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-rw-r--r--src/gui_gtk_f.c883
1 files changed, 883 insertions, 0 deletions
diff --git a/src/gui_gtk_f.c b/src/gui_gtk_f.c
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+++ b/src/gui_gtk_f.c
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+/* vi:set ts=8 sts=4 sw=4 noet:
+ *
+ * VIM - Vi IMproved by Bram Moolenaar
+ *
+ * Do ":help uganda" in Vim to read copying and usage conditions.
+ * Do ":help credits" in Vim to see a list of people who contributed.
+ * See README.txt for an overview of the Vim source code.
+ */
+
+/*
+ * (C) 1998,1999 by Marcin Dalecki <martin@dalecki.de>
+ *
+ * Support for GTK+ 2 was added by:
+ * (C) 2002,2003 Jason Hildebrand <jason@peaceworks.ca>
+ * Daniel Elstner <daniel.elstner@gmx.net>
+ *
+ * This is a special purpose container widget, which manages arbitrary
+ * children at arbitrary positions width arbitrary sizes. This finally puts
+ * an end on our resize problems with which we where struggling for such a
+ * long time.
+ *
+ * Support for GTK+ 3 was added by:
+ * 2016 Kazunobu Kuriyama <kazunobu.kuriyama@gmail.com>
+ */
+
+#include "vim.h"
+#include <gtk/gtk.h> // without this it compiles, but gives errors at
+ // runtime!
+#include "gui_gtk_f.h"
+#if !GTK_CHECK_VERSION(3,0,0)
+# include <gtk/gtksignal.h>
+#endif
+#ifdef MSWIN
+# include <gdk/gdkwin32.h>
+#else
+# include <gdk/gdkx.h>
+#endif
+
+typedef struct _GtkFormChild GtkFormChild;
+
+struct _GtkFormChild
+{
+ GtkWidget *widget;
+ GdkWindow *window;
+ gint x; // relative subwidget x position
+ gint y; // relative subwidget y position
+ gint mapped;
+};
+
+
+static void gui_gtk_form_class_init(GtkFormClass *klass);
+#if GTK_CHECK_VERSION(3,0,0)
+static void gui_gtk_form_init(GtkForm *form);
+#else
+static void gui_gtk_form_init(GtkForm *form, void *g_class);
+#endif
+
+static void form_realize(GtkWidget *widget);
+static void form_unrealize(GtkWidget *widget);
+static void form_map(GtkWidget *widget);
+static void form_size_request(GtkWidget *widget, GtkRequisition *requisition);
+#if GTK_CHECK_VERSION(3,0,0)
+static void form_get_preferred_width(GtkWidget *widget, gint *minimal_width, gint *natural_width);
+static void form_get_preferred_height(GtkWidget *widget, gint *minimal_height, gint *natural_height);
+#endif
+static void form_size_allocate(GtkWidget *widget, GtkAllocation *allocation);
+#if GTK_CHECK_VERSION(3,0,0)
+static gboolean form_draw(GtkWidget *widget, cairo_t *cr);
+#else
+static gint form_expose(GtkWidget *widget, GdkEventExpose *event);
+#endif
+
+static void form_remove(GtkContainer *container, GtkWidget *widget);
+static void form_forall(GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data);
+
+static void form_attach_child_window(GtkForm *form, GtkFormChild *child);
+static void form_realize_child(GtkForm *form, GtkFormChild *child);
+static void form_position_child(GtkForm *form, GtkFormChild *child, gboolean force_allocate);
+static void form_position_children(GtkForm *form);
+
+static void form_send_configure(GtkForm *form);
+
+static void form_child_map(GtkWidget *widget, gpointer user_data);
+static void form_child_unmap(GtkWidget *widget, gpointer user_data);
+
+#if !GTK_CHECK_VERSION(3,0,0)
+static GtkWidgetClass *parent_class = NULL;
+#endif
+
+// Public interface
+
+ GtkWidget *
