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Merge pull request #340 from and3md/sdl_modal_behavior 

SDL modal behavior and setting window state.
This commit is contained in:
Vadim Lopatin 2017-05-02 11:24:26 +03:00 committed by GitHub
parent e4d156cfae 14c99be69c
commit 43e2d8bdab
1 changed files with 184 additions and 28 deletions
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212
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) {
ptrdiff_t 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) {
@ -103,6 +122,83 @@ class SDLWindow : Window {
destroy(_drawbuf);
}
private bool hasModalChild() {
foreach (SDLWindow w;_children) {
if (w.flags & WindowFlag.Modal)
return true;
if (w.hasModalChild())
return true;
}
return false;
}
private void restoreModalChilds() {
foreach (SDLWindow w;_children) {
if (w.flags & WindowFlag.Modal) {
if (w._windowState == WindowState.maximized)
w.activateWindow();
else
w.restoreWindow(true);
}
w.restoreModalChilds();
}
}
private void minimizeModalChilds() {
foreach (SDLWindow w;_children) {
if (w.flags & WindowFlag.Modal)
{
w.minimizeWindow();
}
w.minimizeModalChilds();
}
}
private void restoreParentWindows() {
SDLWindow[] tempWin;
if (!_platform)
return;
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].restoreWindow(true);
}
private void minimizeParentWindows() {
SDLWindow[] tempWin;
if (!_platform)
return;
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].minimizeWindow();
}
/// post event to handle in UI thread (this method can be used from background thread)
override void postEvent(CustomEvent event) {
@ -243,7 +339,7 @@ class SDLWindow : Window {
}
override void show() {
Log.d("SDLWindow.show()");
Log.d("SDLWindow.show() - ", windowCaption);
if (_mainWidget && !(_flags & WindowFlag.Resizable)) {
_mainWidget.measure(SIZE_UNSPECIFIED, SIZE_UNSPECIFIED);
SDL_SetWindowSize(_win, _mainWidget.measuredWidth, _mainWidget.measuredHeight);
@ -271,27 +367,35 @@ class SDLWindow : Window {
return false;
bool res = false;
bool stateChanged = false;
// change state
switch(newState) {
case WindowState.maximized:
if (_windowState != WindowState.maximized)
if (_windowState != WindowState.maximized) {
SDL_MaximizeWindow(_win);
stateChanged = true;
}
res = true;
break;
case WindowState.minimized:
if (_windowState != WindowState.minimized)
if (_windowState != WindowState.minimized) {
SDL_MinimizeWindow(_win);
stateChanged = true;
}
res = true;
break;
case WindowState.hidden:
if (_windowState != WindowState.hidden)
if (_windowState != WindowState.hidden) {
SDL_HideWindow(_win);
stateChanged = true;
}
res = true;
break;
case WindowState.normal:
if (_windowState != WindowState.normal) {
SDL_RestoreWindow(_win);
stateChanged = true;
}
res = true;
break;
@ -299,18 +403,23 @@ class SDLWindow : Window {
break;
}
// change size and/or position
bool windowRectChanged = false;
if (newWindowRect != RECT_VALUE_IS_NOT_SET && (newState == WindowState.normal || newState == WindowState.unspecified)) {
// change position
if (newWindowRect.top != int.min && newWindowRect.left != int.min) {
SDL_SetWindowPosition(_win, newWindowRect.left, newWindowRect.top);
res = true;
windowRectChanged = true;
}
// change size
if (newWindowRect.bottom != int.min && newWindowRect.right != int.min) {
SDL_SetWindowSize(_win, newWindowRect.right, newWindowRect.bottom);
res = true;
windowRectChanged = true;
}
}
@ -319,6 +428,8 @@ class SDLWindow : Window {
res = true;
}
handleWindowStateChange(stateChanged ? newState : WindowState.unspecified, windowRectChanged ? newWindowRect : RECT_VALUE_IS_NOT_SET);
return res;
}
@ -1057,11 +1168,22 @@ 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 _windowsMinimized = false;
override int enterMessageLoop() {
Log.i("entering message loop");
@ -1114,52 +1236,80 @@ class SDLPlatform : Platform {
w.redraw();
break;
case SDL_WINDOWEVENT_CLOSE:
if (w.handleCanClose()) {
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_CLOSE win=", event.window.windowID);
