/**
* Handle button selection, either with mouse or keyboard.
* If handled, return its index, otherwise SDLGUI_NOTFOUND.
*/
static int SDLGui_HandleSelection(SGOBJ *dlg, int obj, int oldbutton)
{
SDL_Rect rct;
int i, retbutton = SDLGUI_NOTFOUND;
switch (dlg[obj].type)
{
case SGBUTTON:
if (oldbutton==obj)
retbutton=obj;
break;
case SGSCROLLBAR:
dlg[obj].state &= ~SG_MOUSEDOWN;
if (oldbutton==obj)
retbutton=obj;
break;
case SGEDITFIELD:
SDLGui_EditField(dlg, obj);
break;
case SGRADIOBUT:
for (i = obj-1; i > 0 && dlg[i].type == SGRADIOBUT; i--)
{
dlg[i].state &= ~SG_SELECTED; /* Deselect all radio buttons in this group */
rct.x = (dlg[0].x+dlg[i].x)*sdlgui_fontwidth;
rct.y = (dlg[0].y+dlg[i].y)*sdlgui_fontheight;
rct.w = sdlgui_fontwidth;
rct.h = sdlgui_fontheight;
SDL_FillRect(pSdlGuiScrn, &rct, colors.midgrey); /* Clear old */
SDLGui_DrawRadioButton(dlg, i);
SDL_UpdateRects(pSdlGuiScrn, 1, &rct);
}
for (i = obj+1; dlg[i].type == SGRADIOBUT; i++)
{
dlg[i].state &= ~SG_SELECTED; /* Deselect all radio buttons in this group */
rct.x = (dlg[0].x+dlg[i].x)*sdlgui_fontwidth;
rct.y = (dlg[0].y+dlg[i].y)*sdlgui_fontheight;
rct.w = sdlgui_fontwidth;
rct.h = sdlgui_fontheight;
SDL_FillRect(pSdlGuiScrn, &rct, colors.midgrey); /* Clear old */
SDLGui_DrawRadioButton(dlg, i);
SDL_UpdateRects(pSdlGuiScrn, 1, &rct);
}
dlg[obj].state |= SG_SELECTED; /* Select this radio button */
rct.x = (dlg[0].x+dlg[obj].x)*sdlgui_fontwidth;
rct.y = (dlg[0].y+dlg[obj].y)*sdlgui_fontheight;
rct.w = sdlgui_fontwidth;
rct.h = sdlgui_fontheight;
SDL_FillRect(pSdlGuiScrn, &rct, colors.midgrey); /* Clear old */
SDLGui_DrawRadioButton(dlg, obj);
SDL_UpdateRects(pSdlGuiScrn, 1, &rct);
break;
case SGCHECKBOX:
dlg[obj].state ^= SG_SELECTED;
rct.x = (dlg[0].x+dlg[obj].x)*sdlgui_fontwidth;
rct.y = (dlg[0].y+dlg[obj].y)*sdlgui_fontheight;
rct.w = sdlgui_fontwidth;
rct.h = sdlgui_fontheight;
SDL_FillRect(pSdlGuiScrn, &rct, colors.midgrey); /* Clear old */
SDLGui_DrawCheckBox(dlg, obj);
SDL_UpdateRects(pSdlGuiScrn, 1, &rct);
break;
case SGPOPUP:
dlg[obj].state |= SG_SELECTED;
SDLGui_DrawPopupButton(dlg, obj);
SDL_UpdateRect(pSdlGuiScrn,
(dlg[0].x+dlg[obj].x)*sdlgui_fontwidth-2,
(dlg[0].y+dlg[obj].y)*sdlgui_fontheight-2,
dlg[obj].w*sdlgui_fontwidth+4,
dlg[obj].h*sdlgui_fontheight+4);
retbutton=obj;
break;
}
if (retbutton == SDLGUI_NOTFOUND && (dlg[obj].flags & SG_EXIT) != 0)
{
retbutton = obj;
}
return retbutton;
}
/**SDLGui_DoDialog
* Show and process a dialog. Returns the button number that has been
* pressed or SDLGUI_UNKNOWNEVENT if an unsupported event occured (will be
* stored in parameter pEventOut).