+gui_gtk_form_new(void)
+{
+ GtkForm *form;
+
+#if GTK_CHECK_VERSION(3,0,0)
+ form = g_object_new(GTK_TYPE_FORM, NULL);
+#else
+ form = gtk_type_new(gui_gtk_form_get_type());
+#endif
+
+ return GTK_WIDGET(form);
+}
+
+ void
+gui_gtk_form_put(
+ GtkForm *form,
+ GtkWidget *child_widget,
+ gint x,
+ gint y)
+{
+ GtkFormChild *child;
+
+ g_return_if_fail(GTK_IS_FORM(form));
+
+ // LINTED: avoid warning: conversion to 'unsigned long'
+ child = g_new(GtkFormChild, 1);
+ if (child == NULL)
+ return;
+
+ child->widget = child_widget;
+ child->window = NULL;
+ child->x = x;
+ child->y = y;
+#if GTK_CHECK_VERSION(3,0,0)
+ gtk_widget_set_size_request(child->widget, -1, -1);
+#else
+ child->widget->requisition.width = 0;
+ child->widget->requisition.height = 0;
+#endif
+ child->mapped = FALSE;
+
+ form->children = g_list_append(form->children, child);
+
+ // child->window must be created and attached to the widget _before_
+ // it has been realized, or else things will break with GTK2. Note
+ // that gtk_widget_set_parent() realizes the widget if it's visible
+ // and its parent is mapped.
+ if (gtk_widget_get_realized(GTK_WIDGET(form)))
+ form_attach_child_window(form, child);
+
+ gtk_widget_set_parent(child_widget, GTK_WIDGET(form));
+
+ if (gtk_widget_get_realized(GTK_WIDGET(form))
+ && !gtk_widget_get_realized(child_widget))
+ form_realize_child(form, child);
+
+ form_position_child(form, child, TRUE);
+}
+
+ void
+gui_gtk_form_move(
+ GtkForm *form,
+ GtkWidget *child_widget,
+ gint x,
+ gint y)
+{
+ GList *tmp_list;
+ GtkFormChild *child;
+
+ g_return_if_fail(GTK_IS_FORM(form));
+
+ for (tmp_list = form->children; tmp_list; tmp_list = tmp_list->next)
+ {
+ child = tmp_list->data;
+ if (child->widget == child_widget)
+ {
+ child->x = x;
+ child->y = y;
+
+ form_position_child(form, child, TRUE);
+ return;
+ }
+ }
+}
+
+ void
+gui_gtk_form_freeze(GtkForm *form)
+{
+ g_return_if_fail(GTK_IS_FORM(form));
+
+ ++form->freeze_count;
+}
+
+ void
+gui_gtk_form_thaw(GtkForm *form)
+{
+ g_return_if_fail(GTK_IS_FORM(form));
+
+ if (!form->freeze_count)
+ return;
+
+ if (!(--form->freeze_count))
+ {
+ form_position_children(form);
+ gtk_widget_queue_draw(GTK_WIDGET(form));
+ }
+}
+
+// Basic Object handling procedures
+
+#if GTK_CHECK_VERSION(3,0,0)
+G_DEFINE_TYPE(GtkForm, gui_gtk_form, GTK_TYPE_CONTAINER)
+#else
+ GtkType
+gui_gtk_form_get_type(void)
+{
+ static GtkType form_type = 0;
+
+ if (!form_type)
+ {
+ GtkTypeInfo form_info;
+
+ CLEAR_FIELD(form_info);
+ form_info.type_name = "GtkForm";
+ form_info.object_size = sizeof(GtkForm);
+ form_info.class_size = sizeof(GtkFormClass);
+ form_info.class_init_func = (GtkClassInitFunc)gui_gtk_form_class_init;
+ form_info.object_init_func = (GtkObjectInitFunc)gui_gtk_form_init;
+
+ form_type = gtk_type_unique(GTK_TYPE_CONTAINER, &form_info);
+ }
+ return form_type;
+}
+#endif // !GTK_CHECK_VERSION(3,0,0)
+
+ static void
+gui_gtk_form_class_init(GtkFormClass *klass)
+{
+ GtkWidgetClass *widget_class;
+ GtkContainerClass *container_class;
+
+ widget_class = (GtkWidgetClass *) klass;
+ container_class = (GtkContainerClass *) klass;
+
+#if !GTK_CHECK_VERSION(3,0,0)
+ parent_class = gtk_type_class(gtk_container_get_type());
+#endif
+
+ widget_class->realize = form_realize;
+ widget_class->unrealize = form_unrealize;
+ widget_class->map = form_map;
+#if GTK_CHECK_VERSION(3,0,0)
