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netsurf/atari/gemtk/guiwin.c
Ole Loots 076361e1e1 Match return value with function prototypes.
2013-04-19 21:20:07 +02:00

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/*
* Copyright 2012 Ole Loots <ole@monochrom.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <stdbool.h>
#include <assert.h>
#include <gem.h>
#include <gemx.h>
#include <cflib.h>
#include "gemtk.h"
//#define DEBUG_PRINT(x) printf x
#define DEBUG_PRINT(x)
struct gemtk_window_s {
/** The AES handle of the window */
short handle;
/** the generic event handler function for events passed to the client */
gemtk_wm_event_handler_f handler_func;
/** The toolbar redraw function, if any */
gemtk_wm_redraw_f toolbar_redraw_func;
/** window configuration */
uint32_t flags;
/** window state */
uint32_t state;
/** AES Tree used as toolbar */
OBJECT *toolbar;
/** Current edit object selected in the toolbar, if any. */
short toolbar_edit_obj;
/** Current selected object in the toolbar, if any. */
short toolbar_focus_obj;
/** Describes the start of the toolbar tree (usually 0) */
short toolbar_idx;
/** depending on the flag GEMTK_WM_FLAG_HAS_VTOOLBAR this defines the toolbar
height or the toolbar width (GEMTK_WM_FLAG_HAS_VTOOLBAR means width).
*/
short toolbar_size;
/** AES Object tree to be used for windowed dialogs. */
OBJECT *form;
/** Current form edit object, if any. */
short form_edit_obj;
/** Current form focus object, if any */
short form_focus_obj;
/** Describes the start of the form tree */
short form_idx;
/** Scroll state */
struct gemtk_wm_scroll_info_s scroll_info;
/** Arbitary data set by the user */
void *user_data;
/** linked list items */
struct gemtk_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 = gemtk_wm_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);
if(!rc_intersect(&g, rect)){
goto error;
}
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);
error:
graf_mouse(M_ON, 0L);
wind_update(END_UPDATE);
}
/**
* Handles common events.
* returns 0 when the event was not handled, 1 otherwise.
*/
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 gemtk_wm_scroll_info_s *slid;
switch(msg[0]) {
case WM_HSLID:
gemtk_wm_get_grect(gw, GEMTK_WM_AREA_CONTENT, &g);
wind_set(gw->handle, WF_HSLIDE, msg[4], 0, 0, 0);
slid = gemtk_wm_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;
}
gemtk_wm_scroll(gw, GEMTK_WM_HSLIDER, val, false);
}
break;
case WM_VSLID:
gemtk_wm_get_grect(gw, GEMTK_WM_AREA_CONTENT, &g);
wind_set(gw->handle, WF_VSLIDE, msg[4], 0, 0, 0);
slid = gemtk_wm_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;
}
gemtk_wm_scroll(gw, GEMTK_WM_VSLIDER, val, false);
}
break;
case WM_ARROWED:
if((gw->flags & GEMTK_WM_FLAG_CUSTOM_SCROLLING) == 0) {
slid = gemtk_wm_get_scroll_info(gw);
gemtk_wm_get_grect(gw, GEMTK_WM_AREA_CONTENT, &g);
g_ro = g;
switch(msg[4]) {
case WA_UPPAGE:
/* scroll page up */
gemtk_wm_scroll(gw, GEMTK_WM_VSLIDER, -(g.g_h/slid->y_unit_px),
true);
break;
case WA_UPLINE:
/* scroll line up */
gemtk_wm_scroll(gw, GEMTK_WM_VSLIDER, -1, true);
break;
case WA_DNPAGE:
/* scroll page down */
gemtk_wm_scroll(gw, GEMTK_WM_VSLIDER, g.g_h/slid->y_unit_px,
true);
break;
case WA_DNLINE:
/* scroll line down */
gemtk_wm_scroll(gw, GEMTK_WM_VSLIDER, +1, true);
break;
case WA_LFPAGE:
/* scroll page left */
gemtk_wm_scroll(gw, GEMTK_WM_HSLIDER, -(g.g_w/slid->x_unit_px),
true);
break;
case WA_LFLINE:
/* scroll line left */
gemtk_wm_scroll(gw, GEMTK_WM_HSLIDER, -1,
true);
break;
case WA_RTPAGE:
/* scroll page right */
gemtk_wm_scroll(gw, GEMTK_WM_HSLIDER, (g.g_w/slid->x_unit_px),
true);
break;
case WA_RTLINE:
/* scroll line right */
gemtk_wm_scroll(gw, GEMTK_WM_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);
if (gw->form) {
gemtk_wm_get_grect(gw, GEMTK_WM_AREA_CONTENT, &g);
slid = gemtk_wm_get_scroll_info(gw);
gw->form[gw->form_idx].ob_x = g.g_x -
(slid->x_pos * slid->x_unit_px);
gw->form[gw->form_idx].ob_y = g.g_y -
(slid->y_pos * slid->y_unit_px);
}
break;
case WM_SIZED:
case WM_REPOSED:
wind_get_grect(gw->handle, WF_FULLXYWH, &g2);
wind_get_grect(gw->handle, WF_CURRXYWH, &g);
g.g_w = MIN(msg[6], g2.g_w);
g.g_h = MIN(msg[7], g2.g_h);
if(g2.g_w != g.g_w || g2.g_h != g.g_h) {
wind_set(gw->handle, WF_CURRXYWH, g.g_x, g.g_y, g.g_w, g.g_h);
if((gw->flags & GEMTK_WM_FLAG_CUSTOM_SCROLLING) == 0) {
if(gemtk_wm_update_slider(gw, GEMTK_WM_VH_SLIDER)) {
gemtk_wm_exec_redraw(gw, NULL);
}
}
}
break;
case WM_FULLED:
wind_get_grect(DESKTOP_HANDLE, WF_WORKXYWH, &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 & GEMTK_WM_FLAG_CUSTOM_SCROLLING) == 0) {
if(gemtk_wm_update_slider(gw, GEMTK_WM_VH_SLIDER)) {
gemtk_wm_exec_redraw(gw, NULL);
}
}
break;
case WM_ICONIFY:
wind_set(gw->handle, WF_ICONIFY, msg[4], msg[5], msg[6], msg[7]);
gw->state |= GEMTK_WM_STATUS_ICONIFIED;
break;
case WM_UNICONIFY:
wind_set(gw->handle, WF_UNICONIFY, msg[4], msg[5], msg[6], msg[7]);
gw->state &= ~(GEMTK_WM_STATUS_ICONIFIED);
break;
case WM_SHADED:
gw->state |= GEMTK_WM_STATUS_SHADED;
break;
case WM_UNSHADED:
gw->state &= ~(GEMTK_WM_STATUS_SHADED);
break;
case WM_REDRAW:
if ((gw->flags & GEMTK_WM_FLAG_CUSTOM_TOOLBAR) == 0
&& (gw->toolbar != NULL)) {
g.g_x = msg[4];
g.g_y = msg[5];
g.g_w = msg[6];
g.g_h = msg[7];
gemtk_wm_toolbar_redraw(gw, WM_REDRAW, &g);
}
if (gw->form != NULL) {
g.g_x = msg[4];
g.g_y = msg[5];
g.g_w = msg[6];
g.g_h = msg[7];
gemtk_wm_form_redraw(gw, &g);
}
break;
default:
retval = 0;
break;
}
return(retval);
}
/**
* Preprocess mouse events
*/
static short preproc_mu_button(GUIWIN * gw, EVMULT_OUT *ev_out, short msg[8])
{
short retval = 0, obj_idx = 0;
DEBUG_PRINT(("preproc_mu_button\n"));
// toolbar handling:
if ((gw->flags & GEMTK_WM_FLAG_CUSTOM_TOOLBAR) == 0
&& gw->toolbar != NULL) {
GRECT tb_area;
gemtk_wm_get_grect(gw, GEMTK_WM_AREA_TOOLBAR, &tb_area);
if (POINT_WITHIN(ev_out->emo_mouse.p_x,
ev_out->emo_mouse.p_y, tb_area)) {
gw->toolbar[gw->toolbar_idx].ob_x = tb_area.g_x;
gw->toolbar[gw->toolbar_idx].ob_y = tb_area.g_y;
obj_idx = objc_find(gw->toolbar,
gw->toolbar_idx, 8,
ev_out->emo_mouse.p_x,
ev_out->emo_mouse.p_y);
gw->toolbar_focus_obj = obj_idx;
DEBUG_PRINT(("Toolbar index: %d\n", obj_idx));
if (obj_idx > -1
&& (gw->toolbar[obj_idx].ob_state & OS_DISABLED)== 0
&& ((gw->flags & GEMTK_WM_FLAG_CUSTOM_TOOLBAR) == 0)) {
uint16_t type = (gw->toolbar[obj_idx].ob_type & 0xFF);
uint16_t nextobj;
DEBUG_PRINT(("toolbar item type: %d, toolbar_edit_obj: %d\n",
