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Implement extended layout for GtkScrolledWindow

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This commit is contained in:
Matthias Clasen
2009-12-19 00:57:49 -05:00
parent 5e8045b14d
commit 9a48091064
1 changed files with 82 additions and 20 deletions
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102
gtk/gtkscrolledwindow.c
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@ -28,6 +28,7 @@
#include <math.h> #include <math.h>
#include <gdk/gdkkeysyms.h> #include <gdk/gdkkeysyms.h>
#include "gtkbindings.h" #include "gtkbindings.h"
#include "gtkextendedlayout.h"
#include "gtkmarshalers.h" #include "gtkmarshalers.h"
#include "gtkscrolledwindow.h" #include "gtkscrolledwindow.h"
#include "gtkwindow.h" #include "gtkwindow.h"
@ -142,9 +143,14 @@ static void gtk_scrolled_window_adjustment_changed (GtkAdjustment *adjus
static void gtk_scrolled_window_update_real_placement (GtkScrolledWindow *scrolled_window); static void gtk_scrolled_window_update_real_placement (GtkScrolledWindow *scrolled_window);
static void gtk_scrolled_window_extended_layout_init (GtkExtendedLayoutIface *iface);
static guint signals[LAST_SIGNAL] = {0}; static guint signals[LAST_SIGNAL] = {0};
G_DEFINE_TYPE (GtkScrolledWindow, gtk_scrolled_window, GTK_TYPE_BIN) G_DEFINE_TYPE_WITH_CODE (GtkScrolledWindow, gtk_scrolled_window, GTK_TYPE_BIN,
G_IMPLEMENT_INTERFACE (GTK_TYPE_EXTENDED_LAYOUT,
gtk_scrolled_window_extended_layout_init))
static void static void
add_scroll_binding (GtkBindingSet *binding_set, add_scroll_binding (GtkBindingSet *binding_set,
@ -1223,8 +1229,9 @@ gtk_scrolled_window_move_focus_out (GtkScrolledWindow *scrolled_window,
} }
static void static void
gtk_scrolled_window_size_request (GtkWidget *widget, gtk_scrolled_window_real_size_request (GtkWidget *widget,
GtkRequisition *requisition) GtkRequisition *min_requisition,
GtkRequisition *nat_requisition)
{ {
GtkScrolledWindow *scrolled_window; GtkScrolledWindow *scrolled_window;
GtkBin *bin; GtkBin *bin;
@ -1233,10 +1240,10 @@ gtk_scrolled_window_size_request (GtkWidget *widget,
gint scrollbar_spacing; gint scrollbar_spacing;
GtkRequisition hscrollbar_requisition; GtkRequisition hscrollbar_requisition;
GtkRequisition vscrollbar_requisition; GtkRequisition vscrollbar_requisition;
GtkRequisition child_requisition; GtkRequisition min_child_requisition;
GtkRequisition nat_child_requisition;
g_return_if_fail (GTK_IS_SCROLLED_WINDOW (widget)); g_return_if_fail (GTK_IS_SCROLLED_WINDOW (widget));
g_return_if_fail (requisition != NULL);
scrolled_window = GTK_SCROLLED_WINDOW (widget); scrolled_window = GTK_SCROLLED_WINDOW (widget);
bin = GTK_BIN (scrolled_window); bin = GTK_BIN (scrolled_window);
@ -1245,8 +1252,10 @@ gtk_scrolled_window_size_request (GtkWidget *widget,
extra_width = 0; extra_width = 0;
extra_height = 0; extra_height = 0;
requisition->width = 0; min_requisition->width = 0;
requisition->height = 0; min_requisition->height = 0;
nat_requisition->width = 0;
nat_requisition->height = 0;
gtk_widget_size_request (scrolled_window->hscrollbar, gtk_widget_size_request (scrolled_window->hscrollbar,
&hscrollbar_requisition); &hscrollbar_requisition);
@ -1255,43 +1264,60 @@ gtk_scrolled_window_size_request (GtkWidget *widget,
if (bin->child && GTK_WIDGET_VISIBLE (bin->child)) if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
{ {
gtk_widget_size_request (bin->child, &child_requisition); gtk_extended_layout_get_desired_size (GTK_EXTENDED_LAYOUT (bin->child),
&min_child_requisition,
&nat_child_requisition);
if (scrolled_window->hscrollbar_policy == GTK_POLICY_NEVER) if (scrolled_window->hscrollbar_policy == GTK_POLICY_NEVER)
requisition->width += child_requisition.width; {
min_requisition->width += min_child_requisition.width;
nat_requisition->width += nat_child_requisition.width;
}
else else
{ {
GtkWidgetAuxInfo *aux_info = _gtk_widget_get_aux_info (bin->child, FALSE); GtkWidgetAuxInfo *aux_info = _gtk_widget_get_aux_info (bin->child, FALSE);
if (aux_info && aux_info->width > 0) if (aux_info && aux_info->width > 0)
{ {
requisition->width += aux_info->width; min_requisition->width += aux_info->width;
nat_requisition->width += aux_info->width;
extra_width = -1; extra_width = -1;
} }
else else
requisition->width += vscrollbar_requisition.width; {
min_requisition->width += vscrollbar_requisition.width;
nat_requisition->width += vscrollbar_requisition.width;
}
} }
if (scrolled_window->vscrollbar_policy == GTK_POLICY_NEVER) if (scrolled_window->vscrollbar_policy == GTK_POLICY_NEVER)
