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Add optional movement on push to buttons (based on patch from Soeren

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Sat Aug 25 19:02:39 2001  Owen Taylor  <otaylor@redhat.com>

        * gtk/gtkbutton.[ch] gtk/gtktogglebutton.c: Add optional movement
        on push to buttons (based on patch from Soeren Sandmann, #54720)

          - Add child_displacement_x/y style properties to control how far the
            child moves when the button is depressed.

          - Add non-exported function _gtk_button_set_depressed to clean
            up the handling of the in/out shadow and separate it frmo
            widget->state.

          - Lots of code cleanup and simplification of state handling
            for GtkButton/GtkToggleButton.

        * tests/testgtkrc: Set the x/y displacement to 1 to provide a test
        of button movement. testgtk + testgtkrc == test ugly GTK+, as always.
This commit is contained in:
Owen Taylor
2001-08-25 23:11:46 +00:00
committed by Owen Taylor
parent 8de6598f6a
commit b94e6c0a80
11 changed files with 246 additions and 167 deletions
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153
gtk/gtkbutton.c
View File

@ -97,9 +97,8 @@ static void gtk_button_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_real_button_pressed (GtkButton *button);
static void gtk_real_button_released (GtkButton *button);
static void gtk_real_button_enter (GtkButton *button);
static void gtk_real_button_leave (GtkButton *button);
static void gtk_real_button_activate (GtkButton *button);
static void gtk_button_update_state (GtkButton *button);
static GtkType gtk_button_child_type (GtkContainer *container);
static void gtk_button_finish_activate (GtkButton *button,
@ -169,8 +168,8 @@ gtk_button_class_init (GtkButtonClass *klass)
klass->pressed = gtk_real_button_pressed;
klass->released = gtk_real_button_released;
klass->clicked = NULL;
klass->enter = gtk_real_button_enter;
klass->leave = gtk_real_button_leave;
klass->enter = gtk_button_update_state;
klass->leave = gtk_button_update_state;
klass->activate = gtk_real_button_activate;
g_object_class_install_property (G_OBJECT_CLASS(object_class),
@ -247,6 +246,22 @@ gtk_button_class_init (GtkButtonClass *klass)
_("Extra space to add for CAN_DEFAULT buttons that is always drawn outside the border"),
GTK_TYPE_BORDER,
G_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("child_displacement_x",
_("Child X Displacement"),
_("How far in the x direction to move the child when the button is depressed"),
G_MININT,
G_MAXINT,
0,
G_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("child_displacement_y",
_("Child Y Displacement"),
_("How far in the y direction to move the child when the button is depressed"),
G_MININT,
G_MAXINT,
0,
G_PARAM_READABLE));
}
static void
@ -259,6 +274,7 @@ gtk_button_init (GtkButton *button)
button->in_button = FALSE;
button->button_down = FALSE;
button->relief = GTK_RELIEF_NORMAL;
button->depressed = FALSE;
}
static GtkType
@ -656,6 +672,19 @@ gtk_button_size_allocate (GtkWidget *widget,
child_allocation.height = MAX (1, child_allocation.height - default_border.top - default_border.bottom);
}
if (button->depressed)
{
gint child_displacement_x;
gint child_displacement_y;
gtk_widget_style_get (widget,
"child_displacement_x", &child_displacement_x,
"child_displacement_y", &child_displacement_y,
NULL);
child_allocation.x += child_displacement_x;
child_allocation.y += child_displacement_y;
}
gtk_widget_size_allocate (GTK_BIN (button)->child, &child_allocation);
}
}
@ -740,11 +769,8 @@ gtk_button_paint (GtkWidget *widget,
