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netsurf/atari/gemtk/guiwin.c

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//#include "global.h"
#include <stdint.h>
#include <stdbool.h>
#include <assert.h>
#include <cflib.h>
#include <gem.h>
#include <mt_gem.h>
#include "gemtk.h"
//#define DEBUG_PRINT(x) printf x
#define DEBUG_PRINT(x)
struct gui_window_s {
short handle;
guiwin_event_handler_f handler_func;
uint32_t flags;
uint32_t state;
OBJECT * toolbar;
short toolbar_idx;
struct guiwin_scroll_info_s scroll_info;
void *user_data;
struct gui_window_s *next, *prev;
};
static GUIWIN * winlist;
static VdiHdl v_vdi_h = -1;
static short work_out[57];
static void move_rect(GUIWIN * win, GRECT *rect, int dx, int dy)
{
INT16 xy[ 8];
long dum = 0L;
GRECT g;
VdiHdl vh = guiwin_get_vdi_handle(win);
while(!wind_update(BEG_UPDATE));
graf_mouse(M_OFF, 0L);
/* get intersection with screen area */
wind_get_grect(0, WF_CURRXYWH, &g);
rc_intersect(&g, rect);
xy[0] = rect->g_x;
xy[1] = rect->g_y;
xy[2] = xy[0] + rect->g_w-1;
xy[3] = xy[1] + rect->g_h-1;
xy[4] = xy[0] + dx;
xy[5] = xy[1] + dy;
xy[6] = xy[2] + dx;
xy[7] = xy[3] + dy;
vro_cpyfm(vh, S_ONLY, xy, (MFDB *)&dum, (MFDB *)&dum);
graf_mouse(M_ON, 0L);
wind_update(END_UPDATE);
}
static void preproc_scroll(GUIWIN *gw, short orientation, int units,
bool refresh)
{
struct guiwin_scroll_info_s *slid = guiwin_get_scroll_info(gw);
int oldpos = 0, newpos = 0, vis_units=0, pix = 0;
int abs_pix = 0;
GRECT *redraw=NULL, g, g_ro;
guiwin_get_grect(gw, GUIWIN_AREA_CONTENT, &g);
g_ro = g;
if (orientation == GUIWIN_VSLIDER) {
pix = units*slid->y_unit_px;
abs_pix = abs(pix);
oldpos = slid->y_pos;
vis_units = g.g_h/slid->y_unit_px;
newpos = slid->y_pos = MIN(slid->y_units-vis_units,
MAX(0, slid->y_pos+units));
if(oldpos == newpos)
return;
if (units>=vis_units || guiwin_has_intersection(gw, &g_ro)) {
// send complete redraw
redraw = &g_ro;
} else {
// only adjust ypos when scrolling down:
if(pix < 0 ) {
// blit screen area:
g.g_h -= abs_pix;
move_rect(gw, &g, 0, abs_pix);
g.g_y = g_ro.g_y;
g.g_h = abs_pix;
redraw = &g;
} else {
// blit screen area:
g.g_y += abs_pix;
g.g_h -= abs_pix;
move_rect(gw, &g, 0, -abs_pix);
g.g_y = g_ro.g_y + g_ro.g_h - abs_pix;
g.g_h = abs_pix;
redraw = &g;
}
}
} else {
pix = units*slid->x_unit_px;
abs_pix = abs(pix);
oldpos = slid->x_pos;
vis_units = g.g_w/slid->x_unit_px;
newpos = slid->x_pos = MIN(slid->x_units-vis_units,
MAX(0, slid->x_pos+units));
if(oldpos == newpos)
return;
if (units>=vis_units || guiwin_has_intersection(gw, &g_ro)) {
// send complete redraw
redraw = &g_ro;
} else {
// only adjust ypos when scrolling down:
if(pix < 0 ) {
// blit screen area:
g.g_w -= abs_pix;
move_rect(gw, &g, abs_pix, 0);
g.g_x = g_ro.g_x;
g.g_w = abs_pix;
redraw = &g;
} else {
// blit screen area:
g.g_x += abs_pix;
g.g_w -= abs_pix;
move_rect(gw, &g, -abs_pix, 0);
g.g_x = g_ro.g_x + g_ro.g_w - abs_pix;
g.g_w = abs_pix;
redraw = &g;
}
}
}
if (refresh) {
guiwin_update_slider(gw, orientation);
}
if ((redraw != NULL) && (redraw->g_h > 0)) {
guiwin_send_redraw(gw, redraw);
}
}
static short preproc_wm(GUIWIN * gw, EVMULT_OUT *ev_out, short msg[8])
{
GRECT g, g_ro, g2;
short retval = 1;
int val = 1, old_val;
struct guiwin_scroll_info_s *slid;
switch(msg[0]) {
case WM_HSLID:
guiwin_get_grect(gw, GUIWIN_AREA_CONTENT, &g);
wind_set(gw->handle, WF_HSLIDE, msg[4], 0, 0, 0);
slid = guiwin_get_scroll_info(gw);
val = (float)(slid->x_units-(g.g_w/slid->x_unit_px))/1000*(float)msg[4];
if(val != slid->x_pos) {
if (val < slid->x_pos) {
val = -(MAX(0, slid->x_pos-val));
}
else {
val = val-slid->x_pos;
}
preproc_scroll(gw, GUIWIN_HSLIDER, val, false);
}
break;
case WM_VSLID:
guiwin_get_grect(gw, GUIWIN_AREA_CONTENT, &g);
wind_set(gw->handle, WF_VSLIDE, msg[4], 0, 0, 0);
slid = guiwin_get_scroll_info(gw);
val = (float)(slid->y_units-(g.g_h/slid->y_unit_px))/1000*(float)msg[4];
if(val != slid->y_pos) {
if (val < slid->y_pos) {
val = -(slid->y_pos - val);
}
else {
val = val -slid->y_pos;
}
preproc_scroll(gw, GUIWIN_VSLIDER, val, false);
}
break;
case WM_ARROWED:
if((gw->flags & GW_FLAG_CUSTOM_SCROLLING) == 0) {
slid = guiwin_get_scroll_info(gw);
guiwin_get_grect(gw, GUIWIN_AREA_CONTENT, &g);
g_ro = g;
switch(msg[4]) {
case WA_UPPAGE:
/* scroll page up */
preproc_scroll(gw, GUIWIN_VSLIDER, -(g.g_h/slid->y_unit_px),
true);
break;
case WA_UPLINE:
/* scroll line up */
preproc_scroll(gw, GUIWIN_VSLIDER, -1, true);
break;
case WA_DNPAGE:
/* scroll page down */
preproc_scroll(gw, GUIWIN_VSLIDER, g.g_h/slid->y_unit_px,
true);
break;
case WA_DNLINE:
/* scroll line down */
preproc_scroll(gw, GUIWIN_VSLIDER, +1, true);
break;
case WA_LFPAGE:
/* scroll page left */
preproc_scroll(gw, GUIWIN_HSLIDER, -(g.g_w/slid->x_unit_px),
true);
break;
case WA_LFLINE:
/* scroll line left */
preproc_scroll(gw, GUIWIN_HSLIDER, -1,
true);
break;
case WA_RTPAGE:
/* scroll page right */
preproc_scroll(gw, GUIWIN_HSLIDER, (g.g_w/slid->x_unit_px),
true);
break;
case WA_RTLINE:
/* scroll line right */
preproc_scroll(gw, GUIWIN_HSLIDER, 1,
true);
break;
default:
break;
}
}
break;
case WM_TOPPED:
wind_set(gw->handle, WF_TOP, 1, 0, 0, 0);
break;
case WM_MOVED:
wind_get_grect(gw->handle, WF_CURRXYWH, &g);
wind_set(gw->handle, WF_CURRXYWH, msg[4], msg[5], g.g_w, g.g_h);
break;
case WM_SIZED:
case WM_REPOSED:
wind_get_grect(gw->handle, WF_CURRXYWH, &g);
wind_set(gw->handle, WF_CURRXYWH, g.g_x, g.g_y, msg[6], msg[7]);
if((gw->flags & GW_FLAG_CUSTOM_SCROLLING) == 0) {
if(guiwin_update_slider(gw, GUIWIN_VH_SLIDER)) {
guiwin_send_redraw(gw, NULL);
}
}
break;
case WM_FULLED:
wind_get_grect(gw->handle, WF_FULLXYWH, &g);
wind_get_grect(gw->handle, WF_CURRXYWH, &g2);
if(g.g_w == g2.g_w && g.g_h == g2.g_h){
wind_get_grect(gw->handle, WF_PREVXYWH, &g);
}
wind_set_grect(gw->handle, WF_CURRXYWH, &g);
if((gw->flags & GW_FLAG_CUSTOM_SCROLLING) == 0) {
if(guiwin_update_slider(gw, GUIWIN_VH_SLIDER)) {
guiwin_send_redraw(gw, NULL);
}
}
break;
case WM_ICONIFY:
wind_set(gw->handle, WF_ICONIFY, msg[4], msg[5], msg[6], msg[7]);
gw->state |= GW_STATUS_ICONIFIED;
break;
case WM_UNICONIFY:
wind_set(gw->handle, WF_UNICONIFY, msg[4], msg[5], msg[6], msg[7]);
gw->state &= ~(GW_STATUS_ICONIFIED);
break;
case WM_SHADED:
gw->state |= GW_STATUS_SHADED;
break;
case WM_UNSHADED:
gw->state &= ~(GW_STATUS_SHADED);
break;
case WM_REDRAW:
if ((gw->flags & GW_FLAG_TOOLBAR_REDRAW)
&& (gw->flags & GW_FLAG_CUSTOM_TOOLBAR) == 0) {
g.g_x = msg[4];
g.g_y = msg[5];
g.g_w = msg[6];
g.g_h = msg[7];
guiwin_toolbar_redraw(gw, &g);
}
break;
default:
retval = 0;
break;
}
return(retval);
}
short guiwin_dispatch_event(EVMULT_IN *ev_in, EVMULT_OUT *ev_out, short msg[8])
{
GUIWIN *dest;
short retval = 0;
bool handler_called = false;
if( (ev_out->emo_events & MU_MESAG) != 0 ) {
DEBUG_PRINT(("guiwin_handle_event_multi_fast: %d\n", msg[0]));
switch (msg[0]) {
case WM_REDRAW:
case WM_CLOSED:
case WM_TOPPED:
case WM_ARROWED:
case WM_HSLID:
case WM_VSLID:
case WM_FULLED:
case WM_SIZED:
case WM_REPOSED:
case WM_MOVED:
case WM_NEWTOP:
case WM_UNTOPPED:
case WM_ONTOP:
case WM_BOTTOM:
case WM_ICONIFY:
case WM_UNICONIFY:
case WM_ALLICONIFY:
case WM_TOOLBAR:
case AP_DRAGDROP:
case AP_TERM:
case AP_TFAIL:
dest = guiwin_find(msg[3]);
if (dest) {
DEBUG_PRINT(("Found WM_ dest: %p (%d), flags: %d, cb: %p\n", dest, dest->handle, dest->flags, dest->handler_func));
if (dest->flags&GW_FLAG_PREPROC_WM) {
retval = preproc_wm(dest, ev_out, msg);
if(((retval == 0)||(dest->flags&GW_FLAG_RECV_PREPROC_WM))) {
retval = dest->handler_func(dest, ev_out, msg);
handler_called = true;
}
} else {
if (dest->handler_func) {
retval = dest->handler_func(dest, ev_out, msg);
handler_called = true;
}
}
}
break;
}
} else {
short info[4];
wind_get( 0, WF_TOP, &info[0], &info[1], &info[2], &info[3]);
if(info[0] != 0 && info[1] == gl_apid) {
dest = guiwin_find(info[0]);
if(dest == NULL || dest->handler_func == NULL)
return(0);
if( (ev_out->emo_events & MU_BUTTON) != 0) {
