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netsurf/atari/browser.c

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/*
* Copyright 2010 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 <limits.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdbool.h>
#include <assert.h>
#include <windom.h>
#include "desktop/gui.h"
#include "desktop/netsurf.h"
#include "desktop/browser.h"
#include "desktop/mouse.h"
#include "desktop/textinput.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "atari/gui.h"
#include "atari/browser_win.h"
#include "atari/misc.h"
#include "atari/global_evnt.h"
#include "atari/browser_win.h"
#include "atari/res/netsurf.rsh"
#include "atari/browser.h"
#include "atari/plot/plotter.h"
#include "atari/plot.h"
#include "atari/font.h"
#include "cflib.h"
extern browser_mouse_state bmstate;
extern int mouse_click_time[3];
extern int mouse_hold_start[3];
extern GEM_PLOTTER plotter;
extern struct gui_window *input_window;
extern short last_drag_x;
extern short last_drag_y;
static void __CDECL browser_evnt_wdestroy( WINDOW * c, short buff[8], void * data);
COMPONENT *comp_widget_create( APPvar *app, WINDOW *win, int size, int flex );
static bool frameinit = true;
/* create an browser component */
struct s_browser * browser_create
(
struct gui_window * gw,
struct browser_window *bw,
struct browser_window * clone,
int lt, int w, int flex
)
{
LGRECT cwork;
COMPONENT * scrollv, * scrollh, * drawable;
if( frameinit ) {
mt_FrameInit( &app );
frameinit = false;
}
CMP_BROWSER bnew = (CMP_BROWSER)malloc( sizeof(struct s_browser) );
if( bnew )
{
memset(bnew, 0, sizeof(struct s_browser) );
bnew->bw = bw;
bnew->attached = false;
if(clone)
bw->scale = clone->scale;
else
bw->scale = 1;
bnew->redraw.areas_used = 0;
bnew->compwin = mt_WindCreate( &app, VSLIDE|HSLIDE, 1, 1, app.w, app.h);
bnew->compwin->w_u = 1;
bnew->compwin->h_u = 1;
/* needs to be adjusted when content width is known: */
bnew->compwin->ypos_max = w;
bnew->compwin->xpos_max = w;
mt_WindSlider( &app, bnew->compwin, HSLIDER|VSLIDER);
bnew->comp = (COMPONENT*)comp_widget_create( (void*)&app, (WINDOW*)bnew->compwin, 1, 1 );
if( bnew->comp == NULL ) {
free(bnew);
return(NULL);
}
mt_EvntDataAdd( &app, bnew->compwin, WM_XBUTTON,
browser_evnt_mbutton, (void*)gw, EV_BOT );
mt_CompEvntDataAttach( &app, bnew->comp, WM_REDRAW,
browser_evnt_redraw, (void*)gw );
mt_EvntDataAttach( &app, bnew->compwin , WM_REDRAW, browser_evnt_redraw_x, NULL );
mt_EvntDataAttach( &app, bnew->compwin, WM_SLIDEXY,
browser_evnt_slider, gw );
mt_EvntDataAttach( &app, bnew->compwin, WM_ARROWED,
browser_evnt_arrowed, gw );
mt_CompEvntDataAttach( &app, bnew->comp, WM_DESTROY,
browser_evnt_destroy, (void*)bnew );
/* just stub, as an reminder: */
mt_EvntDataAttach( &app, bnew->compwin, WM_DESTROY,
browser_evnt_wdestroy, (void*)bnew );
mt_CompDataAttach( &app, bnew->comp, CDT_OWNER, gw );
bnew->scroll.requested.y = 0;
bnew->scroll.requested.x = 0;
bnew->scroll.current.x = 0;
bnew->scroll.current.y = 0;
}
return( bnew );
}
bool browser_destroy( struct s_browser * b )
{
LOG(("%s\n", b->bw->name ));
assert( b != NULL );
assert( b->comp != NULL );
assert( b->bw != NULL );
if( b->compwin != NULL ) {