type, gw->toolbar_edit_obj));
// Report mouse click to the tree:
retval = form_wbutton(gw->toolbar, gw->toolbar_focus_obj,
ev_out->emo_mclicks, &nextobj,
gw->handle);
if (nextobj == obj_idx
&& (type == G_FTEXT || type == G_FBOXTEXT)) {
gw->toolbar_edit_obj = obj_idx;
}
else {
gw->toolbar_edit_obj = -1;
}
}
// send WM_TOOLBAR message
short oldevents = ev_out->emo_events;
short msg_out[8] = {WM_TOOLBAR, gl_apid,
0, gw->handle,
obj_idx, ev_out->emo_mclicks,
ev_out->emo_kmeta, ev_out->emo_mbutton
};
ev_out->emo_events = MU_MESAG;
// notify the window about toolbar click:
gw->handler_func(gw, ev_out, msg_out);
ev_out->emo_events = oldevents;
retval = 1;
} else {
if (gw->toolbar_edit_obj != -1) {
gw->toolbar_edit_obj = -1;
}
}
}
if (gw->form != NULL) {
GRECT content_area;
struct gemtk_wm_scroll_info_s *slid;
DEBUG_PRINT(("preproc_mu_button: handling form click.\n"));
gemtk_wm_get_grect(gw, GEMTK_WM_AREA_CONTENT, &content_area);
if (POINT_WITHIN(ev_out->emo_mouse.p_x,
ev_out->emo_mouse.p_y, content_area)) {
slid = gemtk_wm_get_scroll_info(gw);
// adjust form position (considering window and scroll position):
gw->form[gw->form_idx].ob_x = content_area.g_x -
(slid->x_pos * slid->x_unit_px);
gw->form[gw->form_idx].ob_y = content_area.g_y -
(slid->y_pos * slid->y_unit_px);
obj_idx = objc_find(gw->form, gw->form_idx, 8,
ev_out->emo_mouse.p_x, ev_out->emo_mouse.p_y);
gw->form_focus_obj = obj_idx;
DEBUG_PRINT(("Window Form click, obj: %d\n", gw->form_focus_obj));
if (obj_idx > -1
&& (gw->form[obj_idx].ob_state & OS_DISABLED)== 0) {
uint16_t type = (gw->form[obj_idx].ob_type & 0xFF);
uint16_t nextobj;
DEBUG_PRINT(("type: %d\n", type));
retval = form_wbutton(gw->form, gw->form_focus_obj,
ev_out->emo_mclicks, &nextobj,
gw->handle);
if (nextobj == obj_idx
&& (type == G_FTEXT || type == G_FBOXTEXT)) {
gw->form_edit_obj = obj_idx;
}
else {
gw->form_edit_obj = -1;
}
short oldevents = ev_out->emo_events;
short msg_out[8] = { GEMTK_WM_WM_FORM_CLICK, gl_apid,
0, gw->handle,
gw->form_focus_obj, ev_out->emo_mclicks,
ev_out->emo_kmeta, 0
};
ev_out->emo_events = MU_MESAG;
// notify the window about form click:
gw->handler_func(gw, ev_out, msg_out);
ev_out->emo_events = oldevents;
retval = 1;
evnt_timer(150);
}
}
else {
gw->form_edit_obj = -1;
}
}
return(retval);
}
/**
* Preprocess keyboard events (for forms/toolbars)
*/
static short preproc_mu_keybd(GUIWIN * gw, EVMULT_OUT *ev_out, short msg[8])
{
short retval = 0;
if ((gw->toolbar != NULL) && (gw->toolbar_edit_obj > -1)) {
short next_edit_obj = gw->toolbar_edit_obj;
short next_char = -1;
short edit_idx;
short r;
DEBUG_PRINT(("%s, gw: %p, toolbar_edit_obj: %d\n", __FUNCTION__, gw,
gw->toolbar_edit_obj));
r = form_wkeybd(gw->toolbar, gw->toolbar_edit_obj, next_edit_obj,
ev_out->emo_kreturn,
&next_edit_obj, &next_char, gw->handle);
if (next_edit_obj != gw->toolbar_edit_obj) {
gemtk_wm_set_toolbar_edit_obj(gw, next_edit_obj,
ev_out->emo_kreturn);
} else {
if (next_char > 13) {
r = objc_wedit(gw->toolbar, gw->toolbar_edit_obj,
ev_out->emo_kreturn, &edit_idx,
EDCHAR, gw->handle);
}
}
//retval = 1;
/*gemtk_wm_send_msg(gw, GEMTK_WM_WM_FORM_KEY, gw->toolbar_edit_obj,
ev_out->emo_kreturn, 0, 0);*/
}
