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-rw-r--r--pango/pango-renderer.c787
1 files changed, 401 insertions, 386 deletions
diff --git a/pango/pango-renderer.c b/pango/pango-renderer.c
index 432875a4..2d676782 100644
--- a/pango/pango-renderer.c
+++ b/pango/pango-renderer.c
@@ -10,7 +10,7 @@
*
* This library 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
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
@@ -67,37 +67,37 @@ struct _PangoRendererPrivate
static void pango_renderer_finalize (GObject *gobject);
static void pango_renderer_default_draw_glyphs (PangoRenderer *renderer,
- PangoFont *font,
- PangoGlyphString *glyphs,
- int x,
- int y);
+ PangoFont *font,
+ PangoGlyphString *glyphs,
+ int x,
+ int y);
static void pango_renderer_default_draw_glyph_item (PangoRenderer *renderer,
- const char *text,
- PangoGlyphItem *glyph_item,
- int x,
- int y);
+ const char *text,
+ PangoGlyphItem *glyph_item,
+ int x,
+ int y);
static void pango_renderer_default_draw_rectangle (PangoRenderer *renderer,
- PangoRenderPart part,
- int x,
- int y,
- int width,
- int height);
+ PangoRenderPart part,
+ int x,
+ int y,
+ int width,
+ int height);
static void pango_renderer_default_draw_error_underline (PangoRenderer *renderer,
- int x,
- int y,
- int width,
- int height);
+ int x,
+ int y,
+ int width,
+ int height);
static void pango_renderer_default_prepare_run (PangoRenderer *renderer,
- PangoLayoutRun *run);
+ PangoLayoutRun *run);
static void pango_renderer_prepare_run (PangoRenderer *renderer,
- PangoLayoutRun *run);
+ PangoLayoutRun *run);
static void
to_device (PangoMatrix *matrix,
- double x,
- double y,
- Point *result)
+ double x,
+ double y,
+ Point *result)
{
if (matrix)
{
@@ -148,22 +148,22 @@ pango_renderer_finalize (GObject *gobject)
/**
* pango_renderer_draw_layout:
- * @renderer: a #PangoRenderer
- * @layout: a #PangoLayout
+ * @renderer: a `PangoRenderer`
+ * @layout: a `PangoLayout`
* @x: X position of left edge of baseline, in user space coordinates
* in Pango units.
* @y: Y position of left edge of baseline, in user space coordinates
* in Pango units.
*
- * Draws @layout with the specified #PangoRenderer.
+ * Draws @layout with the specified `PangoRenderer`.
*
* Since: 1.8
- **/
+ */
void
-pango_renderer_draw_layout (PangoRenderer *renderer,
- PangoLayout *layout,
- int x,
- int y)
+pango_renderer_draw_layout (PangoRenderer *renderer,
+ PangoLayout *layout,
+ int x,
+ int y)
{
PangoLayoutIter iter;
@@ -177,7 +177,7 @@ pango_renderer_draw_layout (PangoRenderer *renderer,
{
PangoContext *context = pango_layout_get_context (layout);
pango_renderer_set_matrix (renderer,
- pango_context_get_matrix (context));
+ pango_context_get_matrix (context));
}
pango_renderer_activate (renderer);
@@ -196,9 +196,9 @@ pango_renderer_draw_layout (PangoRenderer *renderer,
baseline = pango_layout_iter_get_baseline (&iter);
pango_renderer_draw_layout_line (renderer,
- line,
- x + logical_rect.x,
- y + baseline);
+ line,
+ x + logical_rect.x,
+ y + baseline);
}
while (pango_layout_iter_next_line (&iter));
@@ -209,7 +209,7 @@ pango_renderer_draw_layout (PangoRenderer *renderer,
static void
draw_underline (PangoRenderer *renderer,
- LineState *state)
+ LineState *state)
{
PangoRectangle *rect = &state->underline_rect;
PangoUnderline underline = state->underline;
@@ -223,29 +223,29 @@ draw_underline (PangoRenderer *renderer,
case PANGO_UNDERLINE_DOUBLE:
case PANGO_UNDERLINE_DOUBLE_LINE:
pango_renderer_draw_rectangle (renderer,
- PANGO_RENDER_PART_UNDERLINE,
- rect->x,
- rect->y + 2 * rect->height,
- rect->width,
- rect->height);
+ PANGO_RENDER_PART_UNDERLINE,
+ rect->x,
+ rect->y + 2 * rect->height,
+ rect->width,
+ rect->height);
G_GNUC_FALLTHROUGH;
case PANGO_UNDERLINE_SINGLE:
case PANGO_UNDERLINE_LOW:
case PANGO_UNDERLINE_SINGLE_LINE:
pango_renderer_draw_rectangle (renderer,
- PANGO_RENDER_PART_UNDERLINE,
- rect->x,
- rect->y,
- rect->width,
- rect->height);
+ PANGO_RENDER_PART_UNDERLINE,
+ rect->x,
+ rect->y,
+ rect->width,
+ rect->height);
break;
case PANGO_UNDERLINE_ERROR:
case PANGO_UNDERLINE_ERROR_LINE:
pango_renderer_draw_error_underline (renderer,
- rect->x,
- rect->y,
- rect->width,
- 3 * rect->height);
+ rect->x,
+ rect->y,
+ rect->width,
+ 3 * rect->height);
break;
}
}
@@ -265,18 +265,18 @@ draw_overline (PangoRenderer *renderer,
break;
case PANGO_OVERLINE_SINGLE:
pango_renderer_draw_rectangle (renderer,
- PANGO_RENDER_PART_OVERLINE,
- rect->x,
- rect->y,
- rect->width,
- rect->height);
+ PANGO_RENDER_PART_OVERLINE,
+ rect->x,
+ rect->y,
+ rect->width,
+ rect->height);
break;
}
}
static void
draw_strikethrough (PangoRenderer *renderer,
- LineState *state)
+ LineState *state)
{
PangoRectangle *rect = &state->strikethrough_rect;
gboolean strikethrough = state->strikethrough;
@@ -295,7 +295,7 @@ draw_strikethrough (PangoRenderer *renderer,
static void
handle_line_state_change (PangoRenderer *renderer,
- PangoRenderPart part)
+ PangoRenderPart part)
{
LineState *state = renderer->priv->line_state;
if (!state)
@@ -340,12 +340,12 @@ handle_line_state_change (PangoRenderer *renderer,
static void
add_underline (PangoRenderer *renderer,
- LineState *state,
- PangoFontMetrics *metrics,
- int base_x,
- int base_y,
- PangoRectangle *ink_rect,
- PangoRectangle *logical_rect)
+ LineState *state,
+ PangoFontMetrics *metrics,
+ int base_x,
+ int base_y,
+ PangoRectangle *ink_rect,
+ PangoRectangle *logical_rect)
{
PangoRectangle *current_rect = &state->underline_rect;
PangoRectangle new_rect;
@@ -453,12 +453,12 @@ add_overline (PangoRenderer *renderer,
static void
add_strikethrough (PangoRenderer *renderer,
- LineState *state,
- PangoFontMetrics *metrics,
- int base_x,
- int base_y,
- PangoRectangle *ink_rect G_GNUC_UNUSED,
- PangoRectangle *logical_rect,
+ LineState *state,
+ PangoFontMetrics *metrics,
+ int base_x,
+ int base_y,
+ PangoRectangle *ink_rect G_GNUC_UNUSED,
+ PangoRectangle *logical_rect,
int num_glyphs)
{
PangoRectangle *current_rect = &state->strikethrough_rect;
@@ -490,8 +490,8 @@ add_strikethrough (PangoRenderer *renderer,
static void
get_item_properties (PangoItem *item,
- gint *rise,
- PangoAttrShape **shape_attr)
+ gint *rise,
+ PangoAttrShape **shape_attr)
{
GSList *l;
@@ -506,29 +506,29 @@ get_item_properties (PangoItem *item,
PangoAttribute *attr = l->data;
switch ((int) attr->klass->type)
- {
- case PANGO_ATTR_SHAPE:
- if (shape_attr)
- *shape_attr = (PangoAttrShape *)attr;
- break;
-
- case PANGO_ATTR_RISE:
- if (rise)
- *rise = ((PangoAttrInt *)attr)->value;
- break;
-
- default:
- break;
- }
+ {
+ case PANGO_ATTR_SHAPE:
+ if (shape_attr)
+ *shape_attr = (PangoAttrShape *)attr;
+ break;
+
+ case PANGO_ATTR_RISE:
+ if (rise)
+ *rise = ((PangoAttrInt *)attr)->value;
+ break;
+
+ default:
+ break;
+ }
}
}
static void
draw_shaped_glyphs (PangoRenderer *renderer,
- PangoGlyphString *glyphs,
- PangoAttrShape *attr,
- int x,
- int y)
+ PangoGlyphString *glyphs,
+ PangoAttrShape *attr,
+ int x,
+ int y)
{
PangoRendererClass *class = PANGO_RENDERER_GET_CLASS (renderer);
int i;
@@ -549,22 +549,22 @@ draw_shaped_glyphs (PangoRenderer *renderer,
/**
* pango_renderer_draw_layout_line:
- * @renderer: a #PangoRenderer
- * @line: a #PangoLayoutLine
+ * @renderer: a `PangoRenderer`
+ * @line: a `PangoLayoutLine`
* @x: X position of left edge of baseline, in user space coordinates
* in Pango units.
* @y: Y position of left edge of baseline, in user space coordinates
* in Pango units.
*
- * Draws @line with the specified #PangoRenderer.
+ * Draws @line with the specified `PangoRenderer`.
*
* Since: 1.8
- **/
+ */
void
-pango_renderer_draw_layout_line (PangoRenderer *renderer,
- PangoLayoutLine *line,
- int x,
- int y)
+pango_renderer_draw_layout_line (PangoRenderer *renderer,
+ PangoLayoutLine *line,
+ int x,
+ int y)
{
int x_off = 0;
int glyph_string_width;
@@ -581,10 +581,10 @@ pango_renderer_draw_layout_line (PangoRenderer *renderer,
*/
if (!renderer->active_count)
pango_renderer_set_matrix (renderer,
- G_LIKELY (line->layout) ?
- pango_context_get_matrix
- (pango_layout_get_context (line->layout)) :
- NULL);
+ G_LIKELY (line->layout) ?
