[gimp/gtk3-port: 215/444] modules: port GimpColorWheel to GTK+ 3.x
- From: Michael Natterer <mitch src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp/gtk3-port: 215/444] modules: port GimpColorWheel to GTK+ 3.x
- Date: Sun, 13 May 2018 20:17:38 +0000 (UTC)
commit 1736b4e4c327aebebc105bafde61500d1827c388
Author: Michael Natterer <mitch gimp org>
Date: Sun Jan 6 15:39:43 2013 +0100
modules: port GimpColorWheel to GTK+ 3.x
modules/gimpcolorwheel.c | 273 +++++++++++++++++++++------------------------
1 files changed, 127 insertions(+), 146 deletions(-)
---
diff --git a/modules/gimpcolorwheel.c b/modules/gimpcolorwheel.c
index e56f85a..09a2aaf 100644
--- a/modules/gimpcolorwheel.c
+++ b/modules/gimpcolorwheel.c
@@ -95,33 +95,38 @@ enum
LAST_SIGNAL
};
-static void gimp_color_wheel_dispose (GObject *object);
-
-static void gimp_color_wheel_map (GtkWidget *widget);
-static void gimp_color_wheel_unmap (GtkWidget *widget);
-static void gimp_color_wheel_realize (GtkWidget *widget);
-static void gimp_color_wheel_unrealize (GtkWidget *widget);
-static void gimp_color_wheel_size_request (GtkWidget *widget,
- GtkRequisition *requisition);
-static void gimp_color_wheel_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation);
-static gboolean gimp_color_wheel_button_press (GtkWidget *widget,
- GdkEventButton *event);
-static gboolean gimp_color_wheel_button_release (GtkWidget *widget,
- GdkEventButton *event);
-static gboolean gimp_color_wheel_motion (GtkWidget *widget,
- GdkEventMotion *event);
-static gboolean gimp_color_wheel_expose (GtkWidget *widget,
- GdkEventExpose *event);
-static gboolean gimp_color_wheel_grab_broken (GtkWidget *widget,
- GdkEventGrabBroken *event);
-static gboolean gimp_color_wheel_focus (GtkWidget *widget,
- GtkDirectionType direction);
-static void gimp_color_wheel_move (GimpColorWheel *wheel,
- GtkDirectionType dir);
-
-static void gimp_color_wheel_create_transform (GimpColorWheel *wheel);
-static void gimp_color_wheel_destroy_transform (GimpColorWheel *wheel);
+
+static void gimp_color_wheel_dispose (GObject *object);
+
+static void gimp_color_wheel_map (GtkWidget *widget);
+static void gimp_color_wheel_unmap (GtkWidget *widget);
+static void gimp_color_wheel_realize (GtkWidget *widget);
+static void gimp_color_wheel_unrealize (GtkWidget *widget);
+static void gimp_color_wheel_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural);
+static void gimp_color_wheel_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural);
+static void gimp_color_wheel_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+static gboolean gimp_color_wheel_button_press (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean gimp_color_wheel_button_release (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean gimp_color_wheel_motion (GtkWidget *widget,
+ GdkEventMotion *event);
+static gboolean gimp_color_wheel_draw (GtkWidget *widget,
+ cairo_t *cr);
+static gboolean gimp_color_wheel_grab_broken (GtkWidget *widget,
+ GdkEventGrabBroken *event);
+static gboolean gimp_color_wheel_focus (GtkWidget *widget,
+ GtkDirectionType direction);
+static void gimp_color_wheel_move (GimpColorWheel *wheel,
+ GtkDirectionType dir);
+
+static void gimp_color_wheel_create_transform (GimpColorWheel *wheel);
+static void gimp_color_wheel_destroy_transform (GimpColorWheel *wheel);
static guint wheel_signals[LAST_SIGNAL];
@@ -151,12 +156,13 @@ gimp_color_wheel_class_init (GimpColorWheelClass *class)
widget_class->unmap = gimp_color_wheel_unmap;
widget_class->realize = gimp_color_wheel_realize;
widget_class->unrealize = gimp_color_wheel_unrealize;
- widget_class->size_request = gimp_color_wheel_size_request;
