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app: port GimpSpinScale to GTK+ 3.0

This commit is contained in:
Michael Natterer 2010-11-19 15:23:21 +01:00
parent 64cde17687
commit 8c3a0d17f4
1 changed files with 269 additions and 213 deletions
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482
app/widgets/gimpspinscale.c
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@ -87,46 +87,48 @@ struct _GimpSpinScalePrivate
GimpSpinScalePrivate))
static void gimp_spin_scale_dispose (GObject *object);
static void gimp_spin_scale_finalize (GObject *object);
static void gimp_spin_scale_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_spin_scale_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_spin_scale_dispose (GObject *object);
static void gimp_spin_scale_finalize (GObject *object);
static void gimp_spin_scale_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_spin_scale_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_spin_scale_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gimp_spin_scale_style_set (GtkWidget *widget,
GtkStyle *prev_style);
static gboolean gimp_spin_scale_expose (GtkWidget *widget,
GdkEventExpose *event);
static gboolean gimp_spin_scale_button_press (GtkWidget *widget,
GdkEventButton *event);
static gboolean gimp_spin_scale_button_release (GtkWidget *widget,
GdkEventButton *event);
static gboolean gimp_spin_scale_motion_notify (GtkWidget *widget,
GdkEventMotion *event);
static gboolean gimp_spin_scale_leave_notify (GtkWidget *widget,
GdkEventCrossing *event);
static void gimp_spin_scale_hierarchy_changed (GtkWidget *widget,
GtkWidget *old_toplevel);
static void gimp_spin_scale_screen_changed (GtkWidget *widget,
GdkScreen *old_screen);
static void gimp_spin_scale_get_preferred_width (GtkWidget *widget,
gint *minimum_width,
gint *natural_width);
static void gimp_spin_scale_get_preferred_height (GtkWidget *widget,
gint *minimum_width,
gint *natural_width);
static void gimp_spin_scale_style_updated (GtkWidget *widget);
static gboolean gimp_spin_scale_draw (GtkWidget *widget,
cairo_t *cr);
static gboolean gimp_spin_scale_button_press (GtkWidget *widget,
GdkEventButton *event);
static gboolean gimp_spin_scale_button_release (GtkWidget *widget,
GdkEventButton *event);
static gboolean gimp_spin_scale_motion_notify (GtkWidget *widget,
GdkEventMotion *event);
static gboolean gimp_spin_scale_leave_notify (GtkWidget *widget,
GdkEventCrossing *event);
static void gimp_spin_scale_hierarchy_changed (GtkWidget *widget,
GtkWidget *old_toplevel);
static void gimp_spin_scale_screen_changed (GtkWidget *widget,
GdkScreen *old_screen);
static void gimp_spin_scale_value_changed (GtkSpinButton *spin_button);
static void gimp_spin_scale_settings_notify (GtkSettings *settings,
const GParamSpec *pspec,
GimpSpinScale *scale);
static void gimp_spin_scale_mnemonics_notify (GtkWindow *window,
const GParamSpec *pspec,
GimpSpinScale *scale);
static void gimp_spin_scale_setup_mnemonic (GimpSpinScale *scale,
guint previous_keyval);
static void gimp_spin_scale_value_changed (GtkSpinButton *spin_button);
static void gimp_spin_scale_settings_notify (GtkSettings *settings,
const GParamSpec *pspec,
GimpSpinScale *scale);
static void gimp_spin_scale_mnemonics_notify (GtkWindow *window,
const GParamSpec *pspec,
GimpSpinScale *scale);
static void gimp_spin_scale_setup_mnemonic (GimpSpinScale *scale,