_windowMap.remove(windowID);
destroy(w);
} else {
skipNextQuit = true;
if (!w.hasModalChild()) {
if (w.handleCanClose()) {
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_CLOSE win=", event.window.windowID);
_windowMap.remove(windowID);
destroy(w);
} else {
skipNextQuit = true;
}
}
break;
case SDL_WINDOWEVENT_SHOWN:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_SHOWN");
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_SHOWN - ", w.windowCaption);
if (!_windowsMinimized && w.hasModalChild())
w.restoreModalChilds();
break;
case SDL_WINDOWEVENT_HIDDEN:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_HIDDEN");
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_HIDDEN - ", w.windowCaption);
break;
case SDL_WINDOWEVENT_EXPOSED:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_EXPOSED");
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_EXPOSED - ", w.windowCaption);
if (!_windowsMinimized && w.hasModalChild())
w.restoreModalChilds();
version(linux) {
w.invalidate();
}
break;
case SDL_WINDOWEVENT_MOVED:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_MOVED");
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_MOVED- ", w.windowCaption);
if (!_windowsMinimized && w.hasModalChild())
w.restoreModalChilds();
break;
case SDL_WINDOWEVENT_MINIMIZED:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_MINIMIZED");
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_MINIMIZED - ", w.windowCaption);
w.handleWindowStateChange(WindowState.minimized);
if (!_windowsMinimized && w.hasModalChild())
w.minimizeModalChilds();
if (!_windowsMinimized && w.flags & WindowFlag.Modal)
w.minimizeParentWindows();
_windowsMinimized = true;
break;
case SDL_WINDOWEVENT_MAXIMIZED:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_MAXIMIZED");
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_MAXIMIZED - ", w.windowCaption);
w.handleWindowStateChange(WindowState.maximized);
_windowsMinimized = false;
break;
case SDL_WINDOWEVENT_RESTORED:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_RESTORED");
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_RESTORED - ", w.windowCaption);
_windowsMinimized = false;
if (w.flags & WindowFlag.Modal) {
w.restoreParentWindows();
w.restoreWindow(true);
}
w.handleWindowStateChange(WindowState.normal);
if (w.hasModalChild())
w.restoreModalChilds();
version(linux) { //not sure if needed on Windows or OSX. Also need to check on FreeBSD
w.invalidate();
}
break;
case SDL_WINDOWEVENT_ENTER:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_ENTER");
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_ENTER - ", w.windowCaption);
break;
case SDL_WINDOWEVENT_LEAVE:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_LEAVE");
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_LEAVE - ", w.windowCaption);
break;
case SDL_WINDOWEVENT_FOCUS_GAINED:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_FOCUS_GAINED");
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_FOCUS_GAINED - ", w.windowCaption);
if (!_windowsMinimized)
w.restoreModalChilds();
break;
case SDL_WINDOWEVENT_FOCUS_LOST:
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_FOCUS_LOST");
debug(DebugSDL) Log.d("SDL_WINDOWEVENT_FOCUS_LOST - ", w.windowCaption);
break;
default:
break;
@ -1168,7 +1318,7 @@ 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();
}
@ -1176,7 +1326,10 @@ class SDLPlatform : Platform {
case SDL_KEYUP:
SDLWindow w = getWindow(event.key.windowID);
if (w) {
w.processKeyEvent(KeyAction.KeyUp, event.key.keysym.sym, event.key.keysym.mod);
if (w.hasModalChild())
w.restoreModalChilds();
else
w.processKeyEvent(KeyAction.KeyUp, event.key.keysym.sym, event.key.keysym.mod);
}
break;
case SDL_TEXTEDITING:
@ -1185,31 +1338,34 @@ 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) {
w.processMouseEvent(MouseAction.ButtonUp, event.button.button, event.button.state, event.button.x, event.button.y);
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);
}