COMPONENT * old = b->comp;
WINDOW * oldwin = b->compwin;
b->comp = NULL;
b->compwin = NULL;
/* Im not sure if this is the right thing to do (after compdelete above,... */
/* listRemove should be used when we just remove an frame... */
/* (I encountered spurious events when not doing that...) */
/* listRemove( (LINKABLE*) oldwin ); */
/* listRemove( (LINKABLE*) old ); */
WindDelete( oldwin );
mt_CompDelete(&app, old );
}
return( true );
}
void browser_get_rect( struct gui_window * gw, enum browser_rect type, LGRECT * out)
{
GRECT work;
assert( out != NULL);
int slider_v_w = 20;
int slider_v_h = 22;
int slider_h_w = 20;
int slider_h_h = 22;
WindGetGrect( gw->browser->compwin, WF_WORKXYWH, &work);
if( type == BR_CONTENT ){
out->g_w = work.g_w;
out->g_h = work.g_h;
out->g_x = work.g_x;
out->g_y = work.g_y;
return;
}
LGRECT cur;
mt_CompGetLGrect(&app, gw->browser->comp, WF_WORKXYWH, &cur);
if( type == BR_HSLIDER ){
out->g_x = cur.g_x;
out->g_y = cur.g_y + work.g_h;
out->g_h = cur.g_h - work.g_h;
out->g_w = cur.g_w;
}
if( type == BR_VSLIDER ){
out->g_x = cur.g_x + work.g_w;
out->g_y = cur.g_y;
out->g_w = cur.g_w - work.g_w;
out->g_h = work.g_h;
}
}
/* Report an resize to the COMPONENT interface */
void browser_update_rects(struct gui_window * gw )
{
short buff[8];
LGRECT cmprect;
mt_WindGetGrect( &app, gw->root->handle, WF_CURRXYWH, (GRECT*)&buff[4]);
buff[0] = CM_REFLOW;
buff[1] = _AESapid;
buff[2] = 0;
EvntExec(gw->root->handle, buff);
}
void browser_set_content_size(struct gui_window * gw, int w, int h)
{
CMP_BROWSER b = gw->browser;
LGRECT work;
browser_get_rect( gw, BR_CONTENT, &work );
b->compwin->ypos_max = h;
b->compwin->xpos_max = w;
if( w < work.g_w + b->scroll.current.x || w < work.g_h + b->scroll.current.y ) {
/* let the scroll routine detect invalid scroll values... */
browser_scroll(gw, WA_LFLINE, b->scroll.current.x, true );
browser_scroll(gw, WA_UPLINE, b->scroll.current.y, true );
/* force update of scrollbars: */
b->scroll.required = true;
}
}
static void __CDECL browser_evnt_wdestroy( WINDOW * c, short buff[8], void * data)
{
struct s_browser * b = (struct s_browser*)data;
LOG((""));
}
static void __CDECL browser_evnt_destroy( COMPONENT * c, long buff[8], void * data)
{
struct s_browser * b = (struct s_browser*)data;
struct gui_window * gw = b->bw->window;
LOG(("%s\n",gw->browser->bw->name));
assert( b != NULL );
assert( gw != NULL );
assert( b->comp == NULL );
free( b );
gw->browser = NULL;
LOG(("evnt_destroy done!"));
}
static void __CDECL browser_evnt_arrowed( WINDOW *win, short buff[8], void * data)
{
bool abs = false;
int value = BROWSER_SCROLL_SVAL;
struct gui_window * gw = data;
LGRECT cwork;
browser_get_rect( gw, BR_CONTENT, &cwork );
switch( buff[4] ) {
case WA_UPPAGE:
case WA_DNPAGE:
value = cwork.g_h;
break;
case WA_LFPAGE:
case WA_RTPAGE:
value = cwork.g_w;
break;
default:
break;
}
browser_scroll( gw, buff[4], value, abs );
}
void __CDECL browser_evnt_slider( WINDOW *win, short buff[8], void * data)
{
int dx = buff[4];
int dy = buff[5];
struct gui_window * gw = data;
GRECT work, screen;
if (!dx && !dy) return;
/* update the sliders _before_ we call redraw (which might depend on the slider possitions) */