guint previous_keyval);
G_DEFINE_TYPE (GimpSpinScale, gimp_spin_scale, GTK_TYPE_SPIN_BUTTON);
@ -146,9 +148,10 @@ gimp_spin_scale_class_init (GimpSpinScaleClass *klass)
object_class->set_property = gimp_spin_scale_set_property;
object_class->get_property = gimp_spin_scale_get_property;
widget_class->size_request = gimp_spin_scale_size_request;
widget_class->style_set = gimp_spin_scale_style_set;
widget_class->expose_event = gimp_spin_scale_expose;
widget_class->get_preferred_width = gimp_spin_scale_get_preferred_width;
widget_class->get_preferred_height = gimp_spin_scale_get_preferred_height;
widget_class->style_updated = gimp_spin_scale_style_updated;
widget_class->draw = gimp_spin_scale_draw;
widget_class->button_press_event = gimp_spin_scale_button_press;
widget_class->button_release_event = gimp_spin_scale_button_release;
widget_class->motion_notify_event = gimp_spin_scale_motion_notify;
@ -255,25 +258,22 @@ gimp_spin_scale_get_property (GObject *object,
}
static void
gimp_spin_scale_size_request (GtkWidget *widget,
GtkRequisition *requisition)
gimp_spin_scale_get_preferred_width (GtkWidget *widget,
gint *minimum_width,
gint *natural_width)
{
GimpSpinScalePrivate *private = GET_PRIVATE (widget);
GtkStyle *style = gtk_widget_get_style (widget);
PangoContext *context = gtk_widget_get_pango_context (widget);
PangoFontMetrics *metrics;
gint height;
GTK_WIDGET_CLASS (parent_class)->size_request (widget, requisition);
GTK_WIDGET_CLASS (parent_class)->get_preferred_width (widget,
minimum_width,
natural_width);
metrics = pango_context_get_metrics (context, style->font_desc,
metrics = pango_context_get_metrics (context,
pango_context_get_font_description (context),
pango_context_get_language (context));
height = PANGO_PIXELS (pango_font_metrics_get_ascent (metrics) +
pango_font_metrics_get_descent (metrics));
requisition->height += height;
if (private->label)
{
gint char_width;
@ -285,19 +285,45 @@ gimp_spin_scale_size_request (GtkWidget *widget,
char_pixels = PANGO_PIXELS (MAX (char_width, digit_width));
/* ~3 chars for the ellipses */
requisition->width += char_pixels * 3;
*minimum_width += char_pixels * 3;
*natural_width += char_pixels * 3;
}
pango_font_metrics_unref (metrics);
}
static void
gimp_spin_scale_style_set (GtkWidget *widget,
GtkStyle *prev_style)
gimp_spin_scale_get_preferred_height (GtkWidget *widget,
gint *minimum_height,
gint *natural_height)
{
PangoContext *context = gtk_widget_get_pango_context (widget);
PangoFontMetrics *metrics;
gint height;
GTK_WIDGET_CLASS (parent_class)->get_preferred_height (widget,
minimum_height,
natural_height);
metrics = pango_context_get_metrics (context,
pango_context_get_font_description (context),
pango_context_get_language (context));
height = PANGO_PIXELS (pango_font_metrics_get_ascent (metrics) +
pango_font_metrics_get_descent (metrics));
*minimum_height += height;
*natural_height += height;
pango_font_metrics_unref (metrics);
}
static void
gimp_spin_scale_style_updated (GtkWidget *widget)
{
GimpSpinScalePrivate *private = GET_PRIVATE (widget);
GTK_WIDGET_CLASS (parent_class)->style_set (widget, prev_style);
GTK_WIDGET_CLASS (parent_class)->style_updated (widget);
g_clear_object (&private->layout);
}
@ -342,58 +368,52 @@ pattern_to_attrs (const gchar *text,
}
static gboolean
gimp_spin_scale_expose (GtkWidget *widget,