+ widget_class->get_preferred_width = form_get_preferred_width;
+ widget_class->get_preferred_height = form_get_preferred_height;
+#else
+ widget_class->size_request = form_size_request;
+#endif
+ widget_class->size_allocate = form_size_allocate;
+#if GTK_CHECK_VERSION(3,0,0)
+ widget_class->draw = form_draw;
+#else
+ widget_class->expose_event = form_expose;
+#endif
+
+ container_class->remove = form_remove;
+ container_class->forall = form_forall;
+}
+
+ static void
+gui_gtk_form_init(GtkForm *form
+#if !GTK_CHECK_VERSION(3,0,0)
+ , void *g_class UNUSED
+#endif
+ )
+{
+#if GTK_CHECK_VERSION(3,0,0)
+ gtk_widget_set_has_window(GTK_WIDGET(form), TRUE);
+#endif
+ form->children = NULL;
+ form->bin_window = NULL;
+ form->freeze_count = 0;
+}
+
+/*
+ * Widget methods
+ */
+
+ static void
+form_realize(GtkWidget *widget)
+{
+ GList *tmp_list;
+ GtkForm *form;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+ GtkAllocation allocation;
+
+ g_return_if_fail(GTK_IS_FORM(widget));
+
+ form = GTK_FORM(widget);
+ gtk_widget_set_realized(widget, TRUE);
+
+ gtk_widget_get_allocation(widget, &allocation);
+ attributes.window_type = GDK_WINDOW_CHILD;
+ attributes.x = allocation.x;
+ attributes.y = allocation.y;
+ attributes.width = allocation.width;
+ attributes.height = allocation.height;
+ attributes.wclass = GDK_INPUT_OUTPUT;
+ attributes.visual = gtk_widget_get_visual(widget);
+#if GTK_CHECK_VERSION(3,0,0)
+ attributes.event_mask = GDK_EXPOSURE_MASK;
+#else
+ attributes.colormap = gtk_widget_get_colormap(widget);
+ attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
+#endif
+
+#if GTK_CHECK_VERSION(3,0,0)
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
+#else
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+#endif
+
+ gtk_widget_set_window(widget,
+ gdk_window_new(gtk_widget_get_parent_window(widget),
+ &attributes, attributes_mask));
+ gdk_window_set_user_data(gtk_widget_get_window(widget), widget);
+
+ attributes.x = 0;
+ attributes.y = 0;
+ attributes.event_mask = gtk_widget_get_events(widget);
+
+ form->bin_window = gdk_window_new(gtk_widget_get_window(widget),
+ &attributes, attributes_mask);
+ gdk_window_set_user_data(form->bin_window, widget);
+
+#if GTK_CHECK_VERSION(3,0,0)
+ {
+ GtkStyleContext * const sctx = gtk_widget_get_style_context(widget);
+
+ gtk_style_context_add_class(sctx, "gtk-form");
+ gtk_style_context_set_state(sctx, GTK_STATE_FLAG_NORMAL);
+# if !GTK_CHECK_VERSION(3,18,0)
+ gtk_style_context_set_background(sctx, gtk_widget_get_window(widget));
+ gtk_style_context_set_background(sctx, form->bin_window);
+# endif
+ }
+#else
+ widget->style = gtk_style_attach(widget->style, widget->window);
+ gtk_style_set_background(widget->style, widget->window, GTK_STATE_NORMAL);
+ gtk_style_set_background(widget->style, form->bin_window, GTK_STATE_NORMAL);
+#endif
+
+ for (tmp_list = form->children; tmp_list; tmp_list = tmp_list->next)
+ {
+ GtkFormChild *child = tmp_list->data;
+
+ form_attach_child_window(form, child);
+
+ if (gtk_widget_get_visible(child->widget))
+ form_realize_child(form, child);
+ }
+}
+
+
+// After reading the documentation at
+// http://developer.gnome.org/doc/API/2.0/gtk/gtk-changes-2-0.html
+// I think it should be possible to remove this function when compiling
+// against gtk-2.0. It doesn't seem to cause problems, though.