mt_WindSlider( &app, win, (dx?HSLIDER:0) | (dy?VSLIDER:0) );
if( dy > 0 )
browser_scroll( gw, WA_DNPAGE, abs(dy), false );
else if ( dy < 0)
browser_scroll( gw, WA_UPPAGE, abs(dy), false );
if( dx > 0 )
browser_scroll( gw, WA_RTPAGE, abs(dx), false );
else if( dx < 0 )
browser_scroll( gw, WA_LFPAGE, abs(dx), false );
}
static void __CDECL browser_evnt_mbutton( WINDOW * c, short buff[8], void * data)
{
long lbuff[8];
short i;
short mx, my, dummy, mbut;
uint32_t tnow = clock()*1000 / CLOCKS_PER_SEC;
LGRECT cwork;
struct gui_window * gw = data;
input_window = gw;
window_set_focus( gw, BROWSER, (void*)gw->browser );
browser_get_rect( gw, BR_CONTENT, &cwork );
mx = evnt.mx - cwork.g_x;
my = evnt.my - cwork.g_y;
LOG(("mevent (%d) within %s at %d / %d\n", evnt.nb_click, gw->browser->bw->name, mx, my ));
if( evnt.mkstate & (K_RSHIFT | K_LSHIFT) ){
bmstate |= BROWSER_MOUSE_MOD_1;
} else {
bmstate &= ~(BROWSER_MOUSE_MOD_1);
}
if( (evnt.mkstate & K_CTRL) ){
bmstate |= BROWSER_MOUSE_MOD_2;
} else {
bmstate &= ~(BROWSER_MOUSE_MOD_2);
}
if( (evnt.mkstate & K_ALT) ){
bmstate |= BROWSER_MOUSE_MOD_3;
} else {
bmstate &= ~(BROWSER_MOUSE_MOD_3);
}
int sx = (mx + gw->browser->scroll.current.x);
int sy = (my + gw->browser->scroll.current.y);
graf_mkstate(&dummy, &dummy, &mbut, &dummy);
/* todo: if we need right button click, increase loop count */
for( i = 1; i<2; i++) {
if( (mbut & i) ) {
if( mouse_hold_start[i-1] == 0 ) {
mouse_hold_start[i-1] = tnow;
LOG(("Drag %d starts at %d,%d\n", i, sx, sy));
if( i == 1 ) {
browser_window_mouse_click(gw->browser->bw,BROWSER_MOUSE_PRESS_1,sx,sy);
bmstate |= BROWSER_MOUSE_HOLDING_1 | BROWSER_MOUSE_DRAG_ON;
}
if( i == 2 ) {
browser_window_mouse_click(gw->browser->bw,BROWSER_MOUSE_PRESS_2,sx,sy);
bmstate |= BROWSER_MOUSE_HOLDING_2 | BROWSER_MOUSE_DRAG_ON;
}
} else {
if( i == 1 ) {
bmstate |= BROWSER_MOUSE_DRAG_1 | BROWSER_MOUSE_DRAG_ON;
}
if( i == 2 ) {
bmstate |= BROWSER_MOUSE_DRAG_2 | BROWSER_MOUSE_DRAG_ON;
}
}
if( i != 0 ){
if( (abs(mx-last_drag_x)>5) || (abs(mx-last_drag_y)>5) ){
browser_window_mouse_track(
gw->browser->bw,
bmstate,
sx, sy
);
last_drag_x = mx;
last_drag_y = my;
}
}
} else {
mouse_click_time[i-1] = tnow; /* clock in ms */
/* check if this event was during an drag op: */
if( mouse_hold_start[i-1] == 0 ) {
if( i == 1) {
LOG(("Click within %s at %d / %d\n", gw->browser->bw->name, sx, sy ));
browser_window_mouse_click(gw->browser->bw,BROWSER_MOUSE_PRESS_1,sx,sy);
browser_window_mouse_click(gw->browser->bw,BROWSER_MOUSE_CLICK_1,sx,sy);
bmstate &= ~( BROWSER_MOUSE_HOLDING_1 | BROWSER_MOUSE_DRAG_1 | BROWSER_MOUSE_CLICK_1);
}
if( i == 2 ) {
LOG(("Click within %s at %d / %d", gw->browser->bw->name, mx, my ));
browser_window_mouse_click(gw->browser->bw,BROWSER_MOUSE_PRESS_1,sx,sy);
browser_window_mouse_click(gw->browser->bw,BROWSER_MOUSE_CLICK_2,sx,sy);
bmstate &= ~( BROWSER_MOUSE_HOLDING_2 | BROWSER_MOUSE_DRAG_2 | BROWSER_MOUSE_CLICK_2);
}
}
mouse_hold_start[i-1] = 0;
}
}
}
void browser_scroll( struct gui_window * gw, short mode, int value, bool abs )
{
LGRECT work;
int max_y_scroll;
int max_x_scroll;
int oldx = gw->browser->scroll.current.x;
int oldy = gw->browser->scroll.current.y;
struct s_browser * b = gw->browser;
LOG((""));
