/* Subtracts one region from another. The result is a region containing
* all the pixels which are in source1, but which are not in source2. */
int
clip_GDK_REGIONSUBTRACT(ClipMachine * ClipMachineMemory)
{
C_object *creg = _fetch_co_arg(ClipMachineMemory);
C_object *creg2 = _fetch_cobject(ClipMachineMemory, _clip_spar(ClipMachineMemory, 2));
C_object *cdest;
CHECKCOBJ(creg, GDK_IS_REGION(creg->object));
CHECKARG2(2, MAP_type_of_ClipVarType, NUMERIC_type_of_ClipVarType);
CHECKCOBJ(creg2, GDK_IS_REGION(creg->object));
gdk_region_subtract(GDK_REGION(creg), GDK_REGION(creg2));
if (creg)
{
cdest = _register_object(ClipMachineMemory, GDK_REGION(creg), GDK_TYPE_REGION, NULL, NULL);
if (cdest)
_clip_mclone(ClipMachineMemory, RETPTR(ClipMachineMemory), &cdest->obj);
}
return 0;
err:
return 1;
}
void ChromeClient::scroll(const IntSize& delta, const IntRect& rectToScroll, const IntRect& clipRect)
{
GdkWindow* window = GTK_WIDGET(m_webView)->window;
if (!window)
return;
// We cannot use gdk_window_scroll here because it is only able to
// scroll the whole window at once, and we often need to scroll
// portions of the window only (think frames).
GdkRectangle area = clipRect;
GdkRectangle moveRect;
GdkRectangle sourceRect = area;
sourceRect.x -= delta.width();
sourceRect.y -= delta.height();
GdkRegion* invalidRegion = gdk_region_rectangle(&area);
if (gdk_rectangle_intersect(&area, &sourceRect, &moveRect)) {
GdkRegion* moveRegion = gdk_region_rectangle(&moveRect);
gdk_window_move_region(window, moveRegion, delta.width(), delta.height());
gdk_region_offset(moveRegion, delta.width(), delta.height());
gdk_region_subtract(invalidRegion, moveRegion);
gdk_region_destroy(moveRegion);
}
gdk_window_invalidate_region(window, invalidRegion, FALSE);
gdk_region_destroy(invalidRegion);
}
void ChromeClient::scroll(const IntSize& delta, const IntRect& rectToScroll, const IntRect& clipRect)
{
if (!m_webView)
return;
GdkWindow* window = GTK_WIDGET(m_webView)->window;
if (!window)
return;
GdkRectangle area = clipRect;
GdkRectangle moveRect;
GdkRectangle sourceRect = area;
sourceRect.x -= delta.width();
sourceRect.y -= delta.height();
GdkRegion* invalidRegion = gdk_region_rectangle(&area);
if (gdk_rectangle_intersect(&area, &sourceRect, &moveRect)) {
GdkRegion* moveRegion = gdk_region_rectangle(&moveRect);
gdk_window_move_region(window, moveRegion, delta.width(), delta.height());
gdk_region_offset(moveRegion, delta.width(), delta.height());
gdk_region_subtract(invalidRegion, moveRegion);
gdk_region_destroy(moveRegion);
}
gdk_window_invalidate_region(window, invalidRegion, FALSE);
gdk_region_destroy(invalidRegion);
}
//__________________________________________________________________
void _HYPlatformButton::_Paint (Ptr p)
{
_HYButton * theParent = (_HYButton*)this;
GdkRectangle cRect = HYRect2GDKRect(*(_HYRect*)p);
if (!(theParent->settings.width&HY_COMPONENT_TRANSP_BG))
{
if (theParent->parentWindow->window)
{
GdkGC *buttonGC = gdk_gc_new (theParent->parentWindow->window);
gdk_gc_set_foreground(buttonGC,&bgColor);
GdkRegion * r1 = gdk_region_rectangle(&cRect),
* r2 = gdk_region_rectangle (&buttonRect);
gdk_region_subtract (r1,r2);
gdk_region_offset (r1,theParent->parentWindow->allocation.x,theParent->parentWindow->allocation.y);
gdk_gc_set_clip_region (buttonGC,r1);
gdk_draw_rectangle(theParent->parentWindow->window,buttonGC,true,cRect.x+theParent->parentWindow->allocation.x,
cRect.y+theParent->parentWindow->allocation.y, cRect.width, cRect.height);
gdk_region_destroy(r1);
gdk_region_destroy(r2);
g_object_unref (buttonGC);
}
}
(*theParent)._HYPlatformComponent::_Paint(p);
}
bool wxRegion::DoSubtract( const wxRegion& region )
{
if (region.m_refData == NULL || m_refData == NULL)
return false;
AllocExclusive();
#ifdef __WXGTK3__
cairo_region_subtract(M_REGIONDATA->m_region, M_REGIONDATA_OF(region)->m_region);
#else
gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() );
#endif
return true;
}
bool wxRegion::DoSubtract( const wxRegion& region )
{
wxCHECK_MSG( region.Ok(), false, _T("invalid region") );
if (!m_refData)
{
// subtracting from an invalid region doesn't make sense
return false;
}
AllocExclusive();
gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() );
return true;
}
void ChromeClient::scroll(const IntSize& delta, const IntRect& rectToScroll, const IntRect& clipRect)
{
GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(m_webView));
if (!window)
return;
m_pendingScrollInvalidations = true;
// We cannot use gdk_window_scroll here because it is only able to
// scroll the whole window at once, and we often need to scroll
// portions of the window only (think frames).
