// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
+#include "wx/wxprec.h"
+
#include "wx/defs.h"
#include "wx/gtk/private.h"
#include "wx/gtk/private/win_gtk.h"
For scrolling, the "set_scroll_adjustments" signal is implemented
to make wxPizza appear scrollable to GTK+, allowing it to be put in a
GtkScrolledWindow. Child widget positions are adjusted for the scrolling
-position in size_allocate. A second same-size GdkWindow is placed behind
-widget->window, to allow GDK to use a more efficient scrolling technique.
+position in size_allocate.
For borders, space is reserved in realize and size_allocate. The border is
drawn on wxPizza's parent GdkWindow.
For RTL, child widget positions are mirrored in size_allocate.
*/
+struct wxPizzaChild
+{
+ GtkWidget* widget;
+ int x, y, width, height;
+};
+
static GtkWidgetClass* parent_class;
extern "C" {
static void size_allocate(GtkWidget* widget, GtkAllocation* alloc)
{
- const bool is_resize =
- widget->allocation.width != alloc->width ||
- widget->allocation.height != alloc->height;
- const bool is_move =
- widget->allocation.x != alloc->x ||
- widget->allocation.y != alloc->y;
-
- widget->allocation = *alloc;
-
wxPizza* pizza = WX_PIZZA(widget);
int border_x, border_y;
pizza->get_border_widths(border_x, border_y);
int w = alloc->width - 2 * border_x;
if (w < 0) w = 0;
- if (GTK_WIDGET_REALIZED(widget) && (is_move || is_resize))
+ if (gtk_widget_get_realized(widget))
{
int h = alloc->height - 2 * border_y;
if (h < 0) h = 0;
+ const int x = alloc->x + border_x;
+ const int y = alloc->y + border_y;
- if (pizza->m_is_scrollable)
- {
- // two windows, both same size
- gdk_window_move_resize(pizza->m_backing_window,
- alloc->x + border_x, alloc->y + border_y, w, h);
- if (is_resize)
- gdk_window_resize(widget->window, w, h);
- }
- else
+ GdkWindow* window = gtk_widget_get_window(widget);
+ int old_x, old_y;
+ gdk_window_get_position(window, &old_x, &old_y);
+
+ if (x != old_x || y != old_y ||
+ w != gdk_window_get_width(window) || h != gdk_window_get_height(window))
{
- // one window
- gdk_window_move_resize(widget->window,
- alloc->x + border_x, alloc->y + border_y, w, h);
+ gdk_window_move_resize(window, x, y, w, h);
+
+ if (border_x + border_y)
+ {
+ // old and new border areas need to be invalidated,
+ // otherwise they will not be erased/redrawn properly
+ GdkWindow* parent = gtk_widget_get_parent_window(widget);
+ gdk_window_invalidate_rect(parent, &widget->allocation, false);
+ gdk_window_invalidate_rect(parent, alloc, false);
+ }
}
}
+
+ widget->allocation = *alloc;
+
// adjust child positions
- for (const GList* list = pizza->m_fixed.children; list; list = list->next)
+ for (const GList* p = pizza->m_children; p; p = p->next)
{
- const GtkFixedChild* child = static_cast<GtkFixedChild*>(list->data);
- if (GTK_WIDGET_VISIBLE(child->widget))
+ const wxPizzaChild* child = static_cast<wxPizzaChild*>(p->data);
+ if (gtk_widget_get_visible(child->widget))
{
GtkAllocation child_alloc;
// note that child positions do not take border into
// which has already been adjusted
child_alloc.x = child->x - pizza->m_scroll_x;
child_alloc.y = child->y - pizza->m_scroll_y;
- GtkRequisition req;
- gtk_widget_get_child_requisition(child->widget, &req);
- child_alloc.width = req.width;
- child_alloc.height = req.height;
+ child_alloc.width = child->width;
+ child_alloc.height = child->height;
if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)
- {
child_alloc.x = w - child_alloc.x - child_alloc.width;
- }
gtk_widget_size_allocate(child->widget, &child_alloc);
}
}
parent_class->realize(widget);
wxPizza* pizza = WX_PIZZA(widget);
- if (pizza->m_border_style || pizza->m_is_scrollable)
+ if (pizza->m_border_style)
{
int border_x, border_y;
pizza->get_border_widths(border_x, border_y);
int h = widget->allocation.height - 2 * border_y;
if (w < 0) w = 0;
if (h < 0) h = 0;
- if (pizza->m_is_scrollable)
- {
- // second window is created if wxWindow is scrollable
- GdkWindowAttr attr;
- attr.event_mask = 0;
- attr.x = x;
- attr.y = y;
- attr.width = w;
- attr.height = h;
- attr.wclass = GDK_INPUT_OUTPUT;
- attr.visual = gtk_widget_get_visual(widget);
- attr.colormap = gtk_widget_get_colormap(widget);
- attr.window_type = GDK_WINDOW_CHILD;
-
- pizza->m_backing_window = gdk_window_new(
- gdk_window_get_parent(widget->window),
- &attr,
- GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP);
-
- gdk_window_set_user_data(pizza->m_backing_window, widget);
- gdk_window_reparent(widget->window, pizza->m_backing_window, 0, 0);
- gdk_window_resize(widget->window, w, h);
-
- // Parts of m_backing_window may be exposed temporarily while
- // resizing. Setting the backing pixmap to None prevents those
- // areas from being briefly painted black.