+ pango_context_get_matrix
+ (pango_layout_get_context (line->layout)) :
+ NULL);
pango_renderer_activate (renderer);
@@ -607,118 +607,118 @@ pango_renderer_draw_layout_line (PangoRenderer *renderer,
PangoRectangle logical_rect, *logical = NULL;
if (run->item->analysis.flags & PANGO_ANALYSIS_FLAG_CENTERED_BASELINE)
- logical = &logical_rect;
+ logical = &logical_rect;
pango_renderer_prepare_run (renderer, run);
get_item_properties (run->item, &rise, &shape_attr);
if (shape_attr)
- {
- ink = &ink_rect;
- logical = &logical_rect;
+ {
+ ink = &ink_rect;
+ logical = &logical_rect;
_pango_shape_get_extents (run->glyphs->num_glyphs,
- &shape_attr->ink_rect,
- &shape_attr->logical_rect,
- ink,
- logical);
- glyph_string_width = logical->width;
- }
+ &shape_attr->ink_rect,
+ &shape_attr->logical_rect,
+ ink,
+ logical);
+ glyph_string_width = logical->width;
+ }
else
- {
- if (renderer->underline != PANGO_UNDERLINE_NONE ||
+ {
+ if (renderer->underline != PANGO_UNDERLINE_NONE ||
renderer->priv->overline != PANGO_OVERLINE_NONE ||
- renderer->strikethrough)
- {
- ink = &ink_rect;
- logical = &logical_rect;
- }
- if (G_UNLIKELY (ink || logical))
- pango_glyph_string_extents (run->glyphs, run->item->analysis.font,
- ink, logical);
- if (logical)
- glyph_string_width = logical_rect.width;
- else
- glyph_string_width = pango_glyph_string_get_width (run->glyphs);
- }
+ renderer->strikethrough)
+ {
+ ink = &ink_rect;
+ logical = &logical_rect;
+ }
+ if (G_UNLIKELY (ink || logical))
+ pango_glyph_string_extents (run->glyphs, run->item->analysis.font,
+ ink, logical);
+ if (logical)
+ glyph_string_width = logical_rect.width;
+ else
+ glyph_string_width = pango_glyph_string_get_width (run->glyphs);
+ }
state.logical_rect_end = x + x_off + glyph_string_width;
if (run->item->analysis.flags & PANGO_ANALYSIS_FLAG_CENTERED_BASELINE)
- {
- gboolean is_hinted = ((logical_rect.y | logical_rect.height) & (PANGO_SCALE - 1)) == 0;
- int adjustment = logical_rect.y + logical_rect.height / 2;
+ {
+ gboolean is_hinted = ((logical_rect.y | logical_rect.height) & (PANGO_SCALE - 1)) == 0;
+ int adjustment = logical_rect.y + logical_rect.height / 2;
- if (is_hinted)
- adjustment = PANGO_UNITS_ROUND (adjustment);
+ if (is_hinted)
+ adjustment = PANGO_UNITS_ROUND (adjustment);
- rise += adjustment;
- }
+ rise += adjustment;
+ }
if (renderer->priv->color_set[PANGO_RENDER_PART_BACKGROUND])
- {
- if (!got_overall)
- {
- pango_layout_line_get_extents (line, NULL, &overall_rect);
- got_overall = TRUE;
- }
-
- pango_renderer_draw_rectangle (renderer,
- PANGO_RENDER_PART_BACKGROUND,
- x + x_off,
- y + overall_rect.y,
- glyph_string_width,
- overall_rect.height);
- }
+ {
+ if (!got_overall)
+ {
+ pango_layout_line_get_extents (line, NULL, &overall_rect);
+ got_overall = TRUE;
+ }
+
+ pango_renderer_draw_rectangle (renderer,
+ PANGO_RENDER_PART_BACKGROUND,
+ x + x_off,
+ y + overall_rect.y,
+ glyph_string_width,
+ overall_rect.height);
+ }
if (shape_attr)
- {
- draw_shaped_glyphs (renderer, run->glyphs, shape_attr, x + x_off, y - rise);
- }
+ {
+ draw_shaped_glyphs (renderer, run->glyphs, shape_attr, x + x_off, y - rise);
+ }
else
- {
- pango_renderer_draw_glyph_item (renderer,
- text,
- run,
- x + x_off, y - rise);
- }
+ {
+ pango_renderer_draw_glyph_item (renderer,
+ text,
+ run,
+ x + x_off, y - rise);
+ }
if (renderer->underline != PANGO_UNDERLINE_NONE ||
renderer->priv->overline != PANGO_OVERLINE_NONE ||
- renderer->strikethrough)
- {
- metrics = pango_font_get_metrics (run->item->analysis.font,
- run->item->analysis.language);
+ renderer->strikethrough)
+ {
+ metrics = pango_font_get_metrics (run->item->analysis.font,
+ run->item->analysis.language);
- if (renderer->underline != PANGO_UNDERLINE_NONE)
- add_underline (renderer, &state,metrics,
- x + x_off, y - rise,
- ink, logical);
+ if (renderer->underline != PANGO_UNDERLINE_NONE)
+ add_underline (renderer, &state,metrics,
+ x + x_off, y - rise,
+ ink, logical);
- if (renderer->priv->overline != PANGO_OVERLINE_NONE)
- add_overline (renderer, &state,metrics,
- x + x_off, y - rise,
- ink, logical);
+ if (renderer->priv->overline != PANGO_OVERLINE_NONE)
+ add_overline (renderer, &state,metrics,
+ x + x_off, y - rise,
+ ink, logical);
- if (renderer->strikethrough)
- add_strikethrough (renderer, &state, metrics,
- x + x_off, y - rise,
- ink, logical, run->glyphs->num_glyphs);
+ if (renderer->strikethrough)
+ add_strikethrough (renderer, &state, metrics,
+ x + x_off, y - rise,
+ ink, logical, run->glyphs->num_glyphs);
- pango_font_metrics_unref (metrics);
- }
+ pango_font_metrics_unref (metrics);
+ }
if (renderer->underline == PANGO_UNDERLINE_NONE &&
- state.underline != PANGO_UNDERLINE_NONE)
- draw_underline (renderer, &state);
+ state.underline != PANGO_UNDERLINE_NONE)
+ draw_underline (renderer, &state);
if (renderer->priv->overline == PANGO_OVERLINE_NONE &&
- state.overline != PANGO_OVERLINE_NONE)
- draw_overline (renderer, &state);
+ state.overline != PANGO_OVERLINE_NONE)
+ draw_overline (renderer, &state);
if (!renderer->strikethrough && state.strikethrough)
- draw_strikethrough (renderer, &state);
+ draw_strikethrough (renderer, &state);
x_off += glyph_string_width;
}
@@ -737,24 +737,24 @@ pango_renderer_draw_layout_line (PangoRenderer *renderer,
/**
* pango_renderer_draw_glyphs:
- * @renderer: a #PangoRenderer
- * @font: a #PangoFont
- * @glyphs: a #PangoGlyphString
+ * @renderer: a `PangoRenderer`
+ * @font: a `PangoFont`
+ * @glyphs: a `PangoGlyphString`
* @x: X position of left edge of baseline, in user space coordinates
* in Pango units.
