* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
#include <string.h>
#include "gtkprogressbar.h"
-#include "gtkorientable.h"
+#include "gtkorientableprivate.h"
#include "gtkprivate.h"
#include "gtkintl.h"
+#include "a11y/gtkprogressbaraccessible.h"
+
+/**
+ * SECTION:gtkprogressbar
+ * @Short_description: A widget which indicates progress visually
+ * @Title: GtkProgressBar
+ *
+ * The #GtkProgressBar is typically used to display the progress of a long
+ * running operation. It provides a visual clue that processing
+ * is underway. The #GtkProgressBar can be used in two different
+ * modes: percentage mode and activity mode.
+ *
+ * When an application can determine how much work needs to take place
+ * (e.g. read a fixed number of bytes from a file) and can monitor its
+ * progress, it can use the #GtkProgressBar in percentage mode and the user
+ * sees a growing bar indicating the percentage of the work that has
+ * been completed. In this mode, the application is required to call
+ * gtk_progress_bar_set_fraction() periodically to update the progress bar.
+ *
+ * When an application has no accurate way of knowing the amount of work
+ * to do, it can use the #GtkProgressBar in activity mode, which shows
+ * activity by a block moving back and forth within the progress area. In
+ * this mode, the application is required to call gtk_progress_bar_pulse()
+ * periodically to update the progress bar.
+ *
+ * There is quite a bit of flexibility provided to control the appearance
+ * of the #GtkProgressBar. Functions are provided to control the
+ * orientation of the bar, optional text can be displayed along with
+ * the bar, and the step size used in activity mode can be set.
+ */
#define MIN_HORIZONTAL_BAR_WIDTH 150
#define MIN_HORIZONTAL_BAR_HEIGHT 20
struct _GtkProgressBarPrivate
{
- GtkOrientation orientation;
-
gchar *text;
gdouble fraction;
gdouble pulse_fraction;
- guint blocks;
- gint in_block;
-
- gint activity_pos;
+ double activity_pos;
guint activity_blocks;
- guint activity_step;
+
+ GtkOrientation orientation;
guint activity_dir : 1;
guint activity_mode : 1;
PROP_ELLIPSIZE
};
-static void gtk_progress_bar_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec);
-static void gtk_progress_bar_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec);
-static void gtk_progress_bar_size_request (GtkWidget *widget,
- GtkRequisition *requisition);
-static void gtk_progress_bar_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation);
-static void gtk_progress_bar_real_update (GtkProgressBar *progress);
-static gboolean gtk_progress_bar_draw (GtkWidget *widget,
- cairo_t *cr);
-static void gtk_progress_bar_act_mode_enter (GtkProgressBar *progress);
-static void gtk_progress_bar_realize (GtkWidget *widget);
-static void gtk_progress_bar_finalize (GObject *object);
-static void gtk_progress_bar_set_orientation (GtkProgressBar *progress,
- GtkOrientation orientation);
+static void gtk_progress_bar_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_progress_bar_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void gtk_progress_bar_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural);
+static void gtk_progress_bar_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural);
+
+static void gtk_progress_bar_real_update (GtkProgressBar *progress);
+static gboolean gtk_progress_bar_draw (GtkWidget *widget,
+ cairo_t *cr);
+static void gtk_progress_bar_act_mode_enter (GtkProgressBar *progress);
+static void gtk_progress_bar_finalize (GObject *object);
+static void gtk_progress_bar_set_orientation (GtkProgressBar *progress,
+ GtkOrientation orientation);
G_DEFINE_TYPE_WITH_CODE (GtkProgressBar, gtk_progress_bar, GTK_TYPE_WIDGET,
G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL))
gobject_class->get_property = gtk_progress_bar_get_property;
gobject_class->finalize = gtk_progress_bar_finalize;
- widget_class->realize = gtk_progress_bar_realize;
widget_class->draw = gtk_progress_bar_draw;
- widget_class->size_request = gtk_progress_bar_size_request;
- widget_class->size_allocate = gtk_progress_bar_size_allocate;
+ widget_class->get_preferred_width = gtk_progress_bar_get_preferred_width;
+ widget_class->get_preferred_height = gtk_progress_bar_get_preferred_height;
- g_object_class_override_property (gobject_class,
- PROP_ORIENTATION,
- "orientation");
+ g_object_class_override_property (gobject_class, PROP_ORIENTATION, "orientation");
g_object_class_install_property (gobject_class,
PROP_INVERTED,
NULL,
GTK_PARAM_READWRITE));
+ /**
+ * GtkProgressBar:show-text:
+ *
+ * Sets whether the progress bar will show text superimposed
+ * over the bar. The shown text is either the value of
+ * the #GtkProgressBar:text property or, if that is %NULL,
+ * the #GtkProgressBar:fraction value, as a percentage.