*/
int32_t SDLGui_DoDialog(SGOBJ *dlg, int/*SDL_Event */*pEventOut)
{
int32_t obj=0;
int32_t oldbutton=0;
int32_t retbutton=0;
int32_t i, j, b;
int32_t /*SDL_Event*/ sdlEvent;//SDL_Event sdlEvent;
SDL_Rect rct;
Uint32 grey;
SDL_Rect dlgrect, bgrect;
grey = 0xC0C0C0FF;
dlgrect.x = dlg[0].x * sdlgui_fontwidth;
dlgrect.y = dlg[0].y * sdlgui_fontheight;
dlgrect.w = dlg[0].w * sdlgui_fontwidth;
dlgrect.h = dlg[0].h * sdlgui_fontheight;
bgrect.x = bgrect.y = 0;
bgrect.w = dlgrect.w;
bgrect.h = dlgrect.h;
/* (Re-)draw the dialog */
SDLGui_DrawDialog(dlg);
input_gui();
if(touch!=-1){b=1;boutc=1;}
else {b=0;boutc=0;}
i=gmx;j=gmy;
/* If current object is the scrollbar, and mouse is still down, we can scroll it */
/* also if the mouse pointer has left the scrollbar */
if (dlg[current_object].type == SGSCROLLBAR) {
if (b == 1/*& SDL_BUTTON(1))*/) {
obj = current_object;
dlg[obj].state |= SG_MOUSEDOWN;
oldbutton = obj;
retbutton = obj;
}
else {
obj = current_object;
current_object = 0;
dlg[obj].state &= SG_MOUSEUP;
//retbutton = obj;
//oldbutton = obj;
okold=1;
}
}
else {
obj = SDLGui_FindObj(dlg, i, j);
current_object = obj;
if (obj > 0 && (dlg[obj].flags&SG_TOUCHEXIT) )
{
oldbutton = obj;
if (b ==1/*2*/ /*& SDL_BUTTON(1)*/)
{
dlg[obj].state |= SG_SELECTED;
retbutton = obj;
}else{
dlg[obj].state &= ~SG_SELECTED;
}
}
}
/* The main loop */
while (retbutton == 0 && !bQuitProgram)
{
input_gui();
draw_cross(gmx,gmy);
if(touch!=-1 && okold==0 ){
okold=1;
obj = SDLGui_FindObj(dlg, gmx, gmy);
if (obj>0)
{
if (dlg[obj].type==SGBUTTON)
{
dlg[obj].state |= SG_SELECTED;
SDLGui_DrawButton(dlg, obj);
oldbutton=obj;//dbgoldobj=obj;
}
if (dlg[obj].type==SGSCROLLBAR)
{
dlg[obj].state |= SG_MOUSEDOWN;
oldbutton=obj;
}
if ( dlg[obj].flags&SG_TOUCHEXIT )
{
dlg[obj].state |= SG_SELECTED;
retbutton = obj;
}
}
}
else if(touch==-1 && okold==1){
okold=0;
// It was the left button: Find the object under the mouse cursor /
obj = SDLGui_FindObj(dlg, gmx, gmy);
if (obj>0)
{
switch (dlg[obj].type)
{
case SGBUTTON:
if (oldbutton==obj){
retbutton=obj;}
break;
case SGSCROLLBAR:
dlg[obj].state &= SG_MOUSEUP;
if (oldbutton==obj)
retbutton=obj;
break;
case SGEDITFIELD:
SDLGui_EditField(dlg, obj);
break;
case SGRADIOBUT:
for (i = obj-1; i > 0 && dlg[i].type == SGRADIOBUT; i--)
{
dlg[i].state &= ~SG_SELECTED; // Deselect all radio buttons in this group /
DrawBoxF((dlg[0].x+dlg[i].x)*fontwidth,(dlg[0].y+dlg[i].y)*fontheight,0,fontwidth ,fontheight,grey);
SDLGui_DrawRadioButton(dlg, i);
}
for (i = obj+1; dlg[i].type == SGRADIOBUT; i++)
{
dlg[i].state &= ~SG_SELECTED; // Deselect all radio buttons in this group /
