curr_offset, coord_type, &one_range->bounds);
+
+ if (num_ranges >= range_size - 1)
+ {
+ range_size *= 2;
+ range = g_realloc (range, range_size * sizeof (gpointer));
+ }
+ range[num_ranges] = one_range;
+ num_ranges++;
+ }
+ curr_offset++;
+ if (range)
+ range[num_ranges] = NULL;
+ }
+ return range;
+}
+
+/**
+ * atk_text_free_ranges:
+ * @ranges: A pointer to an array of #AtkTextRange which is to be freed.
+ *
+ * Frees the memory associated with an array of AtkTextRange. It is assumed
+ * that the array was returned by the function atk_text_get_bounded_ranges
+ * and is NULL terminated.
+ **/
+void
+atk_text_free_ranges (AtkTextRange **ranges)
+{
+ AtkTextRange **first = ranges;
+
+ if (ranges)
+ {
+ while (*ranges)
+ {
+ AtkTextRange *range;
+
+ range = *ranges;
+ *ranges++;
+ g_free (range->content);
+ g_free (range);
+ }
+ g_free (first);
+ }
+}
projects / platform / upstream / atk.git / blobdiff