if( b->bw->current_content != NULL ) {
browser_get_rect( gw, BR_CONTENT, &work);
max_y_scroll = (content_get_height( b->bw->current_content ) - work.g_h );
max_x_scroll = (content_get_width( b->bw->current_content ) - work.g_w);
} else {
return;
}
switch( mode ) {
case WA_UPPAGE:
case WA_UPLINE:
if( max_y_scroll < 1 )
return;
if( abs == false )
b->scroll.requested.y -= value;
else
b->scroll.requested.y = value - b->scroll.current.y;
break;
case WA_DNPAGE:
case WA_DNLINE:
if( max_y_scroll < 1 )
return;
if( abs == false )
b->scroll.requested.y += value;
else
b->scroll.requested.y = value - b->scroll.current.y;
break;
case WA_LFPAGE:
case WA_LFLINE:
if( max_x_scroll < 1 )
return;
if( abs == false )
b->scroll.requested.x -= value;
else
b->scroll.requested.x = value - b->scroll.current.x;
break;
case WA_RTPAGE:
case WA_RTLINE:
if( max_x_scroll < 1 )
return;
if( abs == false )
b->scroll.requested.x += value;
else
b->scroll.requested.x = value - b->scroll.current.x;
break;
default: break;
}
if( b->scroll.current.y + b->scroll.requested.y < 0 ) {
b->scroll.requested.y = -b->scroll.current.y;
}
if( b->scroll.current.y + b->scroll.requested.y > max_y_scroll ) {
b->scroll.requested.y = max_y_scroll - b->scroll.current.y;
}
if( b->scroll.current.x + b->scroll.requested.x < 0 ) {
b->scroll.requested.x = -b->scroll.current.x;
}
if( b->scroll.current.x + b->scroll.requested.x > max_x_scroll ) {
b->scroll.requested.x = max_x_scroll - b->scroll.current.x;
}
if( oldy != b->scroll.current.y + b->scroll.requested.y ||
oldx != b->scroll.current.x + b->scroll.requested.x ) {
b->scroll.required = true;
}
}
/*
perform the requested scrolling.
gw -> the browser window to act upon.
bwrect -> the dimensions of the browser, so that this function
doesn't need to get it.
*/
static void browser_process_scroll( struct gui_window * gw, LGRECT bwrect )
{
struct s_browser * b = gw->browser;
GRECT src;
GRECT dst;
short h,w;
if( gw->browser->bw->current_content == NULL )
return;
h = (short) abs( b->scroll.requested.y );
w = (short) abs( b->scroll.requested.x );
/* if the request exceeds the browser size, redraw the whole area */
if ( b->scroll.requested.y > bwrect.g_h || b->scroll.requested.y < -bwrect.g_h ||
b->scroll.requested.x > bwrect.g_w || b->scroll.requested.x < -bwrect.g_w ) {
b->scroll.current.y += b->scroll.requested.y;
b->scroll.current.x += b->scroll.requested.x;
browser_schedule_redraw( gw, 0, 0, bwrect.g_w, bwrect.g_h);
/* don't scroll again: */
b->scroll.requested.y = 0;
b->scroll.requested.x = 0;
}
if( b->scroll.requested.y < 0 ) {
/* scroll up */
src.g_x = 0;
src.g_y = 0;
src.g_w = bwrect.g_w;
src.g_h = bwrect.g_h - h;
dst.g_x = 0;
dst.g_y = h;
dst.g_w = src.g_w;
dst.g_h = src.g_h;
plotter->copy_rect( plotter, src, dst );
b->scroll.current.y += b->scroll.requested.y;
browser_schedule_redraw( gw, 0, 0, bwrect.g_w, h ) ;
}
if( b->scroll.requested.y > 0 ) {
/* scroll down */
src.g_x = 0;
src.g_y = h;
src.g_w = bwrect.g_w;
src.g_h = bwrect.g_h - h;
dst.g_x = 0;
dst.g_y = 0;
dst.g_w = bwrect.g_w;
dst.g_h = bwrect.g_h - h;
plotter->copy_rect( plotter, src, dst );
b->scroll.current.y += b->scroll.requested.y;
browser_schedule_redraw( gw, 0, bwrect.g_h - h, bwrect.g_w, bwrect.g_h );