+ *
+ * To make a progress bar that is styled and sized suitably for containing
+ * text (even if the actual text is blank), set #GtkProgressBar:show-text to
+ * %TRUE and #GtkProgressBar:text to the empty string (not %NULL).
+ *
+ * Since: 3.0
+ */
g_object_class_install_property (gobject_class,
PROP_SHOW_TEXT,
g_param_spec_boolean ("show-text",
/**
* GtkProgressBar:ellipsize:
*
- * The preferred place to ellipsize the string, if the progressbar does
+ * The preferred place to ellipsize the string, if the progress bar does
* not have enough room to display the entire string, specified as a
- * #PangoEllisizeMode.
+ * #PangoEllipsizeMode.
*
* Note that setting this property to a value other than
- * %PANGO_ELLIPSIZE_NONE has the side-effect that the progressbar requests
- * only enough space to display the ellipsis "...". Another means to set a
- * progressbar's width is gtk_widget_set_size_request().
+ * %PANGO_ELLIPSIZE_NONE has the side-effect that the progress bar requests
+ * only enough space to display the ellipsis ("..."). Another means to set a
+ * progress bar's width is gtk_widget_set_size_request().
*
* Since: 2.6
*/
G_PARAM_READWRITE));
g_type_class_add_private (class, sizeof (GtkProgressBarPrivate));
+
+ gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_PROGRESS_BAR_ACCESSIBLE);
}
static void
GtkProgressBarPrivate);
priv = pbar->priv;
- priv->blocks = 10;
- priv->in_block = -1;
priv->orientation = GTK_ORIENTATION_HORIZONTAL;
priv->inverted = FALSE;
priv->pulse_fraction = 0.1;
priv->activity_pos = 0;
priv->activity_dir = 1;
- priv->activity_step = 3;
priv->activity_blocks = 5;
priv->ellipsize = PANGO_ELLIPSIZE_NONE;
priv->show_text = FALSE;
priv->text = NULL;
priv->fraction = 0.0;
-}
-
-static void
-gtk_progress_bar_realize (GtkWidget *widget)
-{
- GtkAllocation allocation;
- GdkWindow *window;
- GdkWindowAttr attributes;
- gint attributes_mask;
-
- gtk_widget_set_realized (widget, TRUE);
-
- gtk_widget_get_allocation (widget, &allocation);
- attributes.window_type = GDK_WINDOW_CHILD;
- attributes.x = allocation.x;
- attributes.y = allocation.y;
- attributes.width = allocation.width;
- attributes.height = allocation.height;
- attributes.wclass = GDK_INPUT_OUTPUT;
- attributes.visual = gtk_widget_get_visual (widget);
- attributes.event_mask = gtk_widget_get_events (widget);
- attributes.event_mask |= GDK_EXPOSURE_MASK;
-
- attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
- window = gdk_window_new (gtk_widget_get_parent_window (widget),
- &attributes, attributes_mask);
- gtk_widget_set_window (widget, window);
- gdk_window_set_user_data (window, widget);
-
- gtk_widget_style_attach (widget);
- gtk_style_set_background (gtk_widget_get_style (widget),
- window, GTK_STATE_ACTIVE);
+ gtk_widget_set_has_window (GTK_WIDGET (pbar), FALSE);
}
static void
}
}
+/**
+ * gtk_progress_bar_new:
+ *
+ * Creates a new #GtkProgressBar.