- gdk_window_set_back_pixmap(pizza->m_backing_window, NULL, false);
- }
- else
- gdk_window_move_resize(widget->window, x, y, w, h);
+ gdk_window_move_resize(widget->window, x, y, w, h);
}
}
-static void unrealize(GtkWidget* widget)
+static void show(GtkWidget* widget)
{
- parent_class->unrealize(widget);
-
- wxPizza* pizza = WX_PIZZA(widget);
- if (pizza->m_backing_window)
+ if (widget->parent && WX_PIZZA(widget)->m_border_style)
{
- gdk_window_set_user_data(pizza->m_backing_window, NULL);
- gdk_window_destroy(pizza->m_backing_window);
- pizza->m_backing_window = NULL;
+ // invalidate whole allocation so borders will be drawn properly
+ const GtkAllocation& a = widget->allocation;
+ gtk_widget_queue_draw_area(widget->parent, a.x, a.y, a.width, a.height);
}
+
+ parent_class->show(widget);
}
-static void map(GtkWidget* widget)
+static void hide(GtkWidget* widget)
{
- parent_class->map(widget);
+ if (widget->parent && WX_PIZZA(widget)->m_border_style)
+ {
+ // invalidate whole allocation so borders will be erased properly
+ const GtkAllocation& a = widget->allocation;
+ gtk_widget_queue_draw_area(widget->parent, a.x, a.y, a.width, a.height);
+ }
- wxPizza* pizza = WX_PIZZA(widget);
- if (pizza->m_backing_window)
- gdk_window_show(pizza->m_backing_window);
+ parent_class->hide(widget);
+}
+
+static void pizza_add(GtkContainer* container, GtkWidget* widget)
+{
+ WX_PIZZA(container)->put(widget, 0, 0, 1, 1);
}
-static void unmap(GtkWidget* widget)
+static void pizza_remove(GtkContainer* container, GtkWidget* widget)
{
- parent_class->unmap(widget);
+ GTK_CONTAINER_CLASS(parent_class)->remove(container, widget);
- wxPizza* pizza = WX_PIZZA(widget);
- if (pizza->m_backing_window)
- gdk_window_hide(pizza->m_backing_window);
+ wxPizza* pizza = WX_PIZZA(container);
+ for (GList* p = pizza->m_children; p; p = p->next)
+ {
+ wxPizzaChild* child = static_cast<wxPizzaChild*>(p->data);
+ if (child->widget == widget)
+ {
+ pizza->m_children = g_list_delete_link(pizza->m_children, p);
+ delete child;
+ break;
+ }
+ }
}
// not used, but needs to exist so gtk_widget_set_scroll_adjustments will work
GtkWidgetClass* widget_class = (GtkWidgetClass*)g_class;
widget_class->size_allocate = size_allocate;
widget_class->realize = realize;
- widget_class->unrealize = unrealize;
- widget_class->map = map;
- widget_class->unmap = unmap;
+ widget_class->show = show;
+ widget_class->hide = hide;
+ GtkContainerClass* container_class = (GtkContainerClass*)g_class;
+ container_class->add = pizza_add;
+ container_class->remove = pizza_remove;
wxPizzaClass* klass = (wxPizzaClass*)g_class;
// needed to make widget appear scrollable to GTK+
{
GtkWidget* widget = GTK_WIDGET(g_object_new(type(), NULL));
wxPizza* pizza = WX_PIZZA(widget);
- pizza->m_backing_window = NULL;
+ pizza->m_children = NULL;
pizza->m_scroll_x = 0;
pizza->m_scroll_y = 0;
pizza->m_is_scrollable = (windowStyle & (wxHSCROLL | wxVSCROLL)) != 0;