}
if( b->scroll.requested.x < 0 ) {
/* scroll to the left */
src.g_x = 0;
src.g_y = 0;
src.g_w = bwrect.g_w - w;
src.g_h = bwrect.g_h;
dst.g_x = w;
dst.g_y = 0;
dst.g_w = bwrect.g_w - w;
dst.g_h = bwrect.g_h;
plotter->copy_rect( plotter, src, dst );
b->scroll.current.x += b->scroll.requested.x;
browser_schedule_redraw( gw, 0, 0, w, bwrect.g_h );
}
if( b->scroll.requested.x > 0 ) {
/* scroll to the right */
src.g_x = w;
src.g_y = 0;
src.g_w = bwrect.g_w - w;
src.g_h = bwrect.g_h;
dst.g_x = 0;
dst.g_y = 0;
dst.g_w = bwrect.g_w - w;
dst.g_h = bwrect.g_h;
plotter->copy_rect( plotter, src, dst );
b->scroll.current.x += b->scroll.requested.x;
browser_schedule_redraw( gw, bwrect.g_w - w, 0, bwrect.g_w, bwrect.g_h );
}
b->scroll.requested.y = 0;
b->scroll.requested.x = 0;
gw->browser->compwin->xpos = b->scroll.current.x;
gw->browser->compwin->ypos = b->scroll.current.y;
mt_WindSlider( &app, gw->browser->compwin, HSLIDER|VSLIDER);
}
bool browser_input( struct gui_window * gw, unsigned short nkc )
{
LGRECT work;
bool r = false;
unsigned char ascii = (nkc & 0xFF);
nkc = (nkc & (NKF_CTRL|NKF_SHIFT|0xFF));
browser_get_rect(gw, BR_CONTENT, &work);
if( (nkc & NKF_CTRL) != 0 ) {
switch ( ascii ) {
case 'A':
r = browser_window_key_press(gw->browser->bw, KEY_SELECT_ALL);
break;
case 'C':
r = browser_window_key_press(gw->browser->bw, KEY_COPY_SELECTION);
break;
case 'X':
r = browser_window_key_press(gw->browser->bw, KEY_CUT_SELECTION);
break;
case 'V':
r = browser_window_key_press(gw->browser->bw, KEY_PASTE);
break;
default:
break;
}
}
if( (nkc & NKF_SHIFT) != 0 ) {
switch( ascii ) {
case NK_TAB:
r = browser_window_key_press(gw->browser->bw, KEY_SHIFT_TAB);
break;
case NK_LEFT:
if( browser_window_key_press(gw->browser->bw, KEY_LINE_START) == false) {
browser_scroll( gw, WA_LFPAGE, work.g_w, false );
r = true;
}
break;
case NK_RIGHT:
if( browser_window_key_press(gw->browser->bw, KEY_LINE_END) == false) {
browser_scroll( gw, WA_RTPAGE, work.g_w, false );
r = true;
}
break;
case NK_UP:
if ( browser_window_key_press(gw->browser->bw, KEY_PAGE_UP) ==false ){
browser_scroll( gw, WA_UPPAGE, work.g_h, false );
r = true;
}
break;
case NK_DOWN:
if (browser_window_key_press(gw->browser->bw, KEY_PAGE_DOWN) == false) {
browser_scroll( gw, WA_DNPAGE, work.g_h, false );
r = true;
}
break;
default:
break;
}
}
if( (nkc & (NKF_SHIFT|NKF_CTRL) ) == 0 ) {
switch( ascii ) {
case NK_BS:
r = browser_window_key_press(gw->browser->bw, KEY_DELETE_LEFT);
break;
case NK_DEL:
r = browser_window_key_press(gw->browser->bw, KEY_DELETE_RIGHT);
break;
case NK_TAB:
r = browser_window_key_press(gw->browser->bw, KEY_TAB);
break;
case NK_ENTER:
r = browser_window_key_press(gw->browser->bw, KEY_NL);
break;
case NK_RET:
r = browser_window_key_press(gw->browser->bw, KEY_CR);
break;
case NK_ESC:
r = browser_window_key_press(gw->browser->bw, KEY_ESCAPE);
break;
case NK_CLRHOME:
r = browser_window_key_press(gw->browser->bw, KEY_TEXT_START);
break;
case NK_RIGHT:
if (browser_window_key_press(gw->browser->bw, KEY_RIGHT) == false){
browser_scroll( gw, WA_RTLINE, 16, false );
r = true;
}
break;
case NK_LEFT:
if (browser_window_key_press(gw->browser->bw, KEY_LEFT) == false) {
browser_scroll( gw, WA_LFLINE, 16, false );
