[gimp/gtk3-port: 99/228] app: port GimpSpinScale to GTK+ 3.0
- From: Michael Natterer <mitch src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp/gtk3-port: 99/228] app: port GimpSpinScale to GTK+ 3.0
- Date: Tue, 23 Oct 2012 17:57:04 +0000 (UTC)
commit e1cd3573afbb89736d21e20259f1f5e0641c70c5
Author: Michael Natterer <mitch gimp org>
Date: Fri Nov 19 15:23:21 2010 +0100
app: port GimpSpinScale to GTK+ 3.0
app/widgets/gimpspinscale.c | 369 ++++++++++++++++++++++++++----------------
1 files changed, 228 insertions(+), 141 deletions(-)
---
diff --git a/app/widgets/gimpspinscale.c b/app/widgets/gimpspinscale.c
index acc5ac6..0a1b78b 100644
--- a/app/widgets/gimpspinscale.c
+++ b/app/widgets/gimpspinscale.c
@@ -43,7 +43,8 @@ typedef enum
{
TARGET_NUMBER,
TARGET_UPPER,
- TARGET_LOWER
+ TARGET_LOWER,
+ TARGET_NONE
} SpinScaleTarget;
@@ -70,33 +71,37 @@ 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_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_value_changed (GtkSpinButton *spin_button);
+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_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_set (GtkWidget *widget,
+ GtkStyle *prev_style);
+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_value_changed (GtkSpinButton *spin_button);
G_DEFINE_TYPE (GimpSpinScale, gimp_spin_scale, GTK_TYPE_SPIN_BUTTON);
@@ -116,9 +121,10 @@ 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->get_preferred_width = gimp_spin_scale_get_preferred_width;
+ widget_class->get_preferred_height = gimp_spin_scale_get_preferred_height;
widget_class->style_set = gimp_spin_scale_style_set;
- widget_class->expose_event = gimp_spin_scale_expose;
+ 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;
@@ -222,25 +228,22 @@ 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,
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;
@@ -252,13 +255,40 @@ 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_get_preferred_height (GtkWidget *widget,
+ gint *minimum_height,
+ gint *natural_height)
+{
+ GtkStyle *style = gtk_widget_get_style (widget);
+ 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, style->font_desc,
+ 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_set (GtkWidget *widget,
GtkStyle *prev_style)
{
@@ -274,74 +304,41 @@ gimp_spin_scale_style_set (GtkWidget *widget,
}
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;
-
- GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
+ GtkAllocation allocation;
- cr = gdk_cairo_create (event->window);
- gdk_cairo_region (cr, event->region);
- cairo_clip (cr);
+ cairo_save (cr);
+ GTK_WIDGET_CLASS (parent_class)->draw (widget, cr);
+ cairo_restore (cr);
- rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
-
- w = gdk_window_get_width (event->window);
- h = gdk_window_get_height (event->window);
+ gtk_widget_get_allocation (widget, &allocation);
cairo_set_line_width (cr, 1.0);
- if (event->window == gtk_entry_get_text_window (GTK_ENTRY (widget)))
- {
- /* 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[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[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);
- }
+ cairo_rectangle (cr, 0.5, 0.5,
+ allocation.width - 1.0, allocation.height - 1.0);
+ gdk_cairo_set_source_color (cr,
+ &style->text[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)))
+ if (private->label)
{
- GtkRequisition requisition;
- GtkAllocation allocation;
+ GdkRectangle text_area;
+ gint minimum_width;
+ gint natural_width;
PangoRectangle logical;
gint layout_offset_x;
gint layout_offset_y;
- GTK_WIDGET_CLASS (parent_class)->size_request (widget, &requisition);
- gtk_widget_get_allocation (widget, &allocation);
+ gtk_entry_get_text_area (GTK_ENTRY (widget), &text_area);
+
+ GTK_WIDGET_CLASS (parent_class)->get_preferred_width (widget,
+ &minimum_width,
+ &natural_width);
if (! private->layout)
{