* @y: Y position of left edge of baseline, in user space coordinates
* in Pango units.
*
- * Draws the glyphs in @glyphs with the specified #PangoRenderer.
+ * Draws the glyphs in @glyphs with the specified `PangoRenderer`.
*
* Since: 1.8
- **/
+ */
void
pango_renderer_draw_glyphs (PangoRenderer *renderer,
- PangoFont *font,
- PangoGlyphString *glyphs,
- int x,
- int y)
+ PangoFont *font,
+ PangoGlyphString *glyphs,
+ int x,
+ int y)
{
g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer));
@@ -767,10 +767,10 @@ pango_renderer_draw_glyphs (PangoRenderer *renderer,
static void
pango_renderer_default_draw_glyphs (PangoRenderer *renderer,
- PangoFont *font,
- PangoGlyphString *glyphs,
- int x,
- int y)
+ PangoFont *font,
+ PangoGlyphString *glyphs,
+ int x,
+ int y)
{
int i;
int x_position = 0;
@@ -781,9 +781,9 @@ pango_renderer_default_draw_glyphs (PangoRenderer *renderer,
Point p;
to_device (renderer->matrix,
- x + x_position + gi->geometry.x_offset,
- y + gi->geometry.y_offset,
- &p);
+ x + x_position + gi->geometry.x_offset,
+ y + gi->geometry.y_offset,
+ &p);
pango_renderer_draw_glyph (renderer, font, gi->glyph, p.x, p.y);
@@ -793,41 +793,43 @@ pango_renderer_default_draw_glyphs (PangoRenderer *renderer,
/**
* pango_renderer_draw_glyph_item:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
* @text: (allow-none): the UTF-8 text that @glyph_item refers to, or %NULL
- * @glyph_item: a #PangoGlyphItem
+ * @glyph_item: a `PangoGlyphItem`
* @x: X position of left edge of baseline, in user space coordinates
* in Pango units.
* @y: Y position of left edge of baseline, in user space coordinates
* in Pango units.
*
- * Draws the glyphs in @glyph_item with the specified #PangoRenderer,
+ * Draws the glyphs in @glyph_item with the specified `PangoRenderer`,
* embedding the text associated with the glyphs in the output if the
- * output format supports it (PDF for example).
+ * output format supports it.
+ *
+ * This is useful for rendering text in PDF.
*
* Note that @text is the start of the text for layout, which is then
- * indexed by <literal>@glyph_item->item->offset</literal>.
+ * indexed by `glyph_item->item->offset`.
*
- * If @text is %NULL, this simply calls pango_renderer_draw_glyphs().
+ * If @text is %NULL, this simply calls [method@Pango.Renderer.draw_glyphs].
*
* The default implementation of this method simply falls back to
- * pango_renderer_draw_glyphs().
+ * [method@Pango.Renderer.draw_glyphs].
*
* Since: 1.22
- **/
+ */
void
-pango_renderer_draw_glyph_item (PangoRenderer *renderer,
- const char *text,
- PangoGlyphItem *glyph_item,
- int x,
- int y)
+pango_renderer_draw_glyph_item (PangoRenderer *renderer,
+ const char *text,
+ PangoGlyphItem *glyph_item,
+ int x,
+ int y)
{
if (!text)
{
pango_renderer_draw_glyphs (renderer,
- glyph_item->item->analysis.font,
- glyph_item->glyphs,
- x, y);
+ glyph_item->item->analysis.font,
+ glyph_item->glyphs,
+ x, y);
return;
}
@@ -841,42 +843,44 @@ pango_renderer_draw_glyph_item (PangoRenderer *renderer,
}
static void
-pango_renderer_default_draw_glyph_item (PangoRenderer *renderer,
- const char *text G_GNUC_UNUSED,
- PangoGlyphItem *glyph_item,
- int x,
- int y)
+pango_renderer_default_draw_glyph_item (PangoRenderer *renderer,
+ const char *text G_GNUC_UNUSED,
+ PangoGlyphItem *glyph_item,
+ int x,
+ int y)
{
pango_renderer_draw_glyphs (renderer,
- glyph_item->item->analysis.font,
- glyph_item->glyphs,
- x, y);
+ glyph_item->item->analysis.font,
+ glyph_item->glyphs,
+ x, y);
}
/**
* pango_renderer_draw_rectangle:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
* @part: type of object this rectangle is part of
- * @x: X position at which to draw rectangle, in user space coordinates in Pango units
- * @y: Y position at which to draw rectangle, in user space coordinates in Pango units
- * @width: width of rectangle in Pango units in user space coordinates
- * @height: height of rectangle in Pango units in user space coordinates
+ * @x: X position at which to draw rectangle, in user space coordinates
+ * in Pango units
+ * @y: Y position at which to draw rectangle, in user space coordinates
+ * in Pango units
+ * @width: width of rectangle in Pango units
+ * @height: height of rectangle in Pango units
*
* Draws an axis-aligned rectangle in user space coordinates with the
- * specified #PangoRenderer.