r = true;
}
break;
case NK_UP:
if (browser_window_key_press(gw->browser->bw, KEY_UP) == false) {
browser_scroll( gw, WA_UPLINE, 16, false);
r = true;
}
break;
case NK_DOWN:
if (browser_window_key_press(gw->browser->bw, KEY_DOWN) == false) {
browser_scroll( gw, WA_DNLINE, 16, false);
r = true;
}
break;
case NK_M_PGUP:
if ( browser_window_key_press(gw->browser->bw, KEY_PAGE_UP) ==false ) {
browser_scroll( gw, WA_UPPAGE, work.g_h, false );
r = true;
}
break;
case NK_M_PGDOWN:
if (browser_window_key_press(gw->browser->bw, KEY_PAGE_DOWN) == false) {
browser_scroll( gw, WA_DNPAGE, work.g_h, false );
r = true;
}
break;
default:
break;
}
}
if( r == false && ( (nkc & NKF_CTRL)==0) ) {
if (ascii >= 9 ) {
int ucs4 = atari_to_ucs4(ascii);
r = browser_window_key_press(gw->browser->bw, ucs4 );
}
}
return( r );
}
static void __CDECL browser_evnt_redraw_x( WINDOW * c, short buf[8], void * data)
{
/* just an stub to prevent wndclear */
/* Probably the browser redraw is better placed here? dunno! */
return;
}
/* determines if a browser window needs redraw */
bool browser_redraw_required( struct gui_window * gw)
{
bool ret = true;
CMP_BROWSER b = gw->browser;
if( b->bw->current_content == NULL )
return ( false );
ret = ( ((b->redraw.areas_used > 0) )
|| b->scroll.required
|| b->caret.redraw );
return( ret );
}
/* schedule a redraw of content */
/* coords are relative to the framebuffer */
void browser_schedule_redraw_rect(struct gui_window * gw, short x, short y, short w, short h)
{
if( x < 0 ){
w += x;
x = 0;
}
if( y < 0 ) {
h += y;
y = 0;
}
browser_schedule_redraw( gw, x, y, x+w, y+h );
}
static inline bool rect_intersect( struct rect * box1, struct rect * box2 )
{
if (box2->x1 < box1->x0)
return false;
if (box2->y1 < box1->y0)
return false;
if (box2->x0 > box1->x1)
return false;
if (box2->y0 > box1->y1)
return false;
return true;
}
/*
schedule a redraw of content, coords are relative to the framebuffer
*/
void browser_schedule_redraw(struct gui_window * gw, short x0, short y0, short x1, short y1)
{
assert( gw != NULL );
CMP_BROWSER b = gw->browser;
int i;
struct rect area;
LGRECT work;
if( y1 < 0 || x1 < 0 )
return;
browser_get_rect( gw, BR_CONTENT, &work);
if( x0 > work.g_w )
return;
if( y0 > work.g_h )
return;
area.x0 = x0;
area.y0 = y0;
area.x1 = x1;
area.y1 = y1;
for( i=0; i<b->redraw.areas_used; i++) {
if( b->redraw.areas[i].x0 <= x0
&& b->redraw.areas[i].x1 >= x1
&& b->redraw.areas[i].y0 <= y0
&& b->redraw.areas[i].y1 >= y1 ){
/* the area is already queued for redraw */
return;
} else {
if( rect_intersect(&b->redraw.areas[i], &area ) ){
b->redraw.areas[i].x0 = MIN(b->redraw.areas[i].x0, x0);
b->redraw.areas[i].y0 = MIN(b->redraw.areas[i].y0, y0);
b->redraw.areas[i].x1 = MAX(b->redraw.areas[i].x1, x1);
b->redraw.areas[i].y1 = MAX(b->redraw.areas[i].y1, y1);
return;
}
}
}
if( b->redraw.areas_used < MAX_REDRW_SLOTS ) {
b->redraw.areas[b->redraw.areas_used].x0 = x0;
b->redraw.areas[b->redraw.areas_used].x1 = x1;
b->redraw.areas[b->redraw.areas_used].y0 = y0;
b->redraw.areas[b->redraw.areas_used].y1 = y1;
b->redraw.areas_used++;
} else {
/*
we are out of available slots, merge box with last slot
this is dumb... but also a very rare case.