GdkRectangle area = clipRect;
GdkRectangle moveRect;
GdkRectangle sourceRect = area;
sourceRect.x -= delta.width();
sourceRect.y -= delta.height();
#ifdef GTK_API_VERSION_2
GdkRegion* invalidRegion = gdk_region_rectangle(&area);
if (gdk_rectangle_intersect(&area, &sourceRect, &moveRect)) {
GdkRegion* moveRegion = gdk_region_rectangle(&moveRect);
gdk_window_move_region(window, moveRegion, delta.width(), delta.height());
gdk_region_offset(moveRegion, delta.width(), delta.height());
gdk_region_subtract(invalidRegion, moveRegion);
gdk_region_destroy(moveRegion);
}
gdk_window_invalidate_region(window, invalidRegion, FALSE);
gdk_region_destroy(invalidRegion);
#else
cairo_region_t* invalidRegion = cairo_region_create_rectangle(&area);
if (gdk_rectangle_intersect(&area, &sourceRect, &moveRect)) {
cairo_region_t* moveRegion = cairo_region_create_rectangle(&moveRect);
gdk_window_move_region(window, moveRegion, delta.width(), delta.height());
cairo_region_translate(moveRegion, delta.width(), delta.height());
cairo_region_subtract(invalidRegion, moveRegion);
cairo_region_destroy(moveRegion);
}
gdk_window_invalidate_region(window, invalidRegion, FALSE);
cairo_region_destroy(invalidRegion);
#endif
}
static void sCombineRegion(cdCtxCanvas *ctxcanvas, GdkRegion* rgn)
{
switch(ctxcanvas->canvas->combine_mode)
{
case CD_UNION:
gdk_region_union(ctxcanvas->new_rgn, rgn);
break;
case CD_INTERSECT:
gdk_region_intersect(ctxcanvas->new_rgn, rgn);
break;
case CD_DIFFERENCE:
gdk_region_subtract(ctxcanvas->new_rgn, rgn);
break;
case CD_NOTINTERSECT:
gdk_region_xor(ctxcanvas->new_rgn, rgn);
break;
}
gdk_region_destroy(rgn);
}
static GdkRegion *
gdk_window_clip_changed (GdkWindow *window,
GdkRectangle *old_clip,
GdkRectangle *new_clip)
{
GdkWindowImplWin32 *impl;
GdkWindowObject *obj;
GdkRegion *old_clip_region;
GdkRegion *new_clip_region;
if (((GdkWindowObject *)window)->input_only)
return NULL;
obj = (GdkWindowObject *) window;
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
old_clip_region = gdk_region_rectangle (old_clip);
new_clip_region = gdk_region_rectangle (new_clip);
/* Trim invalid region of window to new clip rectangle
*/
if (obj->update_area)
gdk_region_intersect (obj->update_area, new_clip_region);
/* Invalidate newly exposed portion of window
*/
gdk_region_subtract (new_clip_region, old_clip_region);
if (!gdk_region_empty (new_clip_region))
gdk_window_tmp_unset_bg (window);
else
{
gdk_region_destroy (new_clip_region);
new_clip_region = NULL;
}
gdk_region_destroy (old_clip_region);
return new_clip_region;
}
static VALUE
rg_subtract(VALUE self, VALUE region)
{
gdk_region_subtract(_SELF(self), _SELF(region));
return self;
}
void
gdk_window_move_region (GdkWindow *window,
GdkRegion *region,
gint dx,
gint dy)
{
GdkRegion *invalidate_region;
GdkWindowImplWin32 *impl;
GdkWindowObject *obj;
GdkRectangle src_rect, dest_rect;
HRGN hrgn;
RECT clipRect, destRect;
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
obj = GDK_WINDOW_OBJECT (window);
impl = GDK_WINDOW_IMPL_WIN32 (obj->impl);
if (dx == 0 && dy == 0)
return;
/* Move the current invalid region */
if (obj->update_area)
gdk_region_offset (obj->update_area, dx, dy);
