#include "atktext.h"
#include "atkmarshal.h"
+#include "atk-enum-types.h"
+
+#include <string.h>
+
+GPtrArray *extra_attributes = NULL;
enum {
TEXT_CHANGED,
- CARET_MOVED,
+ TEXT_CARET_MOVED,
+ TEXT_SELECTION_CHANGED,
+ TEXT_ATTRIBUTES_CHANGED,
LAST_SIGNAL
};
-struct _AtkTextIfaceClass
-{
- GObjectClass parent;
-};
-
-typedef struct _AtkTextIfaceClass AtkTextIfaceClass;
+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"};
static void atk_text_base_init (gpointer *g_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
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;
}
gint end_offset)
{
AtkTextIface *iface;
-
- g_return_val_if_fail (text != NULL, NULL);
+
g_return_val_if_fail (ATK_IS_TEXT (text), NULL);
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
{
AtkTextIface *iface;
- g_return_val_if_fail (text != NULL, (gunichar) 0);
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
- * @startOffset: the start offset of the returned string.
- * @endOffset: the end offset of the returned string.
+ * @start_offset: the start offset of the returned string.
+ * @end_offset: the end offset of the returned string.
*
* 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,
gint offset,
AtkTextBoundary boundary_type,
- gint *startOffset,
- gint *endOffset)
+ gint *start_offset,
+ gint *end_offset)
{
AtkTextIface *iface;
+ gint local_start_offset, local_end_offset;
+ gint *real_start_offset, *real_end_offset;
- g_return_val_if_fail (text != NULL, NULL);
g_return_val_if_fail (ATK_IS_TEXT (text), NULL);
+ if (start_offset)
+ real_start_offset = start_offset;
+ else
+ real_start_offset = &local_start_offset;
+ if (end_offset)
+ real_end_offset = end_offset;
+ else
+ real_end_offset = &local_end_offset;
+
+ if (offset < 0)
+ return NULL;
+
iface = ATK_TEXT_GET_IFACE (text);
if (iface->get_text_after_offset)
- return (*(iface->get_text_after_offset)) (text, offset, boundary_type, startOffset, endOffset);
+ return (*(iface->get_text_after_offset)) (text, offset, boundary_type, real_start_offset, real_end_offset);
else
return NULL;
}
* @text: an #AtkText
* @offset: position
* @boundary_type: An #AtkTextBoundary
- * @startOffset: the start offset of the returned string.
- * @endOffset: the end offset of the returned string.
+ * @start_offset: the start offset of the returned string.
+ * @end_offset: the end offset of the returned string.
*
* 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,
gint offset,
AtkTextBoundary boundary_type,
- gint *startOffset,
- gint *endOffset)
+ gint *start_offset,
+ gint *end_offset)
{
AtkTextIface *iface;
+ gint local_start_offset, local_end_offset;
+ gint *real_start_offset, *real_end_offset;
- g_return_val_if_fail (text != NULL, NULL);
g_return_val_if_fail (ATK_IS_TEXT (text), NULL);
+ if (start_offset)
+ real_start_offset = start_offset;
+ else
+ real_start_offset = &local_start_offset;
+ if (end_offset)
+ real_end_offset = end_offset;
+ else
+ real_end_offset = &local_end_offset;
+
+ if (offset < 0)
+ return NULL;
+
iface = ATK_TEXT_GET_IFACE (text);
if (iface->get_text_at_offset)
- return (*(iface->get_text_at_offset)) (text, offset, boundary_type, startOffset, endOffset);
+ return (*(iface->get_text_at_offset)) (text, offset, boundary_type, real_start_offset, real_end_offset);
else
return NULL;
}
* @text: an #AtkText
* @offset: position
* @boundary_type: An #AtkTextBoundary
- * @startOffset: the start offset of the returned string.
- * @endOffset: the end offset of the returned string.
+ * @start_offset: the start offset of the returned string.
+ * @end_offset: the end offset of the returned string.