+ *
+ * Returns: a #GtkProgressBar.
+ */
GtkWidget*
gtk_progress_bar_new (void)
{
if (priv->activity_mode)
{
- GtkAllocation allocation;
- GtkStyle *style;
- guint size;
-
- gtk_widget_get_allocation (widget, &allocation);
- style = gtk_widget_get_style (widget);
-
/* advance the block */
- if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ if (priv->activity_dir == 0)
{
- /* Update our activity step. */
- priv->activity_step = allocation.width * priv->pulse_fraction;
-
- size = MAX (2, allocation.width / priv->activity_blocks);
-
- if (priv->activity_dir == 0)
- {
- priv->activity_pos += priv->activity_step;
- if (priv->activity_pos + size >= allocation.width - style->xthickness)
- {
- priv->activity_pos = allocation.width - style->xthickness - size;
- priv->activity_dir = 1;
- }
- }
- else
+ priv->activity_pos += priv->pulse_fraction;
+ if (priv->activity_pos > 1.0)
{
- priv->activity_pos -= priv->activity_step;
- if (priv->activity_pos <= style->xthickness)
- {
- priv->activity_pos = style->xthickness;
- priv->activity_dir = 0;
- }
+ priv->activity_pos = 1.0;
+ priv->activity_dir = 1;
}
}
else
{
- /* Update our activity step. */
- priv->activity_step = allocation.height * priv->pulse_fraction;
-
- size = MAX (2, allocation.height / priv->activity_blocks);
-
- if (priv->activity_dir == 0)
- {
- priv->activity_pos += priv->activity_step;
- if (priv->activity_pos + size >= allocation.height - style->ythickness)
- {
- priv->activity_pos = allocation.height - style->ythickness - size;
- priv->activity_dir = 1;
- }
- }
- else
+ priv->activity_pos -= priv->pulse_fraction;
+ if (priv->activity_pos <= 0)
{
- priv->activity_pos -= priv->activity_step;
- if (priv->activity_pos <= style->ythickness)
- {
- priv->activity_pos = style->ythickness;
- priv->activity_dir = 0;
- }
+ priv->activity_pos = 0;
+ priv->activity_dir = 0;
}
}
}
}
static void
-gtk_progress_bar_size_request (GtkWidget *widget,
- GtkRequisition *requisition)
+gtk_progress_bar_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
{
GtkProgressBar *pbar;
GtkProgressBarPrivate *priv;
- GtkStyle *style;
+ GtkStyleContext *style_context;
+ GtkStateFlags state;
+ GtkBorder padding;
gchar *buf;
PangoRectangle logical_rect;
PangoLayout *layout;
- gint width, height;
- gint xspacing, yspacing;
- gint min_width, min_height;
+ gint width;
+ gint xspacing;
+ gint min_width;
g_return_if_fail (GTK_IS_PROGRESS_BAR (widget));
- g_return_if_fail (requisition != NULL);
- style = gtk_widget_get_style (widget);
+ style_context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+ gtk_style_context_get_padding (style_context, state, &padding);
+
gtk_widget_style_get (widget,
"xspacing", &xspacing,
- "yspacing", &yspacing,
NULL);
pbar = GTK_PROGRESS_BAR (widget);
priv = pbar->priv;
- width = 2 * style->xthickness + xspacing;
- height = 2 * style->ythickness + yspacing;
+ width = padding.left + padding.right + xspacing;
if (priv->show_text)
{
/* The minimum size for ellipsized text is ~ 3 chars */
context = pango_layout_get_context (layout);
- metrics = pango_context_get_metrics (context, style->font_desc, pango_context_get_language (context));
+ metrics = pango_context_get_metrics (context,
+ pango_context_get_font_description (context),
+ pango_context_get_language (context));
char_width = pango_font_metrics_get_approximate_char_width (metrics);
pango_font_metrics_unref (metrics);
else
width += logical_rect.width;
- height += logical_rect.height;
-
g_object_unref (layout);
g_free (buf);
}
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
gtk_widget_style_get (widget,
"min-horizontal-bar-width", &min_width,