DEBUG_PRINT(("Found MU_BUTTON dest: %p (%d), flags: %d, cb: %p\n", dest, dest->handle, dest->flags, dest->handler_func));
// toolbar handling:
if((dest->flags & GW_FLAG_CUSTOM_TOOLBAR) == 0
&& dest->toolbar != NULL) {
GRECT tb_area;
guiwin_get_grect(dest, GUIWIN_AREA_TOOLBAR, &tb_area);
if (POINT_WITHIN(ev_out->emo_mouse.p_x,
ev_out->emo_mouse.p_y, tb_area)) {
// send WM_TOOLBAR message
dest->toolbar[dest->toolbar_idx].ob_x = tb_area.g_x;
dest->toolbar[dest->toolbar_idx].ob_y = tb_area.g_y;
short obj_idx = objc_find(dest->toolbar,
dest->toolbar_idx, 8,
ev_out->emo_mouse.p_x,
ev_out->emo_mouse.p_y);
short msg_out[8] = {WM_TOOLBAR, gl_apid, 0, dest->handle,
obj_idx, ev_out->emo_mclicks, ev_out->emo_kmeta, 0
};
if (((dest->flags & GW_FLAG_CUSTOM_TOOLBAR) == 0)
&& obj_idx > 0) {
dest->toolbar[obj_idx].ob_state |= OS_SELECTED;
// TODO: optimize redraw by setting the object clip:
guiwin_toolbar_redraw(dest, NULL);
}
short oldevents = ev_out->emo_events;
ev_out->emo_events = MU_MESAG;
// notify the window about toolbar click:
dest->handler_func(dest, ev_out, msg_out);
handler_called=true;
ev_out->emo_events = oldevents;
retval = 1;
}
}
}
if (handler_called==false) {
dest->handler_func(dest, ev_out, msg);
}
}
}
return(retval);
}
short guiwin_init(void)
{
if(v_vdi_h == -1) {
short dummy;
static short work_in[12] = {1,1,1,1,1,1,1,1,1,1,2,1};
v_vdi_h=graf_handle(&dummy, &dummy, &dummy, &dummy);
v_opnvwk(work_in, &v_vdi_h, work_out);
}
return(0);
}
void guiwin_exit(void)
{
v_clsvwk(v_vdi_h);
}
GUIWIN * guiwin_add(short handle, uint32_t flags, guiwin_event_handler_f cb)
{
GUIWIN *win = calloc(sizeof(GUIWIN),1);
assert(win!=NULL);
DEBUG_PRINT(("guiwin_add: %d, %p, cb: %p\n", handle, win, cb));
win->handle = handle;
win->handler_func = cb;
win->flags = flags;
if (winlist == NULL) {
winlist = win;
win->next = NULL;
win->prev = NULL;
} else {
GUIWIN *tmp = winlist;
while( tmp->next != NULL ) {
tmp = tmp->next;
}
tmp->next = win;
win->prev = tmp;
win->next = NULL;
}
return(win);
}
GUIWIN *guiwin_find(short handle)
{
GUIWIN *g;
DEBUG_PRINT(("guiwin search handle: %d\n", handle));
for( g = winlist; g != NULL; g=g->next ) {
if(g->handle == handle) {
DEBUG_PRINT(("guiwin found handle: %p\n", g));
return(g);
}
}
return(NULL);
}
GUIWIN *guiwin_validate_ptr(GUIWIN *win)
{
GUIWIN *g;
for( g = winlist; g != NULL; g=g->next ) {
DEBUG_PRINT(("guiwin guiwin_validate_ptr check: %p\n", g));
if(g == win) {
DEBUG_PRINT(("guiwin_validate_ptr valid: %p\n", g));
return(g);
}
}
return(NULL);
}
short guiwin_remove(GUIWIN *win)
{
win = guiwin_validate_ptr(win);
if (win == NULL)
return(-1);
/* unlink the window: */
if(win->prev != NULL ) {