*
* 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,
gint offset,
AtkTextBoundary boundary_type,
- gint *startOffset,
- gint *endOffset)
+ gint *start_offset,
+ gint *end_offset)
{
AtkTextIface *iface;
+ gint local_start_offset, local_end_offset;
+ gint *real_start_offset, *real_end_offset;
- g_return_val_if_fail (text != NULL, NULL);
g_return_val_if_fail (ATK_IS_TEXT (text), NULL);
+ if (start_offset)
+ real_start_offset = start_offset;
+ else
+ real_start_offset = &local_start_offset;
+ if (end_offset)
+ real_end_offset = end_offset;
+ else
+ real_end_offset = &local_end_offset;
+
+ if (offset < 0)
+ return NULL;
+
iface = ATK_TEXT_GET_IFACE (text);
if (iface->get_text_before_offset)
- return (*(iface->get_text_before_offset)) (text, offset, boundary_type, startOffset, endOffset);
+ return (*(iface->get_text_before_offset)) (text, offset, boundary_type, real_start_offset, real_end_offset);
else
return NULL;
}
{
AtkTextIface *iface;
- g_return_val_if_fail (text != NULL, -1);
- 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
- * @length: length of character
- * @width: width 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, @length, and @width 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,
gint offset,
gint *x,
gint *y,
- gint *length,
gint *width,
+ gint *height,
AtkCoordType coords)
{
AtkTextIface *iface;
+ gint local_x, local_y, local_width, local_height;
+ gint *real_x, *real_y, *real_width, *real_height;
- g_return_if_fail (text != NULL);
g_return_if_fail (ATK_IS_TEXT (text));
+ if (x)
+ real_x = x;
+ else
+ real_x = &local_x;
+ if (y)
+ real_y = y;
+ else
+ real_y = &local_y;
+ if (width)
+ real_width = width;
+ else
+ real_width = &local_width;
+ if (height)
+ real_height = height;
+ 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, x, y, length, width, coords);
- else
+ (*(iface->get_character_extents)) (text, offset, real_x, real_y, real_width, real_height, coords);
+
+ if (*real_width <0)
{
- *x = 0;
- *x = 0;
- *length = 0;
- *width = 0;
+ *real_x = *real_x + *real_width;
+ *real_width *= -1;
}
}
/**
- *atk_text_ref_run_attributes:
+ *atk_text_get_run_attributes:
*@text: an #AtkText
*@offset: the offset at which to get the attributes
*@start_offset: the address to put the start offset of the range
*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.
+ *invariant. 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
+ *at @offset. This #AtkAttributeSet should be freed by a call to
+ *atk_attribute_set_free().
**/
-AtkAttributeSet* atk_text_ref_run_attributes (AtkText *text,
- gint offset,
- gint *start_offset,
- gint *end_offset)
+AtkAttributeSet*
+atk_text_get_run_attributes (AtkText *text,
+ gint offset,
+ gint *start_offset,
+ gint *end_offset)
+{
+ AtkTextIface *iface;
+ gint local_start_offset, local_end_offset;
+ gint *real_start_offset, *real_end_offset;
+
+ g_return_val_if_fail (ATK_IS_TEXT (text), NULL);
+
+ if (start_offset)
+ real_start_offset = start_offset;
+ else
+ real_start_offset = &local_start_offset;
+ if (end_offset)
+ real_end_offset = end_offset;
+ else
+ real_end_offset = &local_end_offset;
+
+ if (offset < 0)
+ return NULL;
+
+ iface = ATK_TEXT_GET_IFACE (text);
+
+ if (iface->get_run_attributes)
+ return (*(iface->get_run_attributes)) (text, offset, real_start_offset, real_end_offset);
+ else
+ return NULL;
+}
+
+/**
+ *atk_text_get_default_attributes:
+ *@text: an #AtkText
+ *
+ *Creates an #AtkAttributeSet which consists of the default values of
+ *attributes for the text. 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 default values of attributes.
