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canvas.c
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canvas.c
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/**
* Milan Kazarka 2010, all rights reserved
* Ul.M.R.Stefanika 44/29, Ziar nad Hronom, Slovakia
*
*/
#include "system.h"
#include "gui.h"
#include "xml.h"
#include "interface.h"
#include "global.h"
#include "ai.h"
#include "config.h"
#include "mikaSkin.h"
#ifdef USEX
#define _CANVAS_EFFECTS
struct _can_content *_can_content_init(
struct _can_content *content
)
{
if (content==NULL)
{
content = (struct _can_content*)malloc(sizeof(struct _can_content));
}
content->fillx = DEFA_CSMAR; // todo, duplicate init
content->bottomy = DEFA_CSMARTB;
content->filly = content->bottomy;
content->bottomy += DEFA_CSMAR;
content->w = 0;
content->h = 0;
content->movey = 0;
lst_can_content = trop_ListAdd(lst_can_content,content);
return content;
}
struct _can_content *form_CanvasGetContentEx(
struct gui_Widget *wi
)
{
static struct form_Canvas *can = NULL;
if (!wi) return NULL;
if (wi->form==NULL) return NULL;
can = wi->form;
return can->content;
}
struct _can_obj *form_CanvasGetContent(
struct gui_Widget *wi
)
{
if (!wi) return NULL;
else return ((struct form_Canvas*)wi->form)->can_pool;
}
int form_CanvasSetContentEx(
struct gui_Widget *wi,
struct _can_content *content
)
{
static struct form_Canvas *can = NULL;
if (!wi||!content) return -1;
can->content = content;
return 0;
}
/*
sets the canvases objects
*/
int form_CanvasSetContent(
struct gui_Widget *wi,
struct _can_obj *obj
)
{
if (!wi || !obj) return -1;
return 0;
}
int form_CanvasMoveCheck( struct gui_Widget *wi, int *movex, int movey )
{
if (!wi||!movex||!movey) return -1;
return 0;
}
/*
'zotrvacnost' when sliding
*/
int form_CanvasEffectExtraSlide( struct gui_Widget *wi )
{
static struct form_Canvas *can = NULL;
static struct _can_obj *cano = NULL;
static struct interface_event_t ievent;
static int i;
static int val;
static int yhigh;
static int abs_move;
static int mid_move;
static int nmem;
if (!wi) return -1;
val = 0;
yhigh = -1;
abs_move = 0;
mid_move = 0;
nmem = 0;
can = wi->form;
for (i = 0; i < CAN_VRMOVE; i++)
{
abs_move += abs(can->vrmove[i]);
if (can->vrmove[i]!=0) nmem++;
}
if (nmem<2) return -1;
if (nmem>0)
mid_move = abs_move / nmem;
if (can->vrmove[0]<0)
mid_move=-mid_move;
for (i = 0; i < nmem; i++)
val += mid_move/(nmem/1.5);
if ((can->movey>0 && val>0) || can->movey+val>0) // upper limit
{
//if (can->movey<0) val = -can->movey;
//else return -1;
return -1;
}
cano = can->can_pool;
while(cano!=NULL)
{
if (yhigh < cano->pos.y+cano->pos.h)
yhigh = cano->pos.y+cano->pos.h;
cano = cano->next;
}
if (DEBUG==TRUE) printf("CanvasMove yhigh(%d)\n",yhigh);
if (can->movey+yhigh+DEFA_CSMARTB < wi->attr.h && val<0) // lower limit
{
return -1;
}
if (DEBUG==TRUE) printf("__canvas EffectExtraSlide mid(%d) nmem(%d)\n",
mid_move,nmem);
for (i = 0; i < nmem; i++)
{
if (DEBUG==TRUE) printf("__canvas EffectExtraSlide expose\n");
if ( form_CanvasMove(wi,mid_move) != 0 )
break;
//can->movey += mid_move;
