* 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
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;
GTK_PARAM_READWRITE));
/**
- * GtkProgressBar:show_text:
+ * GtkProgressBar:show-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
*/
/**
* 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;
if (priv->activity_mode)
{
- GtkAllocation allocation;
- GtkStyleContext *context;
- GtkStateFlags state;
- GtkBorder padding;
- guint size;
-
- gtk_widget_get_allocation (widget, &allocation);
- context = gtk_widget_get_style_context (widget);
- state = gtk_widget_get_state_flags (widget);
- gtk_style_context_get_padding (context, state, &padding);
-
/* 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 - padding.left)
- {
- priv->activity_pos = allocation.width - padding.left - 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 <= padding.left)
- {
- priv->activity_pos = padding.left;
- 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 - padding.top)
- {
- priv->activity_pos = allocation.height - padding.top - 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 <= padding.top)
- {
- priv->activity_pos = padding.top;
- priv->activity_dir = 0;
- }
+ priv->activity_pos = 0;
+ priv->activity_dir = 0;
}
}
}
if (priv->ellipsize)
{
- const PangoFontDescription *font_desc;
PangoContext *context;
PangoFontMetrics *metrics;
gint char_width;
/* The minimum size for ellipsized text is ~ 3 chars */
context = pango_layout_get_context (layout);
- font_desc = gtk_style_context_get_font (style_context, state);
- metrics = pango_context_get_metrics (context, 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);
gtk_progress_bar_act_mode_enter (GtkProgressBar *pbar)
{
GtkProgressBarPrivate *priv = pbar->priv;
- GtkAllocation allocation;
GtkStyleContext *context;
GtkStateFlags state;
GtkBorder padding;
{
if (!inverted)
{
- priv->activity_pos = padding.left;
+ priv->activity_pos = 0.0;
priv->activity_dir = 0;
}
else
{
- gtk_widget_get_allocation (widget, &allocation);
- priv->activity_pos = allocation.width - padding.left -
- (allocation.height - padding.top - padding.bottom);
+ priv->activity_pos = 1.0;
priv->activity_dir = 1;
}
}
{
if (!inverted)
{
- priv->activity_pos = padding.top;
+ priv->activity_pos = 0.0;
priv->activity_dir = 0;
}
else
{
- gtk_widget_get_allocation (widget, &allocation);
- priv->activity_pos = allocation.height - padding.top -
- (allocation.width - padding.left - padding.right);
+ 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
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);
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;
gtk_render_background (context, cr, 0, 0, width, height);
gtk_render_frame (context, cr, 0, 0, width, height);
- gtk_style_context_get_padding (context, state, &padding);
-
gtk_style_context_restore (context);
if (priv->activity_mode)
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)
GtkOrientation orientation)
{
GtkProgressBarPrivate *priv = pbar->priv;
- GtkStyleContext *context;
if (priv->orientation != orientation)
{
priv->orientation = orientation;
- context = gtk_widget_get_style_context (GTK_WIDGET (pbar));
-
- if (pbar->priv->orientation == GTK_ORIENTATION_VERTICAL)
- {
- gtk_style_context_add_class (context, GTK_STYLE_CLASS_VERTICAL);
- gtk_style_context_remove_class (context, GTK_STYLE_CLASS_HORIZONTAL);
- }
- else
- {
- gtk_style_context_add_class (context, GTK_STYLE_CLASS_HORIZONTAL);
- gtk_style_context_remove_class (context, GTK_STYLE_CLASS_VERTICAL);
- }
+ _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)
{