win->prev->next = win->next;
} else {
winlist = win->next;
}
if (win->next != NULL) {
win->next->prev = win->prev;
}
DEBUG_PRINT(("guiwin free: %p\n", win));
free(win);
return(0);
}
void guiwin_get_grect(GUIWIN *win, enum guwin_area_e mode, GRECT *dest)
{
wind_get_grect(win->handle, WF_WORKXYWH, dest);
if (mode == GUIWIN_AREA_CONTENT) {
GRECT tb_area;
guiwin_get_grect(win, GUIWIN_AREA_TOOLBAR, &tb_area);
if (win->flags & GW_FLAG_HAS_VTOOLBAR) {
dest->g_x += tb_area.g_w;
dest->g_w -= tb_area.g_w;
} else {
dest->g_y += tb_area.g_h;
dest->g_h -= tb_area.g_h;
}
} else if (mode == GUIWIN_AREA_TOOLBAR) {
if (win->toolbar != NULL) {
if (win->flags & GW_FLAG_HAS_VTOOLBAR) {
dest->g_w = win->toolbar[win->toolbar_idx].ob_width;
} else {
dest->g_h = win->toolbar[win->toolbar_idx].ob_height;
}
} else {
dest->g_h = 0;
dest->g_w = 0;
}
}
}
bool guiwin_update_slider(GUIWIN *win, short mode)
{
GRECT viewport;
struct guiwin_scroll_info_s * slid;
unsigned long size, pos;
int old_x, old_y;
short handle = guiwin_get_handle(win);
guiwin_get_grect(win, GUIWIN_AREA_CONTENT, &viewport);
slid = guiwin_get_scroll_info(win);
old_x = slid->x_pos;
old_y = slid->y_pos;
if((mode & GUIWIN_VSLIDER) && (slid->y_unit_px > 0)) {
if ( slid->y_units < (long)viewport.g_h/slid->y_unit_px) {
size = 1000L;
} else
size = MAX( 50L, (unsigned long)viewport.g_h*1000L/
(unsigned long)(slid->y_unit_px*slid->y_units));
wind_set(handle, WF_VSLSIZE, (int)size, 0, 0, 0);
if (slid->y_units > (long)viewport.g_h/slid->y_unit_px) {
pos = (unsigned long)slid->y_pos *1000L/
(unsigned long)(slid->y_units-viewport.g_h/slid->y_unit_px);
wind_set(handle, WF_VSLIDE, (int)pos, 0, 0, 0);
} else if (slid->y_pos) {
slid->y_pos = 0;
wind_set(handle, WF_VSLIDE, 0, 0, 0, 0);
}
}
if((mode & GUIWIN_HSLIDER) && (slid->x_unit_px > 0)) {
if ( slid->x_units < (long)viewport.g_w/slid->x_unit_px)
size = 1000L;
else
size = MAX( 50L, (unsigned long)viewport.g_w*1000L/
(unsigned long)(slid->x_unit_px*slid->x_units));
wind_set(handle, WF_HSLSIZE, (int)size, 0, 0, 0);
if( slid->x_units > (long)viewport.g_w/slid->x_unit_px) {
pos = (unsigned long)slid->x_pos*1000L/
(unsigned long)(slid->x_units-viewport.g_w/slid->x_unit_px);
wind_set(handle, WF_HSLIDE, (int)pos, 0, 0, 0);
} else if (slid->x_pos) {
slid->x_pos = 0;
wind_set(handle, WF_HSLIDE, 0, 0, 0, 0);
}
}
if(old_x != slid->x_pos || old_y != slid->y_pos) {
return(true);
}
return(false);
}
short guiwin_get_handle(GUIWIN *win)
{
return(win->handle);
}
VdiHdl guiwin_get_vdi_handle(GUIWIN *win)
{
return(v_vdi_h);
}
uint32_t guiwin_get_state(GUIWIN *win)
{
return(win->state);
}
void guiwin_set_event_handler(GUIWIN *win,guiwin_event_handler_f cb)