mid_move -= mid_move/(nmem/1.5);
#ifdef _USE_GUI_XLIB_INTERNALS
gui_EventExpose(NULL);
#else
ievent.type = INTERFACE_EVENT_EXPOSE;
ievent.x = 0;
ievent.y = 0;
ievent.width = 640;
ievent.height = 480;
bigInterface->addGuiEvent(bigInterface,&ievent);
//gui_WidgetPushEvent(&ievent);
#endif
usleep(5000);
}
return 0;
}
void *_expose(void*data)
{
gui_TriggerExpose(NULL);
}
int form_CanvasMotion( struct gui_Event *event )
{
struct form_Canvas *can = NULL;
static int lastx = -1;
static int lasty = -1;
static int i;
if (event==NULL)
{
lastx = -1;
lasty = -1;
return 0;
}
can = event->widget->form;
#ifdef _DEBUG
printf("form_CanvasMotion can(%p)\n",can);
#endif
#ifdef _CANVAS_EFFECTS
for (i = CAN_VRMOVE-1; i > -1; i--)
{
if (i==CAN_VRMOVE-1) continue;
can->vrmove[i+1] = can->vrmove[i];
}
#endif
if (lastx!=-1&&lasty!=-1)
{
if (DEBUG==TRUE) printf("form_CanvasMotion (%d)\n",event->y-lasty);
form_CanvasMove(event->widget,event->y-lasty);
#ifdef _CANVAS_EFFECTS
can->vrmove[0] = event->y-lasty;
#endif
gui_TriggerExpose(gui_GetMain());
}
lastx = event->x;
lasty = event->y;
return 0;
}
int form_CanvasRelease( struct gui_Event *event )
{
form_CanvasMotion(NULL);
#ifdef _CANVAS_EFFECTS
form_CanvasEffectExtraSlide( event->widget );
#endif
return 0;
}
#define _DETAIL_NO
struct _can_obj *_ai_gui_position_to_object_ex( struct gui_Event *event )
{
struct _can_obj *object = NULL;
static struct form_Canvas *can = NULL;
static struct _can_obj *cano = NULL;
int movey = 0;
can = event->widget->form; // get canvas parent
cano = can->can_pool; // first canvas object
if (!cano) return NULL;
while(cano)
{
if (cano->bstatic==FALSE) movey = can->movey;
else movey = 0;
if (
(cano->pos.y+movey < event->y &&
cano->pos.y+cano->pos.h+movey > event->y)
&&
(cano->pos.x+movey < event->x &&
cano->pos.x+cano->pos.w > event->x)
)
{
object = cano;
break;
}
cano = cano->next;
}
return object;
}
/** button press when applied _AI logic
*/
int _ai_form_canvas_button_press_ex( struct gui_Event *event )
{
struct form_Canvas *can = NULL;
struct _can_obj *cano = NULL;
static int movey = 0;
static int i;
struct _can_obj *active = NULL;
struct _can_obj *smallest = NULL;
if (!event) return -1;
if (!event->widget) return -1;
if (DEBUG==TRUE) printf("_ai_form_canvas_button_press_ex\n");
can = event->widget->form;
cano = can->can_pool;
#ifdef _CANVAS_EFFECTS
for (i = 0; i < CAN_VRMOVE; i++)
{
can->vrmove[i] = 0;
can->svrmove[i].l = 0;
can->svrmove[i].t = 0;
}
#endif
int x = event->x;
int y = event->y;
int nx;
int ny;
struct gui_Event bogus;
memcpy((void*)&bogus,(void*)event,sizeof(struct gui_Event));
for(
ny = y-(IO_TOUCH_FRAME*IO_TOUCH_STEP);
ny < y+(IO_TOUCH_FRAME*IO_TOUCH_STEP); ny++
)
{
nx = x-(IO_TOUCH_FRAME*IO_TOUCH_STEP);
for(nx; nx < x+(IO_TOUCH_FRAME*IO_TOUCH_STEP); nx++)
{
bogus.x = nx;
bogus.y = ny;
active = _ai_gui_position_to_object_ex(&bogus);
if (!smallest && active)
{
if (active->widget->attr.onclick)
smallest = active;
}
else if (smallest!=active && active)
{
if (
(smallest->widget->attr.w*smallest->widget->attr.h)>
(active->widget->attr.w*active->widget->attr.h)
)