@@ -352,19 +349,19 @@ 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;
- cairo_move_to (cr, layout_offset_x, layout_offset_y);
+ cairo_move_to (cr, layout_offset_x, text_area.y + layout_offset_y);
gdk_cairo_set_source_color (cr,
&style->text[gtk_widget_get_state (widget)]);
@@ -372,16 +369,79 @@ gimp_spin_scale_expose (GtkWidget *widget,
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)
{
+ GdkRectangle text_area;
GtkAllocation allocation;
PangoRectangle logical;
gint layout_x;
@@ -392,17 +452,28 @@ gimp_spin_scale_get_target (GtkWidget *widget,
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)
- {
- return TARGET_NUMBER;
- }
- else if (y > allocation.height / 2)
+ 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_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
@@ -434,28 +505,27 @@ 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;
- gimp_spin_scale_get_limits (GIMP_SPIN_SCALE (widget), &lower, &upper);
+ gtk_entry_get_text_area (GTK_ENTRY (widget), &text_area);
- width = gdk_window_get_width (text_window);
+ gimp_spin_scale_get_limits (GIMP_SPIN_SCALE (widget), &lower, &upper);
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;
@@ -465,7 +535,7 @@ 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);
@@ -480,37 +550,39 @@ 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;
- 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);
+
+ switch (gimp_spin_scale_get_target (widget, x, y))
{
- switch (gimp_spin_scale_get_target (widget, event->x, event->y))
- {
- case TARGET_UPPER:
- private->changing_value = TRUE;
+ case TARGET_UPPER:
+ private->changing_value = TRUE;
- gtk_widget_grab_focus (widget);
+ gtk_widget_grab_focus (widget);
- gimp_spin_scale_change_value (widget, event->x);
+ gimp_spin_scale_change_value (widget, x);
- return TRUE;
+ return TRUE;
- case TARGET_LOWER:
- private->changing_value = TRUE;
+ case TARGET_LOWER:
+ private->changing_value = TRUE;
- gtk_widget_grab_focus (widget);
+ gtk_widget_grab_focus (widget);
- 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->relative_change = TRUE;
+ private->start_x = x;
+ private->start_value = gtk_adjustment_get_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (widget)));
- return TRUE;
+ return TRUE;
- default:
- break;
- }
+ default:
+ break;
}
return GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, event);
@@ -521,12 +593,17 @@ 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)
{
private->changing_value = FALSE;
- gimp_spin_scale_change_value (widget, event->x);
+ gimp_spin_scale_change_value (widget, x);
return TRUE;
}
@@ -539,10 +616,15 @@ 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);
if (private->changing_value)
{
- gimp_spin_scale_change_value (widget, event->x);
+ gimp_spin_scale_change_value (widget, x);
return TRUE;
}
@@ -550,13 +632,12 @@ gimp_spin_scale_motion_notify (GtkWidget *widget,
GTK_WIDGET_CLASS (parent_class)->motion_notify_event (widget, event);
if (! (event->state &
- (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK)) &&
- event->window == gtk_entry_get_text_window (GTK_ENTRY (widget)))
+ (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK)))
{
GdkDisplay *display = gtk_widget_get_display (widget);
GdkCursor *cursor = NULL;
- switch (gimp_spin_scale_get_target (widget, event->x, event->y))
+ switch (gimp_spin_scale_get_target (widget, x, y))
{
case TARGET_NUMBER:
cursor = gdk_cursor_new_for_display (display, GDK_XTERM);
@@ -569,10 +650,16 @@ gimp_spin_scale_motion_notify (GtkWidget *widget,
case TARGET_LOWER:
cursor = gdk_cursor_new_for_display (display, GDK_SB_H_DOUBLE_ARROW);
break;
+
+ default:
+ break;
}
- gdk_window_set_cursor (event->window, cursor);
- gdk_cursor_unref (cursor);
+ if (cursor)
+ {
+ gdk_window_set_cursor (event->window, cursor);
+ g_object_unref (cursor);
+ }
}
return FALSE;
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