2 CLASS(ModalController) EXTENDS(Container)
3 METHOD(ModalController, resizeNotify, void(entity, vector, vector, vector, vector))
4 METHOD(ModalController, draw, void(entity))
5 METHOD(ModalController, showChild, void(entity, entity, vector, vector, float))
6 METHOD(ModalController, hideChild, void(entity, entity, float))
7 METHOD(ModalController, hideAll, void(entity, float))
8 METHOD(ModalController, addItem, void(entity, entity, vector, vector, float))
9 METHOD(ModalController, addTab, void(entity, entity, entity))
11 METHOD(ModalController, initializeDialog, void(entity, entity))
13 METHOD(ModalController, switchState, void(entity, entity, float, float))
14 ATTRIB(ModalController, origin, vector, '0 0 0')
15 ATTRIB(ModalController, size, vector, '0 0 0')
16 ATTRIB(ModalController, previousButton, entity, NULL)
17 ATTRIB(ModalController, fadedAlpha, float, 0.3)
18 ENDCLASS(ModalController)
20 .entity tabSelectingButton;
23 void TabButton_Click(entity button, entity tab); // assumes a button has set the above fields to its own absolute origin, its size, and the tab to activate
24 void DialogOpenButton_Click(entity button, entity tab); // assumes a button has set the above fields to its own absolute origin, its size, and the tab to activate
25 void DialogOpenButton_Click_withCoords(entity button, entity tab, vector theOrigin, vector theSize);
26 void DialogCloseButton_Click(entity button, entity tab); // assumes a button has set the above fields to the tab to close
31 // modal dialog controller
32 // handles a stack of dialog elements
33 // each element can have one of the following states:
34 // 0: hidden (fading out)
35 // 1: visible (zooming in)
36 // 2: greyed out (inactive)
37 // While an animation is running, no item has focus. When an animation is done,
38 // the topmost item gets focus.
39 // The items are assumed to be added in overlapping order, that is, the lowest
40 // window must get added first.
43 // - to control a modal dialog:
44 // - show modal dialog: me.showChild(me, childItem, buttonAbsOrigin, buttonAbsSize, 0) // childItem also gets focus
45 // - dismiss modal dialog: me.hideChild(me, childItem, 0) // childItem fades out and relinquishes focus
46 // - show first screen in m_show: me.hideAll(me, 1); me.showChild(me, me.firstChild, '0 0 0', '0 0 0', 1);
47 // - to show a temporary dialog instead of the menu (teamselect): me.hideAll(me, 1); me.showChild(me, teamSelectDialog, '0 0 0', '0 0 0', 1);
48 // - as a tabbed dialog control:
49 // - to initialize: me.hideAll(me, 1); me.showChild(me, me.firstChild, '0 0 0', '0 0 0', 1);
50 // - to show a tab: me.hideChild(me, currentTab, 0); me.showChild(me, newTab, buttonAbsOrigin, buttonAbsSize, 0);
52 .vector ModalController_initialSize;
53 .vector ModalController_initialOrigin;
54 .vector ModalController_initialFontScale;
55 .float ModalController_initialAlpha;
56 .vector ModalController_buttonSize;
57 .vector ModalController_buttonOrigin;
58 .float ModalController_state;
59 .float ModalController_factor;
60 .entity ModalController_controllingButton;
62 void ModalController_initializeDialog(entity me, entity root)
65 me.showChild(me, root, '0 0 0', '0 0 0', 1); // someone else animates for us
68 void TabButton_Click(entity button, entity tab)
70 if(tab.ModalController_state == 1)
72 tab.parent.hideAll(tab.parent, 0);
73 button.forcePressed = 1;
74 tab.ModalController_controllingButton = button;
75 tab.parent.showChild(tab.parent, tab, button.origin, button.size, 0);
78 void DialogOpenButton_Click(entity button, entity tab)
80 DialogOpenButton_Click_withCoords(button, tab, button.origin, button.size);
83 void DialogOpenButton_Click_withCoords(entity button, entity tab, vector theOrigin, vector theSize)
85 if(tab.ModalController_state)
88 button.forcePressed = 1;
89 if(tab.parent.focusedChild)
90 tab.parent.focusedChild.saveFocus(tab.parent.focusedChild);
91 tab.ModalController_controllingButton = button;
92 tab.parent.showChild(tab.parent, tab, theOrigin, theSize, 0);
95 void DialogCloseButton_Click(entity button, entity tab)
97 tab.parent.hideChild(tab.parent, tab, 0);
100 void ModalController_resizeNotify(entity me, vector relOrigin, vector relSize, vector absOrigin, vector absSize)
102 me.resizeNotifyLie(me, relOrigin, relSize, absOrigin, absSize, ModalController_initialOrigin, ModalController_initialSize, ModalController_initialFontScale);
105 void ModalController_switchState(entity me, entity other, float state, float skipAnimation)
108 previousState = other.ModalController_state;
109 if(state == previousState && !skipAnimation)
111 other.ModalController_state = state;
115 other.ModalController_factor = 1 - other.Container_alpha / other.ModalController_initialAlpha;
119 other.ModalController_factor = other.Container_alpha / other.ModalController_initialAlpha;