{
if (active->widget->attr.onclick)
smallest = active;
}
else if (
(smallest->widget->attr.w*smallest->widget->attr.h)==
(active->widget->attr.w*active->widget->attr.h)
)
{
/** which object is closer, if they are of the same size
*/
int activex1 = active->widget->attr.x+(active->widget->attr.w/2);
int activey1 = active->widget->attr.y+(active->widget->attr.h/2);
int smallestx1 = smallest->widget->attr.x+(smallest->widget->attr.w/2);
int smallesty1 = smallest->widget->attr.y+(smallest->widget->attr.h/2);
/** we take in account here the real sensor touch (evaluate)
*/
if (
abs(x-activex1)*abs(y-activey1) <
abs(x-smallestx1)*abs(y-smallesty1)
)
{
if (active->widget->attr.onclick)
smallest = active;
}
}
}
}
}
if (smallest)
{
cano = smallest;
event->sub = event->widget;
event->widget = cano->widget;
if (cano->bstatic==FALSE) movey = can->movey;
else movey = 0;
switch(cano->widget->attr.form)
{
case FORM_LBENTRY:
event->x = event->x - cano->pos.x;
event->y = event->y - (cano->pos.y+movey);
form_LBEntryButtonPress(event);
return 0;
break;
case FORM_KEYBOARD:
event->x = event->x - cano->pos.x;
event->y = event->y - (cano->pos.y+movey);
form_KeyboardButtonPress(event);
return 0;
break;
default:
if (DEBUG==TRUE)
printf("_ai canvas press (%dx%d) widget(%p) #2\n",
event->x,event->y,event->widget);
gui_WidgetButtonPress(event);
return 0;
break;
}
}
return 0;
}
/**
* Button Press in canvas widget
*/
int form_CanvasButtonPress( struct gui_Event *event )
{
#ifdef _AI
struct gui_Event bogus;
memcpy((void*)&bogus,(void*)event,sizeof(struct gui_Event));
int ret = _ai_form_canvas_button_press_ex((struct gui_Event*)&bogus);
return ret;
#else
static struct form_Canvas *can = NULL;
static struct _can_obj *cano = NULL;
static int movey = 0;
static int i;
if (!event) return -1;
if (DEBUG==TRUE) printf(":form_CanvasButtonPress\n");
can = event->widget->form;
cano = can->can_pool;
#ifdef _CANVAS_EFFECTS
for (i = 0; i < CAN_VRMOVE; i++)
{
can->vrmove[i] = 0;
can->svrmove[i].l = 0;
can->svrmove[i].t = 0;
}
#endif
while(cano!=NULL)
{
if (cano->bstatic==FALSE) movey = can->movey;
else movey = 0;
if (
(cano->pos.y+movey < event->y &&
cano->pos.y+cano->pos.h+movey > event->y)
&&
(cano->pos.x+movey < event->x &&
cano->pos.x+cano->pos.w > event->x)
)
{
event->sub = event->widget;
event->widget = cano->widget;
if (cano->widget->attr.form == FORM_LBENTRY)
{
event->x = event->x - cano->pos.x;
event->y = event->y - (cano->pos.y+movey);
form_LBEntryButtonPress(event);
break;
}
else if (cano->widget->attr.form == FORM_KEYBOARD)
{
event->x = event->x - cano->pos.x;
event->y = event->y - (cano->pos.y+movey);
form_KeyboardButtonPress(event);
break;
}
else
{
#ifdef _DEBUG
printf("_ai canvas press (%dx%d) widget(%p) #2\n",
event->x,event->y,event->widget);
#endif
gui_WidgetButtonPress(event);
break;
}
}
cano = cano->next;
}
return 0;
#endif
}
int _form_canvas_expose_slidebar( struct gui_Widget *w, int ylow, int yhigh )
{
static int abs_height = 0;
static int abs_slide_h = 0;
static int abs_slide_y = 0;
static struct gui_Surface *dummy_surface = NULL;