*/
b->redraw.areas[MAX_REDRW_SLOTS-1].x0 = MIN(b->redraw.areas[i].x0, x0);
b->redraw.areas[MAX_REDRW_SLOTS-1].y0 = MIN(b->redraw.areas[i].y0, y0);
b->redraw.areas[MAX_REDRW_SLOTS-1].x1 = MAX(b->redraw.areas[i].x1, x1);
b->redraw.areas[MAX_REDRW_SLOTS-1].y1 = MAX(b->redraw.areas[i].y1, y1);
}
done:
return;
}
static void browser_redraw_content( struct gui_window * gw, int xoff, int yoff )
{
LGRECT work;
CMP_BROWSER b = gw->browser;
struct redraw_context ctx = {
.interactive = true,
.plot = &atari_plotters
};
LOG(("%s : %d,%d - %d,%d\n", b->bw->name, b->redraw.area.x0,
b->redraw.area.y0, b->redraw.area.x1, b->redraw.area.y1
));
browser_window_redraw( b->bw, -b->scroll.current.x,
-b->scroll.current.y, &b->redraw.area, &ctx );
}
void browser_redraw_caret( struct gui_window * gw, GRECT * area )
{
GRECT caret;
struct s_browser * b = gw->browser;
if( b->caret.redraw == true ){
struct rect old_clip;
struct rect clip;
caret = b->caret.requested;
caret.g_x -= gw->browser->scroll.current.x;
caret.g_y -= gw->browser->scroll.current.y;
clip.x0 = caret.g_x - 1;
clip.y0 = caret.g_y - 1;
clip.x1 = caret.g_x + caret.g_w + 1;
clip.y1 = caret.g_y + caret.g_h + 1;
/* store old clip before adjusting it: */
plot_get_clip( &old_clip );
/* clip to cursor: */
plot_clip( &clip );
plot_rectangle( caret.g_x, caret.g_y,
caret.g_x+caret.g_w, caret.g_y+caret.g_h,
plot_style_caret );
/* restore old clip area: */
plot_clip( &old_clip );
b->caret.current.g_x = caret.g_x + gw->browser->scroll.current.x;
b->caret.current.g_y = caret.g_y + gw->browser->scroll.current.y;
b->caret.current.g_w = caret.g_w;
b->caret.current.g_h = caret.g_h;
}
}
void browser_redraw( struct gui_window * gw )
{
LGRECT bwrect;
struct s_browser * b = gw->browser;
short todo[4];
struct rect clip;
if( b->attached == false || b->bw->current_content == NULL ) {
return;
}
browser_get_rect(gw, BR_CONTENT, &bwrect);
plotter->resize(plotter, bwrect.g_w, bwrect.g_h);
plotter->move(plotter, bwrect.g_x, bwrect.g_y );
clip.x0 = 0;
clip.y0 = 0;
clip.x1 = bwrect.g_w;
clip.y1 = bwrect.g_h;
plotter->clip( plotter, &clip );
plotter->lock(plotter);
if( b->scroll.required == true && b->bw->current_content != NULL) {
browser_process_scroll( gw, bwrect );
b->scroll.required = false;
}
if ((b->redraw.areas_used > 0) && b->bw->current_content != NULL ) {
if( (plotter->flags & PLOT_FLAG_OFFSCREEN) == 0 ) {
int i;
GRECT area;
GRECT fbwork;
todo[0] = bwrect.g_x;
todo[1] = bwrect.g_y;
todo[2] = todo[0] + bwrect.g_w-1;
todo[3] = todo[1] + bwrect.g_h-1;
vs_clip(plotter->vdi_handle, 1, (short*)&todo[0]);
if( wind_get(gw->root->handle->handle, WF_FIRSTXYWH,
&todo[0], &todo[1], &todo[2], &todo[3] )!=0 ) {
while (todo[2] && todo[3]) {
/* convert screen to framebuffer coords: */
fbwork.g_x = todo[0] - bwrect.g_x;
fbwork.g_y = todo[1] - bwrect.g_y;