+ * specified `PangoRenderer`.
*
- * This should be called while @renderer is already active. Use
- * pango_renderer_activate() to activate a renderer.
+ * This should be called while @renderer is already active.
+ * Use [method@Pango.Renderer.activate] to activate a renderer.
*
* Since: 1.8
- **/
+ */
void
pango_renderer_draw_rectangle (PangoRenderer *renderer,
- PangoRenderPart part,
- int x,
- int y,
- int width,
- int height)
+ PangoRenderPart part,
+ int x,
+ int y,
+ int width,
+ int height)
{
g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer));
g_return_if_fail (IS_VALID_PART (part));
@@ -887,7 +891,7 @@ pango_renderer_draw_rectangle (PangoRenderer *renderer,
static int
compare_points (const void *a,
- const void *b)
+ const void *b)
{
const Point *pa = a;
const Point *pb = b;
@@ -906,12 +910,12 @@ compare_points (const void *a,
static void
draw_rectangle (PangoRenderer *renderer,
- PangoMatrix *matrix,
- PangoRenderPart part,
- int x,
- int y,
- int width,
- int height)
+ PangoMatrix *matrix,
+ PangoRenderPart part,
+ int x,
+ int y,
+ int width,
+ int height)
{
Point points[4];
@@ -944,8 +948,8 @@ draw_rectangle (PangoRenderer *renderer,
{
/* Case 1 (pure shear) */
pango_renderer_draw_trapezoid (renderer, part, /* B */
- points[0].y, points[0].x, points[1].x,
- points[2].y, points[2].x, points[3].x);
+ points[0].y, points[0].x, points[1].x,
+ points[2].y, points[2].x, points[3].x);
}
else if (points[1].x < points[2].x)
{
@@ -954,14 +958,14 @@ draw_rectangle (PangoRenderer *renderer,
double base_width = tmp_width + points[0].x - points[1].x;
pango_renderer_draw_trapezoid (renderer, part, /* A */
- points[0].y, points[0].x, points[0].x,
- points[1].y, points[1].x, points[1].x + base_width);
+ points[0].y, points[0].x, points[0].x,
+ points[1].y, points[1].x, points[1].x + base_width);
pango_renderer_draw_trapezoid (renderer, part, /* B */
- points[1].y, points[1].x, points[1].x + base_width,
- points[2].y, points[2].x - base_width, points[2].x);
+ points[1].y, points[1].x, points[1].x + base_width,
+ points[2].y, points[2].x - base_width, points[2].x);
pango_renderer_draw_trapezoid (renderer, part, /* C */
- points[2].y, points[2].x - base_width, points[2].x,
- points[3].y, points[3].x, points[3].x);
+ points[2].y, points[2].x - base_width, points[2].x,
+ points[3].y, points[3].x, points[3].x);
}
else
{
@@ -970,31 +974,31 @@ draw_rectangle (PangoRenderer *renderer,
double base_width = tmp_width + points[1].x - points[0].x;
pango_renderer_draw_trapezoid (renderer, part, /* A */
- points[0].y, points[0].x, points[0].x,
- points[1].y, points[1].x - base_width, points[1].x);
+ points[0].y, points[0].x, points[0].x,
+ points[1].y, points[1].x - base_width, points[1].x);
pango_renderer_draw_trapezoid (renderer, part, /* B */
- points[1].y, points[1].x - base_width, points[1].x,
- points[2].y, points[2].x, points[2].x + base_width);
+ points[1].y, points[1].x - base_width, points[1].x,
+ points[2].y, points[2].x, points[2].x + base_width);
pango_renderer_draw_trapezoid (renderer, part, /* C */
- points[2].y, points[2].x, points[2].x + base_width,
- points[3].y, points[3].x, points[3].x);
+ points[2].y, points[2].x, points[2].x + base_width,
+ points[3].y, points[3].x, points[3].x);
}
}
static void
pango_renderer_default_draw_rectangle (PangoRenderer *renderer,
- PangoRenderPart part,
- int x,
- int y,
- int width,
- int height)
+ PangoRenderPart part,
+ int x,
+ int y,
+ int width,
+ int height)
{
draw_rectangle (renderer, renderer->matrix, part, x, y, width, height);
}
/**
* pango_renderer_draw_error_underline:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
* @x: X coordinate of underline, in Pango units in user coordinate system
* @y: Y coordinate of underline, in Pango units in user coordinate system
* @width: width of underline, in Pango units in user coordinate system
@@ -1002,21 +1006,22 @@ pango_renderer_default_draw_rectangle (PangoRenderer *renderer,
*
* Draw a squiggly line that approximately covers the given rectangle
* in the style of an underline used to indicate a spelling error.
- * (The width of the underline is rounded to an integer number
+ *
+ * The width of the underline is rounded to an integer number
* of up/down segments and the resulting rectangle is centered
- * in the original rectangle)
+ * in the original rectangle.
*
- * This should be called while @renderer is already active. Use
- * pango_renderer_activate() to activate a renderer.
+ * This should be called while @renderer is already active.
+ * Use [method@Pango.Renderer.activate] to activate a renderer.