static struct form_Canvas *can = NULL;
if (!w) return -1;
can = (struct form_Canvas*)w->form;
if (can)
{
if (can->movetype==CAN_MOV_NONE) return 0;
}
if (dummy_surface==NULL)
{
dummy_surface = (struct gui_Surface*)malloc(sizeof(struct gui_Surface));
dummy_surface->image = (struct gui_Image*)malloc(sizeof(struct gui_Image));
#ifdef _USE_GUI_XLIB_INTERNALS
dummy_surface->image->ximage = gui_GetMain()->surface;
#else
#ifdef _DEBUG
if (DEBUG==TRUE) printf(":warning! - canvas not supporting dummy_surface\n");
#endif
#endif
}
abs_height = yhigh-ylow;
#ifdef _DEBUG
printf(":abs_height(%d)\n",abs_height);
#endif
abs_slide_h = (int)((float)w->attr.h/(float)((float)abs_height/(float)w->attr.h));
abs_slide_y = (int)((float)((float)abs(ylow)/(float)abs_height)*(float)w->attr.h);
#ifdef _DEBUG
printf(":abs_slide_h (%d) cons(%d > %d)\n",abs_slide_h,
w->attr.y+abs_slide_y+abs_slide_h,w->attr.y+w->attr.h);
#endif
if (w->attr.y+abs_slide_y+abs_slide_h > w->attr.y+w->attr.h)
{
abs_slide_h -= (w->attr.y+abs_slide_y+abs_slide_h) - (w->attr.y+w->attr.h);
}
// todo - rectangle color dependant on background
gui_DrawRoundRectangle(
NULL,
w->attr.x+w->attr.w-6,
abs_slide_y+w->attr.y,
5,abs_slide_h,
1
);
return 0;
}
/*
ListboxEntry cleanup
*/
int form_LBEntryFree( struct gui_Widget *wi )
{
static struct form_ListboxEntry *lbe = NULL;
if (!wi) return -1;
if (!wi->form) return -1;
lbe = wi->form;
if (lbe->str_big!=NULL)
{
free(lbe->str_big);
lbe->str_big = NULL;
}
if (lbe->str_small!=NULL)
{
free(lbe->str_small);
lbe->str_small = NULL;
}
free(lbe);
wi->form = NULL;
return 0;
}
/*
expose Listbox Entry, can be inserted in Canvas
TODO - make fully compatible with gui_WidgetExpose
- create one unified widget drawing routine
*/
int form_LBEntryExpose( struct gui_Widget *wi,
int x, int y,
int w, int h )
{
static struct form_ListboxEntry *lbe = NULL;
static int vw, vh, vx, vy, px, py;
static struct gui_Widget *parent = NULL;
static struct gui_Image *arrow = NULL;
static int tmpx;
static int tmpy;
static int tmpw;
static int tmph;
#ifdef _DEBUG
printf("form_LBEntryExpose (%d) (%d)\n",wi->attr.w,wi->attr.h);
#endif
if (!wi) return -1;
if (wi->attr.w<100 || wi->attr.h<20) return -1; // we have a minumum size which to accept
parent = wi->parent;
if (x>=parent->attr.w || y>=parent->attr.h) return -1;
if (parent != gui_GetMain()->parent)
{
px = parent->attr.x;
py = parent->attr.y;
}
//if (y+parent->attr.y+h > parent->attr.y+parent->attr.h) return -1;
lbe = (struct form_ListboxEntry*)wi->form;
vh = gui_GetMain()->attr.ftsize+2;
vw = wi->attr.w-(wi->attr.h*2);
gui_WidgetExpose(
wi,
x, y,
w, h
);
vx = x+parent->attr.x;
vy = y+parent->attr.y;
tmpx = gui_bounds.x;
tmpy = gui_bounds.y;
tmpw = gui_bounds.width;
tmph = gui_bounds.height;
gui_BoundsSet(
&gui_bounds,
parent->attr.x,parent->attr.y,
parent->attr.w,parent->attr.h);
vx = x+parent->attr.x+wi->attr.h;
vy = y+parent->attr.y;
if (lbe->str_big)
{
if (
vx > parent->attr.x &&
vy > parent->attr.y &&
vx+vw < parent->attr.x+parent->attr.w &&
vy+vh < parent->attr.y+parent->attr.h
)
{
gui_DrawTextEx(
(char*)lbe->str_big,