if((gw->form != NULL) && (gw->form_edit_obj > -1) ) {
short next_edit_obj = gw->form_edit_obj;
short next_char = -1;
short edit_idx;
short r;
r = form_wkeybd(gw->form, gw->form_edit_obj, next_edit_obj,
ev_out->emo_kreturn,
&next_edit_obj, &next_char, gw->handle);
if (next_edit_obj != gw->form_edit_obj) {
if(gw->form_edit_obj != -1) {
objc_wedit(gw->form, gw->form_edit_obj,
ev_out->emo_kreturn, &edit_idx,
EDEND, gw->handle);
}
gw->form_edit_obj = next_edit_obj;
objc_wedit(gw->form, gw->form_edit_obj,
ev_out->emo_kreturn, &edit_idx,
EDINIT, gw->handle);
} else {
if(next_char > 13)
r = objc_wedit(gw->form, gw->form_edit_obj,
ev_out->emo_kreturn, &edit_idx,
EDCHAR, gw->handle);
}
}
return(retval);
}
/**
* Default toolbar redraw function
*/
static void std_toolbar_redraw(GUIWIN *gw, uint16_t msg, GRECT *clip)
{
GRECT g, tb_area;
gemtk_wm_get_grect(gw, GEMTK_WM_AREA_TOOLBAR, &tb_area);
assert(gw->toolbar);
assert(gw->toolbar_idx >= 0);
// Update object position:
gw->toolbar[gw->toolbar_idx].ob_x = tb_area.g_x;
gw->toolbar[gw->toolbar_idx].ob_y = tb_area.g_y;
gw->toolbar[gw->toolbar_idx].ob_width = tb_area.g_w;
gw->toolbar[gw->toolbar_idx].ob_height = tb_area.g_h;
wind_get_grect(gw->handle, WF_FIRSTXYWH, &g);
while (g.g_h > 0 || g.g_w > 0) {
if(rc_intersect(clip, &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);
}
}
/**
* Event Dispatcher function. The guiwin API doesn't own an event loop,
* so you have to inform it for every event that you want it to handle.
*/
short gemtk_wm_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(("gemtk_wm_handle_event_multi_fast: %d (%x)\n", msg[0],
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 = gemtk_wm_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&GEMTK_WM_FLAG_PREPROC_WM) {
retval = preproc_wm(dest, ev_out, msg);
if(((retval == 0)||(dest->flags&GEMTK_WM_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 h_aes;
h_aes = wind_find(ev_out->emo_mouse.p_x, ev_out->emo_mouse.p_y);
if(h_aes > 0 && (ev_out->emo_events != MU_TIMER)) {
dest = gemtk_wm_find(h_aes);
if (dest == NULL || dest->handler_func == NULL)
return(0);
DEBUG_PRINT(("Found Event receiver GUIWIN: %p (%d), flags: %d, cb: %p\n",
dest, dest->handle, dest->flags, dest->handler_func));
if ((ev_out->emo_events & MU_BUTTON) != 0) {
DEBUG_PRINT(("gemtk_wm_handle_event_multi_fast: MU_BUTTON -> "
"%d / %d\n", ev_out->emo_mouse.p_x,
ev_out->emo_mouse.p_y));
retval = preproc_mu_button(dest, ev_out, msg);
if(retval != 0) {
handler_called = true;
}
}
if ((ev_out->emo_events & MU_KEYBD)) {
DEBUG_PRINT(("gemtk_wm_handle_event_multi_fast: MU_KEYBD -> %x\n",
ev_out->emo_kreturn));
retval = preproc_mu_keybd(dest, ev_out, msg);
if(retval != 0) {
handler_called = true;
}
}
if (handler_called==false) {
retval = dest->handler_func(dest, ev_out, msg);
}
}
}
return(retval);
}
/**
* Initialises the guiwin API
*/
short gemtk_wm_init(void)
{
if(v_vdi_h == -1) {
short dummy;
short work_in[12] = {Getrez()+2,1,1,1,1,1,1,1,1,1,2,1};
v_vdi_h=graf_handle(&dummy, &dummy, &dummy, &dummy);
v_opnvwk(work_in, &v_vdi_h, work_out);
}
return(0);
}
void gemtk_wm_exit(void)
{
v_clsvwk(v_vdi_h);
}
/**
* Adds and AES handle to the guiwin list and creates and GUIWIN management
* structure.
