moving from https://github.com/perberos/mate-desktop-environment

1 files changed, 346 insertions, 0 deletions

diff --git a/eel/eel-art-gtk-extensions.c b/eel/eel-art-gtk-extensions.c
new file mode 100644
index 00000000..f3ccef3c
--- /dev/null
+++ b/eel/eel-art-gtk-extensions.c
@@ -0,0 +1,346 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+
+/* eel-eel-gtk-extensions.c - Access gtk/gdk attributes as libeel rectangles.
+
+   Copyright (C) 2000 Eazel, Inc.
+
+   The Mate Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The Mate Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PEELICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the Mate Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.
+
+   Authors: Ramiro Estrugo <[email protected]>
+*/
+
+#include <config.h>
+
+#include "eel-art-gtk-extensions.h"
+#include <gdk/gdkx.h>
+
+/**
+ * eel_gdk_rectangle_to_eel_irect:
+ * @gdk_rectangle: The source GdkRectangle.
+ *
+ * Return value: An EelIRect representation of the GdkRectangle.
+ *
+ * This is a very simple conversion of rectangles from the Gdk to the Libeel
+ * universe.  This is useful in code that does clipping (or other operations)
+ * using libeel and has a GdkRectangle to work with - for example expose_event()
+ * in GtkWidget's.
+ */
+EelIRect
+eel_gdk_rectangle_to_eel_irect (GdkRectangle gdk_rectangle)
+{
+    EelIRect rectangle;
+
+    rectangle.x0 = gdk_rectangle.x;
+    rectangle.y0 = gdk_rectangle.y;
+    rectangle.x1 = rectangle.x0 + (int) gdk_rectangle.width;
+    rectangle.y1 = rectangle.y0 + (int) gdk_rectangle.height;
+
+    return rectangle;
+}
+
+/**
+ * eel_screen_get_dimensions:
+ *
+ * Return value: The screen dimensions.
+ *
+ */
+EelDimensions
+eel_screen_get_dimensions (void)
+{
+    EelDimensions screen_dimensions;
+
+    screen_dimensions.width = gdk_screen_width ();
+    screen_dimensions.height = gdk_screen_height ();
+
+    g_assert (screen_dimensions.width > 0);
+    g_assert (screen_dimensions.height > 0);
+
+    return screen_dimensions;
+}
+
+/**
+ * eel_gdk_window_get_bounds:
+ * @gdk_window: The source GdkWindow.
+ *
+ * Return value: An EelIRect representation of the given GdkWindow's geometry
+ * relative to its parent in the Gdk window hierarchy.
+ *
+ */
+EelIRect
+eel_gdk_window_get_bounds (GdkWindow *gdk_window)
+{
+    EelIRect bounds;
+    int width;
+    int height;
+
+    g_return_val_if_fail (gdk_window != NULL, eel_irect_empty);
+
+    gdk_window_get_position (gdk_window, &bounds.x0, &bounds.y0);
+
+#if GTK_CHECK_VERSION(3, 0, 0)
+    width = gdk_window_get_width(gdk_window);
+    height = gdk_window_get_height(gdk_window);
+#else
+    gdk_drawable_get_size (gdk_window, &width, &height);
+#endif
+
+
+    bounds.x1 = bounds.x0 + width;
+    bounds.y1 = bounds.y0 + height;
+
+    return bounds;
+}
+
+/**
+ * eel_gdk_window_get_bounds:
+ * @gdk_window: The source GdkWindow.
+ *
+ * Return value: An EelIRect representation of the given GdkWindow's geometry
+ * relative to the screen.