+//
+// Well, I reckon at least the gdk_window_show(form->bin_window)
+// is necessary. GtkForm is anything but a usual container widget.
+ static void
+form_map(GtkWidget *widget)
+{
+ GList *tmp_list;
+ GtkForm *form;
+
+ g_return_if_fail(GTK_IS_FORM(widget));
+
+ form = GTK_FORM(widget);
+
+ gtk_widget_set_mapped(widget, TRUE);
+
+ gdk_window_show(gtk_widget_get_window(widget));
+ gdk_window_show(form->bin_window);
+
+ for (tmp_list = form->children; tmp_list; tmp_list = tmp_list->next)
+ {
+ GtkFormChild *child = tmp_list->data;
+
+ if (gtk_widget_get_visible(child->widget)
+ && !gtk_widget_get_mapped(child->widget))
+ gtk_widget_map(child->widget);
+ }
+}
+
+ static void
+form_unrealize(GtkWidget *widget)
+{
+ GList *tmp_list;
+ GtkForm *form;
+
+ g_return_if_fail(GTK_IS_FORM(widget));
+
+ form = GTK_FORM(widget);
+
+ tmp_list = form->children;
+
+ gdk_window_set_user_data(form->bin_window, NULL);
+ gdk_window_destroy(form->bin_window);
+ form->bin_window = NULL;
+
+ while (tmp_list)
+ {
+ GtkFormChild *child = tmp_list->data;
+
+ if (child->window != NULL)
+ {
+ g_signal_handlers_disconnect_by_func(G_OBJECT(child->widget),
+ FUNC2GENERIC(form_child_map),
+ child);
+ g_signal_handlers_disconnect_by_func(G_OBJECT(child->widget),
+ FUNC2GENERIC(form_child_unmap),
+ child);
+
+ gdk_window_set_user_data(child->window, NULL);
+ gdk_window_destroy(child->window);
+
+ child->window = NULL;
+ }
+
+ tmp_list = tmp_list->next;
+ }
+
+#if GTK_CHECK_VERSION(3,0,0)
+ if (GTK_WIDGET_CLASS (gui_gtk_form_parent_class)->unrealize)
+ (* GTK_WIDGET_CLASS (gui_gtk_form_parent_class)->unrealize) (widget);
+#else
+ if (GTK_WIDGET_CLASS (parent_class)->unrealize)
+ (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+#endif
+}
+
+ static void
+form_size_request(GtkWidget *widget, GtkRequisition *requisition)
+{
+ g_return_if_fail(GTK_IS_FORM(widget));
+ g_return_if_fail(requisition != NULL);
+
+ requisition->width = 1;
+ requisition->height = 1;
+}
+
+#if GTK_CHECK_VERSION(3,0,0)
+ static void
+form_get_preferred_width(GtkWidget *widget,
+ gint *minimal_width,
+ gint *natural_width)
+{
+ GtkRequisition requisition;
+
+ form_size_request(widget, &requisition);
+
+ *minimal_width = requisition.width;
+ *natural_width = requisition.width;
+}
+
+ static void
+form_get_preferred_height(GtkWidget *widget,
+ gint *minimal_height,
+ gint *natural_height)
+{
+ GtkRequisition requisition;
+
+ form_size_request(widget, &requisition);
+
+ *minimal_height = requisition.height;
+ *natural_height = requisition.height;
+}
+#endif // GTK_CHECK_VERSION(3,0,0)
+
+ static void
+form_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
+{
+ GList *tmp_list;
+ GtkForm *form;
+ gboolean need_reposition;
+ GtkAllocation cur_alloc;
+
+ g_return_if_fail(GTK_IS_FORM(widget));
+
+ gtk_widget_get_allocation(widget, &cur_alloc);
+
+ if (cur_alloc.x == allocation->x
+ && cur_alloc.y == allocation->y
+ && cur_alloc.width == allocation->width
+ && cur_alloc.height == allocation->height)
+ return;
+
+ need_reposition = cur_alloc.width != allocation->width