vx,vy,
vw,vh,DEFA_TXTR);
}
}
if (lbe->str_small)
{
vy += (wi->attr.h/2);
if (
vx > parent->attr.x &&
vy > parent->attr.y &&
vx+vw < parent->attr.x+parent->attr.w &&
vy+vh < parent->attr.y+parent->attr.h
)
{
gui_DrawTextEx(
(char*)lbe->str_small,
vx,vy,
vw,vh,DEFA_TXTR);
}
}
if (lbe->image)
{
vx = x+parent->attr.x;
vy = y+parent->attr.y;
gui_DrawImage(
lbe->image,
vx+DEFA_ROUND,
vy+DEFA_ROUND,
wi->attr.h-(DEFA_ROUND*2),
wi->attr.h-(DEFA_ROUND*2));
}
arrow = gui_ImagePick("IMG_ARROW");
if (arrow)
{
if (arrow->w>wi->attr.h) vw = wi->attr.h;
else vw = arrow->w;
if (arrow->h>wi->attr.h) vh = wi->attr.h;
else vh = arrow->h;
if (arrow!=NULL)
{
vx = x+parent->attr.x+wi->attr.w-wi->attr.h;
gui_DrawImage(
arrow,
vx+DEFA_ROUND,
vy+DEFA_ROUND,
vw-(DEFA_ROUND*2),
vh-(DEFA_ROUND*2)
);
}
}
gui_BoundsSet(&gui_bounds,tmpx,tmpy,tmpw,tmph);
return 0;
}
#define _RESTRICY_BUTTON_PRESS_NO
int form_LBEntryButtonPress( struct gui_Event *event )
{
static struct form_Canvas *can = NULL;
if (!event) return -1;
#ifdef _DEBUG
if (DEBUG==TRUE) printf(":form_LBEntryButtonPress (%d) (%d)\n",event->x,event->y);
#endif
can = event->widget->form;
#ifdef _RESTRICT_BUTTON_PRESS
if (event->x > event->widget->attr.w-event->widget->attr.h)
#endif
{
#ifdef _DEBUG
if (DEBUG==TRUE) printf(":form_LBEntryButtonPress go\n");
#endif
gui_WidgetButtonPress(event);
}
return 0;
}
void *form_CanvasExposeCall(
void *obj,
int x, int y,
int w, int h
)
{
form_CanvasExpose((struct gui_Widget*)obj);
return NULL;
}
/** expose the canvas and all it's children
*
*/
int form_CanvasExpose( struct gui_Widget *w )
{
static struct form_Canvas *can = NULL;
static struct _can_obj *cano = NULL;
static int ylow = 0;
static int yhigh = 0;
static int movey = 0;
static int n;
#ifdef _DEBUG
printf("form_CanvasExpose\n");
#endif
if (!w) return -1;
gui_WidgetExpose(w,
w->attr.x,
w->attr.y,
w->attr.w,
w->attr.h);
can = w->form;
ylow = 999000;
yhigh = -999000;
// levels represent the level in which we are in
//
for (n = GUI_LEVEL_MIN; n < GUI_LEVELS; n++)
{
cano = can->can_pool;
while(cano!=NULL)
{
if (cano->widget)
{
if (cano->widget->attr.level!=n)
{
cano = cano->next;
continue;
}
}
#ifdef _DEBUG
printf(":canvas object expose (%dx%d) at(%d %d) (%p)\n",
cano->pos.w,cano->pos.h,cano->pos.x,cano->pos.y,cano);
#endif
if (
cano->pos.y+can->movey<0 &&
cano->bstatic==FALSE
)
{
cano = cano->next;
continue;
}
if (cano->widget!=NULL)
{
if (cano->widget->attr.bvisible==FALSE)
{
cano = cano->next;
continue;
}
if (cano->bstatic == TRUE) movey = 0;
else movey = can->movey;
if (cano->widget->attr.form == FORM_LBENTRY)
{
form_LBEntryExpose(
cano->widget,
cano->pos.x,
cano->pos.y+movey,
cano->pos.w,
cano->pos.h
);
}
else if (cano->widget->attr.form == FORM_EDITABLE)
{
form_EditableExpose(
cano->widget,
cano->pos.x,
cano->pos.y+movey,
cano->pos.w,
cano->pos.h
);
}
else
{
if (cano->widget->attr.onexposeEx)
{
cano->widget->attr.onexposeEx(
cano->widget,
cano->pos.x,
cano->pos.y,
cano->pos.w,
cano->pos.h
);
}
else
{
gui_WidgetExpose(
cano->widget,
cano->pos.x,
cano->pos.y+movey,
cano->pos.w,
cano->pos.h
);
}
}