+ widget_class->get_preferred_width = gimp_color_wheel_get_preferred_width;
+ widget_class->get_preferred_height = gimp_color_wheel_get_preferred_height;
widget_class->size_allocate = gimp_color_wheel_size_allocate;
widget_class->button_press_event = gimp_color_wheel_button_press;
widget_class->button_release_event = gimp_color_wheel_button_release;
widget_class->motion_notify_event = gimp_color_wheel_motion;
- widget_class->expose_event = gimp_color_wheel_expose;
+ widget_class->draw = gimp_color_wheel_draw;
widget_class->focus = gimp_color_wheel_focus;
widget_class->grab_broken_event = gimp_color_wheel_grab_broken;
@@ -183,32 +189,32 @@ gimp_color_wheel_class_init (GimpColorWheelClass *class)
binding_set = gtk_binding_set_by_class (class);
- gtk_binding_entry_add_signal (binding_set, GDK_Up, 0,
+ gtk_binding_entry_add_signal (binding_set, GDK_KEY_Up, 0,
"move", 1,
G_TYPE_ENUM, GTK_DIR_UP);
- gtk_binding_entry_add_signal (binding_set, GDK_KP_Up, 0,
+ gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Up, 0,
"move", 1,
G_TYPE_ENUM, GTK_DIR_UP);
- gtk_binding_entry_add_signal (binding_set, GDK_Down, 0,
+ gtk_binding_entry_add_signal (binding_set, GDK_KEY_Down, 0,
"move", 1,
G_TYPE_ENUM, GTK_DIR_DOWN);
- gtk_binding_entry_add_signal (binding_set, GDK_KP_Down, 0,
+ gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Down, 0,
"move", 1,
G_TYPE_ENUM, GTK_DIR_DOWN);
- gtk_binding_entry_add_signal (binding_set, GDK_Right, 0,
+ gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, 0,
"move", 1,
G_TYPE_ENUM, GTK_DIR_RIGHT);
- gtk_binding_entry_add_signal (binding_set, GDK_KP_Right, 0,
+ gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, 0,
"move", 1,
G_TYPE_ENUM, GTK_DIR_RIGHT);
- gtk_binding_entry_add_signal (binding_set, GDK_Left, 0,
+ gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, 0,
"move", 1,
G_TYPE_ENUM, GTK_DIR_LEFT);
- gtk_binding_entry_add_signal (binding_set, GDK_KP_Left, 0,
+ gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, 0,
"move", 1,
G_TYPE_ENUM, GTK_DIR_LEFT);
@@ -329,8 +335,25 @@ gimp_color_wheel_unrealize (GtkWidget *widget)
}
static void
-gimp_color_wheel_size_request (GtkWidget *widget,
- GtkRequisition *requisition)
+gimp_color_wheel_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
+{
+ gint focus_width;
+ gint focus_pad;
+
+ gtk_widget_style_get (widget,
+ "focus-line-width", &focus_width,
+ "focus-padding", &focus_pad,
+ NULL);
+
+ *minimum = *natural = DEFAULT_SIZE + 2 * (focus_width + focus_pad);
+}
+
+static void
+gimp_color_wheel_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
{
gint focus_width;
gint focus_pad;
@@ -340,8 +363,7 @@ gimp_color_wheel_size_request (GtkWidget *widget,
"focus-padding", &focus_pad,
NULL);
- requisition->width = DEFAULT_SIZE + 2 * (focus_width + focus_pad);
- requisition->height = DEFAULT_SIZE + 2 * (focus_width + focus_pad);
+ *minimum = *natural = DEFAULT_SIZE + 2 * (focus_width + focus_pad);
}
static void
@@ -664,7 +686,7 @@ set_cross_grab (GimpColorWheel *wheel,
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON_RELEASE_MASK,
NULL, cursor, time);
- gdk_cursor_unref (cursor);
+ g_object_unref (cursor);
}
static gboolean
@@ -812,15 +834,11 @@ gimp_color_wheel_motion (GtkWidget *widget,
/* Paints the hue ring */
static void
paint_ring (GimpColorWheel *wheel,
- cairo_t *cr,
- gint x,
- gint y,
- gint width,
- gint height)
+ cairo_t *cr)
{
GtkWidget *widget = GTK_WIDGET (wheel);
GimpColorWheelPrivate *priv = wheel->priv;
- GtkAllocation allocation;
+ gint width, height;
gint xx, yy;
gdouble dx, dy, dist;
gdouble center_x;
@@ -833,18 +851,12 @@ paint_ring (GimpColorWheel *wheel,
cairo_surface_t *source;
cairo_t *source_cr;
gint stride;
- gint focus_width;
- gint focus_pad;