120 if(previousState == 0 && !skipAnimation)
122 other.Container_origin = other.ModalController_buttonOrigin;
123 other.Container_size = other.ModalController_buttonSize;
128 other.ModalController_factor = bound(0, (1 - other.Container_alpha / other.ModalController_initialAlpha) / me.fadedAlpha, 1);
129 // fading out halfway
133 other.ModalController_factor = 1;
136 void ModalController_draw(entity me)
141 float f; // animation factor
142 float df; // animation step size
143 float prevFactor, targetFactor;
144 vector targetOrigin, targetSize; float targetAlpha;
149 for(e = me.firstChild; e; e = e.nextSibling)
150 if(e.ModalController_state)
153 me.switchState(me, front, 2, 0);
157 me.switchState(me, front, 1, 0);
159 df = frametime * 3; // animation speed
161 for(e = me.firstChild; e; e = e.nextSibling)
163 if(e.ModalController_state == 2)
165 // fading out partially
166 targetOrigin = e.Container_origin; // stay as is
167 targetSize = e.Container_size; // stay as is
168 targetAlpha = me.fadedAlpha * e.ModalController_initialAlpha;
170 else if(e.ModalController_state == 1)
173 targetOrigin = e.ModalController_initialOrigin;
174 targetSize = e.ModalController_initialSize;
175 targetAlpha = e.ModalController_initialAlpha;
180 targetOrigin = e.Container_origin; // stay as is
181 targetSize = e.Container_size; // stay as is
185 f = (e.ModalController_factor = min(1, e.ModalController_factor + df));
190 e.Container_origin = targetOrigin;
191 e.Container_size = targetSize;
192 me.setAlphaOf(me, e, targetAlpha);
196 prevFactor = (1 - f) / (1 - f + df);
197 if(!e.ModalController_state) // optimize code and avoid precision errors
198 me.setAlphaOf(me, e, e.Container_alpha * prevFactor);
202 targetFactor = df / (1 - f + df);
204 if(e.ModalController_state == 1)
206 e.Container_origin = e.Container_origin * prevFactor + targetOrigin * targetFactor;
207 e.Container_size = e.Container_size * prevFactor + targetSize * targetFactor;
209 me.setAlphaOf(me, e, e.Container_alpha * prevFactor + targetAlpha * targetFactor);
212 // assume: o == to * f_prev + X * (1 - f_prev)
213 // make: o' = to * f + X * (1 - f)
215 // X == (o - to * f_prev) / (1 - f_prev)
216 // o' = to * f + (o - to * f_prev) / (1 - f_prev) * (1 - f)
218 // o' = (to * (f - f_prev) + o * (1 - f)) / (1 - f_prev)
220 if(e.ModalController_state == 1)
222 fs = globalToBoxSize(e.Container_size, e.ModalController_initialSize);
223 e.Container_fontscale_x = fs.x * e.ModalController_initialFontScale.x;
224 e.Container_fontscale_y = fs.y * e.ModalController_initialFontScale.y;
228 if(animating || !me.focused)
229 me.setFocus(me, NULL);
231 me.setFocus(me, front);
232 SUPER(ModalController).draw(me);
235 void ModalController_addTab(entity me, entity other, entity tabButton)
237 me.addItem(me, other, '0 0 0', '1 1 1', 1);
238 tabButton.onClick = TabButton_Click;
239 tabButton.onClickEntity = other;
240 other.tabSelectingButton = tabButton;
241 if(other == me.firstChild)
243 tabButton.forcePressed = 1;
244 other.ModalController_controllingButton = tabButton;
245 me.showChild(me, other, '0 0 0', '0 0 0', 1);
249 void ModalController_addItem(entity me, entity other, vector theOrigin, vector theSize, float theAlpha)
251 SUPER(ModalController).addItem(me, other, theOrigin, theSize, (other == me.firstChild) ? theAlpha : 0);
252 other.ModalController_initialFontScale = other.Container_fontscale;
253 other.ModalController_initialSize = other.Container_size;
254 other.ModalController_initialOrigin = other.Container_origin;
255 other.ModalController_initialAlpha = theAlpha; // hope Container never modifies this
256 if(other.ModalController_initialFontScale == '0 0 0')
257 other.ModalController_initialFontScale = '1 1 0';
260 void ModalController_showChild(entity me, entity other, vector theOrigin, vector theSize, float skipAnimation)
262 if(other.ModalController_state == 0 || skipAnimation)
264 me.setFocus(me, NULL);
267 other.ModalController_buttonOrigin = globalToBox(theOrigin, me.origin, me.size);
268 other.ModalController_buttonSize = globalToBoxSize(theSize, me.size);
270 me.switchState(me, other, 1, skipAnimation);
271 } // zoom in from button (factor increases)
274 void ModalController_hideAll(entity me, float skipAnimation)
277 for(e = me.firstChild; e; e = e.nextSibling)
278 me.hideChild(me, e, skipAnimation);
281 void ModalController_hideChild(entity me, entity other, float skipAnimation)
283 if(other.ModalController_state || skipAnimation)
285 me.setFocus(me, NULL);
286 me.switchState(me, other, 0, skipAnimation);
287 if(other.ModalController_controllingButton)
289 other.ModalController_controllingButton.forcePressed = 0;
290 other.ModalController_controllingButton = NULL;
292 } // just alpha fade out (factor increases and decreases alpha)