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source: code/trunk/data/gui/scripts/SheetManager.lua @ 7579

Last change on this file since 7579 was 7403, checked in by dafrick, 14 years ago

Merged notifications branch back to trunk.

  • Property svn:eol-style set to native
File size: 6.5 KB
Line 
1-- SheetManager.lua
2
3local cursor = CEGUI.MouseCursor:getSingleton()
4local loadedSheets = {}
5local activeMenuSheets = {size = 0, topSheetTuple = nil}
6local menuSheetsRoot = guiMgr:getMenuRootWindow()
7
8-----------------------
9--- Local functions ---
10-----------------------
11
12local function hideCursor()
13    if cursor:isVisible() then
14        cursor:hide()
15    end
16end
17
18local function showCursor()
19    if not cursor:isVisible() and inputMgr:isMouseExclusive() then
20        cursor:show()
21    end
22end
23
24
25------------------------
26--- Global functions ---
27------------------------
28
29-- Loads the GUI with the specified name
30-- The name corresponds to the filename of the *.lua and *.layout files
31-- but without the extension
32function loadSheet(name)
33    -- Check if it has already been loaded
34    local sheet = loadedSheets[name]
35    if sheet == nil then
36        -- Load the sheet
37        sheet = require(name)
38        sheet:load()
39        loadedSheets[name] = sheet
40    end
41    return sheet
42end
43
44-- ?
45function showMenuSheet(name, bHidePrevious, bNoInput, ptr)
46    local sheet = showMenuSheet(name, bHidePrevious, bNoInput)
47    sheet.overlay = ptr
48    return sheet
49end
50
51-- Shows the specified menu sheet and loads it if neccessary
52function showMenuSheet(name, bHidePrevious, bNoInput)
53    if name == "" then
54        return nil
55    end
56    -- Get sheet (or load it)
57    local menuSheet = loadSheet(name)
58
59    -- Use sheet's value if nil was provided
60    if bHidePrevious == nil then
61        bHidePrevious = menuSheet.bHidePrevious
62        assert(bHidePrevious ~= nil)
63    end
64
65    -- Set bNoInput to false if it hasn't been set.
66    if bNoInput == nil then
67        bNoInput = false
68    end
69
70    -- Count the number of sheets that don't need input till the first that does.
71    local counter = noInputSheetCounter()
72    -- Pause game control if this is the first menu to be displayed
73    -- HUGE HACK?
74    if bNoInput == false and counter == 0 then
75        orxonox.HumanController:pauseControl()
76    end
77
78    -- Hide if already displayed (to make sure it is up front in the end)
79    if activeMenuSheets[name] ~= nil then
80        hideMenuSheet(name)
81    end
82
83    if bNoInput == true then
84        menuSheet.tShowCursor = TriBool.Dontcare
85    end
86
87    -- Add the sheet in a tuple of additional information
88    local sheetTuple =
89    {
90        ["sheet"]          = menuSheet,
91        ["bHidePrevious"]  = bHidePrevious,
92        ["bNoInput"]       = bNoInput
93    }
94    table.insert(activeMenuSheets, sheetTuple) -- indexed array access
95    activeMenuSheets[name] = sheetTuple -- name access
96    activeMenuSheets.size = activeMenuSheets.size + 1
97    activeMenuSheets.topSheetTuple = sheetTuple
98
99    -- Add sheet to the root window
100    menuSheetsRoot:addChildWindow(menuSheet.window)
101
102    -- Handle input distribution
103    if bNoInput == false then
104        inputMgr:enterState(menuSheet.inputState)
105    end
106
107    -- Only change cursor situation if menuSheet.tShowCursor ~= TriBool.Dontcare
108    if menuSheet.tShowCursor == TriBool.True then
109        showCursor()
110    elseif menuSheet.tShowCursor == TriBool.False then
111        hideCursor()
112    end
113
114    -- Hide all previous sheets if necessary
115    if bHidePrevious then
116        for i = 1, activeMenuSheets.size - 1 do