GdkEventExpose *event)
gimp_spin_scale_draw (GtkWidget *widget,
cairo_t *cr)
{
GimpSpinScalePrivate *private = GET_PRIVATE (widget);
GtkStyle *style = gtk_widget_get_style (widget);
cairo_t *cr;
gboolean rtl;
gint w, h;
GtkStyleContext *style = gtk_widget_get_style_context (widget);
GtkAllocation allocation;
GdkRectangle text_area;
GtkStateFlags state;
GdkRGBA text_color;
GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
cairo_save (cr);
GTK_WIDGET_CLASS (parent_class)->draw (widget, cr);
cairo_restore (cr);
cr = gdk_cairo_create (event->window);
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
gtk_widget_get_allocation (widget, &allocation);
rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
gtk_entry_get_text_area (GTK_ENTRY (widget), &text_area);
w = gdk_window_get_width (event->window);
h = gdk_window_get_height (event->window);
state = gtk_widget_get_state_flags (widget);
gtk_style_context_get_color (style, state, &text_color);
/* upper/lower halves highlight */
if (event->window == gtk_entry_get_text_window (GTK_ENTRY (widget)) &&
gtk_widget_get_sensitive (widget) &&
(private->target == TARGET_UPPER || private->target == TARGET_LOWER))
if (gtk_widget_get_sensitive (widget) &&
(private->target == TARGET_UPPER ||
private->target == TARGET_LOWER))
{
gint window_width;
gint window_height;
const GdkColor *color;
gdouble r, g, b, a;
window_width = gdk_window_get_width (event->window);
window_height = gdk_window_get_height (event->window);
color = &style->text[gtk_widget_get_state (widget)];
gdouble r, g, b, a;
switch (private->target)
{
case TARGET_UPPER:
cairo_rectangle (cr, 0, 0, window_width, window_height / 2);
cairo_rectangle (cr, 0, 0, text_area.width, text_area.height / 2);
break;
case TARGET_LOWER:
cairo_rectangle (cr, 0, window_height / 2, window_width, (window_height + 1) / 2);
cairo_rectangle (cr, 0, text_area.height / 2, text_area.width, (text_area.height + 1) / 2);
break;
default:
break;
}
r = (gdouble) color->red / 0xffff;
g = (gdouble) color->green / 0xffff;
b = (gdouble) color->blue / 0xffff;
r = text_color.red;
g = text_color.green;
b = text_color.blue;
a = 0.12 + 0.04 * MAX (r, MAX (g, b));
if (private->changing_value)
@ -406,62 +426,28 @@ gimp_spin_scale_expose (GtkWidget *widget,
cairo_set_line_width (cr, 1.0);
if (event->window == gtk_entry_get_text_window (GTK_ENTRY (widget)))
cairo_rectangle (cr, 0.5, 0.5,
allocation.width - 1.0, allocation.height - 1.0);
gdk_cairo_set_source_rgba (cr, &text_color);
cairo_stroke (cr);
if (private->label)
{
/* let spinbutton-side line of rectangle disappear */
if (rtl)
cairo_rectangle (cr, -0.5, 0.5, w, h - 1.0);
else
cairo_rectangle (cr, 0.5, 0.5, w, h - 1.0);
gdk_cairo_set_source_color (cr,
&style->text_aa[gtk_widget_get_state (widget)]);
cairo_stroke (cr);
}
else
{
/* let text-box-side line of rectangle disappear */
if (rtl)
cairo_rectangle (cr, 0.5, 0.5, w, h - 1.0);
else
cairo_rectangle (cr, -0.5, 0.5, w, h - 1.0);
gdk_cairo_set_source_color (cr,
&style->text_aa[gtk_widget_get_state (widget)]);
cairo_stroke (cr);
if (rtl)
cairo_rectangle (cr, 1.5, 1.5, w - 2.0, h - 3.0);
else
cairo_rectangle (cr, 0.5, 1.5, w - 2.0, h - 3.0);
gdk_cairo_set_source_color (cr,
&style->base[gtk_widget_get_state (widget)]);
cairo_stroke (cr);
}
if (private->label &&
gtk_widget_is_drawable (widget) &&