- "min-horizontal-bar-height", &min_height,
NULL);
else
gtk_widget_style_get (widget,
"min-vertical-bar-width", &min_width,
- "min-vertical-bar-height", &min_height,
NULL);
- requisition->width = MAX (min_width, width);
- requisition->height = MAX (min_height, height);
+ *minimum = *natural = MAX (min_width, width);
}
static void
-gtk_progress_bar_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation)
+gtk_progress_bar_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
{
- gtk_widget_set_allocation (widget, allocation);
+ GtkProgressBar *pbar;
+ GtkProgressBarPrivate *priv;
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkBorder padding;
+ gchar *buf;
+ PangoRectangle logical_rect;
+ PangoLayout *layout;
+ gint height;
+ gint yspacing;
+ gint min_height;
+
+ g_return_if_fail (GTK_IS_PROGRESS_BAR (widget));
+
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+ gtk_style_context_get_padding (context, state, &padding);
+
+ gtk_widget_style_get (widget,
+ "yspacing", &yspacing,
+ NULL);
+
+ pbar = GTK_PROGRESS_BAR (widget);
+ priv = pbar->priv;
+
+ height = padding.top + padding.bottom + yspacing;
- if (gtk_widget_get_realized (widget))
- gdk_window_move_resize (gtk_widget_get_window (widget),
- allocation->x, allocation->y,
- allocation->width, allocation->height);
+ if (priv->show_text)
+ {
+ buf = get_current_text (pbar);
+ layout = gtk_widget_create_pango_layout (widget, buf);
+
+ pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
+
+ height += logical_rect.height;
+
+ g_object_unref (layout);
+ g_free (buf);
+ }
+
+ if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
+ gtk_widget_style_get (widget,
+ "min-horizontal-bar-height", &min_height,
+ NULL);
+ else
+ gtk_widget_style_get (widget,
+ "min-vertical-bar-height", &min_height,
+ NULL);
+
+ *minimum = *natural = MAX (min_height, height);
}
static void
gtk_progress_bar_act_mode_enter (GtkProgressBar *pbar)
{
GtkProgressBarPrivate *priv = pbar->priv;
- GtkAllocation allocation;
- GtkStyle *style;
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkBorder padding;
GtkWidget *widget = GTK_WIDGET (pbar);
GtkOrientation orientation;
gboolean inverted;
- style = gtk_widget_get_style (widget);
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+ gtk_style_context_get_padding (context, state, &padding);
orientation = priv->orientation;
inverted = priv->inverted;
{
if (!inverted)
{
- priv->activity_pos = style->xthickness;
+ priv->activity_pos = 0.0;
priv->activity_dir = 0;
}
else
{
- gtk_widget_get_allocation (widget, &allocation);
- priv->activity_pos = allocation.width - style->xthickness -
- (allocation.height - style->ythickness * 2);
+ priv->activity_pos = 1.0;
priv->activity_dir = 1;
}
}
{
if (!inverted)
{
- priv->activity_pos = style->ythickness;
+ priv->activity_pos = 0.0;
priv->activity_dir = 0;
}
else
{
- gtk_widget_get_allocation (widget, &allocation);
- priv->activity_pos = allocation.height - style->ythickness -
- (allocation.width - style->xthickness * 2);
+ priv->activity_pos = 1.0;
priv->activity_dir = 1;
}
}
gint *amount)
{
GtkProgressBarPrivate *priv = pbar->priv;
- GtkAllocation allocation;
GtkWidget *widget = GTK_WIDGET (pbar);
+ GtkStyleContext *context;
+ GtkAllocation allocation;
+ GtkStateFlags state;
+ GtkBorder padding;
+ int size;
- *offset = priv->activity_pos;
-
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_style_context_get_state (context);
gtk_widget_get_allocation (widget, &allocation);
+ gtk_style_context_get_padding (context, state, &padding);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