*
* \param handle The AES handle
* \param flags Creation flags, configures how the AES window is handled
* \param cb event handler function for that window
*/
GUIWIN * gemtk_wm_add(short handle, uint32_t flags, gemtk_wm_event_handler_f cb)
{
GUIWIN *win = calloc(sizeof(GUIWIN),1);
assert(win!=NULL);
DEBUG_PRINT(("gemtk_wm_add: %d, %p, cb: %p\n", handle, win, cb));
win->handle = handle;
win->handler_func = cb;
win->flags = flags;
gemtk_wm_link(win);
DEBUG_PRINT(("Added guiwin: %p, tb: %p\n", win, win->toolbar));
return(win);
}
/**
* Returns an GUIWIN* for AES handle, when that AES window is managed by guiwin
*/
GUIWIN *gemtk_wm_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);
}
/**
* Check's if the pointer is managed by the guiwin API.
*/
GUIWIN *gemtk_wm_validate_ptr(GUIWIN *win)
{
GUIWIN *g;
for( g = winlist; g != NULL; g=g->next ) {
DEBUG_PRINT(("guiwin gemtk_wm_validate_ptr check: %p\n", g));
if(g == win) {
DEBUG_PRINT(("gemtk_wm_validate_ptr valid: %p\n", g));
return(g);
}
}
return(NULL);
}
/**
* Add the GUIWIN to the list of handled windows.
*/
GUIWIN *gemtk_wm_link(GUIWIN *win)
{
/* Make sure the window is not linked: */
GUIWIN *win_val = gemtk_wm_validate_ptr(win);
if(win_val){
DEBUG_PRINT(("GUIWIN %p is already linked!\n", win));
return(NULL);
}
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);
}
/**
* Remove the GUIWIN from the list of handled windows.
*/
GUIWIN *gemtk_wm_unlink(GUIWIN *win)
{
GUIWIN * win_val;
/* Make sure the window is linked: */
win_val = gemtk_wm_validate_ptr(win);
if (win_val == NULL){
DEBUG_PRINT(("GUIWIN %p is not linked!\n", win));
return(NULL);
}
/* 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;
}
return(win);
}
/**
* Remove an GUIWIN from the list of managed windows and free the GUIWIN.
* Call this when the AES window is closed or deleted.
*/
short gemtk_wm_remove(GUIWIN *win)
{
gemtk_wm_unlink(win);
DEBUG_PRINT(("guiwin free: %p\n", win));
free(win);
return(0);
}
/** Calculate & get a well known area within the GUIWIN.
* \param win The GUIWIN ptr.
* \param mode Specifies the area to retrieve.
* \param dest The calculated rectangle.
