X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5fd11f09718445c5795526c393f2b2a1875f6870..d1b15f03b8e614c83541ca3487f847f61122b514:/src/gtk1/win_gtk.c diff --git a/src/gtk1/win_gtk.c b/src/gtk1/win_gtk.c index dc60934c39..18606b962e 100644 --- a/src/gtk1/win_gtk.c +++ b/src/gtk1/win_gtk.c @@ -1,6 +1,8 @@ /* /////////////////////////////////////////////////////////////////////////// // Name: win_gtk.c -// Purpose: native GTK+ widget for wxWindows +// Purpose: Native GTK+ widget for wxWindows, based on GtkLayout and +// GtkFixed. It makes use of the gravity window property and +// therefore does not work with GTK 1.0. // Author: Robert Roebling // Id: $Id$ // Copyright: (c) 1998 Robert Roebling @@ -9,26 +11,46 @@ #include "wx/gtk/win_gtk.h" #include "gtk/gtksignal.h" -#include "gtk/gtknotebook.h" -#include "gtk/gtkscrolledwindow.h" +#include "gtk/gtkprivate.h" +#include "gdk/gdkx.h" #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ -static void gtk_myfixed_class_init (GtkMyFixedClass *klass); -static void gtk_myfixed_init (GtkMyFixed *myfixed); -static void gtk_myfixed_map (GtkWidget *widget); -#if (GTK_MINOR_VERSION == 0) -static void gtk_myfixed_unmap (GtkWidget *widget); -#endif -static void gtk_myfixed_realize (GtkWidget *widget); +#define IS_ONSCREEN(x,y) ((x >= G_MINSHORT) && (x <= G_MAXSHORT) && \ + (y >= G_MINSHORT) && (y <= G_MAXSHORT)) + +typedef struct _GtkMyFixedAdjData GtkMyFixedAdjData; +typedef struct _GtkMyFixedChild GtkMyFixedChild; + +struct _GtkMyFixedAdjData +{ + gint dx; + gint dy; +}; + +struct _GtkMyFixedChild +{ + GtkWidget *widget; + gint x; + gint y; + gint width; + gint height; +}; + +static void gtk_myfixed_class_init (GtkMyFixedClass *klass); +static void gtk_myfixed_init (GtkMyFixed *myfixed); + +static void gtk_myfixed_realize (GtkWidget *widget); +static void gtk_myfixed_unrealize (GtkWidget *widget); + +static void gtk_myfixed_map (GtkWidget *widget); + static void gtk_myfixed_size_request (GtkWidget *widget, GtkRequisition *requisition); static void gtk_myfixed_size_allocate (GtkWidget *widget, GtkAllocation *allocation); -static void gtk_myfixed_paint (GtkWidget *widget, - GdkRectangle *area); static void gtk_myfixed_draw (GtkWidget *widget, GdkRectangle *area); static gint gtk_myfixed_expose (GtkWidget *widget, @@ -37,25 +59,48 @@ static void gtk_myfixed_add (GtkContainer *container, GtkWidget *widget); static void gtk_myfixed_remove (GtkContainer *container, GtkWidget *widget); -static void gtk_myfixed_foreach (GtkContainer *container, -#if (GTK_MINOR_VERSION > 0) +static void gtk_myfixed_forall (GtkContainer *container, gboolean include_internals, -#endif GtkCallback callback, gpointer callback_data); -#if (GTK_MINOR_VERSION > 0) + +static void gtk_myfixed_position_child (GtkMyFixed *myfixed, + GtkMyFixedChild *child); +static void gtk_myfixed_allocate_child (GtkMyFixed *myfixed, + GtkMyFixedChild *child); +static void gtk_myfixed_position_children (GtkMyFixed *myfixed); + +static void gtk_myfixed_adjust_allocations_recurse (GtkWidget *widget, + gpointer cb_data); +static void gtk_myfixed_adjust_allocations (GtkMyFixed *myfixed, + gint dx, + gint dy); + + +static void gtk_myfixed_expose_area (GtkMyFixed *myfixed, + gint x, + gint y, + gint width, + gint height); +static void gtk_myfixed_adjustment_changed (GtkAdjustment *adjustment, + GtkMyFixed *myfixed); +static GdkFilterReturn gtk_myfixed_filter (GdkXEvent *gdk_xevent, + GdkEvent *event, + gpointer data); +static GdkFilterReturn gtk_myfixed_main_filter (GdkXEvent *gdk_xevent, + GdkEvent *event, + gpointer data); + + static GtkType gtk_myfixed_child_type (GtkContainer *container); -#endif -#if (GTK_MINOR_VERSION > 0) static void gtk_myfixed_scroll_set_adjustments (GtkMyFixed *myfixed, GtkAdjustment *hadj, GtkAdjustment *vadj); -#endif - static GtkContainerClass *parent_class = NULL; +static gboolean gravity_works; guint gtk_myfixed_get_type () @@ -71,14 +116,9 @@ gtk_myfixed_get_type () sizeof (GtkMyFixedClass), (GtkClassInitFunc) gtk_myfixed_class_init, (GtkObjectInitFunc) gtk_myfixed_init, -#if (GTK_MINOR_VERSION > 0) /* reserved_1 */ NULL, /* reserved_2 */ NULL, (GtkClassInitFunc) NULL, -#else - (GtkArgSetFunc) NULL, - (GtkArgGetFunc) NULL, -#endif }; myfixed_type = gtk_type_unique (gtk_container_get_type (), &myfixed_info); } @@ -96,18 +136,11 @@ gtk_myfixed_class_init (GtkMyFixedClass *klass) object_class = (GtkObjectClass*) klass; widget_class = (GtkWidgetClass*) klass; container_class = (GtkContainerClass*) klass; - -#if (GTK_MINOR_VERSION > 0) parent_class = gtk_type_class (GTK_TYPE_CONTAINER); -#else - parent_class = gtk_type_class (gtk_container_get_type ()); -#endif widget_class->map = gtk_myfixed_map; -#if (GTK_MINOR_VERSION == 0) - widget_class->unmap = gtk_myfixed_unmap; -#endif widget_class->realize = gtk_myfixed_realize; + widget_class->unrealize = gtk_myfixed_unrealize; widget_class->size_request = gtk_myfixed_size_request; widget_class->size_allocate = gtk_myfixed_size_allocate; widget_class->draw = gtk_myfixed_draw; @@ -115,17 +148,10 @@ gtk_myfixed_class_init (GtkMyFixedClass *klass) container_class->add = gtk_myfixed_add; container_class->remove = gtk_myfixed_remove; -#if (GTK_MINOR_VERSION > 0) - container_class->forall = gtk_myfixed_foreach; -#else - container_class->foreach = gtk_myfixed_foreach; -#endif + container_class->forall = gtk_myfixed_forall; -#if (GTK_MINOR_VERSION > 0) container_class->child_type = gtk_myfixed_child_type; -#endif -#if (GTK_MINOR_VERSION > 0) klass->set_scroll_adjustments = gtk_myfixed_scroll_set_adjustments; widget_class->set_scroll_adjustments_signal = @@ -135,31 +161,34 @@ gtk_myfixed_class_init (GtkMyFixedClass *klass) GTK_SIGNAL_OFFSET (GtkMyFixedClass, set_scroll_adjustments), gtk_marshal_NONE__POINTER_POINTER, GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT); -#endif } -#if (GTK_MINOR_VERSION > 0) static GtkType gtk_myfixed_child_type (GtkContainer *container) { return GTK_TYPE_WIDGET; } -#endif static void gtk_myfixed_init (GtkMyFixed *myfixed) { GTK_WIDGET_UNSET_FLAGS (myfixed, GTK_NO_WINDOW); -#if (GTK_MINOR_VERSION == 0) - GTK_WIDGET_SET_FLAGS (myfixed, GTK_BASIC); -#endif - -#if (GTK_MINOR_VERSION > 0) myfixed->shadow_type = GTK_MYSHADOW_NONE; -#endif myfixed->children = NULL; + + myfixed->width = 20; + myfixed->height = 20; + + myfixed->bin_window = NULL; + + myfixed->configure_serial = 0; + myfixed->scroll_x = 0; + myfixed->scroll_y = 0; + myfixed->visibility = GDK_VISIBILITY_PARTIAL; + + myfixed->clear_on_draw = TRUE; } GtkWidget* @@ -172,13 +201,12 @@ gtk_myfixed_new () return GTK_WIDGET (myfixed); } -#if (GTK_MINOR_VERSION > 0) void gtk_myfixed_scroll_set_adjustments (GtkMyFixed *myfixed, GtkAdjustment *hadj, GtkAdjustment *vadj) { - /* OK, this is embarassing, but this function has to be here */ + /* We handle scrolling in the wxScrolledWindow, not here. */ } void @@ -199,15 +227,24 @@ gtk_myfixed_set_shadow_type (GtkMyFixed *myfixed, } } } -#endif +void +gtk_my_fixed_set_clear (GtkMyFixed *myfixed, + gboolean clear) +{ + g_return_if_fail (myfixed != NULL); + g_return_if_fail (GTK_IS_MYFIXED (myfixed)); + + myfixed->clear_on_draw = clear; +} + void gtk_myfixed_put (GtkMyFixed *myfixed, GtkWidget *widget, - gint16 x, - gint16 y, - gint16 width, - gint16 height) + gint x, + gint y, + gint width, + gint height) { GtkMyFixedChild *child_info; @@ -216,33 +253,42 @@ gtk_myfixed_put (GtkMyFixed *myfixed, g_return_if_fail (widget != NULL); child_info = g_new (GtkMyFixedChild, 1); + child_info->widget = widget; child_info->x = x; child_info->y = y; child_info->width = width; child_info->height = height; + myfixed->children = g_list_append (myfixed->children, child_info); + gtk_widget_set_parent (widget, GTK_WIDGET (myfixed)); - myfixed->children = g_list_append (myfixed->children, child_info); + if (GTK_WIDGET_REALIZED (myfixed)) + gtk_widget_set_parent_window (widget, myfixed->bin_window); + + if (!IS_ONSCREEN (x, y)) + GTK_PRIVATE_SET_FLAG (widget, GTK_IS_OFFSCREEN); if (GTK_WIDGET_REALIZED (myfixed)) gtk_widget_realize (widget); + gtk_widget_set_usize (widget, width, height); + if (GTK_WIDGET_VISIBLE (myfixed) && GTK_WIDGET_VISIBLE (widget)) { if (GTK_WIDGET_MAPPED (myfixed)) gtk_widget_map (widget); - gtk_widget_queue_resize (GTK_WIDGET (myfixed)); + gtk_widget_queue_resize (widget); } } void gtk_myfixed_move (GtkMyFixed *myfixed, GtkWidget *widget, - gint16 x, - gint16 y) + gint x, + gint y) { GtkMyFixedChild *child; GList *children; @@ -259,7 +305,14 @@ gtk_myfixed_move (GtkMyFixed *myfixed, if (child->widget == widget) { - gtk_myfixed_set_size( myfixed, widget, x, y, child->width, child->height ); + if ((child->x == x) && (child->y == y)) + break; + + child->x = x; + child->y = y; + + if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed)) + gtk_widget_queue_resize (widget); break; } } @@ -268,8 +321,8 @@ gtk_myfixed_move (GtkMyFixed *myfixed, void gtk_myfixed_resize (GtkMyFixed *myfixed, GtkWidget *widget, - gint16 width, - gint16 height) + gint width, + gint height) { GtkMyFixedChild *child; GList *children; @@ -286,8 +339,17 @@ gtk_myfixed_resize (GtkMyFixed *myfixed, if (child->widget == widget) { - gtk_myfixed_set_size( myfixed, widget, child->x, child->y, width, height ); - break; + if ((child->width == width) && (child->height == height)) + break; + + child->width = width; + child->height = height; + + gtk_widget_set_usize (widget, width, height); + + if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed)) + gtk_widget_queue_resize (widget); + break; } } } @@ -295,10 +357,10 @@ gtk_myfixed_resize (GtkMyFixed *myfixed, void gtk_myfixed_set_size (GtkMyFixed *myfixed, GtkWidget *widget, - gint16 x, - gint16 y, - gint16 width, - gint16 height) + gint x, + gint y, + gint width, + gint height) { GtkMyFixedChild *child; GList *children; @@ -325,32 +387,12 @@ gtk_myfixed_set_size (GtkMyFixed *myfixed, child->y = y; child->width = width; child->height = height; - + + gtk_widget_set_usize (widget, width, height); + if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed)) - { - if ( (child->width > 1) && - (child->height > 1) && - !(GTK_WIDGET_REALIZED(widget) && GTK_IS_NOTEBOOK(widget)) ) - { - child_allocation.x = child->x; - child_allocation.y = child->y; - child_allocation.width = MAX( child->width, 1 ); - child_allocation.height = MAX( child->height, 1 ); - - /* work around for GTK bug when moving widgets outside - the X window -> do NOT move them entirely outside */ - if (child_allocation.y + child_allocation.height < 0) - child_allocation.y = -child_allocation.height; - if (child_allocation.x + child_allocation.width < 0) - child_allocation.x = -child_allocation.width; - - gtk_widget_size_allocate (widget, &child_allocation); - } - else - { - gtk_widget_queue_resize (GTK_WIDGET (myfixed)); - } - } + gtk_widget_queue_resize (widget); + break; } } @@ -375,30 +417,26 @@ gtk_myfixed_map (GtkWidget *widget) child = children->data; children = children->next; - if (GTK_WIDGET_VISIBLE (child->widget) && !GTK_WIDGET_MAPPED (child->widget)) + if ( GTK_WIDGET_VISIBLE (child->widget) && + !GTK_WIDGET_MAPPED (child->widget) && + !GTK_WIDGET_IS_OFFSCREEN (child->widget)) + { gtk_widget_map (child->widget); + } } gdk_window_show (widget->window); + gdk_window_show (myfixed->bin_window); } -#if (GTK_MINOR_VERSION == 0) -static void -gtk_myfixed_unmap (GtkWidget *widget) -{ - g_return_if_fail (widget != NULL); - g_return_if_fail (GTK_IS_MYFIXED (widget)); - - GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED); -} -#endif - static void gtk_myfixed_realize (GtkWidget *widget) { GtkMyFixed *myfixed; GdkWindowAttr attributes; gint attributes_mask; + GtkMyFixedChild *child; + GList *children; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_MYFIXED (widget)); @@ -409,7 +447,6 @@ gtk_myfixed_realize (GtkWidget *widget) attributes.window_type = GDK_WINDOW_CHILD; -#if (GTK_MINOR_VERSION > 0) attributes.x = widget->allocation.x; attributes.y = widget->allocation.y; attributes.width = widget->allocation.width; @@ -436,17 +473,24 @@ gtk_myfixed_realize (GtkWidget *widget) attributes.height -= 4; } + /* minimal size */ if (attributes.width < 2) attributes.width = 2; if (attributes.height < 2) attributes.height = 2; -#else - attributes.x = widget->allocation.x; - attributes.y = widget->allocation.y; - attributes.width = 32000; - attributes.height = 32000; -#endif + attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (widget); attributes.colormap = gtk_widget_get_colormap (widget); + attributes.event_mask = + GDK_VISIBILITY_NOTIFY_MASK; + attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; + + widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), + &attributes, attributes_mask); + gdk_window_set_user_data (widget->window, widget); + + attributes.x = 0; + attributes.y = 0; + attributes.event_mask = gtk_widget_get_events (widget); attributes.event_mask |= GDK_EXPOSURE_MASK | @@ -463,14 +507,49 @@ gtk_myfixed_realize (GtkWidget *widget) GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK | GDK_FOCUS_CHANGE_MASK; - attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; - widget->window = gdk_window_new( gtk_widget_get_parent_window (widget), &attributes, - attributes_mask); - gdk_window_set_user_data (widget->window, widget); + myfixed->bin_window = gdk_window_new (widget->window, + &attributes, attributes_mask); + gdk_window_set_user_data (myfixed->bin_window, widget); 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, myfixed->bin_window, GTK_STATE_NORMAL); + + /* add filters for intercepting visibility and expose events */ + gdk_window_add_filter (widget->window, gtk_myfixed_main_filter, myfixed); + gdk_window_add_filter (myfixed->bin_window, gtk_myfixed_filter, myfixed); + + /* we NEED gravity or we'll give up */ + gravity_works = gdk_window_set_static_gravities (myfixed->bin_window, TRUE); + + /* cannot be done before realisation */ + children = myfixed->children; + while (children) + { + child = children->data; + children = children->next; + + gtk_widget_set_parent_window (child->widget, myfixed->bin_window); + } +} + +static void +gtk_myfixed_unrealize (GtkWidget *widget) +{ + GtkMyFixed *myfixed; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_MYFIXED (widget)); + + myfixed = GTK_MYFIXED (widget); + + gdk_window_set_user_data (myfixed->bin_window, NULL); + gdk_window_destroy (myfixed->bin_window); + myfixed->bin_window = NULL; + + if (GTK_WIDGET_CLASS (parent_class)->unrealize) + (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget); } static void @@ -512,9 +591,10 @@ gtk_myfixed_size_allocate (GtkWidget *widget, { GtkMyFixed *myfixed; gint border; + gint x,y,w,h; GtkMyFixedChild *child; GtkAllocation child_allocation; - GList *children; + GList *children; g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_MYFIXED(widget)); @@ -522,8 +602,18 @@ gtk_myfixed_size_allocate (GtkWidget *widget, myfixed = GTK_MYFIXED (widget); + children = myfixed->children; + while (children) + { + child = children->data; + children = children->next; + + gtk_myfixed_position_child (myfixed, child); + gtk_myfixed_allocate_child (myfixed, child); + } + widget->allocation = *allocation; -#if (GTK_MINOR_VERSION > 0) + if (myfixed->shadow_type == GTK_MYSHADOW_NONE) border = 0; else @@ -531,195 +621,202 @@ gtk_myfixed_size_allocate (GtkWidget *widget, border = 1; else border = 2; -#else - border = 0; -#endif + + x = allocation->x + border; + y = allocation->y + border; + w = allocation->width - border*2; + h = allocation->height - border*2; if (GTK_WIDGET_REALIZED (widget)) { - gdk_window_move_resize( widget->window, - allocation->x+border, allocation->y+border, -#if (GTK_MINOR_VERSION > 0) - allocation->width-border*2, allocation->height-border*2 -#else - 32000, 32000 -#endif - ); - } - - children = myfixed->children; - while (children) - { - child = children->data; - children = children->next; - - if (GTK_WIDGET_VISIBLE (child->widget)) - { -/* please look at the text in wxWindow::DoSetSize() on why the - test GTK_WIDGET_REALIZED() has to be here */ -/* if (GTK_IS_NOTEBOOK(child->widget) && !GTK_WIDGET_REALIZED(child->widget)) - { - gtk_widget_queue_resize( child->widget ); - } - else */ - { - child_allocation.x = child->x; - child_allocation.y = child->y; - child_allocation.width = MAX( child->width, 1 ); - child_allocation.height = MAX( child->height, 1 ); - - /* work around for GTK bug when moving widgets outside - the X window -> do NOT move them entirely outside */ - if (child_allocation.y + child_allocation.height < 0) - child_allocation.y = -child_allocation.height; - if (child_allocation.x + child_allocation.width < 0) - child_allocation.x = -child_allocation.width; - - gtk_widget_size_allocate (child->widget, &child_allocation); - } - } + gdk_window_move_resize( widget->window, x, y, w, h ); + gdk_window_move_resize( myfixed->bin_window, 0, 0, w, h ); } } static void -gtk_myfixed_paint (GtkWidget *widget, - GdkRectangle *area) +gtk_myfixed_draw (GtkWidget *widget, + GdkRectangle *area) { + GtkMyFixed *myfixed; + GtkMyFixedChild *child; + GdkRectangle child_area; + GList *children; + g_return_if_fail (widget != NULL); g_return_if_fail (GTK_IS_MYFIXED (widget)); - g_return_if_fail (area != NULL); - if (GTK_WIDGET_DRAWABLE (widget)) - gdk_window_clear_area (widget->window, - area->x, area->y, - area->width, area->height); + myfixed = GTK_MYFIXED (widget); + + children = myfixed->children; + if ( !(GTK_WIDGET_APP_PAINTABLE (widget)) && + (myfixed->clear_on_draw)) + { + gdk_window_clear_area( myfixed->bin_window, + area->x, area->y, area->width, area->height); + } + + while (children) + { + child = children->data; + children = children->next; + + if (gtk_widget_intersect (child->widget, area, &child_area)) + gtk_widget_draw (child->widget, &child_area); + } } +/* static void -gtk_myfixed_draw (GtkWidget *widget, - GdkRectangle *area) +gtk_myfixed_draw_border (GtkMyFixed *myfixed) { - GtkMyFixed *myfixed; - GtkMyFixedChild *child; - GdkRectangle child_area; - GList *children; - - g_return_if_fail (widget != NULL); - g_return_if_fail (GTK_IS_MYFIXED (widget)); + GtkWidget *widget; + + widget = GTK_WIDGET(myfixed); - if (GTK_WIDGET_DRAWABLE (widget)) + if (myfixed->shadow_type == GTK_MYSHADOW_NONE) + return; + + if (myfixed->shadow_type == GTK_MYSHADOW_OUT) { - myfixed = GTK_MYFIXED (widget); - gtk_myfixed_paint (widget, area); - - children = myfixed->children; - while (children) - { - child = children->data; - children = children->next; + gtk_draw_shadow( widget->style, + widget->window, + GTK_STATE_NORMAL, + GTK_SHADOW_OUT, + 0, 0, + widget->allocation.width, + widget->allocation.height ); + return; + } - if (gtk_widget_intersect (child->widget, area, &child_area)) - gtk_widget_draw (child->widget, &child_area); - } + if (myfixed->shadow_type == GTK_MYSHADOW_IN) + { + gtk_draw_shadow( widget->style, + widget->window, + GTK_STATE_NORMAL, + GTK_SHADOW_IN, + 0, 0, + widget->allocation.width, + widget->allocation.height ); + return; + } + + if (myfixed->shadow_type == GTK_MYSHADOW_THIN) + { + GdkGC *gc; + gc = gdk_gc_new( widget->window ); + gdk_gc_set_foreground( gc, &widget->style->black ); + gdk_draw_rectangle( widget->window, gc, FALSE, + 0, 0, + widget->allocation.width-1, + widget->allocation.height-1 ); + gdk_gc_unref( gc ); + return; } } +*/ static gint gtk_myfixed_expose (GtkWidget *widget, GdkEventExpose *event) { - GtkMyFixed *myfixed; - GtkMyFixedChild *child; - GdkEventExpose child_event; - GList *children; + GtkMyFixed *myfixed; + GtkMyFixedChild *child; + GdkEventExpose child_event; + GList *children; + + g_return_val_if_fail (widget != NULL, FALSE); + g_return_val_if_fail (GTK_IS_MYFIXED (widget), FALSE); + g_return_val_if_fail (event != NULL, FALSE); - g_return_val_if_fail (widget != NULL, FALSE); - g_return_val_if_fail (GTK_IS_MYFIXED (widget), FALSE); - g_return_val_if_fail (event != NULL, FALSE); + myfixed = GTK_MYFIXED (widget); - if (GTK_WIDGET_DRAWABLE (widget)) +/* + if (event->window == widget->window) { - myfixed = GTK_MYFIXED (widget); + gtk_myfixed_draw_border( myfixed ); + return FALSE; + } +*/ - child_event = *event; + if (event->window != myfixed->bin_window) + return FALSE; - children = myfixed->children; - while (children) - { - child = children->data; - children = children->next; + children = myfixed->children; + while (children) + { + child = children->data; + children = children->next; + + child_event = *event; - if (GTK_WIDGET_NO_WINDOW (child->widget) && - gtk_widget_intersect (child->widget, &event->area, - &child_event.area)) + if (GTK_WIDGET_NO_WINDOW (child->widget) && + GTK_WIDGET_DRAWABLE (child->widget) && + gtk_widget_intersect (child->widget, &event->area, &child_event.area)) + { gtk_widget_event (child->widget, (GdkEvent*) &child_event); } } - return FALSE; + return FALSE; } static void gtk_myfixed_add (GtkContainer *container, GtkWidget *widget) { - g_return_if_fail (container != NULL); - g_return_if_fail (GTK_IS_MYFIXED (container)); - g_return_if_fail (widget != NULL); + g_return_if_fail (container != NULL); + g_return_if_fail (GTK_IS_MYFIXED (container)); + g_return_if_fail (widget != NULL); - gtk_myfixed_put (GTK_MYFIXED (container), widget, 0, 0, 20, 20 ); + gtk_myfixed_put (GTK_MYFIXED (container), widget, 0, 0, 20, 20 ); } static void gtk_myfixed_remove (GtkContainer *container, - GtkWidget *widget) + GtkWidget *widget) { - GtkMyFixed *myfixed; - GtkMyFixedChild *child; - GList *children; + GtkMyFixed *myfixed; + GtkMyFixedChild *child; + GList *children; - g_return_if_fail (container != NULL); - g_return_if_fail (GTK_IS_MYFIXED (container)); - g_return_if_fail (widget != NULL); + g_return_if_fail (container != NULL); + g_return_if_fail (GTK_IS_MYFIXED (container)); + g_return_if_fail (widget != NULL); - myfixed = GTK_MYFIXED (container); + myfixed = GTK_MYFIXED (container); - children = myfixed->children; - while (children) + children = myfixed->children; + while (children) { - child = children->data; + child = children->data; - if (child->widget == widget) + if (child->widget == widget) { - gboolean was_visible = GTK_WIDGET_VISIBLE (widget); - - gtk_widget_unparent (widget); + gtk_widget_unparent (widget); - /* security checks */ - g_return_if_fail (GTK_IS_WIDGET (widget)); + /* security checks */ + g_return_if_fail (GTK_IS_WIDGET (widget)); - myfixed->children = g_list_remove_link (myfixed->children, children); - g_list_free (children); - g_free (child); - - if (was_visible && GTK_WIDGET_VISIBLE (container)) - gtk_widget_queue_resize (GTK_WIDGET (container)); + myfixed->children = g_list_remove_link (myfixed->children, children); + g_list_free (children); + g_free (child); - /* security checks */ - g_return_if_fail (GTK_IS_WIDGET (widget)); - - break; + /* security checks */ + g_return_if_fail (GTK_IS_WIDGET (widget)); + + GTK_PRIVATE_UNSET_FLAG (widget, GTK_IS_OFFSCREEN); + + break; } - children = children->next; + children = children->next; } } static void -gtk_myfixed_foreach (GtkContainer *container, -#if (GTK_MINOR_VERSION > 0) +gtk_myfixed_forall (GtkContainer *container, gboolean include_internals, -#endif GtkCallback callback, gpointer callback_data) { @@ -744,6 +841,433 @@ gtk_myfixed_foreach (GtkContainer *container, } +/* Operations on children + */ + +static void +gtk_myfixed_position_child (GtkMyFixed *myfixed, + GtkMyFixedChild *child) +{ + gint x; + gint y; + + x = child->x - myfixed->xoffset; + y = child->y - myfixed->yoffset; + + if (IS_ONSCREEN (x,y)) + { + if (GTK_WIDGET_MAPPED (myfixed) && + GTK_WIDGET_VISIBLE (child->widget)) + { + if (!GTK_WIDGET_MAPPED (child->widget)) + gtk_widget_map (child->widget); + } + + if (GTK_WIDGET_IS_OFFSCREEN (child->widget)) + GTK_PRIVATE_UNSET_FLAG (child->widget, GTK_IS_OFFSCREEN); + } + else + { + if (!GTK_WIDGET_IS_OFFSCREEN (child->widget)) + GTK_PRIVATE_SET_FLAG (child->widget, GTK_IS_OFFSCREEN); + + if (GTK_WIDGET_MAPPED (child->widget)) + gtk_widget_unmap (child->widget); + } +} + +static void +gtk_myfixed_allocate_child (GtkMyFixed *myfixed, + GtkMyFixedChild *child) +{ + GtkAllocation allocation; + GtkRequisition requisition; + + allocation.x = child->x - myfixed->xoffset; + allocation.y = child->y - myfixed->yoffset; + gtk_widget_get_child_requisition (child->widget, &requisition); + allocation.width = requisition.width; + allocation.height = requisition.height; + + gtk_widget_size_allocate (child->widget, &allocation); +} + +static void +gtk_myfixed_position_children (GtkMyFixed *myfixed) +{ + GList *tmp_list; + + tmp_list = myfixed->children; + while (tmp_list) + { + GtkMyFixedChild *child = tmp_list->data; + tmp_list = tmp_list->next; + + gtk_myfixed_position_child (myfixed, child); + } +} + +static void +gtk_myfixed_adjust_allocations_recurse (GtkWidget *widget, + gpointer cb_data) +{ + GtkMyFixedAdjData *data = cb_data; + + widget->allocation.x += data->dx; + widget->allocation.y += data->dy; + + if (GTK_WIDGET_NO_WINDOW (widget) && + GTK_IS_CONTAINER (widget)) + gtk_container_forall (GTK_CONTAINER (widget), + gtk_myfixed_adjust_allocations_recurse, + cb_data); +} + +static void +gtk_myfixed_adjust_allocations (GtkMyFixed *myfixed, + gint dx, + gint dy) +{ + GList *tmp_list; + GtkMyFixedAdjData data; + + data.dx = dx; + data.dy = dy; + + tmp_list = myfixed->children; + while (tmp_list) + { + GtkMyFixedChild *child = tmp_list->data; + tmp_list = tmp_list->next; + + child->widget->allocation.x += dx; + child->widget->allocation.y += dy; + + if (GTK_WIDGET_NO_WINDOW (child->widget) && + GTK_IS_CONTAINER (child->widget)) + gtk_container_forall (GTK_CONTAINER (child->widget), + gtk_myfixed_adjust_allocations_recurse, + &data); + } +} + +/* Callbacks */ + +/* Send a synthetic expose event to the widget + */ +static void +gtk_myfixed_expose_area (GtkMyFixed *myfixed, + gint x, gint y, gint width, gint height) +{ + if (myfixed->visibility == GDK_VISIBILITY_UNOBSCURED) + { + GdkEventExpose event; + + event.type = GDK_EXPOSE; + event.send_event = TRUE; + event.window = myfixed->bin_window; + event.count = 0; + + event.area.x = x; + event.area.y = y; + event.area.width = width; + event.area.height = height; + + gdk_window_ref (event.window); + gtk_widget_event (GTK_WIDGET (myfixed), (GdkEvent *)&event); + gdk_window_unref (event.window); + } +} + +/* This function is used to find events to process while scrolling + */ + +static Bool +gtk_myfixed_expose_predicate (Display *display, + XEvent *xevent, + XPointer arg) +{ + if ((xevent->type == Expose) || + ((xevent->xany.window == *(Window *)arg) && + (xevent->type == ConfigureNotify))) + return True; + else + return False; +} + +/* This is the main routine to do the scrolling. Scrolling is + * done by "Guffaw" scrolling, as in the Mozilla XFE, with + * a few modifications. + * + * The main improvement is that we keep track of whether we + * are obscured or not. If not, we ignore the generated expose + * events and instead do the exposes ourself, without having + * to wait for a roundtrip to the server. This also provides + * a limited form of expose-event compression, since we do + * the affected area as one big chunk. + */ + +void +gtk_myfixed_scroll (GtkMyFixed *myfixed, gint dx, gint dy) +{ + GtkWidget *widget; + XEvent xevent; + + gint x,y,w,h,border; + + widget = GTK_WIDGET (myfixed); + + myfixed->xoffset += dx; + myfixed->yoffset += dy; + + if (!GTK_WIDGET_MAPPED (myfixed)) + { + gtk_myfixed_position_children (myfixed); + return; + } + + gtk_myfixed_adjust_allocations (myfixed, -dx, -dy); + + if (myfixed->shadow_type == GTK_MYSHADOW_NONE) + border = 0; + else + if (myfixed->shadow_type == GTK_MYSHADOW_THIN) + border = 1; + else + border = 2; + + x = 0; + y = 0; + w = widget->allocation.width - 2*border; + h = widget->allocation.height - 2*border; + + if (dx > 0) + { + if (gravity_works) + { + gdk_window_resize (myfixed->bin_window, + w + dx, + h); + gdk_window_move (myfixed->bin_window, x-dx, y); + gdk_window_move_resize (myfixed->bin_window, x, y, w, h ); + } + else + { + /* FIXME */ + } + + gtk_myfixed_expose_area (myfixed, + MAX ((gint)w - dx, 0), + 0, + MIN (dx, w), + h); + } + else if (dx < 0) + { + if (gravity_works) + { + gdk_window_move_resize (myfixed->bin_window, + x + dx, + y, + w - dx, + h); + gdk_window_move (myfixed->bin_window, x, y); + gdk_window_resize (myfixed->bin_window, w, h ); + } + else + { + /* FIXME */ + } + + gtk_myfixed_expose_area (myfixed, + 0, + 0, + MIN (-dx, w), + h); + } + + if (dy > 0) + { + if (gravity_works) + { + gdk_window_resize (myfixed->bin_window, w, h + dy); + gdk_window_move (myfixed->bin_window, x, y-dy); + gdk_window_move_resize (myfixed->bin_window, + x, y, w, h ); + } + else + { + /* FIXME */ + } + + gtk_myfixed_expose_area (myfixed, + 0, + MAX ((gint)h - dy, 0), + w, + MIN (dy, h)); + } + else if (dy < 0) + { + if (gravity_works) + { + gdk_window_move_resize (myfixed->bin_window, + x, y+dy, w, h - dy ); + gdk_window_move (myfixed->bin_window, x, y); + gdk_window_resize (myfixed->bin_window, w, h ); + } + else + { + /* FIXME */ + } + gtk_myfixed_expose_area (myfixed, + 0, + 0, + w, + MIN (-dy, (gint)h)); + } + + gtk_myfixed_position_children (myfixed); + + /* We have to make sure that all exposes from this scroll get + * processed before we scroll again, or the expose events will + * have invalid coordinates. + * + * We also do expose events for other windows, since otherwise + * their updating will fall behind the scrolling + * + * This also avoids a problem in pre-1.0 GTK where filters don't + * have access to configure events that were compressed. + */ + + gdk_flush(); + while (XCheckIfEvent(GDK_WINDOW_XDISPLAY (myfixed->bin_window), + &xevent, + gtk_myfixed_expose_predicate, + (XPointer)&GDK_WINDOW_XWINDOW (myfixed->bin_window))) + { + GdkEvent event; + GtkWidget *event_widget; + + if ((xevent.xany.window == GDK_WINDOW_XWINDOW (myfixed->bin_window)) && + (gtk_myfixed_filter (&xevent, &event, myfixed) == GDK_FILTER_REMOVE)) + continue; + + if (xevent.type == Expose) + { + event.expose.window = gdk_window_lookup (xevent.xany.window); + gdk_window_get_user_data (event.expose.window, + (gpointer *)&event_widget); + + if (event_widget) + { + event.expose.type = GDK_EXPOSE; + event.expose.area.x = xevent.xexpose.x; + event.expose.area.y = xevent.xexpose.y; + event.expose.area.width = xevent.xexpose.width; + event.expose.area.height = xevent.xexpose.height; + event.expose.count = xevent.xexpose.count; + + gdk_window_ref (event.expose.window); + gtk_widget_event (event_widget, &event); + gdk_window_unref (event.expose.window); + } + } + } +} + +/* The main event filter. Actually, we probably don't really need + * to install this as a filter at all, since we are calling it + * directly above in the expose-handling hack. But in case scrollbars + * are fixed up in some manner... + * + * This routine identifies expose events that are generated when + * we've temporarily moved the bin_window_origin, and translates + * them or discards them, depending on whether we are obscured + * or not. + */ +static GdkFilterReturn +gtk_myfixed_filter (GdkXEvent *gdk_xevent, + GdkEvent *event, + gpointer data) +{ + XEvent *xevent; + GtkMyFixed *myfixed; + + xevent = (XEvent *)gdk_xevent; + myfixed = GTK_MYFIXED (data); + + switch (xevent->type) + { + case Expose: + if (xevent->xexpose.serial == myfixed->configure_serial) + { + if (myfixed->visibility == GDK_VISIBILITY_UNOBSCURED) + return GDK_FILTER_REMOVE; + else + { + xevent->xexpose.x += myfixed->scroll_x; + xevent->xexpose.y += myfixed->scroll_y; + + break; + } + } + break; + + case ConfigureNotify: + if ((xevent->xconfigure.x != 0) || (xevent->xconfigure.y != 0)) + { + myfixed->configure_serial = xevent->xconfigure.serial; + myfixed->scroll_x = xevent->xconfigure.x; + myfixed->scroll_y = xevent->xconfigure.y; + } + break; + } + + return GDK_FILTER_CONTINUE; +} + +/* Although GDK does have a GDK_VISIBILITY_NOTIFY event, + * there is no corresponding event in GTK, so we have + * to get the events from a filter + */ +static GdkFilterReturn +gtk_myfixed_main_filter (GdkXEvent *gdk_xevent, + GdkEvent *event, + gpointer data) +{ + XEvent *xevent; + GtkMyFixed *myfixed; + + xevent = (XEvent *)gdk_xevent; + myfixed = GTK_MYFIXED (data); + + if (xevent->type == VisibilityNotify) + { + switch (xevent->xvisibility.state) + { + case VisibilityFullyObscured: + myfixed->visibility = GDK_VISIBILITY_FULLY_OBSCURED; + break; + + case VisibilityPartiallyObscured: + myfixed->visibility = GDK_VISIBILITY_PARTIAL; + break; + + case VisibilityUnobscured: + myfixed->visibility = GDK_VISIBILITY_UNOBSCURED; + break; + } + + return GDK_FILTER_REMOVE; + } + + + return GDK_FILTER_CONTINUE; +} + + + + #ifdef __cplusplus } #endif /* __cplusplus */