- *amount = MAX (2, allocation.width / priv->activity_blocks);
+ size = allocation.width - padding.left - padding.top;
else
- *amount = MAX (2, allocation.height / priv->activity_blocks);
+ size = allocation.height - padding.left - padding.top;
+
+ *amount = MAX (2, size / priv->activity_blocks);
+ *offset = priv->activity_pos * (size - *amount);
}
static void
int width,
int height)
{
- GtkStyle *style;
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkBorder padding;
GtkWidget *widget = GTK_WIDGET (pbar);
GdkRectangle area;
- style = gtk_widget_get_style (widget);
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+ gtk_style_context_get_padding (context, state, &padding);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
gtk_progress_bar_get_activity (pbar, orientation, &area.x, &area.width);
- area.y = style->ythickness;
- area.height = height - 2 * style->ythickness;
+ area.y = padding.top;
+ area.height = height - padding.top - padding.bottom;
}
else
{
gtk_progress_bar_get_activity (pbar, orientation, &area.y, &area.height);
- area.x = style->xthickness;
- area.width = width - 2 * style->xthickness;
+ area.x = padding.left;
+ area.width = width - padding.left - padding.right;
}
- gtk_cairo_paint_box (style,
- cr,
- GTK_STATE_PRELIGHT, GTK_SHADOW_OUT,
- widget, "bar",
- area.x, area.y, area.width, area.height);
+ gtk_style_context_save (context);
+ gtk_style_context_add_class (context, GTK_STYLE_CLASS_PROGRESSBAR);
+ gtk_style_context_add_class (context, GTK_STYLE_CLASS_PULSE);
+
+ gtk_render_activity (context, cr, area.x, area.y, area.width, area.height);
+
+ gtk_style_context_restore (context);
}
static void
int width,
int height)
{
- GtkStyle *style;
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkBorder padding;
GtkWidget *widget = GTK_WIDGET (pbar);
GdkRectangle area;
if (amount <= 0)
return;
- style = gtk_widget_get_style (widget);
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+ gtk_style_context_get_padding (context, state, &padding);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
area.width = amount;
- area.height = height - style->ythickness * 2;
- area.y = style->ythickness;
+ area.height = height - padding.top - padding.bottom;
+ area.y = padding.top;
- area.x = style->xthickness;
- if (inverted)
- area.x = width - amount - area.x;
+ if (!inverted)
+ area.x = padding.left;
+ else
+ area.x = width - amount - padding.right;
}
else
{
- area.width = width - style->xthickness * 2;
+ area.width = width - padding.left - padding.right;
area.height = amount;
- area.x = style->xthickness;
+ area.x = padding.left;
- area.y = style->ythickness;
- if (inverted)
- area.y = height - amount - area.y;
+ if (!inverted)
+ area.y = padding.top;
+ else
+ area.y = height - amount - padding.bottom;
}
- gtk_cairo_paint_box (style,
- cr,
- GTK_STATE_PRELIGHT, GTK_SHADOW_OUT,
- widget, "bar",
- area.x, area.y, area.width, area.height);
+ gtk_style_context_save (context);
+ gtk_style_context_add_class (context, GTK_STYLE_CLASS_PROGRESSBAR);
+
+ gtk_render_activity (context, cr, area.x, area.y, area.width, area.height);
+
+ gtk_style_context_restore (context);
}
static void
int height)
{
GtkProgressBarPrivate *priv = pbar->priv;
- GtkStyle *style;
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkBorder padding;
GtkWidget *widget = GTK_WIDGET (pbar);
gint x;
gint y;
gfloat text_xalign = 0.5;
gfloat text_yalign = 0.5;
- style = gtk_widget_get_style (widget);
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+ gtk_style_context_get_padding (context, state, &padding);
if (gtk_widget_get_direction (widget) != GTK_TEXT_DIR_LTR)