- gtk_widget_get_allocation (GTK_WIDGET (wheel), &allocation);
+ width = gtk_widget_get_allocated_width (widget);
+ height = gtk_widget_get_allocated_height (widget);
- gtk_widget_style_get (widget,
- "focus-line-width", &focus_width,
- "focus-padding", &focus_pad,
- NULL);
-
- center_x = allocation.width / 2.0;
- center_y = allocation.height / 2.0;
+ center_x = width / 2.0;
+ center_y = height / 2.0;
outer = priv->size / 2.0;
inner = outer - priv->ring_width;
@@ -858,11 +870,11 @@ paint_ring (GimpColorWheel *wheel,
{
p = buf + yy * width;
- dy = -(yy + y - center_y);
+ dy = -(yy - center_y);
for (xx = 0; xx < width; xx++)
{
- dx = xx + x - center_x;
+ dx = xx - center_x;
dist = dx * dx + dy * dy;
if (dist < ((inner-1) * (inner-1)) || dist > ((outer+1) * (outer+1)))
@@ -920,14 +932,14 @@ paint_ring (GimpColorWheel *wheel,
hsv_to_rgb (&r, &g, &b);
if (GIMP_RGB_LUMINANCE (r, g, b) > 0.5)
- cairo_set_source_rgb (source_cr, 0., 0., 0.);
+ cairo_set_source_rgb (source_cr, 0.0, 0.0, 0.0);
else
- cairo_set_source_rgb (source_cr, 1., 1., 1.);
+ cairo_set_source_rgb (source_cr, 1.0, 1.0, 1.0);
- cairo_move_to (source_cr, -x + center_x, - y + center_y);
+ cairo_move_to (source_cr, center_x, center_y);
cairo_line_to (source_cr,
- -x + center_x + cos (priv->h * 2.0 * G_PI) * priv->size / 2,
- -y + center_y - sin (priv->h * 2.0 * G_PI) * priv->size / 2);
+ center_x + cos (priv->h * 2.0 * G_PI) * priv->size / 2,
+ center_y - sin (priv->h * 2.0 * G_PI) * priv->size / 2);
cairo_stroke (source_cr);
cairo_destroy (source_cr);
@@ -935,14 +947,14 @@ paint_ring (GimpColorWheel *wheel,
cairo_save (cr);
- cairo_set_source_surface (cr, source, x, y);
+ cairo_set_source_surface (cr, source, 0, 0);
cairo_surface_destroy (source);
cairo_set_line_width (cr, priv->ring_width);
cairo_new_path (cr);
cairo_arc (cr,
center_x, center_y,
- priv->size / 2. - priv->ring_width / 2.,
+ priv->size / 2.0 - priv->ring_width / 2.0,
0, 2 * G_PI);
cairo_stroke (cr);
@@ -982,10 +994,7 @@ get_color (gdouble h,
static void
paint_triangle (GimpColorWheel *wheel,
cairo_t *cr,
- gint x,
- gint y,
- gint width,
- gint height)
+ gboolean draw_focus)
{
GtkWidget *widget = GTK_WIDGET (wheel);
GimpColorWheelPrivate *priv = wheel->priv;
@@ -1001,8 +1010,12 @@ paint_triangle (GimpColorWheel *wheel,
gint x_start, x_end;
cairo_surface_t *source;
gdouble r, g, b;
- gchar *detail;
gint stride;
+ gint width, height;
+ GtkStyleContext *context;
+
+ width = gtk_widget_get_allocated_width (widget);
+ height = gtk_widget_get_allocated_height (widget);
/* Compute triangle's vertices */
@@ -1056,9 +1069,9 @@ paint_triangle (GimpColorWheel *wheel,
{
p = buf + yy * width;
- if (yy + y >= y1 - PAD && yy + y < y3 + PAD)
+ if (yy >= y1 - PAD && yy < y3 + PAD)
{
- y_interp = CLAMP (yy + y, y1, y3);
+ y_interp = CLAMP (yy, y1, y3);
if (y_interp < y2)
{
@@ -1091,13 +1104,13 @@ paint_triangle (GimpColorWheel *wheel,
SWAP (bl, br, t);
}
- x_start = MAX (xl - PAD, x);
- x_end = MIN (xr + PAD, x + width);
+ x_start = MAX (xl - PAD, 0);
+ x_end = MIN (xr + PAD, width);
x_start = MIN (x_start, x_end);
c = (rl << 16) | (gl << 8) | bl;
- for (xx = x; xx < x_start; xx++)
+ for (xx = 0; xx < x_start; xx++)
*p++ = c;
for (; xx < x_end; xx++)
@@ -1111,7 +1124,7 @@ paint_triangle (GimpColorWheel *wheel,
c = (rr << 16) | (gr << 8) | br;
- for (; xx < x + width; xx++)
+ for (; xx < width; xx++)
*p++ = c;
}
}
@@ -1139,7 +1152,7 @@ paint_triangle (GimpColorWheel *wheel,
/* Draw a triangle with the image as a source */
- cairo_set_source_surface (cr, source, x, y);
+ cairo_set_source_surface (cr, source, 0, 0);
cairo_surface_destroy (source);
cairo_move_to (cr, x1, y1);
@@ -1160,15 +1173,19 @@ paint_triangle (GimpColorWheel *wheel,