*/
void gemtk_wm_get_grect(GUIWIN *win, enum guwin_area_e mode, GRECT *dest)
{
assert(win != NULL);
wind_get_grect(win->handle, WF_WORKXYWH, dest);
if (mode == GEMTK_WM_AREA_CONTENT) {
GRECT tb_area;
gemtk_wm_get_grect(win, GEMTK_WM_AREA_TOOLBAR, &tb_area);
if (win->flags & GEMTK_WM_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 == GEMTK_WM_AREA_TOOLBAR) {
if (win->toolbar) {
if (win->flags & GEMTK_WM_FLAG_HAS_VTOOLBAR) {
dest->g_w = win->toolbar_size;
} else {
dest->g_h = win->toolbar_size;
}
}
else {
dest->g_w = 0;
dest->g_h = 0;
}
}
}
/**
* Scroll the content area (GEMTK_WM_AREA_CONTENT) in the specified dimension
* (GEMTK_WM_VSLIDER, GEMTK_WM_HSLIDER)
* \param win The GUIWIN
* \param orientation GEMTK_WM_VSLIDER or GEMTK_WM_HSLIDER
* \param units the amout to scroll (pass negative values to scroll up)
* \param refresh Sliders will be updated when this flag is set
*/
void gemtk_wm_scroll(GUIWIN *win, short orientation, int units, bool refresh)
{
struct gemtk_wm_scroll_info_s *slid = gemtk_wm_get_scroll_info(win);
int oldpos = 0, newpos = 0, vis_units=0, pix = 0;
int abs_pix = 0;
GRECT *redraw=NULL, g, g_ro;
gemtk_wm_get_grect(win, GEMTK_WM_AREA_CONTENT, &g);
g_ro = g;
if (orientation == GEMTK_WM_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(newpos < 0) {
newpos = slid->y_pos = 0;
}
if(oldpos == newpos)
return;
if (units>=vis_units || gemtk_wm_has_intersection(win, &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(win, &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(win, &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(newpos < 0) {
newpos = slid->x_pos = 0;
}
if(oldpos == newpos)
return;
if (units>=vis_units || gemtk_wm_has_intersection(win, &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(win, &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(win, &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) {
gemtk_wm_update_slider(win, orientation);
}
if ((redraw != NULL) && (redraw->g_h > 0)) {
gemtk_wm_exec_redraw(win, redraw);
}
}
/**
* Refresh the sliders of the window.
* \param win the GUIWIN
* \param mode bitmask, valid bits: GEMTK_WM_VSLIDER, GEMTK_WM_HSLIDER
*/
bool gemtk_wm_update_slider(GUIWIN *win, short mode)
{
GRECT viewport;
struct gemtk_wm_scroll_info_s * slid;
unsigned long size, pos;
int old_x, old_y;
short handle = gemtk_wm_get_handle(win);
gemtk_wm_get_grect(win, GEMTK_WM_AREA_CONTENT, &viewport);
slid = gemtk_wm_get_scroll_info(win);
old_x = slid->x_pos;
old_y = slid->y_pos;
// TODO: check if the window has sliders of that direction...?
if((mode & GEMTK_WM_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 & GEMTK_WM_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);
}
/**
* Return the AES handle for the GUIWIN.
*/
short gemtk_wm_get_handle(GUIWIN *win)
{
return(win->handle);
}
/**
* Return the VDI handle for an GUIWIN.
*/
VdiHdl gemtk_wm_get_vdi_handle(GUIWIN *win)
{
return(v_vdi_h);
}
/**
* Returns the state bitmask of the window
*/
uint32_t gemtk_wm_get_state(GUIWIN *win)
{
return(win->state);
}
/**
* Set and new event handler function.
*/
void gemtk_wm_set_event_handler(GUIWIN *win,gemtk_wm_event_handler_f cb)
{
win->handler_func = cb;
}
/**
* Configure the window so that it shows an toolbar or at least reserves
* an area to draw an toolbar.
* \param win The GUIWIN
* \param toolbar the AES form
* \param idx index within the toolbar tree (0 in most cases...)
* \param flags optional configuration flags
*/
//TODO: document flags
void gemtk_wm_set_toolbar(GUIWIN *win, OBJECT *toolbar, short idx, uint32_t flags)
{
win->toolbar = toolbar;
win->toolbar_idx = idx;
win->toolbar_edit_obj = -1;
if (flags & GEMTK_WM_FLAG_HAS_VTOOLBAR) {
win->flags |= GEMTK_WM_FLAG_HAS_VTOOLBAR;
win->toolbar_size = win->toolbar[idx].ob_width;
}
else {
win->toolbar_size = win->toolbar[idx].ob_height;
}
gemtk_wm_set_toolbar_redraw_func(win, std_toolbar_redraw);
}
/** Update width/height of the toolbar region
* \param win the GUIWIN
* \param s the width or height, depending on the flag GEMTK_WM_FLAG_HAS_VTOOLBAR
*/
void gemtk_wm_set_toolbar_size(GUIWIN *win, uint16_t s)
{
win->toolbar_size = s;
}
short getm_wm_get_toolbar_edit_obj(GUIWIN *win)
{
return(win->toolbar_edit_obj);
}
/** Set the current active edit object */
void gemtk_wm_set_toolbar_edit_obj(GUIWIN *win, uint16_t obj, short kreturn)
{
short edit_idx;
DEBUG_PRINT(("%s, win: %p, obj: %d, kret: %d\n", __FUNCTION__,
win, obj, kreturn));
if (obj != win->toolbar_edit_obj) {
DEBUG_PRINT(("%s, current edit obj: %d\n", __FUNCTION__,
win->toolbar_edit_obj));
if(win->toolbar_edit_obj != -1) {
objc_wedit(win->toolbar, win->toolbar_edit_obj, kreturn, &edit_idx,
EDEND, win->handle);
}
win->toolbar_edit_obj = obj;
objc_wedit(win->toolbar, win->toolbar_edit_obj, kreturn, &edit_idx,
EDINIT, win->handle);
} else {
DEBUG_PRINT(("%s, nothing to do!\n", __FUNCTION__));
}
}
/** Set an custom toolbar redraw function which is called instead of
* default drawing routine.