text_xalign = 1.0 - text_xalign;
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
- x = style->xthickness + 1 + text_xalign * (width - 2 * style->xthickness - 2 - logical_rect.width);
-
- y = style->ythickness + 1 + text_yalign * (height - 2 * style->ythickness - 2 - logical_rect.height);
+ x = padding.left + 1 + text_xalign * (width - padding.left - padding.right - 2 - logical_rect.width);
+ y = padding.top + 1 + text_yalign * (height - padding.top - padding.bottom - 2 - logical_rect.height);
- rect.x = style->xthickness;
- rect.y = style->ythickness;
- rect.width = width - 2 * style->xthickness;
- rect.height = height - 2 * style->ythickness;
+ rect.x = padding.left;
+ rect.y = padding.top;
+ rect.width = width - padding.left - padding.right;
+ rect.height = height - padding.top - padding.bottom;
prelight_clip = start_clip = end_clip = rect;
}
}
+ gtk_style_context_save (context);
+ gtk_style_context_add_class (context, GTK_STYLE_CLASS_TROUGH);
+
if (start_clip.width > 0 && start_clip.height > 0)
{
cairo_save (cr);
gdk_cairo_rectangle (cr, &start_clip);
cairo_clip (cr);
- gtk_cairo_paint_layout (style,
- cr,
- GTK_STATE_NORMAL,
- FALSE,
- widget,
- "progressbar",
- x, y,
- layout);
+
+ gtk_render_layout (context, cr, x, y, layout);
cairo_restore (cr);
}
cairo_save (cr);
gdk_cairo_rectangle (cr, &end_clip);
cairo_clip (cr);
- gtk_cairo_paint_layout (style,
- cr,
- GTK_STATE_NORMAL,
- FALSE,
- widget,
- "progressbar",
- x, y,
- layout);
+
+ gtk_render_layout (context, cr, x, y, layout);
cairo_restore (cr);
}
+ gtk_style_context_restore (context);
+
cairo_save (cr);
gdk_cairo_rectangle (cr, &prelight_clip);
cairo_clip (cr);
- gtk_cairo_paint_layout (style,
- cr,
- GTK_STATE_PRELIGHT,
- FALSE,
- widget,
- "progressbar",
- x, y,
- layout);
+
+ gtk_style_context_save (context);
+ gtk_style_context_add_class (context, GTK_STYLE_CLASS_PROGRESSBAR);
+
+ gtk_render_layout (context, cr, x, y, layout);
+
+ gtk_style_context_restore (context);
cairo_restore (cr);
g_object_unref (layout);
GtkProgressBarPrivate *priv = pbar->priv;
GtkOrientation orientation;
gboolean inverted;
- GtkStyle *style;
+ GtkStyleContext *context;
+ GtkStateFlags state;
+ GtkBorder padding;
int width, height;
- style = gtk_widget_get_style (widget);
+ context = gtk_widget_get_style_context (widget);
+ state = gtk_widget_get_state_flags (widget);
+ gtk_style_context_get_padding (context, state, &padding);
orientation = priv->orientation;
inverted = priv->inverted;
width = gtk_widget_get_allocated_width (widget);
height = gtk_widget_get_allocated_height (widget);
- gtk_cairo_paint_box (style,
- cr,
- GTK_STATE_NORMAL, GTK_SHADOW_IN,
- widget, "trough",
- 0, 0,
- width, height);
+ gtk_style_context_save (context);
+ gtk_style_context_add_class (context, GTK_STYLE_CLASS_TROUGH);
+
+ gtk_render_background (context, cr, 0, 0, width, height);
+ gtk_render_frame (context, cr, 0, 0, width, height);
+
+ gtk_style_context_restore (context);
if (priv->activity_mode)
{
gint space;
if (orientation == GTK_ORIENTATION_HORIZONTAL)
- space = width - 2 * style->xthickness;
+ space = width - padding.left - padding.right;
else
- space = height - 2 * style->ythickness;
+ space = height - padding.top - padding.bottom;
amount = space * gtk_progress_bar_get_fraction (pbar);
if (priv->activity_mode)
gtk_progress_bar_act_mode_enter (pbar);
- if (gtk_widget_is_drawable (GTK_WIDGET (pbar)))
- gtk_widget_queue_resize (GTK_WIDGET (pbar));
+ gtk_widget_queue_resize (GTK_WIDGET (pbar));
}
}
* Causes the progress bar to "fill in" the given fraction
* of the bar. The fraction should be between 0.0 and 1.0,
* inclusive.
