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Implemented modal windows behavior in SDL.

This commit is contained in:
and3md 2017-03-30 20:33:04 +02:00
parent e4d156cfae
commit 2677025486
1 changed files with 120 additions and 13 deletions
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117
src/dlangui/platforms/sdl/sdlapp.d
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@ -79,18 +79,37 @@ class SDLWindow : Window {
SDLPlatform _platform;
SDL_Window * _win;
SDL_Renderer* _renderer;
SDLWindow[] _children;
SDLWindow _parent;
this(SDLPlatform platform, dstring caption, Window parent, uint flags, uint width = 0, uint height = 0) {
_platform = platform;
_caption = caption;
_parent = cast(SDLWindow) parent;
if (_parent)
_parent._children~=this;
debug Log.d("Creating SDL window");
_dx = width;
_dy = height;
create(flags);
_children.reserve(20);
Log.i(_enableOpengl ? "OpenGL is enabled" : "OpenGL is disabled");
}
~this() {
debug Log.d("Destroying SDL window");
if (_parent) {
long index = countUntil(_parent._children,this);
if (index > -1 ) {
_parent._children=_parent._children.remove(index);
}
_parent = null;
}
if (_renderer)
SDL_DestroyRenderer(_renderer);
static if (ENABLE_OPENGL) {
@ -104,6 +123,63 @@ class SDLWindow : Window {
}
bool hasModalChild() {
foreach (SDLWindow w;_children) {
if (w.flags & WindowFlag.Modal)
return true;
if (w.hasModalChild())
return true;
}
return false;
}
void restoreModalChilds() {
foreach (SDLWindow w;_children) {
if (w.flags & WindowFlag.Modal) {
w.show();
}
w.restoreModalChilds();
}
}
void minimizeModalChilds() {
foreach (SDLWindow w;_children) {
if (w.flags & WindowFlag.Modal)
{
w.minimizeWindow();
}
w.minimizeModalChilds();
}
}
void restoreParentWindows() {
SDLWindow[] tempWin;
if (!_platform)
return;
_platform._parentWindowRestoration = true;
scope(exit) {_platform._parentWindowRestoration = false;}
SDLWindow w = this;
while (true) {
if (w is null)
break;
tempWin~=w;
w = w._parent;
}
for (size_t i = tempWin.length ; i-- > 0 ; ) {
tempWin[i].show();
}
}
/// post event to handle in UI thread (this method can be used from background thread)
override void postEvent(CustomEvent event) {
super.postEvent(event);
@ -1058,11 +1134,22 @@ class SDLPlatform : Platform {
return res;
}
override bool hasModalWindowsAbove(Window w) {
SDLWindow sdlWin = cast (SDLWindow) w;
if (sdlWin) {
return sdlWin.hasModalChild();
}
return false;
}
//void redrawWindows() {
// foreach(w; _windowMap)
// w.redraw();
//}
private bool _parentWindowRestoration = false;
override int enterMessageLoop() {
Log.i("entering message loop");
SDL_Event event;
@ -1114,6 +1201,7 @@ class SDLPlatform : Platform {
w.redraw();
break;
case SDL_WINDOWEVENT_CLOSE:
if (!w.hasModalChild()) {
if (w.handleCanClose()) {
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_CLOSE win=", event.window.windowID);
_windowMap.remove(windowID);
@ -1121,30 +1209,43 @@ class SDLPlatform : Platform {
} else {
skipNextQuit = true;
}
}
break;
case SDL_WINDOWEVENT_SHOWN:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_SHOWN");
if (w.hasModalChild())
w.restoreModalChilds();
break;
case SDL_WINDOWEVENT_HIDDEN:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_HIDDEN");
break;
case SDL_WINDOWEVENT_EXPOSED:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_EXPOSED");
if (w.hasModalChild())
w.restoreModalChilds();
version(linux) {
w.invalidate();
}
break;
case SDL_WINDOWEVENT_MOVED:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_MOVED");
if (w.hasModalChild())
w.restoreModalChilds();
break;
case SDL_WINDOWEVENT_MINIMIZED:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_MINIMIZED");
if (w.hasModalChild())
w.minimizeModalChilds();
break;
case SDL_WINDOWEVENT_MAXIMIZED:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_MAXIMIZED");
break;
case SDL_WINDOWEVENT_RESTORED:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_RESTORED");
if (!_parentWindowRestoration && w.flags & WindowFlag.Modal)
w.restoreParentWindows();
if (!_parentWindowRestoration && w.hasModalChild())
w.restoreModalChilds();
version(linux) { //not sure if needed on Windows or OSX. Also need to check on FreeBSD
w.invalidate();
}
@ -1168,7 +1269,7 @@ class SDLPlatform : Platform {
}
case SDL_KEYDOWN:
SDLWindow w = getWindow(event.key.windowID);
if (w) {
if (w && !w.hasModalChild()) {
w.processKeyEvent(KeyAction.KeyDown, event.key.keysym.sym, event.key.keysym.mod);
SDL_StartTextInput();
}
@ -1176,6 +1277,9 @@ class SDLPlatform : Platform {
case SDL_KEYUP:
SDLWindow w = getWindow(event.key.windowID);
if (w) {
if (w.hasModalChild())
w.restoreModalChilds();
else
w.processKeyEvent(KeyAction.KeyUp, event.key.keysym.sym, event.key.keysym.mod);
}
break;
@ -1185,31 +1289,34 @@ class SDLPlatform : Platform {
case SDL_TEXTINPUT:
debug(DebugSDL) Log.d("SDL_TEXTINPUT");
SDLWindow w = getWindow(event.text.windowID);
if (w) {
if (w && !w.hasModalChild()) {
w.processTextInput(event.text.text.ptr);
}
break;
case SDL_MOUSEMOTION:
SDLWindow w = getWindow(event.motion.windowID);
if (w) {
if (w && !w.hasModalChild()) {
w.processMouseEvent(MouseAction.Move, 0, event.motion.state, event.motion.x, event.motion.y);
}
break;
case SDL_MOUSEBUTTONDOWN:
SDLWindow w = getWindow(event.button.windowID);
if (w) {
if (w && !w.hasModalChild()) {
w.processMouseEvent(MouseAction.ButtonDown, event.button.button, event.button.state, event.button.x, event.button.y);
}
break;
case SDL_MOUSEBUTTONUP:
SDLWindow w = getWindow(event.button.windowID);
if (w) {
if (w.hasModalChild())
w.restoreModalChilds();
else
w.processMouseEvent(MouseAction.ButtonUp, event.button.button, event.button.state, event.button.x, event.button.y);
}
break;
case SDL_MOUSEWHEEL:
SDLWindow w = getWindow(event.wheel.windowID);
if (w) {
if (w && !w.hasModalChild()) {
debug(DebugSDL) Log.d("SDL_MOUSEWHEEL x=", event.wheel.x, " y=", event.wheel.y);
w.processMouseEvent(MouseAction.Wheel, 0, 0, event.wheel.x, event.wheel.y);
}