* \param win the GUIWIN
* \param func the custom redraw function
*/
void gemtk_wm_set_toolbar_redraw_func(GUIWIN *win, gemtk_wm_redraw_f func)
{
win->toolbar_redraw_func = func;
}
/**
* Attach an arbitary pointer to the GUIWIN
*/
void gemtk_wm_set_user_data(GUIWIN *win, void *data)
{
win->user_data = data;
}
/**
* Retrieve the user_data pointer attached to the GUIWIN.
*/
void *gemtk_wm_get_user_data(GUIWIN *win)
{
return(win->user_data);
}
/** Get the scroll management structure for a GUIWIN
*/
struct gemtk_wm_scroll_info_s *gemtk_wm_get_scroll_info(GUIWIN *win) {
return(&win->scroll_info);
}
/**
* Get the amount of content dimensions within the window
* which is calculated by using the scroll_info attached to the GUIWIN.
*/
void gemtk_wm_set_scroll_grid(GUIWIN * win, short x, short y)
{
struct gemtk_wm_scroll_info_s *slid = gemtk_wm_get_scroll_info(win);
assert(slid != NULL);
slid->y_unit_px = x;
slid->x_unit_px = y;
}
/** Set the size of the content measured in content units
* \param win the GUIWIN
* \param x horizontal size
* \param y vertical size
*/
void gemtk_wm_set_content_units(GUIWIN * win, short x, short y)
{
struct gemtk_wm_scroll_info_s *slid = gemtk_wm_get_scroll_info(win);
assert(slid != NULL);
slid->x_units = x;
slid->y_units = y;
}
/** Send an Message to a GUIWIN using AES message pipe
* \param win the GUIWIN which shall receive the message
* \param msg_type the WM_ message definition
* \param a the 4th parameter to appl_write
* \param b the 5th parameter to appl_write
* \param c the 6th parameter to appl_write
* \param d the 7th parameter to appl_write
*/
void gemtk_wm_send_msg(GUIWIN *win, short msg_type, short a, short b, short c,
short d)
{
short msg[8];
msg[0] = msg_type;
msg[1] = gl_apid;
msg[2] = 0;
msg[3] = win->handle;
msg[4] = a;
msg[5] = b;
msg[6] = c;
msg[7] = d;
appl_write(gl_apid, 16, &msg);
}
/** Directly execute an Message to a GUIWIN using internal dispatcher
* \param win the GUIWIN which shall receive the message
* \param msg_type the WM_ message definition
* \param a the 4th parameter to appl_write
* \param b the 5th parameter to appl_write
* \param c the 6th parameter to appl_write
* \param d the 7th parameter to appl_write
*/
short gemtk_wm_exec_msg(GUIWIN *win, short msg_type, short a, short b, short c,
short d)
{
short msg[8], retval;
GRECT work;
EVMULT_OUT event_out;
EVMULT_IN event_in = {
.emi_flags = MU_MESAG | MU_TIMER | MU_KEYBD | MU_BUTTON,
.emi_bclicks = 258,
.emi_bmask = 3,
.emi_bstate = 0,
.emi_m1leave = MO_ENTER,
.emi_m1 = {0,0,0,0},
.emi_m2leave = 0,
.emi_m2 = {0,0,0,0},
.emi_tlow = 0,
.emi_thigh = 0
};
msg[0] = msg_type;
msg[1] = gl_apid;
msg[2] = 0;
msg[3] = win->handle;
msg[4] = a;
msg[5] = b;
msg[6] = c;
msg[7] = d;
event_out.emo_events = MU_MESAG;
retval = preproc_wm(win, &event_out, msg);
if (retval == 0 || (win->flags & GEMTK_WM_FLAG_PREPROC_WM) != 0){
retval = win->handler_func(win, &event_out, msg);