+ || cur_alloc.height != allocation->height;
+ form = GTK_FORM(widget);
+
+ if (need_reposition)
+ {
+ tmp_list = form->children;
+
+ while (tmp_list)
+ {
+ GtkFormChild *child = tmp_list->data;
+ form_position_child(form, child, TRUE);
+
+ tmp_list = tmp_list->next;
+ }
+ }
+
+ if (gtk_widget_get_realized(widget))
+ {
+ gdk_window_move_resize(gtk_widget_get_window(widget),
+ allocation->x, allocation->y,
+ allocation->width, allocation->height);
+ gdk_window_move_resize(GTK_FORM(widget)->bin_window,
+ 0, 0,
+ allocation->width, allocation->height);
+ }
+ gtk_widget_set_allocation(widget, allocation);
+ if (need_reposition)
+ form_send_configure(form);
+}
+
+#if GTK_CHECK_VERSION(3,0,0)
+ static void
+gtk_form_render_background(GtkWidget *widget, cairo_t *cr)
+{
+ gtk_render_background(gtk_widget_get_style_context(widget), cr,
+ 0, 0,
+ gtk_widget_get_allocated_width(widget),
+ gtk_widget_get_allocated_height(widget));
+}
+
+ static gboolean
+form_draw(GtkWidget *widget, cairo_t *cr)
+{
+ GList *tmp_list = NULL;
+ GtkForm *form = NULL;
+
+ g_return_val_if_fail(GTK_IS_FORM(widget), FALSE);
+
+ gtk_form_render_background(widget, cr);
+
+ form = GTK_FORM(widget);
+ for (tmp_list = form->children; tmp_list; tmp_list = tmp_list->next)
+ {
+ GtkFormChild * const formchild = tmp_list->data;
+
+ if (!gtk_widget_get_has_window(formchild->widget) &&
+ gtk_cairo_should_draw_window(cr, formchild->window))
+ {
+ // To get gtk_widget_draw() to work, it is required to call
+ // gtk_widget_size_allocate() in advance with a well-posed
+ // allocation for a given child widget in order to set a
+ // certain private GtkWidget variable, called
+ // widget->priv->alloc_need, to the proper value; otherwise,
+ // gtk_widget_draw() fails and the relevant scrollbar won't
+ // appear on the screen.
+ //
+ // Calling form_position_child() like this is one of ways
+ // to make sure of that.
+ form_position_child(form, formchild, TRUE);
+
+ gtk_form_render_background(formchild->widget, cr);
+ }
+ }
+
+ return GTK_WIDGET_CLASS(gui_gtk_form_parent_class)->draw(widget, cr);
+}
+#else // !GTK_CHECK_VERSION(3,0,0)
+ static gint
+form_expose(GtkWidget *widget, GdkEventExpose *event)
+{
+ GList *tmp_list;
+ GtkForm *form;
+
+ g_return_val_if_fail(GTK_IS_FORM(widget), FALSE);
+
+ form = GTK_FORM(widget);
+
+ if (event->window == form->bin_window)
+ return FALSE;
+
+ for (tmp_list = form->children; tmp_list; tmp_list = tmp_list->next)
+ gtk_container_propagate_expose(GTK_CONTAINER(widget),
+ GTK_WIDGET(((GtkFormChild *)tmp_list->data)->widget),
+ event);
+
+ return FALSE;
+}
+#endif // !GTK_CHECK_VERSION(3,0,0)
+
+// Container method
+ static void
+form_remove(GtkContainer *container, GtkWidget *widget)
+{
+ GList *tmp_list;
+ GtkForm *form;
+ GtkFormChild *child = NULL; // init for gcc
+
+ g_return_if_fail(GTK_IS_FORM(container));
+
+ form = GTK_FORM(container);
+
+ tmp_list = form->children;
+ while (tmp_list)
+ {
+ child = tmp_list->data;
+ if (child->widget == widget)
+ break;
+ tmp_list = tmp_list->next;
+ }
+