- *
- **/
+ */
void
gtk_progress_bar_set_fraction (GtkProgressBar *pbar,
gdouble fraction)
priv = pbar->priv;
- priv->fraction = fraction;
+ priv->fraction = CLAMP(fraction, 0.0, 1.0);
gtk_progress_bar_set_activity_mode (pbar, FALSE);
gtk_progress_bar_real_update (pbar);
* gtk_progress_bar_pulse:
* @pbar: a #GtkProgressBar
*
- * Indicates that some progress is made, but you don't know how much.
+ * Indicates that some progress has been made, but you don't know how much.
* Causes the progress bar to enter "activity mode," where a block
* bounces back and forth. Each call to gtk_progress_bar_pulse()
* causes the block to move by a little bit (the amount of movement
* per pulse is determined by gtk_progress_bar_set_pulse_step()).
- **/
+ */
void
gtk_progress_bar_pulse (GtkProgressBar *pbar)
{
* @text: (allow-none): a UTF-8 string, or %NULL
*
* Causes the given @text to appear superimposed on the progress bar.
- **/
+ *
+ * If @text is %NULL and #GtkProgressBar:show-text is %TRUE, the current
+ * value of #GtkProgressBar:fraction will be displayed as a percentage.
+ *
+ * If @text is non-%NULL and #GtkProgressBar:show-text is %TRUE, the text will
+ * be displayed. In this case, it will not display the progress percentage.
+ * If @text is the empty string, the progress bar will still be styled and sized
+ * suitably for containing text, as long as #GtkProgressBar:show-text is %TRUE.
+ */
void
gtk_progress_bar_set_text (GtkProgressBar *pbar,
const gchar *text)
priv = pbar->priv;
+ /* Don't notify again if nothing's changed. */
+ if (g_strcmp0 (priv->text, text) == 0)
+ return;
+
g_free (priv->text);
- priv->text = text && *text ? g_strdup (text) : NULL;
+ priv->text = g_strdup (text);
- if (gtk_widget_is_drawable (GTK_WIDGET (pbar)))
- gtk_widget_queue_resize (GTK_WIDGET (pbar));
+ gtk_widget_queue_resize (GTK_WIDGET (pbar));
g_object_notify (G_OBJECT (pbar), "text");
}
* @pbar: a #GtkProgressBar
* @show_text: whether to show superimposed text
*
- * Sets whether the progressbar will show text superimposed
+ * Sets whether the progress bar will show text superimposed
* over the bar. The shown text is either the value of
- * the #GtkProgressBar::text property or, if that is %NULL,
- * the #GtkProgressBar::fraction value, as a percentage.
+ * the #GtkProgressBar:text property or, if that is %NULL,
+ * the #GtkProgressBar:fraction value, as a percentage.