+ *at @offset. This #AtkAttributeSet should be freed by a call to
+ *atk_attribute_set_free().
+ */
+AtkAttributeSet*
+atk_text_get_default_attributes (AtkText *text)
{
AtkTextIface *iface;
- g_return_val_if_fail (text != NULL, NULL);
g_return_val_if_fail (ATK_IS_TEXT (text), NULL);
iface = ATK_TEXT_GET_IFACE (text);
- if (iface->ref_run_attributes)
- return (*(iface->ref_run_attributes)) (text, offset, start_offset, end_offset);
+ if (iface->get_default_attributes)
+ return (*(iface->get_default_attributes)) (text);
else
return NULL;
}
{
AtkTextIface *iface;
- g_return_val_if_fail (text != NULL, -1);
g_return_val_if_fail (ATK_IS_TEXT (text), -1);
iface = ATK_TEXT_GET_IFACE (text);
{
AtkTextIface *iface;
- g_return_val_if_fail (text != NULL, -1);
g_return_val_if_fail (ATK_IS_TEXT (text), -1);
iface = ATK_TEXT_GET_IFACE (text);
{
AtkTextIface *iface;
- g_return_val_if_fail (text != NULL, -1);
g_return_val_if_fail (ATK_IS_TEXT (text), -1);
iface = ATK_TEXT_GET_IFACE (text);
* Returns: the selected text.
**/
gchar*
-atk_text_get_selection (AtkText *text, gint selection_num,
- gint *start_offset, gint *end_offset)
+atk_text_get_selection (AtkText *text,
+ gint selection_num,
+ gint *start_offset,
+ gint *end_offset)
{
AtkTextIface *iface;
+ gint local_start_offset, local_end_offset;
+ gint *real_start_offset, *real_end_offset;
- g_return_val_if_fail (text != NULL, NULL);
g_return_val_if_fail (ATK_IS_TEXT (text), NULL);
+ if (start_offset)
+ real_start_offset = start_offset;
+ else
+ real_start_offset = &local_start_offset;
+ if (end_offset)
+ real_end_offset = end_offset;
+ else
+ real_end_offset = &local_end_offset;
+
iface = ATK_TEXT_GET_IFACE (text);
if (iface->get_selection)
{
return (*(iface->get_selection)) (text, selection_num,
- start_offset, end_offset);
+ real_start_offset, real_end_offset);
}
else
return NULL;
* Returns: %TRUE if success, %FALSE otherwise
**/
gboolean
-atk_text_add_selection (AtkText *text, gint start_offset,
- gint end_offset)
+atk_text_add_selection (AtkText *text,
+ gint start_offset,
+ gint end_offset)
{
AtkTextIface *iface;
- g_return_val_if_fail (text != NULL, FALSE);
g_return_val_if_fail (ATK_IS_TEXT (text), FALSE);
iface = ATK_TEXT_GET_IFACE (text);
* Returns: %TRUE if success, %FALSE otherwise
**/
gboolean
-atk_text_remove_selection (AtkText *text, gint selection_num)
+atk_text_remove_selection (AtkText *text,
+ gint selection_num)
{
AtkTextIface *iface;
- g_return_val_if_fail (text != NULL, FALSE);
g_return_val_if_fail (ATK_IS_TEXT (text), FALSE);
iface = ATK_TEXT_GET_IFACE (text);
* Returns: %TRUE if success, %FALSE otherwise
**/
gboolean
-atk_text_set_selection (AtkText *text, gint selection_num,
- gint start_offset, gint end_offset)
+atk_text_set_selection (AtkText *text,
+ gint selection_num,
+ gint start_offset,
+ gint end_offset)
{
AtkTextIface *iface;
- g_return_val_if_fail (text != NULL, FALSE);
g_return_val_if_fail (ATK_IS_TEXT (text), FALSE);
iface = ATK_TEXT_GET_IFACE (text);
{
AtkTextIface *iface;
- g_return_val_if_fail (text != NULL, FALSE);
g_return_val_if_fail (ATK_IS_TEXT (text), FALSE);
iface = ATK_TEXT_GET_IFACE (text);
}
/**
- * AtkAttributeSet_free:
+ * 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);
+ else
+ atk_text_real_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 atk_text_real_get_bounded_ranges (text, rect, coord_type, x_clip_type, y_clip_type);
+}
+
+/**
+ * atk_attribute_set_free:
* @attrib_set: The #AtkAttributeSet to free
*
* Frees the memory used by an #AtkAttributeSet, including all its
* #AtkAttributes.
