Update the widget animation callback to use widgetReposition as opposed to setting the position directly.
git-svn-id: svn+ssh://svn.gna.org/svn/warzone/trunk@5932 4a71c877-e1ca-e34f-864e-861f7616d084master
Freddie Witherden
parent
906f766b8a
commit
04e2f5f82b
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@ -240,10 +240,16 @@ static bool widgetAnimationTimerCallback(widget *self, const event *evt,
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switch (i)
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{
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case ANI_TYPE_TRANSLATE:
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// Update the widgets position
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self->offset = widgetAnimationInterpolateTranslate(self, k1,
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k2, time);
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{
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// Get the new position
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point pos = widgetAnimationInterpolateTranslate(self, k1,
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k2, time);
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// Set the new position
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widgetReposition(self, pos.x, pos.y);
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break;
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}
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case ANI_TYPE_ROTATE:
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// Update the widgets rotation
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self->rotate = widgetAnimationInterpolateRotate(self, k1,
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@ -44,6 +44,7 @@ static void windowInitVtbl(window *self)
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vtbl.widgetVtbl.addChild = windowAddChildImpl;
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vtbl.widgetVtbl.doLayout = windowDoLayoutImpl;
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vtbl.widgetVtbl.doDraw = windowDoDrawImpl;
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vtbl.widgetVtbl.resize = windowResizeImpl;
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vtbl.widgetVtbl.getMinSize = windowGetMinSizeImpl;
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vtbl.widgetVtbl.getMaxSize = windowGetMaxSizeImpl;
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@ -77,6 +78,11 @@ void windowInit(window *self, const char *id, int w, int h)
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// Set our size to (w,h)
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widgetResize(WIDGET(self), w, h);
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// Default anchor state is static (as opposed to dynamic)
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self->anchorState = ANCHOR_STATIC;
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self->anchorWindow = NULL;
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self->anchorRepositionId = self->anchorResizeId = -1;
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}
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void windowDestroyImpl(widget *self)
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@ -240,9 +246,36 @@ void windowRepositionFromScreen(window *self, hAlign hAlign, int xOffset,
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widgetReposition(WIDGET(self), x, y);
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}
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void windowRepositionFromAnchor(window *self, const window *anchor,
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hAlign hAlign, int xOffset,
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vAlign vAlign, int yOffset)
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void windowSetAnchorState(window *self, anchorState state)
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{
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// If the anchor is being disabled, remove any active event handlers
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if (state == ANCHOR_STATIC && self->anchorWindow)
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{
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widget *anchorWidget = WIDGET(self->anchorWindow);
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// Remove the reposition event handler
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if (widgetIsEventHandler(anchorWidget, self->anchorRepositionId))
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{
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widgetRemoveEventHandler(anchorWidget, self->anchorRepositionId);
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}
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// Remove the resize event handler
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if (widgetIsEventHandler(anchorWidget, self->anchorResizeId))
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{
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widgetRemoveEventHandler(anchorWidget, self->anchorResizeId);
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}
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// We no longer have an anchor window
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self->anchorWindow = NULL;
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}
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// Update the state
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self->anchorState = state;
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}
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static void windowDoRepositionFromAnchor(window *self, const window *anchor,
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hAlign hAlign, int xOffset,
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vAlign vAlign, int yOffset)
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{
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int x = 0, y = 0;
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size anchorSize = WIDGET(anchor)->size;
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@ -285,3 +318,109 @@ void windowRepositionFromAnchor(window *self, const window *anchor,
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// Reposition
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widgetReposition(WIDGET(self), x, y);
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}
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void windowResizeImpl(widget *self, int w, int h)
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{
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window *windowSelf = WINDOW(self);
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// Call our parents resize method
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widgetResizeImpl(self, w, h);
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// If dynamic anchoring is enabled, reposition ourself
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if (windowSelf->anchorState == ANCHOR_DYNAMIC && windowSelf->anchorWindow)
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{
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windowDoRepositionFromAnchor(windowSelf, windowSelf->anchorWindow,
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windowSelf->anchorHAlign,
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windowSelf->anchorXOffset,
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windowSelf->anchorVAlign,
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windowSelf->anchorYOffset);
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}
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}
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static bool windowAnchorCallback(widget *self, const event *evt, int handlerId,
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void *userData)
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{
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// The window to be repositioned is stored in userData
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window *anchoredWindow = WINDOW(userData);
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// We should only be called to respond to resize and reposition eventd
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assert(evt->type == EVT_REPOSITION || evt->type == EVT_RESIZE);
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// Call windowDoRepositionFromAnchor to update the position
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windowDoRepositionFromAnchor(anchoredWindow, WINDOW(self),
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anchoredWindow->anchorHAlign,
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anchoredWindow->anchorXOffset,
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anchoredWindow->anchorVAlign,
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anchoredWindow->anchorYOffset);
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return true;
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}
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static bool windowAnchorDestroyCallback(widget *self, const event *evt,
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int handlerId, void *userData)
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{
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// The window that installed us is in userData
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window *anchoredWindow = WINDOW(userData);
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// Make sure the event is a destruct event
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assert(evt->type == EVT_DESTRUCT);
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// We are being removed and therefore are no longer anchored
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anchoredWindow->anchorWindow = NULL;
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anchoredWindow->anchorRepositionId = anchoredWindow->anchorResizeId = -1;
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return true;
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}
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void windowRepositionFromAnchor(window *self, const window *anchor,