+ *
+ */
+EelIRect
+eel_gdk_window_get_screen_relative_bounds (GdkWindow *gdk_window)
+{
+    EelIRect screen_bounds;
+    int width;
+    int height;
+
+    g_return_val_if_fail (gdk_window != NULL, eel_irect_empty);
+
+    if (!gdk_window_get_origin (gdk_window,
+                                &screen_bounds.x0,
+                                &screen_bounds.y0))
+    {
+        return eel_irect_empty;
+    }
+
+#if GTK_CHECK_VERSION(3, 0, 0)
+    width = gdk_window_get_width(gdk_window);
+    height = gdk_window_get_height(gdk_window);
+#else
+    gdk_drawable_get_size(gdk_window, &width, &height);
+#endif
+
+    screen_bounds.x1 = screen_bounds.x0 + width;
+    screen_bounds.y1 = screen_bounds.y0 + height;
+
+    return screen_bounds;
+}
+
+/**
+ * eel_gtk_widget_get_bounds:
+ * @gtk_widget: The source GtkWidget.
+ *
+ * Return value: An EelIRect representation of the given GtkWidget's geometry
+ * relative to its parent.  In the Gtk universe this is known as "allocation."
+ *
+ */
+EelIRect
+eel_gtk_widget_get_bounds (GtkWidget *gtk_widget)
+{
+    GtkAllocation allocation;
+    g_return_val_if_fail (GTK_IS_WIDGET (gtk_widget), eel_irect_empty);
+
+    gtk_widget_get_allocation (gtk_widget, &allocation);
+    return eel_irect_assign (allocation.x,
+                             allocation.y,
+                             (int) allocation.width,
+                             (int) allocation.height);
+}
+
+/**
+ * eel_gtk_widget_get_dimensions:
+ * @gtk_widget: The source GtkWidget.
+ *
+ * Return value: The widget's dimensions.  The returned dimensions are only valid
+ *               after the widget's geometry has been "allocated" by its container.
+ */
+EelDimensions
+eel_gtk_widget_get_dimensions (GtkWidget *gtk_widget)
+{
+    EelDimensions dimensions;
+    GtkAllocation allocation;
+
+    g_return_val_if_fail (GTK_IS_WIDGET (gtk_widget), eel_dimensions_empty);
+
+    gtk_widget_get_allocation (gtk_widget, &allocation);
+    dimensions.width = (int) allocation.width;
+    dimensions.height = (int) allocation.height;
+
+    return dimensions;
+}
+
+/**
+ * eel_gtk_widget_get_preferred_dimensions:
+ * @gtk_widget: The source GtkWidget.
+ *
+ * Return value: The widget's preferred dimensions.  The preferred dimensions are
+ *               computed by calling the widget's 'size_request' method and thus
+ *               could potentially be expensive for complicated widgets.
+ */
+EelDimensions
+eel_gtk_widget_get_preferred_dimensions (GtkWidget *gtk_widget)
+{
+    GtkRequisition requisition;
+    EelDimensions preferred_dimensions;
+
+    g_return_val_if_fail (GTK_IS_WIDGET (gtk_widget), eel_dimensions_empty);
+
+    gtk_widget_size_request (gtk_widget, &requisition);
+
+    preferred_dimensions.width = (int) requisition.width;
+    preferred_dimensions.height = (int) requisition.height;
+
+    return preferred_dimensions;
+}
+
+/**
+ * eel_gdk_window_clip_dirty_area_to_screen:
+ * @gdk_window: The GdkWindow that the damage occured on.
+ * @dirty_area: The dirty area as an EelIRect.
+ *
+ * Return value: An EelIRect of the dirty area clipped to the screen.
+ *
+ * This function is useful to do less work in expose_event() GtkWidget methods.
+ * It also ensures that any drawing that the widget does is actually onscreen.