event->window == gtk_entry_get_text_window (GTK_ENTRY (widget)))
{
GtkRequisition requisition;
GtkAllocation allocation;
gint minimum_width;
gint natural_width;
PangoRectangle logical;
gint layout_offset_x;
gint layout_offset_y;
GtkStateType state;
GdkColor text_color;
GdkColor bar_text_color;
gint window_width;
gint window_height;
GdkRGBA bar_text_color;
gdouble progress_fraction;
gint progress_x;
gint progress_y;
gint progress_width;
gint progress_height;
GTK_WIDGET_CLASS (parent_class)->size_request (widget, &requisition);
gtk_widget_get_allocation (widget, &allocation);
GTK_WIDGET_CLASS (parent_class)->get_preferred_width (widget,
&minimum_width,
&natural_width);
if (! private->layout)
{
@ -485,26 +471,22 @@ gimp_spin_scale_expose (GtkWidget *widget,
pango_layout_set_width (private->layout,
PANGO_SCALE *
(allocation.width - requisition.width));
(allocation.width - minimum_width));
pango_layout_get_pixel_extents (private->layout, NULL, &logical);
gtk_entry_get_layout_offsets (GTK_ENTRY (widget), NULL, &layout_offset_y);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
layout_offset_x = w - logical.width - 2;
layout_offset_x = text_area.x + text_area.width - logical.width - 2;
else
layout_offset_x = 2;
layout_offset_x = text_area.x + 2;
layout_offset_x -= logical.x;
state = GTK_STATE_SELECTED;
if (! gtk_widget_get_sensitive (widget))
state = GTK_STATE_INSENSITIVE;
text_color = style->text[gtk_widget_get_state (widget)];
bar_text_color = style->fg[state];
window_width = gdk_window_get_width (event->window);
window_height = gdk_window_get_height (event->window);
gtk_style_context_save (style);
gtk_style_context_add_class (style, GTK_STYLE_CLASS_PROGRESSBAR);
gtk_style_context_get_color (style, state, &bar_text_color);
gtk_style_context_restore (style);
progress_fraction = gtk_entry_get_progress_fraction (GTK_ENTRY (widget));
@ -512,30 +494,30 @@ gimp_spin_scale_expose (GtkWidget *widget,
{
progress_fraction = 1.0 - progress_fraction;
progress_x = window_width * progress_fraction;
progress_x = text_area.width * progress_fraction;
progress_y = 0;
progress_width = window_width - progress_x;
progress_height = window_height;
progress_width = text_area.width - progress_x;
progress_height = text_area.height;
}
else
{
progress_x = 0;
progress_y = 0;
progress_width = window_width * progress_fraction;
progress_height = window_height;
progress_width = text_area.width * progress_fraction;
progress_height = text_area.height;
}
cairo_save (cr);
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_rectangle (cr, 0, 0, window_width, window_height);
cairo_rectangle (cr, 0, 0, text_area.width, text_area.height);
cairo_rectangle (cr, progress_x, progress_y,
progress_width, progress_height);
cairo_clip (cr);
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING);
cairo_move_to (cr, layout_offset_x, layout_offset_y);
gdk_cairo_set_source_color (cr, &text_color);
cairo_move_to (cr, layout_offset_x, text_area.y + layout_offset_y);
gdk_cairo_set_source_rgba (cr, &text_color);
pango_cairo_show_layout (cr, private->layout);
cairo_restore (cr);
@ -544,42 +526,116 @@ gimp_spin_scale_expose (GtkWidget *widget,
progress_width, progress_height);
cairo_clip (cr);
cairo_move_to (cr, layout_offset_x, layout_offset_y);
gdk_cairo_set_source_color (cr, &bar_text_color);
cairo_move_to (cr, layout_offset_x, text_area.y + layout_offset_y);