DrawBoxF((dlg[0].x+dlg[i].x)*fontwidth,(dlg[0].y+dlg[i].y)*fontheight,0,fontwidth ,fontheight,grey);
SDLGui_DrawRadioButton(dlg, i);
}
dlg[obj].state |= SG_SELECTED; // Select this radio button
DrawBoxF((dlg[0].x+dlg[obj].x)*fontwidth,(dlg[0].y+dlg[obj].y)*fontheight,0,fontwidth ,fontheight,grey);
SDLGui_DrawRadioButton(dlg, obj);
break;
case SGCHECKBOX:
dlg[obj].state ^= SG_SELECTED;
DrawBoxF((dlg[0].x+dlg[obj].x)*fontwidth,(dlg[0].y+dlg[obj].y)*fontheight,0,fontwidth ,fontheight,grey);
SDLGui_DrawCheckBox(dlg, obj);
break;
case SGPOPUP:
dlg[obj].state |= SG_SELECTED;
SDLGui_DrawPopupButton(dlg, obj);
retbutton=obj;
break;
}
}
if (oldbutton > 0)
{
dlg[oldbutton].state &= ~SG_SELECTED;
SDLGui_DrawButton(dlg, oldbutton);
oldbutton = 0;//dbgoldobj=0;
}
if (obj >= 0 && (dlg[obj].flags&SG_EXIT))
{
if(dlg[obj].type==SGBUTTON)dlg[obj].state &= ~SG_SELECTED;
retbutton = obj;
}
}
if(retbutton ==0)retbutton = 1;//SG_TOUCHEXIT ;
}
if (retbutton == SDLGUI_QUIT)
bQuitProgram = true;
return retbutton;
}
/**
* Show and process a dialog. Returns the button number that has been
* pressed or SDLGUI_UNKNOWNEVENT if an unsupported event occured (will be
* stored in parameter pEventOut).
*/
int SDLGui_DoDialog(SGOBJ *dlg, SDL_Event *pEventOut)
{
int obj=0;
int oldbutton=0;
int retbutton=0;
int i, j, b;
SDL_Event sdlEvent;
SDL_Rect rct;
Uint32 grey;
SDL_Surface *pBgSurface;
SDL_Rect dlgrect, bgrect;
if (pSdlGuiScrn->h / sdlgui_fontheight < dlg[0].h)
{
fprintf(stderr, "Screen size too small for dialog!\n");
return SDLGUI_ERROR;
}
grey = SDL_MapRGB(pSdlGuiScrn->format,181,183,170);
dlgrect.x = dlg[0].x * sdlgui_fontwidth;
dlgrect.y = dlg[0].y * sdlgui_fontheight;
dlgrect.w = dlg[0].w * sdlgui_fontwidth;
dlgrect.h = dlg[0].h * sdlgui_fontheight;
bgrect.x = bgrect.y = 0;
bgrect.w = dlgrect.w;
bgrect.h = dlgrect.h;
/* Save background */
pBgSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, dlgrect.w, dlgrect.h, pSdlGuiScrn->format->BitsPerPixel,
pSdlGuiScrn->format->Rmask, pSdlGuiScrn->format->Gmask, pSdlGuiScrn->format->Bmask, pSdlGuiScrn->format->Amask);
if (pSdlGuiScrn->format->palette != NULL)
{
SDL_SetPaletteColors(pBgSurface->format->palette, pSdlGuiScrn->format->palette->colors, 0, pSdlGuiScrn->format->palette->ncolors-1);
}
if (pBgSurface != NULL)
{
SDL_BlitSurface(pSdlGuiScrn, &dlgrect, pBgSurface, &bgrect);
}
else
{
fprintf(stderr, "SDLGUI_DoDialog: CreateRGBSurface failed: %s\n", SDL_GetError());
}
/* (Re-)draw the dialog */
SDLGui_DrawDialog(dlg);
/* Is the left mouse button still pressed? Yes -> Handle TOUCHEXIT objects here */
SDL_PumpEvents();
b = SDL_GetMouseState(&i, &j);
/* If current object is the scrollbar, and mouse is still down, we can scroll it */