+ */
+EelIRect
+eel_gdk_window_clip_dirty_area_to_screen (GdkWindow *gdk_window,
+        EelIRect dirty_area)
+{
+    EelIRect clipped;
+    EelDimensions screen_dimensions;
+    EelIRect screen_relative_bounds;
+    int dirty_width;
+    int dirty_height;
+
+    g_return_val_if_fail (gdk_window != NULL, eel_irect_empty);
+
+    dirty_width = dirty_area.x1 - dirty_area.x0;
+    dirty_height = dirty_area.y1 - dirty_area.y0;
+
+    g_return_val_if_fail (dirty_width > 0, eel_irect_empty);
+    g_return_val_if_fail (dirty_height > 0, eel_irect_empty);
+
+    screen_dimensions = eel_screen_get_dimensions ();
+    screen_relative_bounds = eel_gdk_window_get_screen_relative_bounds (gdk_window);
+
+    /* Window is obscured by left edge of screen */
+    if ((screen_relative_bounds.x0 + dirty_area.x0) < 0)
+    {
+        int clipped_width = screen_relative_bounds.x0 + dirty_area.x0 + dirty_width;
+        clipped.x0 = dirty_area.x0 + dirty_width - clipped_width;
+        clipped.x1 = clipped.x0 + clipped_width;
+    }
+    else
+    {
+        clipped.x0 = dirty_area.x0;
+        clipped.x1 = clipped.x0 + dirty_width;
+    }
+
+    /* Window is obscured by right edge of screen */
+    if (screen_relative_bounds.x1 > screen_dimensions.width)
+    {
+        int obscured_width;
+
+        obscured_width =
+            screen_relative_bounds.x0 + dirty_area.x0 + dirty_width - screen_dimensions.width;
+
+        if (obscured_width > 0)
+        {
+            clipped.x1 -= obscured_width;
+        }
+    }
+
+    /* Window is obscured by top edge of screen */
+    if ((screen_relative_bounds.y0 + dirty_area.y0) < 0)
+    {
+        int clipped_height = screen_relative_bounds.y0 + dirty_area.y0 + dirty_height;
+        clipped.y0 = dirty_area.y0 + dirty_height - clipped_height;
+        clipped.y1 = clipped.y0 + clipped_height;
+    }
+    else
+    {
+        clipped.y0 = dirty_area.y0;
+        clipped.y1 = clipped.y0 + dirty_height;
+    }
+
+    /* Window is obscured by bottom edge of screen */
+    if (screen_relative_bounds.y1 > screen_dimensions.height)
+    {
+        int obscured_height;
+
+        obscured_height =
+            screen_relative_bounds.y0 + dirty_area.y0 + dirty_height - screen_dimensions.height;
+
+        if (obscured_height > 0)
+        {
+            clipped.y1 -= obscured_height;
+        }
+    }
+
+    if (eel_irect_is_empty (&clipped))
+    {
+        clipped = eel_irect_empty;
+    }
+
+    return clipped;
+}
+
+GdkRectangle
+eel_irect_to_gdk_rectangle (EelIRect rectangle)
+{
+    GdkRectangle gdk_rect;
+
+    gdk_rect.x = rectangle.x0;
+    gdk_rect.y = rectangle.y0;
+    gdk_rect.width = eel_irect_get_width (rectangle);
+    gdk_rect.height = eel_irect_get_height (rectangle);
+
+    return gdk_rect;
+}
+
+EelDimensions
+eel_gdk_window_get_dimensions (GdkWindow *gdk_window)
+{
+    EelDimensions dimensions;
+
+    g_return_val_if_fail (gdk_window != NULL, eel_dimensions_empty);
+
+#if GTK_CHECK_VERSION(3, 0, 0)
+    dimensions.width = gdk_window_get_width(gdk_window);
+    dimensions.height = gdk_window_get_height(gdk_window);
+#else
+    gdk_drawable_get_size (gdk_window, &dimensions.width, &dimensions.height);
+#endif
+
+    return dimensions;
+}
+
+EelIPoint
+eel_gdk_get_pointer_position (void)
+{
+
+    EelIPoint position;
+
+    gdk_window_get_pointer (gdk_get_default_root_window (),
+                            &position.x,
+                            &position.y,
+                            NULL);
+
+    return position;
+}