+ if (tmp_list == NULL)
+ return;
+
+#if GTK_CHECK_VERSION(3,0,0)
+ const gboolean was_visible = gtk_widget_get_visible(widget);
+#endif
+ if (child->window)
+ {
+ g_signal_handlers_disconnect_by_func(G_OBJECT(child->widget),
+ FUNC2GENERIC(&form_child_map), child);
+ g_signal_handlers_disconnect_by_func(G_OBJECT(child->widget),
+ FUNC2GENERIC(&form_child_unmap), child);
+
+ // FIXME: This will cause problems for reparenting NO_WINDOW
+ // widgets out of a GtkForm
+ gdk_window_set_user_data(child->window, NULL);
+ gdk_window_destroy(child->window);
+ }
+ gtk_widget_unparent(widget);
+#if GTK_CHECK_VERSION(3,0,0)
+ if (was_visible)
+ gtk_widget_queue_resize(GTK_WIDGET(container));
+#endif
+ form->children = g_list_remove_link(form->children, tmp_list);
+ g_list_free_1(tmp_list);
+ g_free(child);
+}
+
+ static void
+form_forall(GtkContainer *container,
+ gboolean include_internals UNUSED,
+ GtkCallback callback,
+ gpointer callback_data)
+{
+ GtkForm *form;
+ GtkFormChild *child;
+ GList *tmp_list;
+
+ g_return_if_fail(GTK_IS_FORM(container));
+ g_return_if_fail(callback != NULL);
+
+ form = GTK_FORM(container);
+
+ tmp_list = form->children;
+ while (tmp_list)
+ {
+ child = tmp_list->data;
+ tmp_list = tmp_list->next;
+
+ (*callback) (child->widget, callback_data);
+ }
+}
+
+// Operations on children
+
+ static void
+form_attach_child_window(GtkForm *form, GtkFormChild *child)
+{
+ if (child->window != NULL)
+ return; // been there, done that
+
+ if (!gtk_widget_get_has_window(child->widget))
+ {
+ GtkWidget *widget;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+ GtkRequisition requisition;
+
+ widget = GTK_WIDGET(form);
+
+#if GTK_CHECK_VERSION(3,0,0)
+ gtk_widget_get_preferred_size(child->widget, &requisition, NULL);
+#else
+ requisition = child->widget->requisition;
+#endif
+ attributes.window_type = GDK_WINDOW_CHILD;
+ attributes.x = child->x;
+ attributes.y = child->y;
+ attributes.width = requisition.width;
+ attributes.height = requisition.height;
+ attributes.wclass = GDK_INPUT_OUTPUT;
+ attributes.visual = gtk_widget_get_visual(widget);
+#if !GTK_CHECK_VERSION(3,0,0)
+ attributes.colormap = gtk_widget_get_colormap(widget);
+#endif
+ attributes.event_mask = GDK_EXPOSURE_MASK;
+
+#if GTK_CHECK_VERSION(3,0,0)
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
+#else
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+#endif
+ child->window = gdk_window_new(form->bin_window,
+ &attributes, attributes_mask);
+ gdk_window_set_user_data(child->window, widget);
+
+#if GTK_CHECK_VERSION(3,0,0)
+ {
+ GtkStyleContext * const sctx = gtk_widget_get_style_context(widget);
+
+ gtk_style_context_set_state(sctx, GTK_STATE_FLAG_NORMAL);
+# if !GTK_CHECK_VERSION(3,18,0)
+ gtk_style_context_set_background(sctx, child->window);
+# endif
+ }
+#else
+ gtk_style_set_background(widget->style,
+ child->window,
+ GTK_STATE_NORMAL);
+#endif
+
+ gtk_widget_set_parent_window(child->widget, child->window);
+ /*
+ * Install signal handlers to map/unmap child->window
+ * alongside with the actual widget.
