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GUIOverlay.cpp
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GUIOverlay.cpp
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/*
* Copyright (C) 2012 Me and My Shadow
*
* This file is part of Me and My Shadow.
*
* Me and My Shadow is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Me and My Shadow is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Me and My Shadow. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Functions.h"
#include "GameState.h"
#include "Globals.h"
#include "Objects.h"
#include "GUIOverlay.h"
#include "StatisticsManager.h"
using namespace std;
GUIOverlay::GUIOverlay(GUIObject* root,bool dim):root(root),dim(dim){
//First keep the pointer to the current GUIObjectRoot and currentState.
parentState=currentState;
tempGUIObjectRoot=GUIObjectRoot;
//Now set the GUIObject root to the new root.
currentState=this;
GUIObjectRoot=root;
//Dim the background.
if(dim){
SDL_FillRect(tempSurface,NULL,0);
SDL_SetAlpha(tempSurface,SDL_SRCALPHA,155);
SDL_BlitSurface(tempSurface,NULL,screen,NULL);
}
}
GUIOverlay::~GUIOverlay(){
//We need to place everything back.
currentState=parentState;
parentState=NULL;
//Delete the GUI if present.
if(GUIObjectRoot)
delete GUIObjectRoot;
//Now put back the parent gui.
GUIObjectRoot=tempGUIObjectRoot;
tempGUIObjectRoot=NULL;
}
void GUIOverlay::enterLoop(bool skip){
while(GUIObjectRoot){
while(SDL_PollEvent(&event)){
//Check for a resize event.
if(event.type==SDL_VIDEORESIZE){
onVideoResize();
continue;
}
GUIObjectHandleEvents(true);
//Also check for the return, escape or backspace button.
//escape = KEYUP.
//backspace and return = KEYDOWN.
if(skip && ((event.type==SDL_KEYDOWN && event.key.keysym.sym==SDLK_ESCAPE) ||
(event.type==SDL_KEYDOWN && (event.key.keysym.sym==SDLK_RETURN || event.key.keysym.sym==SDLK_BACKSPACE)))){
delete GUIObjectRoot;
GUIObjectRoot=NULL;
}
}
//Render the gui.
if(GUIObjectRoot)
GUIObjectRoot->render();
/*//draw new achievements (if any)
statsMgr.render();*/
//display it
flipScreen();
SDL_Delay(30);
}
//We broke out so clean up.
delete this;
}
void GUIOverlay::handleEvents(){
//Check if we need to quit, if so we enter the exit state.
if(event.type==SDL_QUIT){
setNextState(STATE_EXIT);
}
}
//Nothing to do here
void GUIOverlay::logic(){
//Check if the GUIObjectRoot (of the overlay) is deleted.
if(!GUIObjectRoot)
delete this;
}
void GUIOverlay::render(){}
void GUIOverlay::resize(){
//We recenter the GUI.
GUIObjectRoot->left=(SCREEN_WIDTH-GUIObjectRoot->width)/2;
GUIObjectRoot->top=(SCREEN_HEIGHT-GUIObjectRoot->height)/2;
//Now let the parent state resize.
GUIObjectRoot=tempGUIObjectRoot;
parentState->resize();
//NOTE: After the resize it's likely that the GUIObjectRoot is new so we need to update our tempGUIObjectRoot pointer.
tempGUIObjectRoot=GUIObjectRoot;
//Now render the parentState.
parentState->render();
if(GUIObjectRoot)
GUIObjectRoot->render();
//And set the GUIObjectRoot back to the overlay gui.
GUIObjectRoot=root;
//Dim the background.
if(dim){
SDL_FillRect(tempSurface,NULL,0);
SDL_SetAlpha(tempSurface,SDL_SRCALPHA,155);
SDL_BlitSurface(tempSurface,NULL,screen,NULL);
}
}

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