117            activeMenuSheets[i].sheet:hide()
118        end
119    end
120
121    menuSheet:show()
122
123    return menuSheet
124end
125
126function hideMenuSheet(name)
127    local sheetTuple = activeMenuSheets[name]
128    if sheetTuple == nil then
129        return
130    end
131
132    -- Hide the sheet
133    sheetTuple.sheet:hide()
134
135    -- Show sheets that were hidden by the sheet to be removed
136    local i = activeMenuSheets.size
137    -- Only do something if all sheets on top of sheetTuple
138    -- have bHidePrevious == true and sheetTuple.bHidePrevious == true
139    while i > 0 do
140        if activeMenuSheets[i].bHidePrevious then
141            if activeMenuSheets[i] == sheetTuple then
142                i = i - 1
143                while i > 0 do
144                    activeMenuSheets[i].sheet:show()
145                    if activeMenuSheets[i].bHidePrevious then
146                        break
147                    end
148                    i = i - 1
149                end
150            end
151            break
152        end
153        i = i - 1
154    end
155
156    -- Remove sheet with its tuple from the table
157    menuSheetsRoot:removeChildWindow(sheetTuple.sheet.window)
158    table.remove(activeMenuSheets, table.findIndex(activeMenuSheets, sheetTuple))
159    activeMenuSheets[name] = nil
160    activeMenuSheets.size = activeMenuSheets.size - 1
161    activeMenuSheets.topSheetTuple = activeMenuSheets[activeMenuSheets.size]
162
163    -- Leave the input state
164    if not sheetTuple.bNoInput then
165        inputMgr:leaveState(sheetTuple.sheet.inputState)
166    end
167   
168    -- CURSOR SHOWING
169    local i = activeMenuSheets.size
170    -- Find top most sheet that doesn't have tShowCusor == TriBool.Dontcare
171    while i > 0 and activeMenuSheets[i].sheet.tShowCursor == TriBool.Dontcare do
172        i = i - 1
173    end
174    if i > 0 and activeMenuSheets[i].sheet.tShowCursor == TriBool.True then
175        showCursor()
176    else
177        hideCursor()
178    end
179
180    -- Count the number of sheets that don't need input till the first that does.
181    local counter = noInputSheetCounter()
182    -- Resume control if the last (non-noInput) menu is hidden
183    if counter == 0 then
184        orxonox.HumanController:resumeControl()
185        hideCursor()
186    end
187
188    sheetTuple.sheet:afterHide()
189end
190
191-- Hides all menu GUI sheets
192function hideAllMenuSheets()
193    while activeMenuSheets.size ~= 0 do
194        hideMenuSheet(activeMenuSheets.topSheetTuple.sheet.name)
195    end
196end
197
198function keyESC()
199    -- HUGE, very HUGE hacks!
200
201    -- Count the number of sheets that don't need input till the first that does.
202    local counter = noInputSheetCounter()
203
204    -- If the first sheet that needs input is the MainMenu.
205    if counter == 1 and activeMenuSheets[1].sheet.name == "MainMenu" then
206        orxonox.execute("exit")
207    -- If there is at least one sheet that needs input.
208    elseif counter > 0 then
209        orxonox.execute("hideGUI "..activeMenuSheets[counter].sheet.name)
210    else
211        showMenuSheet("InGameMenu")
212    end
213end
214
215function setBackgroundImage(imageSet, imageName)
216    guiMgr:setBackgroundImage(imageSet, imageName)
217end
218
219function noInputSheetCounter()
220    -- Count the number of sheets that don't need input till the first that does.
221    local counter = activeMenuSheets.size
222    while counter > 0 and activeMenuSheets[counter].bNoInput do
223        counter = counter - 1
224    end
225    return counter
226end
227
228----------------------
229--- Initialisation ---
230----------------------
231
232hideCursor()
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