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hAlign hAlign, int xOffset,
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vAlign vAlign, int yOffset)
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{
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// If dynamic anchors are enabled, set up dynamic anchoring
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if (self->anchorState == ANCHOR_DYNAMIC)
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{
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// Get the current anchor (so that we may remove the event handlers)
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widget *anchorWidget = WIDGET(self->anchorWindow);
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if (anchorWidget)
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{
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// Remove any current event handlers we've installed
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if (widgetIsEventHandler(anchorWidget, self->anchorRepositionId))
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{
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widgetRemoveEventHandler(anchorWidget, self->anchorRepositionId);
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}
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if (widgetIsEventHandler(anchorWidget, self->anchorResizeId))
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{
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widgetRemoveEventHandler(anchorWidget, self->anchorResizeId);
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}
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}
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// Save the window/alignment/offsets
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self->anchorWindow = self;
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self->anchorHAlign = hAlign;
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self->anchorXOffset = xOffset;
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self->anchorVAlign = vAlign;
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self->anchorYOffset = yOffset;
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/*
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* Install the event handlers, which are required to track changes to
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* the size and position of the anchor window.
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*
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* Here we make the assumption that the event handlers when removed,
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* will be done so in pairs (and therefore only need to install a single
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* destructor). The same callback is used for both resize and reposition
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* events.
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*/
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self->anchorRepositionId = widgetAddEventHandler(WIDGET(anchor), EVT_REPOSITION,
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windowAnchorCallback,
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NULL, self);
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self->anchorResizeId = widgetAddEventHandler(WIDGET(anchor), EVT_RESIZE,
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windowAnchorCallback,
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windowAnchorDestroyCallback,
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self);
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}
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// Reposition the window
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windowDoRepositionFromAnchor(self, anchor, hAlign, xOffset, vAlign, yOffset);
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}
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@ -29,6 +29,18 @@
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typedef struct _window window;
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typedef struct _windowVtbl windowVtbl;
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/**
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* The possible ways in which windowRepositionFromAnchor can act
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*/
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typedef enum
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{
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/// The window does not track changes in the anchor windows
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ANCHOR_STATIC,
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/// The window tracks and updates to changes in the anchor window
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ANCHOR_DYNAMIC
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} anchorState;
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struct _windowVtbl
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{
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widgetVtbl widgetVtbl;
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@ -47,6 +59,42 @@ struct _window
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* Our vtable
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*/
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windowVtbl *vtbl;
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/**
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* Current anchor state
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*/
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anchorState anchorState;
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/**
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* Anchor window
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*/
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window *anchorWindow;
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/**
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* Anchor horizontal alignment
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*/
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hAlign anchorHAlign;
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/**
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* Anchor horizontal offset
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*/
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int anchorXOffset;
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/**
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* Anchor vertical alignment
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*/
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vAlign anchorVAlign;
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/**
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* Anchor vertical offset
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*/
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int anchorYOffset;
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/**
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* Event handler IDs for anchor events
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*/
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int anchorRepositionId;
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int anchorResizeId;
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};
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/*
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@ -68,6 +116,7 @@ void windowDestroyImpl(widget *self);
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bool windowDoLayoutImpl(widget *self);
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void windowDoDrawImpl(widget *self);
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bool windowAddChildImpl(widget *self, widget *child);
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void windowResizeImpl(widget *self, int w, int h);
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size windowGetMinSizeImpl(widget *self);
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size windowGetMaxSizeImpl(widget *self);
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@ -130,6 +179,23 @@ void windowSetScreenSize(int w, int h);
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void windowRepositionFromScreen(window *self, hAlign hAlign, int xOffset,
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vAlign vAlign, int yOffset);
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/**
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* Sets the behaviour of windowRepositionFromAchor (with the default being
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* ANCHOR_STATIC) to state. If the state is the same as the current anchor state
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* then this method is a no-op.
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*
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* It is important to note that:
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* - setting the state to ANCHOR_STATIC will break the current anchor (if any);
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* - a state of ANCHOR_DYNAMIC will only take effect after the next call to
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* windowRepositionFromAnchor;
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* - calling widgetReposition with an anchor state of ANCHOR_DYNAMIC will cause
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* strange behaviour - the anchor should be set to ANCHOR_STATIC first.
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*
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* @param self The window to set the anchor state for.
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* @param state The new state to set the anchor behaviour to.
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*/
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void windowSetAnchorState(window *self, anchorState state);
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/**
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* Positions the window relative to the position of another window, anchor.
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*
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