if( fbwork.g_x < 0 ){
fbwork.g_w = todo[2] + todo[0];
fbwork.g_x = 0;
} else {
fbwork.g_w = todo[2];
}
if( fbwork.g_y < 0 ){
fbwork.g_h = todo[3] + todo[1];
fbwork.g_y = 0;
} else {
fbwork.g_h = todo[3];
}
/* walk the redraw requests: */
for( i=0; i<b->redraw.areas_used; i++ ){
area.g_x = b->redraw.areas[i].x0;
area.g_y = b->redraw.areas[i].y0;
area.g_w = b->redraw.areas[i].x1 - b->redraw.areas[i].x0;
area.g_h = b->redraw.areas[i].y1 - b->redraw.areas[i].y0;
if (rc_intersect((GRECT *)&fbwork,(GRECT *)&area)) {
b->redraw.area.x0 = area.g_x;
b->redraw.area.y0 = area.g_y;
b->redraw.area.x1 = area.g_x + area.g_w;
b->redraw.area.y1 = area.g_y + area.g_h;
browser_redraw_content( gw, 0, 0 );
} else {
/*
the area should be kept scheduled for later redraw, but because this
is onscreen plotter, it doesn't make much sense anyway...
*/
}
}
if (wind_get(gw->root->handle->handle, WF_NEXTXYWH,
&todo[0], &todo[1], &todo[2], &todo[3])==0) {
break;
}
}
}
vs_clip(plotter->vdi_handle, 0, (short*)&todo);
} else {
/* its save to do a complete redraw :) */
}
b->redraw.areas_used = 0;
}
if( b->caret.redraw == true && b->bw->current_content != NULL ) {
GRECT area;
todo[0] = bwrect.g_x;
todo[1] = bwrect.g_y;
todo[2] = todo[0] + bwrect.g_w;
todo[3] = todo[1] + bwrect.g_h;
area.g_x = bwrect.g_x;
area.g_y = bwrect.g_y;
area.g_w = bwrect.g_w;
area.g_h = bwrect.g_h;
vs_clip(plotter->vdi_handle, 1, (short*)&todo[0]);
browser_redraw_caret( gw, &area );
vs_clip(plotter->vdi_handle, 0, (short*)&todo[0]);
b->caret.redraw = false;
}
plotter->unlock(plotter);
/* TODO: if we use offscreen bitmap, trigger content redraw here */
}
static void __CDECL browser_evnt_redraw( COMPONENT * c, long buff[8], void * data)
{
short pxy[8];
WINDOW * w;
struct gui_window * gw = (struct gui_window *) data;
CMP_BROWSER b = gw->browser;
LGRECT work, lclip, rwork;
// TODO: maybe implement something like validate_gw()
// to fetch spurious redraw events? the function should
// traverse all gui_windows and see if gw exists in the list
int xoff,yoff,width,heigth;
short cw, ch, cellw, cellh;
/* use that instead of browser_find_root() ? */
w = (WINDOW*)mt_CompGetPtr( &app, c, CF_WINDOW );
browser_get_rect( gw, BR_CONTENT, &work );
lclip = work;
if ( !rc_lintersect( (LGRECT*)&buff[4], &lclip ) ) return;
if( b->bw->current_content == NULL )
return;
/* convert redraw coords to framebuffer coords: */
lclip.g_x -= work.g_x;
lclip.g_y -= work.g_y;
if( lclip.g_x < 0 ) {
lclip.g_w = work.g_w + lclip.g_x;
lclip.g_x = 0;
}
if( lclip.g_y < 0 ) {
lclip.g_h = work.g_h + lclip.g_y;
lclip.g_y = 0;
}
if( lclip.g_h > 0 && lclip.g_w > 0 ) {
browser_schedule_redraw( gw, lclip.g_x, lclip.g_y,
lclip.g_x + lclip.g_w, lclip.g_y + lclip.g_h
);
}
return;
}
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