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added hinting and antialias properties.

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2003-03-27  Sven Neumann  <sven@gimp.org>

	* app/text/gimptext.[ch]: added hinting and antialias properties.

	* app/text/gimptextlayout.c: rewrote some parts using the
	PangoFontMap API. Respect hinting and antialias properties.
	(PangoFT2 does not allow to switch antialias off, so that has no
	effect yet.)

	* app/tools/gimptextoptions.c: added a check button that controls
	hinting.
This commit is contained in:
Sven Neumann
2003-03-27 17:24:53 +00:00
committed by Sven Neumann
parent dafddf1639
commit 10faf8d577
5 changed files with 108 additions and 62 deletions
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12
ChangeLog
View File

@ -1,3 +1,15 @@
2003-03-27 Sven Neumann <sven@gimp.org>
* app/text/gimptext.[ch]: added hinting and antialias properties.
* app/text/gimptextlayout.c: rewrote some parts using the
PangoFontMap API. Respect hinting and antialias properties.
(PangoFT2 does not allow to switch antialias off, so that has no
effect yet.)
* app/tools/gimptextoptions.c: added a check button that controls
hinting.
2003-03-27 Sven Neumann <sven@gimp.org>
* configure.in: require PangoFT2 >= 1.2.0.

46
app/text/gimptext.c
View File

@ -48,13 +48,15 @@ enum
PROP_FONT,
PROP_FONT_SIZE,
PROP_FONT_SIZE_UNIT,
PROP_HINTING,
PROP_ANTIALIAS,
PROP_LANGUAGE,
PROP_COLOR,
PROP_FIXED_WIDTH,
PROP_JUSTIFICATION,
PROP_INDENTATION,
PROP_LINE_SPACING,
PROP_LETTER_SPACING,
PROP_BOX_WIDTH,
PROP_BORDER
};
@ -147,6 +149,16 @@ gimp_text_class_init (GimpTextClass *klass)
"font-size-unit", NULL,
TRUE, GIMP_UNIT_PIXEL,
0);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_HINTING,
"hinting",
N_("Hinting alters the font outline to"
"produce a crisp bitmap at small sizes"),
TRUE,
0);
GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_ANTIALIAS,
"antialias", NULL,
TRUE,
0);
GIMP_CONFIG_INSTALL_PROP_STRING (object_class, PROP_LANGUAGE,
"language", NULL,
language,
@ -155,10 +167,6 @@ gimp_text_class_init (GimpTextClass *klass)
"color", NULL,
&black,
0);
GIMP_CONFIG_INSTALL_PROP_INT (object_class, PROP_FIXED_WIDTH,
"fixed-width", NULL,
0, GIMP_MAX_IMAGE_SIZE, 0,
0);
GIMP_CONFIG_INSTALL_PROP_ENUM (object_class, PROP_JUSTIFICATION,
"justify",
NULL,
@ -180,6 +188,10 @@ gimp_text_class_init (GimpTextClass *klass)
"letter-spacing", NULL,
-8192.0, 8192.0, 0.0,
0);
GIMP_CONFIG_INSTALL_PROP_INT (object_class, PROP_BOX_WIDTH,
"box-width", NULL,
0, GIMP_MAX_IMAGE_SIZE, 0,
0);
/* border does only exist to implement the old text API */
param_spec = g_param_spec_int ("border", NULL, NULL,
@ -236,15 +248,18 @@ gimp_text_get_property (GObject *object,
case PROP_FONT_SIZE_UNIT:
g_value_set_int (value, text->font_size_unit);
break;
case PROP_HINTING:
g_value_set_boolean (value, text->hinting);
break;
case PROP_ANTIALIAS:
g_value_set_boolean (value, text->antialias);
break;
case PROP_LANGUAGE:
g_value_set_string (value, text->language);
break;
case PROP_COLOR:
g_value_set_boxed (value, &text->color);
break;
case PROP_FIXED_WIDTH:
g_value_set_int (value, text->fixed_width);
break;
case PROP_JUSTIFICATION:
g_value_set_enum (value, text->justify);
break;
@ -257,6 +272,9 @@ gimp_text_get_property (GObject *object,
case PROP_LETTER_SPACING:
g_value_set_double (value, text->letter_spacing);
break;
case PROP_BOX_WIDTH:
g_value_set_int (value, text->box_width);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
@ -288,6 +306,12 @@ gimp_text_set_property (GObject *object,
case PROP_FONT_SIZE_UNIT:
text->font_size_unit = g_value_get_int (value);
break;
case PROP_HINTING:
text->hinting = g_value_get_boolean (value);
break;
case PROP_ANTIALIAS:
text->antialias = g_value_get_boolean (value);
break;
case PROP_LANGUAGE:
g_free (text->language);
text->language = g_value_dup_string (value);
@ -296,9 +320,6 @@ gimp_text_set_property (GObject *object,
color = g_value_get_boxed (value);
text->color = *color;
break;
case PROP_FIXED_WIDTH:
text->fixed_width = g_value_get_int (value);
break;
case PROP_JUSTIFICATION:
text->justify = g_value_get_enum (value);
break;
@ -311,6 +332,9 @@ gimp_text_set_property (GObject *object,
case PROP_LETTER_SPACING:
text->letter_spacing = g_value_get_double (value);
break;
case PROP_BOX_WIDTH:
text->box_width = g_value_get_int (value);
break;
case PROP_BORDER:
text->border = g_value_get_int (value);
break;