/* impl->position_info.clip_rect isn't meaningful for toplevels */
if (GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD)
src_rect = impl->position_info.clip_rect;
else
{
src_rect.x = 0;
src_rect.y = 0;
src_rect.width = impl->width;
src_rect.height = impl->height;
}
invalidate_region = gdk_region_rectangle (&src_rect);
dest_rect = src_rect;
dest_rect.x += dx;
dest_rect.y += dy;
gdk_rectangle_intersect (&dest_rect, &src_rect, &dest_rect);
if (dest_rect.width > 0 && dest_rect.height > 0)
{
GdkRegion *tmp_region;
tmp_region = gdk_region_rectangle (&dest_rect);
gdk_region_subtract (invalidate_region, tmp_region);
gdk_region_destroy (tmp_region);
}
/* no guffaw scroll on win32 */
hrgn = _gdk_win32_gdkregion_to_hrgn(invalidate_region, 0, 0);
gdk_region_destroy (invalidate_region);
destRect.left = dest_rect.y;
destRect.top = dest_rect.x;
destRect.right = dest_rect.x + dest_rect.width;
destRect.bottom = dest_rect.y + dest_rect.height;
clipRect.left = src_rect.y;
clipRect.top = src_rect.x;
clipRect.right = src_rect.x + src_rect.width;
clipRect.bottom = src_rect.y + src_rect.height;
g_print ("ScrollWindowEx(%d, %d, ...) - if you see this work, remove trace;)\n", dx, dy);
API_CALL(ScrollWindowEx, (GDK_WINDOW_HWND (window),
dx, dy, /* in: scroll offsets */
NULL, /* in: scroll rect, NULL == entire client area */
&clipRect, /* in: restrict to */
hrgn, /* in: update region */
NULL, /* out: update rect */
SW_INVALIDATE));
API_CALL(DeleteObject, (hrgn));
}
void FloatingWindow::display(bool startup)
// Does the bookkeeping necessary for displaying the floating box.
// startup: whether the box is started at program startup.
{
// Settings.
extern Settings *settings;
// The parameters of all the windows.
WindowData window_parameters(false);
// Clear the new window's position.
my_gdk_rectangle.x = 0;
my_gdk_rectangle.y = 0;
my_gdk_rectangle.width = 0;
my_gdk_rectangle.height = 0;
// At program startup extract the position and size of the window from the general configuration.
// It does not matter whether the space for the window is already taken up by another window,
// because the user wishes to use the coordinates that he has set for this window.
for (unsigned int i = 0; i < window_parameters.widths.size(); i++) {
if ((window_parameters.ids[i] == window_id) && (window_parameters.titles[i] == title) && startup) {
my_gdk_rectangle.x = window_parameters.x_positions[i];
my_gdk_rectangle.y = window_parameters.y_positions[i];
my_gdk_rectangle.width = window_parameters.widths[i];
my_gdk_rectangle.height = window_parameters.heights[i];
}
}
// Reject zero width and zero height values on startup.
if ((my_gdk_rectangle.width == 0) || (my_gdk_rectangle.height == 0))
startup = false;
// When a new window needs to be allocated, there are a few steps to be taken.
if (!startup) {
// Step 1: The area rectangle where the window should fit in is defined.
GdkRectangle area_rectangle;
area_rectangle.x = 0;
area_rectangle.y = 0;
area_rectangle.width = 0;
area_rectangle.height = 0;
{
guint width, height;
gtk_layout_get_size (GTK_LAYOUT (layout), &width, &height);
area_rectangle.width = width;
area_rectangle.height = height;
}
// Step 2: An available region is made of that whole area.