*
* Since: 1.8
- **/
+ */
void
pango_renderer_draw_error_underline (PangoRenderer *renderer,
- int x,
- int y,
- int width,
- int height)
+ int x,
+ int y,
+ int width,
+ int height)
{
g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer));
g_return_if_fail (renderer->active_count > 0);
@@ -1065,10 +1070,10 @@ pango_renderer_draw_error_underline (PangoRenderer *renderer,
static void
get_total_matrix (PangoMatrix *total,
- const PangoMatrix *global,
- int x,
- int y,
- int square)
+ const PangoMatrix *global,
+ int x,
+ int y,
+ int square)
{
PangoMatrix local;
gdouble scale = 0.5 * square;
@@ -1092,10 +1097,10 @@ get_total_matrix (PangoMatrix *total,
static void
pango_renderer_default_draw_error_underline (PangoRenderer *renderer,
- int x,
- int y,
- int width,
- int height)
+ int x,
+ int y,
+ int width,
+ int height)
{
int square;
int unit_width;
@@ -1129,16 +1134,16 @@ pango_renderer_default_draw_error_underline (PangoRenderer *renderer,
while (TRUE)
{
draw_rectangle (renderer, &total, PANGO_RENDER_PART_UNDERLINE, /* A */
- 0, 0,
- HEIGHT_SQUARES * 2 - 1, 1);
+ 0, 0,
+ HEIGHT_SQUARES * 2 - 1, 1);
if (i <= 0)
break;
i--;
draw_rectangle (renderer, &total, PANGO_RENDER_PART_UNDERLINE, /* B */
- HEIGHT_SQUARES * 2 - 2, - (HEIGHT_SQUARES * 2 - 3),
- 1, HEIGHT_SQUARES * 2 - 3);
+ HEIGHT_SQUARES * 2 - 2, - (HEIGHT_SQUARES * 2 - 3),
+ 1, HEIGHT_SQUARES * 2 - 3);
total.x0 += dx0;
total.y0 += dy0;
@@ -1146,14 +1151,14 @@ pango_renderer_default_draw_error_underline (PangoRenderer *renderer,
if (width_units % 2 == 0)
{
draw_rectangle (renderer, &total, PANGO_RENDER_PART_UNDERLINE, /* C */
- HEIGHT_SQUARES * 2 - 2, - (HEIGHT_SQUARES * 2 - 2),
- 1, HEIGHT_SQUARES * 2 - 2);
+ HEIGHT_SQUARES * 2 - 2, - (HEIGHT_SQUARES * 2 - 2),
+ 1, HEIGHT_SQUARES * 2 - 2);
}
}
/**
* pango_renderer_draw_trapezoid:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
* @part: type of object this trapezoid is part of
* @y1_: Y coordinate of top of trapezoid
* @x11: X coordinate of left end of top of trapezoid
@@ -1163,32 +1168,32 @@ pango_renderer_default_draw_error_underline (PangoRenderer *renderer,
* @x22: X coordinate of right end of bottom of trapezoid
*
* Draws a trapezoid with the parallel sides aligned with the X axis
- * using the given #PangoRenderer; coordinates are in device space.
+ * using the given `PangoRenderer`; coordinates are in device space.
*
* Since: 1.8
- **/
+ */
void
-pango_renderer_draw_trapezoid (PangoRenderer *renderer,
- PangoRenderPart part,
- double y1_,
- double x11,
- double x21,
- double y2,
- double x12,
- double x22)
+pango_renderer_draw_trapezoid (PangoRenderer *renderer,
+ PangoRenderPart part,
+ double y1_,
+ double x11,
+ double x21,
+ double y2,
+ double x12,
+ double x22)
{
g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer));
g_return_if_fail (renderer->active_count > 0);
if (PANGO_RENDERER_GET_CLASS (renderer)->draw_trapezoid)
PANGO_RENDERER_GET_CLASS (renderer)->draw_trapezoid (renderer, part,
- y1_, x11, x21,
- y2, x12, x22);
+ y1_, x11, x21,
+ y2, x12, x22);
}
/**
* pango_renderer_draw_glyph:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
* @font: a #PangoFont
* @glyph: the glyph index of a single glyph
* @x: X coordinate of left edge of baseline of glyph
@@ -1197,13 +1202,13 @@ pango_renderer_draw_trapezoid (PangoRenderer *renderer,
* Draws a single glyph with coordinates in device space.
*
* Since: 1.8
- **/
+ */
void
pango_renderer_draw_glyph (PangoRenderer *renderer,
- PangoFont *font,
- PangoGlyph glyph,
- double x,
- double y)
+ PangoFont *font,
+ PangoGlyph glyph,
+ double x,
+ double y)
{
g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer));
g_return_if_fail (renderer->active_count > 0);
@@ -1217,14 +1222,15 @@ pango_renderer_draw_glyph (PangoRenderer *renderer,
/**
* pango_renderer_activate:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
*
* Does initial setup before rendering operations on @renderer.
- * pango_renderer_deactivate() should be called when done drawing.
- * Calls such as pango_renderer_draw_layout() automatically
+ *
+ * [method@Pango.Renderer.deactivate] should be called when done drawing.
+ * Calls such as [method@Pango.Renderer.draw_layout] automatically
* activate the layout before drawing on it. Calls to
- * pango_renderer_activate() and pango_renderer_deactivate() can
- * be nested and the renderer will only be initialized and
+ * `pango_renderer_activate()` and `pango_renderer_deactivate()`
+ * can be nested and the renderer will only be initialized and
* deinitialized once.
*
* Since: 1.8
@@ -1238,19 +1244,20 @@ pango_renderer_activate (PangoRenderer *renderer)
if (renderer->active_count == 1)
{
if (PANGO_RENDERER_GET_CLASS (renderer)->begin)
- PANGO_RENDERER_GET_CLASS (renderer)->begin (renderer);
+ PANGO_RENDERER_GET_CLASS (renderer)->begin (renderer);
}
}
/**
* pango_renderer_deactivate:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
+ *
+ * Cleans up after rendering operations on @renderer.