/* also if the mouse pointer has left the scrollbar */
if (dlg[current_object].type == SGSCROLLBAR) {
if (b & SDL_BUTTON(1)) {
obj = current_object;
dlg[obj].state |= SG_MOUSEDOWN;
oldbutton = obj;
retbutton = obj;
}
else {
obj = current_object;
current_object = 0;
dlg[obj].state &= SG_MOUSEUP;
retbutton = obj;
oldbutton = obj;
}
}
else {
obj = SDLGui_FindObj(dlg, i, j);
current_object = obj;
if (obj > 0 && (dlg[obj].flags&SG_TOUCHEXIT) )
{
oldbutton = obj;
if (b & SDL_BUTTON(1))
{
dlg[obj].state |= SG_SELECTED;
retbutton = obj;
}
}
}
/* The main loop */
while (retbutton == 0 && !bQuitProgram)
{
if (SDL_WaitEvent(&sdlEvent) == 1) /* Wait for events */
switch (sdlEvent.type)
{
case SDL_QUIT:
retbutton = SDLGUI_QUIT;
break;
case SDL_MOUSEBUTTONDOWN:
if (sdlEvent.button.button != SDL_BUTTON_LEFT)
{
/* Not left mouse button -> unsupported event */
if (pEventOut)
retbutton = SDLGUI_UNKNOWNEVENT;
break;
}
/* It was the left button: Find the object under the mouse cursor */
obj = SDLGui_FindObj(dlg, sdlEvent.button.x, sdlEvent.button.y);
if (obj>0)
{
if (dlg[obj].type==SGBUTTON)
{
dlg[obj].state |= SG_SELECTED;
SDLGui_DrawButton(dlg, obj);
SDL_UpdateRect(pSdlGuiScrn, (dlg[0].x+dlg[obj].x)*sdlgui_fontwidth-2, (dlg[0].y+dlg[obj].y)*sdlgui_fontheight-2,
dlg[obj].w*sdlgui_fontwidth+4, dlg[obj].h*sdlgui_fontheight+4);
oldbutton=obj;
}
if (dlg[obj].type==SGSCROLLBAR)
{
dlg[obj].state |= SG_MOUSEDOWN;
oldbutton=obj;
}
if ( dlg[obj].flags&SG_TOUCHEXIT )
{
dlg[obj].state |= SG_SELECTED;
retbutton = obj;
}
}
break;
case SDL_MOUSEBUTTONUP:
if (sdlEvent.button.button != SDL_BUTTON_LEFT)
{
/* Not left mouse button -> unsupported event */
if (pEventOut)
retbutton = SDLGUI_UNKNOWNEVENT;
break;
}
/* It was the left button: Find the object under the mouse cursor */
obj = SDLGui_FindObj(dlg, sdlEvent.button.x, sdlEvent.button.y);
if (obj>0)
{
switch (dlg[obj].type)
{
case SGBUTTON:
if (oldbutton==obj)
retbutton=obj;
break;
case SGSCROLLBAR:
dlg[obj].state &= SG_MOUSEUP;
if (oldbutton==obj)
retbutton=obj;
break;
case SGEDITFIELD:
SDLGui_EditField(dlg, obj);
break;
case SGRADIOBUT:
for (i = obj-1; i > 0 && dlg[i].type == SGRADIOBUT; i--)
{
dlg[i].state &= ~SG_SELECTED; /* Deselect all radio buttons in this group */
rct.x = (dlg[0].x+dlg[i].x)*sdlgui_fontwidth;
rct.y = (dlg[0].y+dlg[i].y)*sdlgui_fontheight;
rct.w = sdlgui_fontwidth;
rct.h = sdlgui_fontheight;
SDL_FillRect(pSdlGuiScrn, &rct, grey); /* Clear old */
SDLGui_DrawRadioButton(dlg, i);
SDL_UpdateRects(pSdlGuiScrn, 1, &rct);
}
for (i = obj+1; dlg[i].type == SGRADIOBUT; i++)
{
dlg[i].state &= ~SG_SELECTED; /* Deselect all radio buttons in this group */