+ *
+ * To make a progress bar that is styled and sized suitably for containing
+ * text (even if the actual text is blank), set #GtkProgressBar:show-text to
+ * %TRUE and #GtkProgressBar:text to the empty string (not %NULL).
*
* Since: 3.0
*/
{
priv->show_text = show_text;
- if (gtk_widget_is_drawable (GTK_WIDGET (pbar)))
- gtk_widget_queue_resize (GTK_WIDGET (pbar));
+ gtk_widget_queue_resize (GTK_WIDGET (pbar));
g_object_notify (G_OBJECT (pbar), "show-text");
}
* gtk_progress_bar_get_show_text:
* @pbar: a #GtkProgressBar
*
- * Gets the value of the #GtkProgressBar::show-text property.
+ * Gets the value of the #GtkProgressBar:show-text property.
* See gtk_progress_bar_set_show_text().
*
* Returns: %TRUE if text is shown in the progress bar
*
* Sets the fraction of total progress bar length to move the
* bouncing block for each call to gtk_progress_bar_pulse().
- **/
+ */
void
gtk_progress_bar_set_pulse_step (GtkProgressBar *pbar,
gdouble fraction)
if (priv->orientation != orientation)
{
priv->orientation = orientation;
+ _gtk_orientable_set_style_classes (GTK_ORIENTABLE (pbar));
- if (gtk_widget_is_drawable (GTK_WIDGET (pbar)))
- gtk_widget_queue_resize (GTK_WIDGET (pbar));
+ gtk_widget_queue_resize (GTK_WIDGET (pbar));
}
}
{
priv->inverted = inverted;
- if (gtk_widget_is_drawable (GTK_WIDGET (pbar)))
- gtk_widget_queue_resize (GTK_WIDGET (pbar));
+ gtk_widget_queue_resize (GTK_WIDGET (pbar));
g_object_notify (G_OBJECT (pbar), "inverted");
}
*
* Return value: text, or %NULL; this string is owned by the widget
* and should not be modified or freed.
- **/
-G_CONST_RETURN gchar*
+ */
+const gchar*
gtk_progress_bar_get_text (GtkProgressBar *pbar)
{
g_return_val_if_fail (GTK_IS_PROGRESS_BAR (pbar), NULL);
* Returns the current fraction of the task that's been completed.
*
* Return value: a fraction from 0.0 to 1.0
- **/
+ */
gdouble
gtk_progress_bar_get_fraction (GtkProgressBar *pbar)
{
* gtk_progress_bar_get_pulse_step:
* @pbar: a #GtkProgressBar
*
- * Retrieves the pulse step set with gtk_progress_bar_set_pulse_step()
+ * Retrieves the pulse step set with gtk_progress_bar_set_pulse_step().
*
* Return value: a fraction from 0.0 to 1.0
- **/
+ */
gdouble
gtk_progress_bar_get_pulse_step (GtkProgressBar *pbar)
{
* gtk_progress_bar_get_inverted:
* @pbar: a #GtkProgressBar
*
- * Gets the value set by gtk_progress_bar_set_inverted()
+ * Gets the value set by gtk_progress_bar_set_inverted().
*
* Return value: %TRUE if the progress bar is inverted
*/
* if there is not enough space to render the entire string.
*
* Since: 2.6
- **/
+ */
void
gtk_progress_bar_set_ellipsize (GtkProgressBar *pbar,
PangoEllipsizeMode mode)
* gtk_progress_bar_get_ellipsize:
* @pbar: a #GtkProgressBar
*
- * Returns the ellipsizing position of the progressbar.
+ * Returns the ellipsizing position of the progress bar.
* See gtk_progress_bar_set_ellipsize().
*
* Return value: #PangoEllipsizeMode
*
* Since: 2.6
- **/
+ */
PangoEllipsizeMode
gtk_progress_bar_get_ellipsize (GtkProgressBar *pbar)
{
projects / ~andy / gtk / blobdiff