*
- * Cleans up after rendering operations on @renderer. See
- * docs for pango_renderer_activate().
+ * See docs for [method@Pango.Renderer.activate].
*
* Since: 1.8
- **/
+ */
void
pango_renderer_deactivate (PangoRenderer *renderer)
{
@@ -1260,26 +1267,27 @@ pango_renderer_deactivate (PangoRenderer *renderer)
if (renderer->active_count == 1)
{
if (PANGO_RENDERER_GET_CLASS (renderer)->end)
- PANGO_RENDERER_GET_CLASS (renderer)->end (renderer);
+ PANGO_RENDERER_GET_CLASS (renderer)->end (renderer);
}
renderer->active_count--;
}
/**
* pango_renderer_set_color:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
* @part: the part to change the color of
* @color: (allow-none): the new color or %NULL to unset the current color
*
* Sets the color for part of the rendering.
- * Also see pango_renderer_set_alpha().
+ *
+ * Also see [method@Pango.Renderer.set_alpha].
*
* Since: 1.8
- **/
+ */
void
pango_renderer_set_color (PangoRenderer *renderer,
- PangoRenderPart part,
- const PangoColor *color)
+ PangoRenderPart part,
+ const PangoColor *color)
{
g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer));
g_return_if_fail (IS_VALID_PART (part));
@@ -1306,7 +1314,7 @@ pango_renderer_set_color (PangoRenderer *renderer,
/**
* pango_renderer_get_color:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
* @part: the part to get the color for
*
* Gets the current rendering color for the specified part.
@@ -1316,10 +1324,10 @@ pango_renderer_set_color (PangoRenderer *renderer,
* inherited from the environment.
*
* Since: 1.8
- **/
+ */
PangoColor *
pango_renderer_get_color (PangoRenderer *renderer,
- PangoRenderPart part)
+ PangoRenderPart part)
{
g_return_val_if_fail (PANGO_IS_RENDERER_FAST (renderer), NULL);
g_return_val_if_fail (IS_VALID_PART (part), NULL);
@@ -1332,11 +1340,12 @@ pango_renderer_get_color (PangoRenderer *renderer,
/**
* pango_renderer_set_alpha:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
* @part: the part to set the alpha for
* @alpha: an alpha value between 1 and 65536, or 0 to unset the alpha
*
* Sets the alpha for part of the rendering.
+ *
* Note that the alpha may only be used if a color is
* specified for @part as well.
*
@@ -1362,7 +1371,7 @@ pango_renderer_set_alpha (PangoRenderer *renderer,
/**
* pango_renderer_get_alpha:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
* @part: the part to get the alpha for
*
* Gets the current alpha for the specified part.
@@ -1385,28 +1394,30 @@ pango_renderer_get_alpha (PangoRenderer *renderer,
/**
* pango_renderer_part_changed:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
* @part: the part for which rendering has changed.
*
* Informs Pango that the way that the rendering is done
- * for @part has changed in a way that would prevent multiple
- * pieces being joined together into one drawing call. For
- * instance, if a subclass of #PangoRenderer was to add a stipple
+ * for @part has changed.
+ *
+ * This should be called if the rendering changes in a way that would
+ * prevent multiple pieces being joined together into one drawing call.
+ * For instance, if a subclass of `PangoRenderer` was to add a stipple
* option for drawing underlines, it needs to call
*
- * <informalexample><programlisting>
+ * ```
* pango_renderer_part_changed (render, PANGO_RENDER_PART_UNDERLINE);
- * </programlisting></informalexample>
+ * ```
*
* When the stipple changes or underlines with different stipples
* might be joined together. Pango automatically calls this for
- * changes to colors. (See pango_renderer_set_color())
+ * changes to colors. (See [method@Pango.Renderer.set_color])
*
* Since: 1.8
- **/
+ */
void
-pango_renderer_part_changed (PangoRenderer *renderer,
- PangoRenderPart part)
+pango_renderer_part_changed (PangoRenderer *renderer,
+ PangoRenderPart part)
{
g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer));
g_return_if_fail (IS_VALID_PART (part));
@@ -1420,16 +1431,16 @@ pango_renderer_part_changed (PangoRenderer *renderer,
/**
* pango_renderer_prepare_run:
- * @renderer: a #PangoRenderer
- * @run: a #PangoLayoutRun
+ * @renderer: a `PangoRenderer`
+ * @run: a `PangoLayoutRun`
*
- * Set up the state of the #PangoRenderer for rendering @run.
+ * Set up the state of the `PangoRenderer` for rendering @run.