rct.x = (dlg[0].x+dlg[i].x)*sdlgui_fontwidth;
rct.y = (dlg[0].y+dlg[i].y)*sdlgui_fontheight;
rct.w = sdlgui_fontwidth;
rct.h = sdlgui_fontheight;
SDL_FillRect(pSdlGuiScrn, &rct, grey); /* Clear old */
SDLGui_DrawRadioButton(dlg, i);
SDL_UpdateRects(pSdlGuiScrn, 1, &rct);
}
dlg[obj].state |= SG_SELECTED; /* Select this radio button */
rct.x = (dlg[0].x+dlg[obj].x)*sdlgui_fontwidth;
rct.y = (dlg[0].y+dlg[obj].y)*sdlgui_fontheight;
rct.w = sdlgui_fontwidth;
rct.h = sdlgui_fontheight;
SDL_FillRect(pSdlGuiScrn, &rct, grey); /* Clear old */
SDLGui_DrawRadioButton(dlg, obj);
SDL_UpdateRects(pSdlGuiScrn, 1, &rct);
retbutton = obj; // added by andreas_g
break;
case SGCHECKBOX:
dlg[obj].state ^= SG_SELECTED;
rct.x = (dlg[0].x+dlg[obj].x)*sdlgui_fontwidth;
rct.y = (dlg[0].y+dlg[obj].y)*sdlgui_fontheight;
rct.w = sdlgui_fontwidth;
rct.h = sdlgui_fontheight;
SDL_FillRect(pSdlGuiScrn, &rct, grey); /* Clear old */
SDLGui_DrawCheckBox(dlg, obj);
SDL_UpdateRects(pSdlGuiScrn, 1, &rct);
retbutton = obj; // added by andreas_g
break;
case SGPOPUP:
dlg[obj].state |= SG_SELECTED;
SDLGui_DrawPopupButton(dlg, obj);
SDL_UpdateRect(pSdlGuiScrn, (dlg[0].x+dlg[obj].x)*sdlgui_fontwidth-2, (dlg[0].y+dlg[obj].y)*sdlgui_fontheight-2,
dlg[obj].w*sdlgui_fontwidth+4, dlg[obj].h*sdlgui_fontheight+4);
retbutton=obj;
break;
}
}
if (oldbutton > 0 && dlg[oldbutton].type == SGBUTTON)
{
dlg[oldbutton].state &= ~SG_SELECTED;
SDLGui_DrawButton(dlg, oldbutton);
SDL_UpdateRect(pSdlGuiScrn, (dlg[0].x+dlg[oldbutton].x)*sdlgui_fontwidth-2, (dlg[0].y+dlg[oldbutton].y)*sdlgui_fontheight-2,
dlg[oldbutton].w*sdlgui_fontwidth+4, dlg[oldbutton].h*sdlgui_fontheight+4);
oldbutton = 0;
}
if (obj >= 0 && (dlg[obj].flags&SG_EXIT))
{
retbutton = obj;
}
break;
case SDL_JOYAXISMOTION:
case SDL_JOYBALLMOTION:
case SDL_JOYHATMOTION:
case SDL_MOUSEMOTION:
break;
case SDL_KEYDOWN: /* Key pressed */
if (sdlEvent.key.keysym.sym == SDLK_RETURN
|| sdlEvent.key.keysym.sym == SDLK_KP_ENTER)
{
retbutton = SDLGui_SearchFlaggedButton(dlg, SG_DEFAULT);
}
else if (sdlEvent.key.keysym.sym == SDLK_ESCAPE)
{
retbutton = SDLGui_SearchFlaggedButton(dlg, SG_CANCEL);
}
else if (pEventOut)
{
retbutton = SDLGUI_UNKNOWNEVENT;
}
break;
default:
if (pEventOut)
retbutton = SDLGUI_UNKNOWNEVENT;
break;
}
}
/* Restore background */
if (pBgSurface)
{
SDL_BlitSurface(pBgSurface, &bgrect, pSdlGuiScrn, &dlgrect);
SDL_FreeSurface(pBgSurface);
}
/* Copy event data of unsupported events if caller wants to have it */
if (retbutton == SDLGUI_UNKNOWNEVENT && pEventOut)
memcpy(pEventOut, &sdlEvent, sizeof(SDL_Event));
if (retbutton == SDLGUI_QUIT)
bQuitProgram = true;
return retbutton;
}