gdk_cairo_set_source_rgba (cr, &bar_text_color);
pango_cairo_show_layout (cr, private->layout);
}
cairo_destroy (cr);
return FALSE;
}
/* Returns TRUE if a translation should be done */
static gboolean
gtk_widget_get_translation_to_window (GtkWidget *widget,
GdkWindow *window,
int *x,
int *y)
{
GdkWindow *w, *widget_window;
if (!gtk_widget_get_has_window (widget))
{
GtkAllocation allocation;
gtk_widget_get_allocation (widget, &allocation);
*x = -allocation.x;
*y = -allocation.y;
}
else
{
*x = 0;
*y = 0;
}
widget_window = gtk_widget_get_window (widget);
for (w = window; w && w != widget_window; w = gdk_window_get_parent (w))
{
int wx, wy;
gdk_window_get_position (w, &wx, &wy);
*x += wx;
*y += wy;
}
if (w == NULL)
{
*x = 0;
*y = 0;
return FALSE;
}
return TRUE;
}
static void
gimp_spin_scale_event_to_widget_coords (GtkWidget *widget,
GdkWindow *window,
gdouble event_x,
gdouble event_y,
gint *widget_x,
gint *widget_y)
{
gint tx, ty;
if (gtk_widget_get_translation_to_window (widget, window, &tx, &ty))
{
event_x += tx;
event_y += ty;
}
*widget_x = event_x;
*widget_y = event_y;
}
static SpinScaleTarget
gimp_spin_scale_get_target (GtkWidget *widget,
gdouble x,
gdouble y)
{
GtkAllocation allocation;
PangoRectangle logical;
gint layout_x;
gint layout_y;
GdkRectangle text_area;
GtkAllocation allocation;
PangoRectangle logical;
gint layout_x;
gint layout_y;
gtk_widget_get_allocation (widget, &allocation);
gtk_entry_get_layout_offsets (GTK_ENTRY (widget), &layout_x, &layout_y);
pango_layout_get_pixel_extents (gtk_entry_get_layout (GTK_ENTRY (widget)),
NULL, &logical);
if (x >= layout_x && x < layout_x + logical.width &&
y >= layout_y && y < layout_y + logical.height)
gtk_entry_get_text_area (GTK_ENTRY (widget), &text_area);
if (x >= text_area.x && x < text_area.width &&
y >= text_area.y && y < text_area.height)
{
return TARGET_NUMBER;
}
else if (y >= allocation.height / 2)
{
return TARGET_LOWER;
x -= text_area.x;
y -= text_area.y;
if (x > layout_x && x < layout_x + logical.width &&
y > layout_y && y < layout_y + logical.height)
{
return TARGET_NUMBER;
}
else if (y > text_area.height / 2)
{
return TARGET_LOWER;
}
return TARGET_UPPER;
}
return TARGET_UPPER;
return TARGET_NONE;
}
static void
@ -623,7 +679,7 @@ gimp_spin_scale_update_target (GtkWidget *widget,
gtk_widget_queue_draw (widget);
if (cursor)
gdk_cursor_unref (cursor);
g_object_unref (cursor);
}
}
@ -672,30 +728,29 @@ gimp_spin_scale_change_value (GtkWidget *widget,
GimpSpinScalePrivate *private = GET_PRIVATE (widget);
GtkSpinButton *spin_button = GTK_SPIN_BUTTON (widget);
GtkAdjustment *adjustment = gtk_spin_button_get_adjustment (spin_button);
GdkWindow *text_window = gtk_entry_get_text_window (GTK_ENTRY (widget));
GdkRectangle text_area;
gdouble lower;
gdouble upper;
gint width;
gdouble value;
gint digits;
gint power = 1;
gtk_entry_get_text_area (GTK_ENTRY (widget), &text_area);
gimp_spin_scale_get_limits (GIMP_SPIN_SCALE (widget), &lower, &upper);
width = gdk_window_get_width (text_window);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
x = width - x;
x = text_area.width - x;
if (private->relative_change)
{
gdouble diff;
gdouble step;
step = (upper - lower) / width / 10.0;
step = (upper - lower) / text_area.width / 10.0;
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
diff = x - (width - private->start_x);