*
* Since: 1.8
- **/
+ */
static void
pango_renderer_prepare_run (PangoRenderer *renderer,
- PangoLayoutRun *run)
+ PangoLayoutRun *run)
{
g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer));
@@ -1438,7 +1449,7 @@ pango_renderer_prepare_run (PangoRenderer *renderer,
static void
pango_renderer_default_prepare_run (PangoRenderer *renderer,
- PangoLayoutRun *run)
+ PangoLayoutRun *run)
{
PangoColor *fg_color = NULL;
PangoColor *bg_color = NULL;
@@ -1458,50 +1469,50 @@ pango_renderer_default_prepare_run (PangoRenderer *renderer,
PangoAttribute *attr = l->data;
switch ((int) attr->klass->type)
- {
- case PANGO_ATTR_UNDERLINE:
- renderer->underline = ((PangoAttrInt *)attr)->value;
- break;
+ {
+ case PANGO_ATTR_UNDERLINE:
+ renderer->underline = ((PangoAttrInt *)attr)->value;
+ break;
- case PANGO_ATTR_OVERLINE:
- renderer->priv->overline = ((PangoAttrInt *)attr)->value;
- break;
+ case PANGO_ATTR_OVERLINE:
+ renderer->priv->overline = ((PangoAttrInt *)attr)->value;
+ break;
- case PANGO_ATTR_STRIKETHROUGH:
- renderer->strikethrough = ((PangoAttrInt *)attr)->value;
- break;
+ case PANGO_ATTR_STRIKETHROUGH:
+ renderer->strikethrough = ((PangoAttrInt *)attr)->value;
+ break;
- case PANGO_ATTR_FOREGROUND:
- fg_color = &((PangoAttrColor *)attr)->color;
- break;
+ case PANGO_ATTR_FOREGROUND:
+ fg_color = &((PangoAttrColor *)attr)->color;
+ break;
- case PANGO_ATTR_BACKGROUND:
- bg_color = &((PangoAttrColor *)attr)->color;
- break;
+ case PANGO_ATTR_BACKGROUND:
+ bg_color = &((PangoAttrColor *)attr)->color;
+ break;
- case PANGO_ATTR_UNDERLINE_COLOR:
- underline_color = &((PangoAttrColor *)attr)->color;
- break;
+ case PANGO_ATTR_UNDERLINE_COLOR:
+ underline_color = &((PangoAttrColor *)attr)->color;
+ break;
- case PANGO_ATTR_OVERLINE_COLOR:
- overline_color = &((PangoAttrColor *)attr)->color;
- break;
+ case PANGO_ATTR_OVERLINE_COLOR:
+ overline_color = &((PangoAttrColor *)attr)->color;
+ break;
- case PANGO_ATTR_STRIKETHROUGH_COLOR:
- strikethrough_color = &((PangoAttrColor *)attr)->color;
- break;
+ case PANGO_ATTR_STRIKETHROUGH_COLOR:
+ strikethrough_color = &((PangoAttrColor *)attr)->color;
+ break;
- case PANGO_ATTR_FOREGROUND_ALPHA:
+ case PANGO_ATTR_FOREGROUND_ALPHA:
fg_alpha = ((PangoAttrInt *)attr)->value;
- break;
+ break;
- case PANGO_ATTR_BACKGROUND_ALPHA:
+ case PANGO_ATTR_BACKGROUND_ALPHA:
bg_alpha = ((PangoAttrInt *)attr)->value;
- break;
+ break;
- default:
- break;
- }
+ default:
+ break;
+ }
}
if (!underline_color)
@@ -1528,17 +1539,17 @@ pango_renderer_default_prepare_run (PangoRenderer *renderer,
/**
* pango_renderer_set_matrix:
- * @renderer: a #PangoRenderer
- * @matrix: (allow-none): a #PangoMatrix, or %NULL to unset any existing matrix.
+ * @renderer: a `PangoRenderer`
+ * @matrix: (allow-none): a `PangoMatrix`, or %NULL to unset any existing matrix.
* (No matrix set is the same as setting the identity matrix.)
*
* Sets the transformation matrix that will be applied when rendering.
*
* Since: 1.8
- **/
+ */
void
pango_renderer_set_matrix (PangoRenderer *renderer,
- const PangoMatrix *matrix)
+ const PangoMatrix *matrix)
{
g_return_if_fail (PANGO_IS_RENDERER_FAST (renderer));
@@ -1548,17 +1559,19 @@ pango_renderer_set_matrix (PangoRenderer *renderer,
/**
* pango_renderer_get_matrix:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
*
* Gets the transformation matrix that will be applied when
- * rendering. See pango_renderer_set_matrix().
+ * rendering.
+ *
+ * See [method@Pango.Renderer.set_matrix].
*
* Return value: (nullable): the matrix, or %NULL if no matrix has
- * been set (which is the same as the identity matrix). The returned
- * matrix is owned by Pango and must not be modified or freed.
+ * been set (which is the same as the identity matrix). The returned
+ * matrix is owned by Pango and must not be modified or freed.
*
* Since: 1.8
- **/
+ */
const PangoMatrix *
pango_renderer_get_matrix (PangoRenderer *renderer)
{
@@ -1569,9 +1582,10 @@ pango_renderer_get_matrix (PangoRenderer *renderer)
/**
* pango_renderer_get_layout:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
*
* Gets the layout currently being rendered using @renderer.
+ *
* Calling this function only makes sense from inside a subclass's
* methods, like in its draw_shape vfunc, for example.
*
@@ -1579,10 +1593,10 @@ pango_renderer_get_matrix (PangoRenderer *renderer)
* rendered.
*
* Return value: (transfer none) (nullable): the layout, or %NULL if
- * no layout is being rendered using @renderer at this time.
+ * no layout is being rendered using @renderer at this time.
*
* Since: 1.20
- **/
+ */
PangoLayout *
pango_renderer_get_layout (PangoRenderer *renderer)
{
@@ -1594,9 +1608,10 @@ pango_renderer_get_layout (PangoRenderer *renderer)
/**
* pango_renderer_get_layout_line:
- * @renderer: a #PangoRenderer
+ * @renderer: a `PangoRenderer`
*
* Gets the layout line currently being rendered using @renderer.
+ *
* Calling this function only makes sense from inside a subclass's
* methods, like in its draw_shape vfunc, for example.
*
@@ -1607,9 +1622,9 @@ pango_renderer_get_layout (PangoRenderer *renderer)
* if no layout line is being rendered using @renderer at this time.
*
* Since: 1.20
- **/
+ */
PangoLayoutLine *
-pango_renderer_get_layout_line (PangoRenderer *renderer)
+pango_renderer_get_layout_line (PangoRenderer *renderer)
{
return renderer->priv->line;
}
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