}
return(retval);
}
void gemtk_wm_exec_redraw(GUIWIN *win, GRECT *area)
{
GRECT work;
if (area == NULL) {
gemtk_wm_get_grect(win, GEMTK_WM_AREA_WORK, &work);
if (work.g_w < 1 || work.g_h < 1) {
if (win->toolbar != NULL) {
gemtk_wm_get_grect(win, GEMTK_WM_AREA_TOOLBAR, &work);
if (work.g_w < 1 || work.g_h < 1) {
return;
}
}
}
area = &work;
}
gemtk_wm_exec_msg(win, WM_REDRAW, area->g_x, area->g_y, area->g_w,
area->g_h);
}
/** Attach an AES FORM to the GUIWIN, similar feature like the toolbar
*/
void gemtk_wm_set_form(GUIWIN *win, OBJECT *tree, short index)
{
DEBUG_PRINT(("Setting form %p (%d) for window %p\n", tree, index, win));
win->form = tree;
win->form_edit_obj = -1;
win->form_focus_obj = -1;
win->form_idx = index;
}
/** Checks if a GUIWIN is overlapped by other windows.
*/
bool gemtk_wm_has_intersection(GUIWIN *win, GRECT *work)
{
GRECT area, mywork;
bool retval = true;
if (work == NULL) {
gemtk_wm_get_grect(win, GEMTK_WM_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);
}
/** Execute an toolbar redraw
* \param msg specifies the AES message which initiated the redraw, or 0 when
* the function was called without AES message context.
*/
void gemtk_wm_toolbar_redraw(GUIWIN *gw, uint16_t msg, GRECT *clip)
{
GRECT tb_area, tb_area_ro, g;
gemtk_wm_get_grect(gw, GEMTK_WM_AREA_TOOLBAR, &tb_area_ro);
if(clip == NULL) {
clip = &tb_area_ro;
}
tb_area = tb_area_ro;
if (rc_intersect(clip, &tb_area)) {
gw->toolbar_redraw_func(gw, msg, &tb_area);
}
}
/** Execute FORM redraw
*/
void gemtk_wm_form_redraw(GUIWIN *gw, GRECT *clip)
{
GRECT area, area_ro, g;
int scroll_px_x, scroll_px_y;
struct gemtk_wm_scroll_info_s *slid;
//int new_x, new_y, old_x, old_y;
short edit_idx;
DEBUG_PRINT(("gemtk_wm_form_redraw\n"));
// calculate form coordinates, include scrolling:
gemtk_wm_get_grect(gw, GEMTK_WM_AREA_CONTENT, &area_ro);
slid = gemtk_wm_get_scroll_info(gw);
// Update form position:
gw->form[gw->form_idx].ob_x = area_ro.g_x - (slid->x_pos * slid->x_unit_px);
gw->form[gw->form_idx].ob_y = area_ro.g_y - (slid->y_pos * slid->y_unit_px);
if(clip == NULL) {
clip = &area_ro;
}
area = area_ro;
/* Walk the AES rectangle list and redraw the visible areas of the window:*/
if(rc_intersect(clip, &area)) {
wind_get_grect(gw->handle, WF_FIRSTXYWH, &g);
while (g.g_h > 0 || g.g_w > 0) {
if(rc_intersect(&area, &g)) {
objc_draw(gw->form, gw->form_idx, 8, g.g_x, g.g_y,
g.g_w, g.g_h);
}
wind_get_grect(gw->handle, WF_NEXTXYWH, &g);
}
}
}
/** Fill the content area with white color
*/
void gemtk_wm_clear(GUIWIN *win)
{
GRECT area, g;
short pxy[4];
VdiHdl vh;
vh = gemtk_wm_get_vdi_handle(win);
if(win->state & GEMTK_WM_STATUS_ICONIFIED) {
// also clear the toolbar area when iconified:
gemtk_wm_get_grect(win, GEMTK_WM_AREA_WORK, &area);
} else {
gemtk_wm_get_grect(win, GEMTK_WM_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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