diff = x - (text_area.width - private->start_x);
else
diff = x - private->start_x;
@ -705,7 +760,7 @@ gimp_spin_scale_change_value (GtkWidget *widget,
{
gdouble fraction;
fraction = x / (gdouble) width;
fraction = x / (gdouble) text_area.width;
if (fraction > 0.0)
fraction = pow (fraction, private->gamma);
@ -732,47 +787,42 @@ gimp_spin_scale_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GimpSpinScalePrivate *private = GET_PRIVATE (widget);
gint x, y;
private->changing_value = FALSE;
private->relative_change = FALSE;
private->pointer_warp = FALSE;
if (event->window == gtk_entry_get_text_window (GTK_ENTRY (widget)))
gimp_spin_scale_event_to_widget_coords (widget, event->window,
event->x, event->y,
&x, &y);
gimp_spin_scale_update_target (widget, event->window, x, y);
switch (private->target)
{
gimp_spin_scale_update_target (widget, event->window,
event->x, event->y);
case TARGET_UPPER:
private->changing_value = TRUE;
gtk_widget_queue_draw (widget);
gtk_widget_grab_focus (widget);
switch (private->target)
{
case TARGET_UPPER:
private->changing_value = TRUE;
gimp_spin_scale_change_value (widget, x);
gtk_widget_grab_focus (widget);
return TRUE;
gimp_spin_scale_change_value (widget, event->x);
case TARGET_LOWER:
private->changing_value = TRUE;
return TRUE;
gtk_widget_grab_focus (widget);
case TARGET_LOWER:
private->changing_value = TRUE;
private->relative_change = TRUE;
private->start_x = x;
private->start_value = gtk_adjustment_get_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (widget)));
gtk_widget_grab_focus (widget);
return TRUE;
private->relative_change = TRUE;
private->start_x = event->x;
private->start_value = gtk_adjustment_get_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (widget)));
private->start_screen = gdk_event_get_screen ((GdkEvent *) event);
private->start_pointer_x = floor (event->x_root);
private->start_pointer_y = floor (event->y_root);
return TRUE;
default:
break;
}
default:
break;
}
return GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, event);
@ -783,6 +833,11 @@ gimp_spin_scale_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GimpSpinScalePrivate *private = GET_PRIVATE (widget);
gint x, y;
gimp_spin_scale_event_to_widget_coords (widget, event->window,
event->x, event->y,
&x, &y);
if (private->changing_value)
{
@ -822,11 +877,15 @@ gimp_spin_scale_motion_notify (GtkWidget *widget,
GdkEventMotion *event)
{
GimpSpinScalePrivate *private = GET_PRIVATE (widget);
gint x, y;
gimp_spin_scale_event_to_widget_coords (widget, event->window,
event->x, event->y,
&x, &y);
gdk_event_request_motions (event);
if (event->window == gtk_entry_get_text_window (GTK_ENTRY (widget)))
private->hover = TRUE;
private->hover = TRUE;
if (private->changing_value)
{
@ -955,15 +1014,12 @@ gimp_spin_scale_leave_notify (GtkWidget *widget,
{
GimpSpinScalePrivate *private = GET_PRIVATE (widget);
if (event->window == gtk_entry_get_text_window (GTK_ENTRY (widget)))
{
private->hover = FALSE;
private->hover = FALSE;
if (! (event->state &
(GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK)))
{
gimp_spin_scale_clear_target (widget, event->window);
}
if (! (event->state &
(GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK)))
{
gimp_spin_scale_clear_target (widget, event->window);
}
return GTK_WIDGET_CLASS (parent_class)->leave_notify_event (widget, event);