b = priv->v;
hsv_to_rgb (&r, &g, &b);
+ context = gtk_widget_get_style_context (widget);
+
+ gtk_style_context_save (context);
+
if (GIMP_RGB_LUMINANCE (r, g, b) > 0.5)
{
- detail = "colorwheel_light";
- cairo_set_source_rgb (cr, 0., 0., 0.);
+ gtk_style_context_add_class (context, "light-area-focus");
+ cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
}
else
{
- detail = "colorwheel_dark";
- cairo_set_source_rgb (cr, 1., 1., 1.);
+ gtk_style_context_add_class (context, "dark-area-focus");
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
}
#define RADIUS 4
@@ -1180,86 +1197,50 @@ paint_triangle (GimpColorWheel *wheel,
/* Draw focus outline */
- if (gtk_widget_has_focus (widget) &&
- ! priv->focus_on_ring)
+ if (draw_focus && ! priv->focus_on_ring)
{
- GtkAllocation allocation;
- gint focus_width;
- gint focus_pad;
-
- gtk_widget_get_allocation (widget, &allocation);
+ gint focus_width;
+ gint focus_pad;
gtk_widget_style_get (widget,
"focus-line-width", &focus_width,
- "focus-padding", &focus_pad,
+ "focus-padding", &focus_pad,
NULL);
- gtk_paint_focus (gtk_widget_get_style (widget),
- gtk_widget_get_window (widget),
- gtk_widget_get_state (widget),
- NULL, widget, detail,
- allocation.x + xx - FOCUS_RADIUS - focus_width - focus_pad,
- allocation.y + yy - FOCUS_RADIUS - focus_width - focus_pad,
- 2 * (FOCUS_RADIUS + focus_width + focus_pad),
- 2 * (FOCUS_RADIUS + focus_width + focus_pad));
+ gtk_render_focus (context, cr,
+ xx - FOCUS_RADIUS - focus_width - focus_pad,
+ yy - FOCUS_RADIUS - focus_width - focus_pad,
+ 2 * (FOCUS_RADIUS + focus_width + focus_pad),
+ 2 * (FOCUS_RADIUS + focus_width + focus_pad));
}
-}
-/* Paints the contents of the HSV color selector */
-static void
-paint (GimpColorWheel *hsv,
- cairo_t *cr,
- gint x,
- gint y,
- gint width,
- gint height)
-{
- GimpColorWheelPrivate *priv = hsv->priv;
-
- if (! priv->transform)
- gimp_color_wheel_create_transform (hsv);
-
- paint_ring (hsv, cr, x, y, width, height);
- paint_triangle (hsv, cr, x, y, width, height);
+ gtk_style_context_restore (context);
}
-static gint
-gimp_color_wheel_expose (GtkWidget *widget,
- GdkEventExpose *event)
+static gboolean
+gimp_color_wheel_draw (GtkWidget *widget,
+ cairo_t *cr)
{
GimpColorWheel *wheel = GIMP_COLOR_WHEEL (widget);
GimpColorWheelPrivate *priv = wheel->priv;
- GtkAllocation allocation;
- GdkRectangle dest;
- cairo_t *cr;
+ gboolean draw_focus;
- if (! (event->window == gtk_widget_get_window (widget) &&
- gtk_widget_is_drawable (widget)))
- return FALSE;
+ draw_focus = gtk_widget_has_visible_focus (widget);
- gtk_widget_get_allocation (widget, &allocation);
+ if (! priv->transform)
+ gimp_color_wheel_create_transform (wheel);
- if (!gdk_rectangle_intersect (&event->area, &allocation, &dest))
- return FALSE;
+ paint_ring (wheel, cr);
+ paint_triangle (wheel, cr, draw_focus);
- cr = gdk_cairo_create (gtk_widget_get_window (widget));
-
- cairo_translate (cr, allocation.x, allocation.y);
- paint (wheel, cr,
- dest.x - allocation.x,
- dest.y - allocation.y,
- dest.width, dest.height);
- cairo_destroy (cr);
-
- if (gtk_widget_has_focus (widget) && priv->focus_on_ring)
- gtk_paint_focus (gtk_widget_get_style (widget),
- gtk_widget_get_window (widget),
- gtk_widget_get_state (widget),
- &event->area, widget, NULL,
- allocation.x,
- allocation.y,
- allocation.width,
- allocation.height);
+ if (draw_focus && priv->focus_on_ring)
+ {
+ GtkStyleContext *context = gtk_widget_get_style_context (widget);
+
+ gtk_render_focus (context, cr, 0, 0,
+ gtk_widget_get_allocated_width (widget),
+ gtk_widget_get_allocated_height (widget));
+ }
return FALSE;
}
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