width -= 2;
height -= 2;
}
if (GTK_WIDGET_STATE (widget) == GTK_STATE_ACTIVE)
shadow_type = GTK_SHADOW_IN;
else
shadow_type = GTK_SHADOW_OUT;
shadow_type = button->depressed ? GTK_SHADOW_IN : GTK_SHADOW_OUT;
if ((button->relief != GTK_RELIEF_NONE) ||
((GTK_WIDGET_STATE(widget) != GTK_STATE_NORMAL) &&
@ -937,85 +963,27 @@ gtk_button_remove (GtkContainer *container,
static void
gtk_real_button_pressed (GtkButton *button)
{
GtkStateType new_state;
g_return_if_fail (GTK_IS_BUTTON (button));
if (button->activate_timeout)
return;
button->button_down = TRUE;
new_state = (button->in_button ? GTK_STATE_ACTIVE : GTK_STATE_NORMAL);
if (GTK_WIDGET_STATE (button) != new_state)
{
gtk_widget_set_state (GTK_WIDGET (button), new_state);
gtk_widget_queue_draw (GTK_WIDGET (button));
}
gtk_button_update_state (button);
}
static void
gtk_real_button_released (GtkButton *button)
{
GtkStateType new_state;
g_return_if_fail (GTK_IS_BUTTON (button));
if (button->button_down)
{
button->button_down = FALSE;
if (button->activate_timeout)
return;
if (button->in_button)
gtk_button_clicked (button);
new_state = (button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL);
if (GTK_WIDGET_STATE (button) != new_state)
{
gtk_widget_set_state (GTK_WIDGET (button), new_state);
/* We _draw () instead of queue_draw so that if the operation
* blocks, the label doesn't vanish.
*/
gtk_widget_draw (GTK_WIDGET (button), NULL);
}
}
}
static void
gtk_real_button_enter (GtkButton *button)
{
GtkStateType new_state;
g_return_if_fail (GTK_IS_BUTTON (button));
new_state = (button->button_down ? GTK_STATE_ACTIVE : GTK_STATE_PRELIGHT);
if (button->activate_timeout)
return;
if (GTK_WIDGET_STATE (button) != new_state)
{
gtk_widget_set_state (GTK_WIDGET (button), new_state);
gtk_widget_queue_draw (GTK_WIDGET (button));
}
}
static void
gtk_real_button_leave (GtkButton *button)
{
g_return_if_fail (GTK_IS_BUTTON (button));
if (button->activate_timeout)
return;
if (GTK_WIDGET_STATE (button) != GTK_STATE_NORMAL)
{
gtk_widget_set_state (GTK_WIDGET (button), GTK_STATE_NORMAL);
gtk_widget_queue_draw (GTK_WIDGET (button));
gtk_button_update_state (button);
}
}
@ -1049,7 +1017,7 @@ gtk_real_button_activate (GtkButton *button)
button_activate_timeout,
button);
button->button_down = TRUE;
gtk_widget_set_state (widget, GTK_STATE_ACTIVE);
gtk_button_update_state (button);
}
}
}
@ -1067,10 +1035,49 @@ gtk_button_finish_activate (GtkButton *button,
gtk_grab_remove (widget);
button->button_down = FALSE;
gtk_widget_set_state (GTK_WIDGET (button),
button->in_button ? GTK_STATE_PRELIGHT : GTK_STATE_NORMAL);
gtk_button_update_state (button);
if (do_it)
gtk_button_clicked (button);
}
/**
* _gtk_button_set_depressed:
* @button: a #GtkButton
* @depressed: %TRUE if the button should be drawn with a recessed shadow.
*
* Sets whether the button is currently drawn as down or not. This is
* purely a visual setting, and is meant only for use by derived widgets
* such as #GtkToggleButton.
**/
void
_gtk_button_set_depressed (GtkButton *button,
gboolean depressed)
{
GtkWidget *widget = GTK_WIDGET (button);
depressed = depressed != FALSE;
if (depressed != button->depressed)
{
button->depressed = depressed;
gtk_widget_queue_resize (widget);
}
}
static void
gtk_button_update_state (GtkButton *button)
{
gboolean depressed;
GtkStateType new_state;
depressed = button->in_button && button->button_down;
if (!button->button_down && button->in_button)
new_state = GTK_STATE_PRELIGHT;
else
new_state = depressed ? GTK_STATE_ACTIVE: GTK_STATE_NORMAL;
_gtk_button_set_depressed (button, depressed);
gtk_widget_set_state (GTK_WIDGET (button), new_state);
}