} // else abstract canvas object
if (yhigh < cano->pos.y+can->movey+cano->pos.h)
yhigh = cano->pos.y+can->movey+cano->pos.h;
if (ylow > cano->pos.y+can->movey)
ylow = cano->pos.y+can->movey;
cano = cano->next;
}
}
if (can->movetype!=CAN_MOV_NONE)
_form_canvas_expose_slidebar(w,ylow,yhigh);
return 0;
}
/** move all canvas objects which aren't static
*/
int form_CanvasMove( struct gui_Widget *w, int val )
{
struct form_Canvas *can = NULL;
struct _can_obj *cano = NULL;
int yhigh;
int i;
if (!w) return -1;
can = w->form;
if (can->movetype==CAN_MOV_NONE) return -1;
#ifdef _DEBUG
printf("form_CanvasMove move_by (%d)\n",val);
#endif
yhigh = -1;
if ((can->movey>0 && val>0) || can->movey+val>0) // upper limit
{
if (can->movey<0) val = -can->movey;
else return -1;
}
cano = can->can_pool;
while(cano!=NULL)
{
if (yhigh < cano->pos.y+cano->pos.h)
yhigh = cano->pos.y+cano->pos.h;
cano = cano->next;
}
#ifdef _DEBUG
printf("form_CanvasMove yhigh(%d)\n",yhigh);
#endif
if (can->movey+yhigh+DEFA_CSMARTB < w->attr.h && val<0) // lower limit
{
return -1;
}
for (i = CAN_VRMOVE-1; i > -1; i--) // movement vectors cache
{
if (i==CAN_VRMOVE-1) continue;
can->vrmove[i+1] = can->vrmove[i];
}
can->vrmove[0] = val;
if (can->movey+yhigh+DEFA_CSMARTB+val < w->attr.h && val<0)
{
val += w->attr.h - (can->movey+yhigh+DEFA_CSMARTB+val);
}
#ifdef _DEBUG
printf("form_CanvasMove move_by 2 movey(%d) val(%d)\n",can->movey,val);
#endif
can->movey += val;
return 0;
}
/*
add newline - abstract canvas object without binding to a gui_Widget
*/
int form_CanvasAddNewline( struct gui_Widget *w )
{
static struct form_Canvas *can = NULL;
static struct _can_obj *current = NULL;
if (!w) return -1;
can = w->form;
if (!can) return -1;
if (can->can_pool==NULL)
{
can->can_pool = (struct _can_obj*)malloc(sizeof(struct _can_obj));
current = can->can_pool;
}
else
{
current = can->can_pool;
while(current->next!=NULL)
{
current = current->next;
}
current->next = (struct _can_obj*)malloc(sizeof(struct _can_obj));
current = current->next;
}
current->pos.w = 0;
current->pos.h = 0;
can->fillx = DEFA_CSMAR;
can->filly = can->bottomy+DEFA_CSMAR;
current->pos.x = can->fillx;
current->pos.y = can->filly;
can->filly+=DEFA_CSMAR;
current->next = NULL;
current->widget = NULL;
current->type = CAN_BR;
return 0;
}
/*
todo - refactoring
*/
int _form_canvas_add_object( struct gui_Widget *w, struct gui_Widget *child, BOOL bstatic )
{
static struct form_Canvas *can = NULL;
static struct _can_obj *current = NULL;
if (!w || !child) return -1;
can = w->form;
if (!can) return -1;
if (can->can_pool==NULL)
{
can->can_pool = (struct _can_obj*)malloc(sizeof(struct _can_obj));
current = can->can_pool;
}
else
{
current = can->can_pool;
while(current->next!=NULL)
{
current = current->next;
}
current->next = (struct _can_obj*)malloc(sizeof(struct _can_obj));
current = current->next;
}
if (child->attr.form == FORM_LBENTRY)
{
child->attr.w = w->attr.w-DEFA_CSMARRL;
}
current->pos.w = child->attr.w;
current->pos.h = child->attr.h;
// todo handle special cases
current->bstatic = bstatic;
if (bstatic==FALSE)
{