+ */
+ g_signal_connect(G_OBJECT(child->widget), "map",
+ G_CALLBACK(&form_child_map), child);
+ g_signal_connect(G_OBJECT(child->widget), "unmap",
+ G_CALLBACK(&form_child_unmap), child);
+ }
+ else if (!gtk_widget_get_realized(child->widget))
+ {
+ gtk_widget_set_parent_window(child->widget, form->bin_window);
+ }
+}
+
+ static void
+form_realize_child(GtkForm *form, GtkFormChild *child)
+{
+ form_attach_child_window(form, child);
+ gtk_widget_realize(child->widget);
+}
+
+ static void
+form_position_child(GtkForm *form, GtkFormChild *child, gboolean force_allocate)
+{
+ gint x;
+ gint y;
+
+ x = child->x;
+ y = child->y;
+
+ if ((x >= G_MINSHORT) && (x <= G_MAXSHORT) &&
+ (y >= G_MINSHORT) && (y <= G_MAXSHORT))
+ {
+ if (!child->mapped)
+ {
+ if (gtk_widget_get_mapped(GTK_WIDGET(form))
+ && gtk_widget_get_visible(child->widget))
+ {
+ if (!gtk_widget_get_mapped(child->widget))
+ gtk_widget_map(child->widget);
+
+ child->mapped = TRUE;
+ force_allocate = TRUE;
+ }
+ }
+
+ if (force_allocate)
+ {
+ GtkAllocation allocation;
+ GtkRequisition requisition;
+
+#if GTK_CHECK_VERSION(3,0,0)
+ gtk_widget_get_preferred_size(child->widget, &requisition, NULL);
+#else
+ requisition = child->widget->requisition;
+#endif
+
+ if (!gtk_widget_get_has_window(child->widget))
+ {
+ if (child->window)
+ {
+ gdk_window_move_resize(child->window,
+ x, y,
+ requisition.width,
+ requisition.height);
+ }
+
+ allocation.x = 0;
+ allocation.y = 0;
+ }
+ else
+ {
+ allocation.x = x;
+ allocation.y = y;
+ }
+
+ allocation.width = requisition.width;
+ allocation.height = requisition.height;
+
+ gtk_widget_size_allocate(child->widget, &allocation);
+ }
+ }
+ else
+ {
+ if (child->mapped)
+ {
+ child->mapped = FALSE;
+
+ if (gtk_widget_get_mapped(child->widget))
+ gtk_widget_unmap(child->widget);
+ }
+ }
+}
+
+ static void
+form_position_children(GtkForm *form)
+{
+ GList *tmp_list;
+
+ for (tmp_list = form->children; tmp_list; tmp_list = tmp_list->next)
+ form_position_child(form, tmp_list->data, FALSE);
+}
+
+ void
+gui_gtk_form_move_resize(GtkForm *form, GtkWidget *widget,
+ gint x, gint y, gint w, gint h)
+{
+#if GTK_CHECK_VERSION(3,0,0)
+ gtk_widget_set_size_request(widget, w, h);
+#else
+ widget->requisition.width = w;
+ widget->requisition.height = h;
+#endif
+
+ gui_gtk_form_move(form, widget, x, y);
+}
+
+ static void
+form_send_configure(GtkForm *form)
+{
+ GtkWidget *widget;
+ GdkEventConfigure event;
+ GtkAllocation allocation;
+
+ widget = GTK_WIDGET(form);
+
+ gtk_widget_get_allocation(widget, &allocation);
+ event.type = GDK_CONFIGURE;
+ event.window = gtk_widget_get_window(widget);
+ event.x = allocation.x;
+ event.y = allocation.y;
+ event.width = allocation.width;
+ event.height = allocation.height;
+
+ gtk_main_do_event((GdkEvent*)&event);
+}
+
+ static void
+form_child_map(GtkWidget *widget UNUSED, gpointer user_data)
+{
+ GtkFormChild *child;
+
+ child = (GtkFormChild *)user_data;
+
+ child->mapped = TRUE;
+ gdk_window_show(child->window);
+}
+
+ static void
+form_child_unmap(GtkWidget *widget UNUSED, gpointer user_data)
+{
+ GtkFormChild *child;
+
+ child = (GtkFormChild *)user_data;
+
+ child->mapped = FALSE;
+ gdk_window_hide(child->window);
+}