4
app/text/gimptext.h
View File

@ -40,13 +40,15 @@ struct _GimpText
gchar *font;
gdouble font_size;
GimpUnit font_size_unit;
gboolean hinting;
gboolean antialias;
gchar *language;
GimpRGB color;
GimpTextJustification justify;
gdouble indent;
gdouble line_spacing;
gdouble letter_spacing;
gint fixed_width;
gint box_width;
/* for historical reasons, don't use */
gint border;

93
app/text/gimptextlayout.c
View File

@ -52,17 +52,18 @@ struct _GimpTextLayoutClass
};
static void gimp_text_layout_class_init (GimpTextLayoutClass *klass);
static void gimp_text_layout_init (GimpTextLayout *layout);
static void gimp_text_layout_finalize (GObject *object);
static void gimp_text_layout_class_init (GimpTextLayoutClass *klass);
static void gimp_text_layout_init (GimpTextLayout *layout);
static void gimp_text_layout_finalize (GObject *object);
static void gimp_text_layout_position (GimpTextLayout *layout);
static void gimp_text_layout_position (GimpTextLayout *layout);
static PangoContext * gimp_image_get_pango_context (GimpImage *image);
static PangoContext * gimp_text_get_pango_context (GimpText *text,
gdouble xres,
gdouble yres);
static GQuark gimp_text_context_quark = 0;
static GObjectClass * parent_class = NULL;
static GObjectClass * parent_class = NULL;
GType
@ -142,6 +143,7 @@ gimp_text_layout_new (GimpText *text,
PangoContext *context;
PangoFontDescription *font_desc;
PangoAlignment alignment = PANGO_ALIGN_LEFT;
gdouble xres, yres;
gint size;
g_return_val_if_fail (GIMP_IS_TEXT (text), NULL);
@ -152,6 +154,8 @@ gimp_text_layout_new (GimpText *text,
if (!font_desc)
return NULL;
gimp_image_get_resolution (image, &xres, &yres);
switch (text->font_size_unit)
{
case GIMP_UNIT_PIXEL:
@ -160,14 +164,11 @@ gimp_text_layout_new (GimpText *text,
default:
{
gdouble xres, yres;
gdouble factor;
factor = gimp_unit_get_factor (text->font_size_unit);
g_return_val_if_fail (factor > 0.0, NULL);
gimp_image_get_resolution (image, &xres, &yres);
size = (gdouble) PANGO_SCALE * text->font_size * yres / factor;
}
break;
@ -175,11 +176,7 @@ gimp_text_layout_new (GimpText *text,
pango_font_description_set_size (font_desc, MAX (1, size));
context = gimp_image_get_pango_context (image);
if (text->language)
pango_context_set_language (context,
pango_language_from_string (text->language));
context = gimp_text_get_pango_context (text, xres, yres);
layout = g_object_new (GIMP_TYPE_TEXT_LAYOUT, NULL);
layout->text = g_object_ref (text);
@ -215,8 +212,8 @@ gimp_text_layout_new (GimpText *text,
pango_layout_set_alignment (layout->layout, alignment);
pango_layout_set_width (layout->layout,
text->fixed_width > 0 ?
text->fixed_width * PANGO_SCALE : -1);
text->box_width > 0 ?
text->box_width * PANGO_SCALE : -1);
pango_layout_set_indent (layout->layout, text->indent * PANGO_SCALE);
pango_layout_set_spacing (layout->layout, text->line_spacing * PANGO_SCALE);
@ -294,10 +291,10 @@ gimp_text_layout_render (GimpTextLayout *layout,
static void
gimp_text_layout_position (GimpTextLayout *layout)
{
PangoRectangle ink;
PangoRectangle logical;
gint x1, y1;
gint x2, y2;
PangoRectangle ink;
PangoRectangle logical;
gint x1, y1;
gint x2, y2;
layout->extents.x = 0;
layout->extents.x = 0;
@ -344,38 +341,44 @@ gimp_text_layout_position (GimpTextLayout *layout)
static void
detach_pango_context (GObject *image)
gimp_text_ft2_subst_func (FcPattern *pattern,
gpointer data)
{
g_object_set_qdata (image, gimp_text_context_quark, NULL);
gboolean hinting;
gboolean antialias;
g_object_get (data,
"hinting", &hinting,
"antialias", &antialias,
NULL);
FcPatternAddBool (pattern, FC_HINTING, hinting);
FcPatternAddBool (pattern, FC_ANTIALIAS, antialias);
}
static PangoContext *
gimp_image_get_pango_context (GimpImage *image)
gimp_text_get_pango_context (GimpText *text,
gdouble xres,
gdouble yres)
{
PangoContext *context;
PangoContext *context;
PangoFT2FontMap *fontmap;
if (!gimp_text_context_quark)
gimp_text_context_quark = g_quark_from_static_string ("pango-context");
fontmap = PANGO_FT2_FONT_MAP (pango_ft2_font_map_new ());
pango_ft2_font_map_set_resolution (fontmap, xres, yres);
context = (PangoContext *) g_object_get_qdata (G_OBJECT (image),
gimp_text_context_quark);
pango_ft2_font_map_set_default_substitute (fontmap,
gimp_text_ft2_subst_func,
g_object_ref (text),
(GDestroyNotify) g_object_unref);
if (!context)
{
gdouble xres, yres;
gimp_image_get_resolution (image, &xres, &yres);
context = pango_ft2_font_map_create_context (fontmap);
g_object_unref (fontmap);
context = pango_ft2_get_context (xres, yres);
if (text->language)
pango_context_set_language (context,
pango_language_from_string (text->language));
g_signal_connect_object (image, "resolution_changed",
G_CALLBACK (detach_pango_context),
context, 0);
g_object_set_qdata_full (G_OBJECT (image),
gimp_text_context_quark, context,
(GDestroyNotify) g_object_unref);
}
return g_object_ref (context);
return context;
}