{
win->handler_func = cb;
}
void guiwin_set_toolbar(GUIWIN *win, OBJECT *toolbar, short idx, uint32_t flags)
{
win->toolbar = toolbar;
win->toolbar_idx = idx;
if(flags & GW_FLAG_HAS_VTOOLBAR) {
win->flags |= GW_FLAG_HAS_VTOOLBAR;
}
}
void guiwin_set_user_data(GUIWIN *win, void *data)
{
win->user_data = data;
}
void *guiwin_get_user_data(GUIWIN *win)
{
return(win->user_data);
}
struct guiwin_scroll_info_s *guiwin_get_scroll_info(GUIWIN *win) {
return(&win->scroll_info);
}
void guiwin_send_redraw(GUIWIN *win, GRECT *area)
{
short msg[8];
GRECT work;
if(area == NULL) {
guiwin_get_grect(win, GUIWIN_AREA_WORK, &work);
area = &work;
}
msg[0] = WM_REDRAW;
msg[1] = gl_apid;
msg[2] = 0;
msg[3] = win->handle;
msg[4] = area->g_x;
msg[5] = area->g_y;
msg[6] = area->g_w;
msg[7] = area->g_h;
appl_write(gl_apid, 16, &msg);
}
bool guiwin_has_intersection(GUIWIN *win, GRECT *work)
{
GRECT area, mywork;
bool retval = true;
if (work == NULL) {
guiwin_get_grect(win, GUIWIN_AREA_CONTENT, &mywork);
work = &mywork;
}
wind_get_grect(win->handle, WF_FIRSTXYWH, &area);
while (area.g_w && area.g_w) {
//GRECT * ptr = &area;
if (RC_WITHIN(work, &area)) {
retval = false;
}
wind_get_grect(win->handle, WF_NEXTXYWH, &area);
}
return(retval);
}
void guiwin_toolbar_redraw(GUIWIN *gw, GRECT *clip)
{
GRECT tb_area, tb_area_ro, g;
guiwin_get_grect(gw, GUIWIN_AREA_TOOLBAR, &tb_area_ro);
if(clip == NULL) {
clip = &tb_area_ro;
}
tb_area = tb_area_ro;
if(rc_intersect(clip, &tb_area)) {
// Update object position:
gw->toolbar[gw->toolbar_idx].ob_x = tb_area_ro.g_x;
gw->toolbar[gw->toolbar_idx].ob_width = tb_area_ro.g_w;
gw->toolbar[gw->toolbar_idx].ob_y = tb_area_ro.g_y;
gw->toolbar[gw->toolbar_idx].ob_height = tb_area_ro.g_h;
wind_get_grect(gw->handle, WF_FIRSTXYWH, &g);
while (g.g_h > 0 || g.g_w > 0) {
if(rc_intersect(&tb_area, &g)) {
objc_draw(gw->toolbar, gw->toolbar_idx, 8, g.g_x, g.g_y,
g.g_w, g.g_h);
}
wind_get_grect(gw->handle, WF_NEXTXYWH, &g);
}
}
}
void guiwin_clear(GUIWIN *win)
{
GRECT area, g;
short pxy[4];
VdiHdl vh;
vh = guiwin_get_vdi_handle(win);
if(win->state & GW_STATUS_ICONIFIED){
// also clear the toolbar area when iconified:
guiwin_get_grect(win, GUIWIN_AREA_WORK, &area);
} else {
guiwin_get_grect(win, GUIWIN_AREA_CONTENT, &area);
}
vsf_interior(vh, FIS_SOLID);
vsf_color(vh, 0);
vswr_mode(vh, MD_REPLACE);
wind_get_grect(win->handle, WF_FIRSTXYWH, &g);
while (g.g_h > 0 || g.g_w > 0) {
if(rc_intersect(&area, &g)) {
pxy[0] = g.g_x;
pxy[1] = g.g_y;
pxy[2] = g.g_x+g.g_w-1;
pxy[3] = g.g_y+g.g_h-1;
v_bar(vh, pxy);
}
wind_get_grect(win->handle, WF_NEXTXYWH, &g);
}
}
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