// mask off border styles not useable with wxPizza
pizza->m_border_style = int(windowStyle & BORDER_STYLES);
+#if GTK_CHECK_VERSION(3,0,0) || defined(GTK_DISABLE_DEPRECATED)
+ gtk_widget_set_has_window(widget, true);
+#else
gtk_fixed_set_has_window(GTK_FIXED(widget), true);
+#endif
gtk_widget_add_events(widget,
GDK_EXPOSURE_MASK |
GDK_SCROLL_MASK |
return widget;
}
-// gtk_fixed_move does not check for a change before issuing a queue_resize,
-// we need to avoid that to prevent endless sizing loops, so check first
-void wxPizza::move(GtkWidget* widget, int x, int y)
+void wxPizza::move(GtkWidget* widget, int x, int y, int width, int height)
{
- GtkFixed* fixed = &m_fixed;
- for (const GList* list = fixed->children; list; list = list->next)
+ for (const GList* p = m_children; p; p = p->next)
{
- const GtkFixedChild* child = static_cast<GtkFixedChild*>(list->data);
+ wxPizzaChild* child = static_cast<wxPizzaChild*>(p->data);
if (child->widget == widget)
{
- if (child->x != x || child->y != y)
- gtk_fixed_move(fixed, widget, x, y);
+ child->x = x;
+ child->y = y;
+ child->width = width;
+ child->height = height;
+ // normally a queue-resize would be needed here, but we know
+ // wxWindowGTK::DoMoveWindow() will take care of it
break;
}
}
}
+void wxPizza::put(GtkWidget* widget, int x, int y, int width, int height)
+{
+ gtk_fixed_put(GTK_FIXED(this), widget, 0, 0);
+
+ wxPizzaChild* child = new wxPizzaChild;
+ child->widget = widget;
+ child->x = x;
+ child->y = y;
+ child->width = width;
+ child->height = height;
+ m_children = g_list_append(m_children, child);
+}
+
struct AdjustData {
GdkWindow* window;
int dx, dy;
static void scroll_adjust(GtkWidget* widget, void* data)
{
const AdjustData* p = static_cast<AdjustData*>(data);
+ widget->allocation.x += p->dx;
+ widget->allocation.y += p->dy;
+
if (widget->window == p->window)
{
- widget->allocation.x += p->dx;
- widget->allocation.y += p->dy;
// GtkFrame requires a queue_resize, otherwise parts of
// the frame newly exposed by the scroll are not drawn.
// To be safe, do it for all widgets.
void wxPizza::get_border_widths(int& x, int& y)
{
x = y = 0;
+ if (m_border_style == 0)
+ return;
+
#ifndef __WXUNIVERSAL__
if (m_border_style & wxBORDER_SIMPLE)
x = y = 1;
- else if (m_border_style)
+ else if (m_is_scrollable /* || (m_border_style & wxBORDER_THEME) */)
{
- GtkWidget *entry_widget = wxGTKPrivate::GetEntryWidget();
- if (entry_widget->style)
+ GtkWidget *style_widget = wxGTKPrivate::GetTreeWidget();
+
+ if (style_widget->style)
+ {
+ x = style_widget->style->xthickness;
+ y = style_widget->style->ythickness;
+ }
+ }
+ else
+ {
+ GtkWidget *style_widget = wxGTKPrivate::GetEntryWidget();
+
+ if (style_widget->style)
{
- x = entry_widget->style->xthickness;
- y = entry_widget->style->ythickness;
+ x = style_widget->style->xthickness;
+ y = style_widget->style->ythickness;
}
}
#endif
projects / wxWidgets.git / blobdiff