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-rw-r--r--src/viewport.cpp27
-rw-r--r--src/window.cpp10
-rw-r--r--src/window_gui.h29
3 files changed, 33 insertions, 33 deletions
diff --git a/src/viewport.cpp b/src/viewport.cpp
index 303e02760..3e4c2d273 100644
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -266,35 +266,36 @@ void InitializeWindowViewport(Window *w, int x, int y,
static Point _vp_move_offs;
-static void DoSetViewportPosition(const Window *w, int left, int top, int width, int height)
+static void DoSetViewportPosition(Window::IteratorToFront it, int left, int top, int width, int height)
{
- for (const Window *w : Window::IterateFromBack(w)) {
+ for (; !it.IsEnd(); ++it) {
+ const Window *w = *it;
if (left + width > w->left &&
w->left + w->width > left &&
top + height > w->top &&
w->top + w->height > top) {
if (left < w->left) {
- DoSetViewportPosition(w, left, top, w->left - left, height);
- DoSetViewportPosition(w, left + (w->left - left), top, width - (w->left - left), height);
+ DoSetViewportPosition(it, left, top, w->left - left, height);
+ DoSetViewportPosition(it, left + (w->left - left), top, width - (w->left - left), height);
return;
}
if (left + width > w->left + w->width) {
- DoSetViewportPosition(w, left, top, (w->left + w->width - left), height);
- DoSetViewportPosition(w, left + (w->left + w->width - left), top, width - (w->left + w->width - left), height);
+ DoSetViewportPosition(it, left, top, (w->left + w->width - left), height);
+ DoSetViewportPosition(it, left + (w->left + w->width - left), top, width - (w->left + w->width - left), height);
return;
}
if (top < w->top) {
- DoSetViewportPosition(w, left, top, width, (w->top - top));
- DoSetViewportPosition(w, left, top + (w->top - top), width, height - (w->top - top));
+ DoSetViewportPosition(it, left, top, width, (w->top - top));
+ DoSetViewportPosition(it, left, top + (w->top - top), width, height - (w->top - top));
return;
}
if (top + height > w->top + w->height) {
- DoSetViewportPosition(w, left, top, width, (w->top + w->height - top));
- DoSetViewportPosition(w, left, top + (w->top + w->height - top), width, height - (w->top + w->height - top));
+ DoSetViewportPosition(it, left, top, width, (w->top + w->height - top));
+ DoSetViewportPosition(it, left, top + (w->top + w->height - top), width, height - (w->top + w->height - top));
return;
}
@@ -380,7 +381,11 @@ static void SetViewportPosition(Window *w, int x, int y)
i = top + height - _screen.height;
if (i >= 0) height -= i;
- if (height > 0) DoSetViewportPosition(w->z_front, left, top, width, height);
+ if (height > 0) {
+ Window::IteratorToFront it(w);
+ ++it;
+ DoSetViewportPosition(it, left, top, width, height);
+ }
}
}
diff --git a/src/window.cpp b/src/window.cpp
index d6901bd97..9b51eafd8 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -896,7 +896,10 @@ static bool MayBeShown(const Window *w)
*/
static void DrawOverlappedWindow(Window *w, int left, int top, int right, int bottom)
{
- for (const Window *v : Window::IterateFromBack(w->z_front)) {
+ Window::IteratorToFront it(w);
+ ++it;
+ for (; !it.IsEnd(); ++it) {
+ const Window *v = *it;
if (MayBeShown(v) &&
right > v->left &&
bottom > v->top &&
@@ -2530,7 +2533,10 @@ static bool MaybeBringWindowToFront(Window *w)
w_height = w->unshaded_size.height;
}
- for (Window *u : Window::IterateFromBack(w->z_front)) {
+ Window::IteratorToFront it(w);
+ ++it;
+ for (; !it.IsEnd(); ++it) {
+ Window *u = *it;
/* A modal child will prevent the activation of the parent window */
if (u->parent == w && (u->window_desc->flags & WDF_MODAL)) {
u->SetWhiteBorder();
diff --git a/src/window_gui.h b/src/window_gui.h
index cf4ebcf73..7f7ab2667 100644
--- a/src/window_gui.h
+++ b/src/window_gui.h
@@ -833,39 +833,28 @@ public:
Window * operator*() const { return this->w; }
WindowIterator & operator++() { this->Next(); this->Validate(); return *this; }
+ bool IsEnd() const { return this->w == nullptr; }
+
private:
Window *w;
void Validate() { while (this->w != nullptr && this->w->window_class == WC_INVALID) this->Next(); }
void Next() { if (this->w != nullptr) this->w = Tfront ? this->w->z_back : this->w->z_front; }
};
+ using IteratorToFront = WindowIterator<false>; //!< Iterate in Z order towards front.
+ using IteratorToBack = WindowIterator<true>; //!< Iterate in Z order towards back.
/**
* Iterable ensemble of all valid Windows
* @tparam Tfront Wether we iterate from front
*/
template <bool Tfront>
- struct Iterate {
- Iterate(const Window *from) : from(from) {}
- WindowIterator<Tfront> begin() { return WindowIterator<Tfront>(this->from); }
+ struct AllWindows {
+ AllWindows() {}
+ WindowIterator<Tfront> begin() { return WindowIterator<Tfront>(Tfront ? _z_front_window : _z_back_window); }
WindowIterator<Tfront> end() { return WindowIterator<Tfront>(nullptr); }
- bool empty() { return this->begin() == this->end(); }
- private:
- const Window *from;
};
-
- /**
- * Returns an iterable ensemble of all valid Window from back to front
- * @param from index of the first Window to consider
- * @return an iterable ensemble of all valid Window
- */
- static Iterate<false> IterateFromBack(const Window *from = _z_back_window) { return Iterate<false>(from); }
-
- /**
- * Returns an iterable ensemble of all valid Window from front to back
- * @param from index of the first Window to consider
- * @return an iterable ensemble of all valid Window
- */
- static Iterate<true> IterateFromFront(const Window *from = _z_front_window) { return Iterate<true>(from); }
+ using IterateFromBack = AllWindows<false>; //!< Iterate all windows in Z order from back to front.
+ using IterateFromFront = AllWindows<true>; //!< Iterate all windows in Z order from front to back.
};
/**