requisition->height += child_requisition.height; {
min_requisition->height += min_child_requisition.height;
nat_requisition->height += nat_child_requisition.height;
}
else else
{ {
GtkWidgetAuxInfo *aux_info = _gtk_widget_get_aux_info (bin->child, FALSE); GtkWidgetAuxInfo *aux_info = _gtk_widget_get_aux_info (bin->child, FALSE);
if (aux_info && aux_info->height > 0) if (aux_info && aux_info->height > 0)
{ {
requisition->height += aux_info->height; min_requisition->height += aux_info->height;
nat_requisition->height += aux_info->height;
extra_height = -1; extra_height = -1;
} }
else else
requisition->height += hscrollbar_requisition.height; {
min_requisition->height += hscrollbar_requisition.height;
nat_requisition->height += hscrollbar_requisition.height;
}
} }
} }
if (scrolled_window->hscrollbar_policy == GTK_POLICY_AUTOMATIC || if (scrolled_window->hscrollbar_policy == GTK_POLICY_AUTOMATIC ||
scrolled_window->hscrollbar_policy == GTK_POLICY_ALWAYS) scrolled_window->hscrollbar_policy == GTK_POLICY_ALWAYS)
{ {
requisition->width = MAX (requisition->width, hscrollbar_requisition.width); min_requisition->width = MAX (min_requisition->width, hscrollbar_requisition.width);
nat_requisition->width = MAX (nat_requisition->width, hscrollbar_requisition.width);
if (!extra_height || scrolled_window->hscrollbar_policy == GTK_POLICY_ALWAYS) if (!extra_height || scrolled_window->hscrollbar_policy == GTK_POLICY_ALWAYS)
extra_height = scrollbar_spacing + hscrollbar_requisition.height; extra_height = scrollbar_spacing + hscrollbar_requisition.height;
} }
@ -1299,21 +1325,35 @@ gtk_scrolled_window_size_request (GtkWidget *widget,
if (scrolled_window->vscrollbar_policy == GTK_POLICY_AUTOMATIC || if (scrolled_window->vscrollbar_policy == GTK_POLICY_AUTOMATIC ||
scrolled_window->vscrollbar_policy == GTK_POLICY_ALWAYS) scrolled_window->vscrollbar_policy == GTK_POLICY_ALWAYS)
{ {
requisition->height = MAX (requisition->height, vscrollbar_requisition.height); min_requisition->height = MAX (min_requisition->height, vscrollbar_requisition.height);
nat_requisition->height = MAX (nat_requisition->height, vscrollbar_requisition.height);
if (!extra_height || scrolled_window->vscrollbar_policy == GTK_POLICY_ALWAYS) if (!extra_height || scrolled_window->vscrollbar_policy == GTK_POLICY_ALWAYS)
extra_width = scrollbar_spacing + vscrollbar_requisition.width; extra_width = scrollbar_spacing + vscrollbar_requisition.width;
} }
requisition->width += GTK_CONTAINER (widget)->border_width * 2 + MAX (0, extra_width); min_requisition->width += GTK_CONTAINER (widget)->border_width * 2 + MAX (0, extra_width);
requisition->height += GTK_CONTAINER (widget)->border_width * 2 + MAX (0, extra_height); min_requisition->height += GTK_CONTAINER (widget)->border_width * 2 + MAX (0, extra_height);
nat_requisition->width += GTK_CONTAINER (widget)->border_width * 2 + MAX (0, extra_width);
nat_requisition->height += GTK_CONTAINER (widget)->border_width * 2 + MAX (0, extra_height);
if (scrolled_window->shadow_type != GTK_SHADOW_NONE) if (scrolled_window->shadow_type != GTK_SHADOW_NONE)
{ {
requisition->width += 2 * widget->style->xthickness; min_requisition->width += 2 * widget->style->xthickness;
requisition->height += 2 * widget->style->ythickness; min_requisition->height += 2 * widget->style->ythickness;
nat_requisition->width += 2 * widget->style->xthickness;
nat_requisition->height += 2 * widget->style->ythickness;
} }
} }
static void
gtk_scrolled_window_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkRequisition nat_req;
gtk_scrolled_window_real_size_request (widget, requisition, &nat_req);
}
static void static void
gtk_scrolled_window_relative_allocation (GtkWidget *widget, gtk_scrolled_window_relative_allocation (GtkWidget *widget,
GtkAllocation *allocation) GtkAllocation *allocation)
@ -1788,5 +1828,27 @@ _gtk_scrolled_window_get_scrollbar_spacing (GtkScrolledWindow *scrolled_window)
} }
} }
static void
gtk_scrolled_window_extended_layout_get_desired_size (GtkExtendedLayout *layout,
GtkRequisition *minimal_size,
GtkRequisition *natural_size)
{
GtkRequisition min_req, nat_req;
gtk_scrolled_window_real_size_request (GTK_WIDGET (layout), &min_req, &nat_req);
if (minimal_size)
*minimal_size = min_req;
if (natural_size)
*natural_size = nat_req;
}
static void
gtk_scrolled_window_extended_layout_init (GtkExtendedLayoutIface *iface)
{
iface->get_desired_size = gtk_scrolled_window_extended_layout_get_desired_size;
}
#define __GTK_SCROLLED_WINDOW_C__ #define __GTK_SCROLLED_WINDOW_C__
#include "gtkaliasdef.c" #include "gtkaliasdef.c"