**/
void
-AtkAttributeSet_free(AtkAttributeSet *attrib_set)
+atk_attribute_set_free (AtkAttributeSet *attrib_set)
{
- gint index;
+ GSList *temp;
- if (attrib_set == NULL)
- return;
+ temp = attrib_set;
- for (index = 0; index < g_slist_length(attrib_set); index++)
- {
- g_free(((AtkAttribute*) (g_slist_nth(attrib_set,index)->data))->name);
- g_free(((AtkAttribute*) (g_slist_nth(attrib_set,index)->data))->value);
- }
- g_slist_free(attrib_set);
+ while (temp != NULL)
+ {
+ AtkAttribute *att;
+
+ att = temp->data;
+
+ g_free (att->name);
+ g_free (att->value);
+ g_free (att);
+ temp = temp->next;
+ }
+ g_slist_free (attrib_set);
+}
+
+/**
+ * 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
+ *
+ * Gets the name corresponding to the #AtkTextAttribute
+ *
+ * Returns: a string containing the name; this string should not be freed
+ **/
+G_CONST_RETURN gchar*
+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)
+{
+ 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_text_attribute_get_value:
+ * @attr: The #AtkTextAttribute for which a value is required
+ * @index_: The index of the required value
+ *
+ * Gets the value for the index of the #AtkTextAttribute
+ *
+ * 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_text_attribute_get_value (AtkTextAttribute attr,
+ gint index)
+{
+ switch (attr)
+ {
+ case ATK_TEXT_ATTR_INVISIBLE:
+ case ATK_TEXT_ATTR_EDITABLE:
+ case ATK_TEXT_ATTR_BG_FULL_HEIGHT:
+ case ATK_TEXT_ATTR_STRIKETHROUGH:
+ case ATK_TEXT_ATTR_BG_STIPPLE:
+ case ATK_TEXT_ATTR_FG_STIPPLE:
+ g_assert (index >= 0 && index < 2);
+ return bool[index];
+ case ATK_TEXT_ATTR_UNDERLINE:
+ g_assert (index >= 0 && index < 4);
+ return underline[index];
+ case ATK_TEXT_ATTR_WRAP_MODE:
+ g_assert (index >= 0 && index < 3);
+ return wrap_mode[index];
+ case ATK_TEXT_ATTR_DIRECTION:
+ g_assert (index >= 0 && index < 3);
+ return direction[index];
+ case ATK_TEXT_ATTR_JUSTIFICATION:
+ g_assert (index >= 0 && index < 3);
+ return justification[index];
+ case ATK_TEXT_ATTR_STRETCH:
+ g_assert (index >= 0 && index < 9);
+ return stretch[index];
+ case ATK_TEXT_ATTR_VARIANT:
+ g_assert (index >= 0 && index < 2);
+ return variant[index];
+ case ATK_TEXT_ATTR_STYLE:
+ g_assert (index >= 0 && index < 3);
+ return style[index];
+ default:
+ 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)
+{
+ if (ranges)
+ {
+ while (*ranges)
+ {
+ AtkTextRange *range;
+
+ range = *ranges;
+ *ranges++;
+ g_free (range->content);
+ g_free (ranges);
+ }
+ g_free (ranges);
+ }
}
projects / platform / upstream / atk.git / blobdiff