15
app/tools/gimptextoptions.c
View File

@ -230,7 +230,7 @@ gimp_text_options_gui (GimpToolOptions *tool_options)
vbox = gimp_tool_options_gui (tool_options);
table = gtk_table_new (7, 3, FALSE);
table = gtk_table_new (8, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 2);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
@ -267,29 +267,34 @@ gimp_text_options_gui (GimpToolOptions *tool_options)
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (menu);
button = gimp_prop_check_button_new (config, "hinting", _("_Hinting"));
gtk_table_attach (GTK_TABLE (table), button, 1, 3, 3, 4,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (button);
button = gimp_prop_color_button_new (config, "color",
_("Text Color"),
-1, 24, GIMP_COLOR_AREA_FLAT);
gimp_color_panel_set_context (GIMP_COLOR_PANEL (button),
GIMP_CONTEXT (options));
gimp_table_attach_aligned (GTK_TABLE (table), 0, 3,
gimp_table_attach_aligned (GTK_TABLE (table), 0, 4,
_("Color:"), 1.0, 0.5,
button, 1, FALSE);
box = gimp_prop_enum_stock_box_new (config, "justify", "gtk-justify", 0, 0);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 4,
gimp_table_attach_aligned (GTK_TABLE (table), 0, 5,
_("Justify:"), 1.0, 0.5,
box, 2, TRUE);
spinbutton = gimp_prop_spin_button_new (config, "indent", 1.0, 10.0, 1);
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), 5);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 5,
gimp_table_attach_aligned (GTK_TABLE (table), 0, 6,
_("Indent:"), 1.0, 0.5,
spinbutton, 1, FALSE);
spinbutton = gimp_prop_spin_button_new (config, "line-spacing", 1.0, 10.0, 1);
gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), 5);
gimp_table_attach_stock (GTK_TABLE (table), 6,
gimp_table_attach_stock (GTK_TABLE (table), 7,
_("Line\nSpacing:"), 0.0,
spinbutton, 1, GIMP_STOCK_LINE_SPACING);