/*-------------------------------------------- Examples - CRM32Pro SDK - Roberto Prieto Copyright (C) 2001-2011 MegaStorm Systems -------------------------------------------- Example 3: GUI interface ------------------------ - Initialize SDL and CRM32Pro. - Use of log system. - Initialize graphics: window icon, video mode and cursor. - Load buttons from DPF - Blit a surface, show interface with buttons and show the use of fonts and fades. - Exiting using the right way ;) This example is totally free and can be used without any restriction but there is not any warranty for its usage. Please, do not forget to include a copy of all the library licenses located at /licenses directory if you distribute or share it. Roberto Prieto megastorm@ono.com http://www.megastormsystems.com */ // ---Includes--- #include "CRM32Pro.h" // ---Defines--- #define EXAMPLE_VERSION "Example 3: GUI" #define GFX_RESOURCE "data/gfx.dpf" // DPF with graphic resources // ---Prototypes--- void ModifyProgress(void *,void *); void PrintHelp(); // ---Global vars--- SDL_Surface *sBg = NULL; // Background surface CRM32Pro_CFont *fFont; char sFont[20]; // Text to render using font // -------------MAIN FUNCTION---------------- int main(int argc,char *argv[]) { SDL_Event event; Uint32 cCursor; // Cursor ID CRM32Pro_CFont *fInput; // Font object const int iAdd = 1, iSub = -1; // Constant used by the ModifyProgress() function Uint8 done = 0; // Buttons' ID Uint32 bExitID, bID, bCheckID, bSliderID, bInputID; Uint32 bProgressID, bAddID, bSubtractID; // -Print help on a window- PrintHelp(); // -Log system initialize- ILogSystem.Init("GUI.log",LOG_FILE | LOG_CONSOLE,LOG_NORMAL,EXAMPLE_VERSION); // -CRM32Pro and SDL initialize- if(CRM32Pro.Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER) < 0) { ILogSystem.Msg(LOG_NORMAL," · [LOG] - Couldnīt initialize CRM32Pro: %s\n",SDL_GetError()); return 1; } // -Desired config- CRM32Pro.Config.Title = EXAMPLE_VERSION; CRM32Pro.Config.Icon = IImage->Load(GFX_RESOURCE,"icono"); CRM32Pro.Config.bMTFriendly = 1; //CRM32Pro.Config.VideoRenderer = RENDER_OPENGL; //CRM32Pro.Config.VideoAccel = ACCEL_HARDSMOOTH ; // -Graphics system initialize- if(!CRM32Pro.SetVideoMode()) { CRM32Pro.Quit(); return 1; } // Cursor init ICursor->Init(); cCursor = ICursor->Load(GFX_RESOURCE,"cursor"); ICursor->Select(cCursor); // -Time system initialize- ITimeSystem->Init(); ITimeSystem->SetRate(0,20); // Optional: desired Rendering and Logic Frame Rate // -Load resources- sBg = IImage->Load(GFX_RESOURCE,"background"); IButton->SetLayer(0); bExitID = IButton->Load(GFX_RESOURCE,"MyComplex"); bCheckID = IButton->Load(GFX_RESOURCE,"MyCheck"); bSliderID = IButton->Load(GFX_RESOURCE,"MySlider"); bInputID = IButton->Load(GFX_RESOURCE,"MyInput"); bProgressID = IButton->Load(GFX_RESOURCE,"MyProgress"); bAddID = IButton->Load(GFX_RESOURCE,"MyAdd"); bSubtractID = IButton->Load(GFX_RESOURCE,"MySubtract"); // -Setting a function for Add and Subtract buttons- IButton->SetFunction(bAddID,ModifyProgress,(void*)&bProgressID,(void*)&iAdd); IButton->SetFunction(bSubtractID,ModifyProgress,(void*)&bProgressID,(void*)&iSub); // -Setting the font for the inputbox- fFont = new CRM32Pro_CFont; fFont->Load(GFX_RESOURCE,"MyFont"); fInput = new CRM32Pro_CFont; fInput->Load(GFX_RESOURCE,"InputFont"); IButton->SetTextFont(bInputID,fInput); IButton->SetText(bInputID,"CRM32Pro Example"); // -Main loop- strcpy(sFont,""); while(!done) { // 1.Logic frame stuff // Button check bID = IButton->Check(); if(bID == bExitID) done = 1; else if(bID == bSliderID) { if(IButton->GetValue(bSliderID) == 0) { strcpy(sFont,"0123456789"); } else if(IButton->GetValue(bSliderID) == 1) { strcpy(sFont,"green font"); } else strcpy(sFont,"ANOTHER FONT"); } // 2.Event loop: update all systems: our graphics using render callback function,events,timing... while(CRM32Pro.Update(&event)) { switch(event.type) { case SDL_QUIT: done = 1; break; case SDL_KEYDOWN: if(event.key.keysym.sym == SDLK_ESCAPE) done = 1; if(event.key.keysym.sym == SDLK_1) { ICursor->ChangeType(cCursor,CTYPE_CENTER); ILogSystem.Msg(LOG_NORMAL,"Cursor Center\n"); } if(event.key.keysym.sym == SDLK_2) { ICursor->ChangeType(cCursor,CTYPE_NORMAL); ILogSystem.Msg(LOG_NORMAL,"Cursor normal\n"); } break; case EVENT_LOGICWAIT: // While CRM32Pro.Update() wait for fulfill the logic rate this event is raised // You could do some stuff here. // Is possible to call here to your Rendering Graphics after checking the user.code returned instead of using the CRM32Pro callback, // but it will have some extra overdraw. // As this is an example, we dont mind about overdraw if(event.user.code == EVENT_CODE_RENDER) { CRM32Pro.RenderNeeded(); // Request a next frame update CRM32Pro.Blit(sBg,NULL,CRM32Pro.screen,NULL); fFont->PutString(CRM32Pro.screen,330,350,sFont); IButton->Draw(); } break; default: break; } } } // Timer information ITimeSystem->Info(); // Fade to white if(IButton->GetState(bCheckID) == B_PRESS) { IScreenFX->FadeToColor(255,255,255,1000); } // Free resources and exit IButton->Info(1); fFont->Info(); delete fFont; delete fInput; IButton->RemoveAll(); CRM32Pro.FreeSurface(sBg); ICursor->Delete(cCursor); // -Exiting..- CRM32Pro.VideoInfo(); CRM32Pro.Quit(); return 0; } // Assigned function to two buttons: modify (add or subtract) the progress bar void ModifyProgress(void *iParam1, void *iParam2) { // Explicit cast to our right data type const int *id = (const int*)iParam1; const int *op = (const int*)iParam2; // Modify the progress bar int current = IButton->GetValue(*id); current = current + *op; IButton->SetValue(*id, current); } // --------------------Help STUFF------------------------ // -Print help- void PrintHelp() { char *sMsg; // Create the message sMsg = new char[1024]; strcpy(sMsg,"-----------------------------------------------------------\n"); strcat(sMsg," "); strcat(sMsg,EXAMPLE_VERSION); strcat(sMsg,"\n-----------------------------------------------------------\n\n"); strcat(sMsg," Press [ESCAPE] key to exit.\n"); strcat(sMsg," Press [1] to set the CTYPE_CENTER cursor pointer.\n"); strcat(sMsg," Press [2] to set the CTYPE_NORMAL cursor pointer.\n"); strcat(sMsg,"\n Runtime information is logged into 'GUI.log' file.\n"); strcat(sMsg,"\n"); // Display the message #ifdef _WINDOWS MessageBox(NULL,sMsg,"CRM32Pro SDK - HelpScreen",MB_OK); #endif #ifdef _LINUX printf("CRM32Pro SDK - HelpScreen\n%s",sMsg); #endif // Free the message delete sMsg; }
1.7.1