GdkRegion *available_region = gdk_region_rectangle(&area_rectangle);
// Step 3: The regions of each of the open windows is substracted from the available region.
for (unsigned int i = 0; i < settings->session.open_floating_windows.size(); i++) {
FloatingWindow * floating_window = (FloatingWindow *) settings->session.open_floating_windows[i];
GdkRectangle rectangle = floating_window->rectangle_get();
GdkRegion *region = gdk_region_rectangle(&rectangle);
gdk_region_subtract(available_region, region);
gdk_region_destroy(region);
}
// Step 4: The rectangles that the area region consists of are requested,
// and the biggest suitable rectangle is chosen for the window.
// A rectangle is considered suitable if it has at least 10% of the width, and 10% of the height of the area rectangle.
GdkRectangle *gdk_rectangles = NULL;
gint rectangle_count = 0;
gdk_region_get_rectangles(available_region, &gdk_rectangles, &rectangle_count);
for (int i = 0; i < rectangle_count; ++i) {
GdkRectangle & rectangle = gdk_rectangles[i];
if (rectangle.width >= (area_rectangle.width / 10)) {
if (rectangle.height >= (area_rectangle.height / 10)) {
if ((rectangle.width * rectangle.height) > (my_gdk_rectangle.width * my_gdk_rectangle.height)) {
my_gdk_rectangle = rectangle;
}
}
}
}
g_free(gdk_rectangles);
// Step 5: The available region is destroyed.
gdk_region_destroy(available_region);
// Step 6: If no area big enough is found, then the window that takes most space in the area is chosen,
// the longest side is halved, and the new window is put in that freed area.
if ((my_gdk_rectangle.width == 0) || (my_gdk_rectangle.height == 0)) {
FloatingWindow * resize_window_pointer = NULL;
int largest_size = 0;
for (unsigned int i = 0; i < settings->session.open_floating_windows.size(); i++) {
FloatingWindow *floating_window = (FloatingWindow *) settings->session.open_floating_windows[i];
GdkRectangle rectangle = floating_window->rectangle_get ();
int size = rectangle.width * rectangle.height;
if (size > largest_size) {
resize_window_pointer = floating_window;
largest_size = size;
}
}
if (resize_window_pointer) {
GdkRectangle resize_window_rectangle = resize_window_pointer->rectangle_get();
my_gdk_rectangle = resize_window_pointer->rectangle_get();
if (resize_window_rectangle.width > resize_window_rectangle.height) {
resize_window_rectangle.width /= 2;
my_gdk_rectangle.width /= 2;
my_gdk_rectangle.x += resize_window_rectangle.width;
} else {
resize_window_rectangle.height /= 2;
my_gdk_rectangle.height /= 2;
my_gdk_rectangle.y += resize_window_rectangle.height;
}
resize_window_pointer->rectangle_set (resize_window_rectangle);
}
}
}
// Add the window to the layout and set its position and size.
gtk_layout_put (GTK_LAYOUT (layout), vbox_window, my_gdk_rectangle.x, my_gdk_rectangle.y);
rectangle_set (my_gdk_rectangle);
// Store a pointer to this window in the Session.
settings->session.open_floating_windows.push_back(gpointer (this));
}
static void
display_entry (MetaTabPopup *popup,
TabEntry *te)
{
GdkRectangle rect;
GdkRegion *region;
GdkRegion *inner_region;
GdkWindow *window;
if (popup->current_selected_entry)
{
if (popup->outline)
unselect_image (popup->current_selected_entry->widget);
else
unselect_workspace (popup->current_selected_entry->widget);
}
gtk_label_set_markup (GTK_LABEL (popup->label), te->title);
if (popup->outline)
select_image (te->widget);
else
select_workspace (te->widget);
if (popup->outline)
{
/* Do stuff behind gtk's back */
gdk_window_hide (gtk_widget_get_window(popup->outline_window));
meta_core_increment_event_serial (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()));
rect = te->rect;
rect.x = 0;
rect.y = 0;
window = gtk_widget_get_window(GTK_WIDGET(popup->outline_window));
gdk_window_move_resize (window,
te->rect.x, te->rect.y,
te->rect.width, te->rect.height);
#if GTK_CHECK_VERSION(3, 0, 0)
GdkRGBA black = { 0.0, 0.0, 0.0, 1.0 };
gdk_window_set_background_rgba (window, &black);
#else
gdk_window_set_background (window,
&popup->outline_window->style->black);
#endif
region = gdk_region_rectangle (&rect);
inner_region = gdk_region_rectangle (&te->inner_rect);
gdk_region_subtract (region, inner_region);
gdk_region_destroy (inner_region);
gdk_window_shape_combine_region (window,
region,
0, 0);
gdk_region_destroy (region);
/* This should piss off gtk a bit, but we don't want to raise
* above the tab popup. So, instead of calling gtk_widget_show,
* we manually set the window as mapped and then manually map it
* with gdk functions.
*/
#if GTK_CHECK_VERSION(3, 0, 0)
gtk_widget_set_mapped (popup->outline_window, TRUE);
#else
GTK_WIDGET_SET_FLAGS (popup->outline_window, GTK_MAPPED);
#endif
gdk_window_show_unraised (window);
}
/* Must be before we handle an expose for the outline window */
popup->current_selected_entry = te;
}
/* Doesn't handle HIPPO_WINDOW_STATE_ACTIVE - see comment below */
static HippoWindowState
get_window_state(Display *display, Window window)
{
HippoWindowState result = HIPPO_WINDOW_STATE_HIDDEN;
XWindowAttributes window_attributes;
GdkRectangle rect;
GdkRegion *visible_region = NULL;
Window child = None;
Window root;
Window parent;
Window *children = NULL;
guint n_children;
gdk_error_trap_push();
/* First check if the window and all ancestors are mapped
*/
if (!XGetWindowAttributes(display, window, &window_attributes)) {
g_debug("XGetWindowAttributes failed\n");
goto out;
}
if (window_attributes.map_state != IsViewable)
goto out;
/* Get the area of the window in parent coordinates
*/
rect.x = window_attributes.x;
rect.y = window_attributes.y;
rect.width = window_attributes.width;
rect.height = window_attributes.height;
visible_region = gdk_region_rectangle(&rect);
if (!XQueryTree(display, window, &root, &parent, &children, &n_children)) {
g_debug("XQueryTree failed\n");
goto out;
}
XFree(children);
children = NULL;
child = window;
window = parent;
/* Walk up the hierarchy, clipping to parents, and subtracting
* overlayed siblings (yuck!)
*/
while (TRUE) {
GdkRegion *parent_region;
gboolean seen_child = FALSE;
int x, y;
unsigned int width, height, border, depth;
unsigned int i;
gdk_region_get_clipbox(visible_region, &rect);
/* Clip to parent */
if (!XGetGeometry(display, window, &root, &x, &y, &width, &height, &border, &depth)) {
g_debug("XGetGeometry failed\n");
goto out;
}
rect.x = 0;
rect.y = 0;
rect.width = width;
rect.height= height;
parent_region = gdk_region_rectangle(&rect);
gdk_region_intersect(visible_region, parent_region);
gdk_region_destroy(parent_region);
if (gdk_region_empty(visible_region))
goto out;
if (!XQueryTree(display, window, &root, &parent, &children, &n_children)) {
g_debug("XQueryTree failed\n");
goto out;
}
for (i = 0; i < n_children; i++) {
if (seen_child) {
/* A sibling above */
GdkRegion *child_region;
XWindowAttributes child_attributes;
if (!XGetWindowAttributes(display, children[i], &child_attributes)) {
g_debug("XGetWindowAttributes failed for child\n");
goto out;
}
if (child_attributes.map_state == IsViewable) {
rect.x = child_attributes.x - child_attributes.border_width;
rect.y = child_attributes.y - child_attributes.border_width;
rect.width = child_attributes.width + 2 * child_attributes.border_width;
rect.height = child_attributes.height + 2 * child_attributes.border_width;
child_region = gdk_region_rectangle(&rect);
gdk_region_subtract(visible_region, child_region);
gdk_region_destroy(child_region);
if (gdk_region_empty(visible_region))
goto out;
}
} else if (children[i] == child) {
seen_child = TRUE;
}
}
XFree(children);
children = NULL;
if (window == root)
break;
child = window;
window = parent;
/* Translate to parent coordinates */
gdk_region_offset(visible_region, x, y);
}
if (!gdk_region_empty(visible_region))
result = HIPPO_WINDOW_STATE_ONSCREEN;
out:
gdk_error_trap_pop();
if (children)
XFree(children);
if (visible_region)
gdk_region_destroy(visible_region);
return result;
}
