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netsurf/atari/treeview.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 <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "content/urldb.h"
#include "desktop/browser.h"
#include "desktop/plotters.h"
#include "desktop/textinput.h"
#include "desktop/tree.h"
#include "desktop/tree_url_node.h"
#include "desktop/textinput.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/utils.h"
#include "atari/gui.h"
#include "atari/treeview.h"
#include "atari/plot/plot.h"
#include "atari/misc.h"
#include "atari/gemtk/gemtk.h"
#include "cflib.h"
enum treeview_area_e {
TREEVIEW_AREA_WORK = 0,
TREEVIEW_AREA_TOOLBAR,
TREEVIEW_AREA_CONTENT
};
extern int mouse_hold_start[3];
extern browser_mouse_state bmstate;
extern short last_drag_x;
extern short last_drag_y;
extern long atari_plot_flags;
extern int atari_plot_vdi_handle;
static void atari_treeview_resized(struct tree *tree,int w,int h, void *pw);
static void atari_treeview_scroll_visible(int y, int h, void *pw);
static void atari_treeview_get_dimensions(int *width, int *height, void *pw);
static void atari_treeview_get_grect(NSTREEVIEW tree,
enum treeview_area_e mode, GRECT *dest);
static const struct treeview_table atari_tree_callbacks = {
atari_treeview_request_redraw,
atari_treeview_resized,
atari_treeview_scroll_visible,
atari_treeview_get_dimensions
};
static void __CDECL on_mbutton_event(NSTREEVIEW tv, EVMULT_OUT *ev_out,
short msg[8]);
static void __CDECL on_keybd_event(NSTREEVIEW tv, EVMULT_OUT *ev_out,
short msg[8]);
static void __CDECL on_redraw_event(NSTREEVIEW tv, EVMULT_OUT *ev_out,
short msg[8]);
static short handle_event(GUIWIN *win, EVMULT_OUT *ev_out, short msg[8])
{
NSTREEVIEW tv = (NSTREEVIEW) guiwin_get_user_data(win);
if( (ev_out->emo_events & MU_MESAG) != 0 ) {
// handle message
switch (msg[0]) {
case WM_REDRAW:
on_redraw_event(tv, ev_out, msg);
break;
case WM_SIZED:
case WM_FULLED:
//atari_treeview_resized(tv->tree, tv->extent.x, tv->extent.y, tv);
break;
default:
break;
}
}
if( (ev_out->emo_events & MU_KEYBD) != 0 ) {
on_keybd_event(tv, ev_out, msg);
}
if( (ev_out->emo_events & MU_BUTTON) != 0 ) {
LOG(("Treeview click at: %d,%d\n", ev_out->emo_mouse.p_x,
ev_out->emo_mouse.p_y));
on_mbutton_event(tv, ev_out, msg);
}
if(tv != NULL && tv->user_func != NULL){
tv->user_func(win, ev_out, msg);
}
return(0);
}
static void __CDECL on_keybd_event(NSTREEVIEW tv, EVMULT_OUT *ev_out,
short msg[8])
{
bool r=false;
long kstate = 0;
long kcode = 0;
long ucs4;
long ik;
unsigned short nkc = 0;
unsigned short nks = 0;
unsigned char ascii;
kstate = ev_out->emo_kmeta;
kcode = ev_out->emo_kreturn;
nkc= gem_to_norm( (short)kstate, (short)kcode );
ascii = (nkc & 0xFF);
ik = nkc_to_input_key( nkc, &ucs4 );
if( ik == 0 ){
if (ascii >= 9 ) {
r = tree_keypress( tv->tree, ucs4 );
}
} else {
r = tree_keypress( tv->tree, ik );
}
}
static void __CDECL on_redraw_event(NSTREEVIEW tv, EVMULT_OUT *ev_out,
short msg[8])
{
GRECT work, clip;
struct guiwin_scroll_info_s *slid;
if( tv == NULL )
return;
guiwin_get_grect(tv->window, GUIWIN_AREA_CONTENT, &work);
slid = guiwin_get_scroll_info(tv->window);
clip = work;
if ( !rc_intersect( (GRECT*)&msg[4], &clip ) ) return;
clip.g_x -= work.g_x;
clip.g_y -= work.g_y;
if( clip.g_x < 0 ) {
clip.g_w = work.g_w + clip.g_x;
clip.g_x = 0;
}
if( clip.g_y < 0 ) {
clip.g_h = work.g_h + clip.g_y;
clip.g_y = 0;
}
if( clip.g_h > 0 && clip.g_w > 0 ) {
// TODO: get slider values
atari_treeview_request_redraw((slid->x_pos*slid->x_unit_px) + clip.g_x,
(slid->y_pos*slid->y_unit_px) + clip.g_y,
clip.g_w, clip.g_h, tv
);
}
}
static void __CDECL on_mbutton_event(NSTREEVIEW tv, EVMULT_OUT *ev_out,
short msg[8])
{
struct guiwin_scroll_info_s *slid;
GRECT work;
short mx, my;
if(tv == NULL)
return;
guiwin_get_grect(tv->window, GUIWIN_AREA_CONTENT, &work);
slid = guiwin_get_scroll_info(tv->window);
mx = ev_out->emo_mouse.p_x;
my = ev_out->emo_mouse.p_y;
/* mouse click relative origin: */
short origin_rel_x = (mx-work.g_x) +
(slid->x_pos*slid->x_unit_px);
short origin_rel_y = (my-work.g_y) +
(slid->y_pos*slid->y_unit_px);
if( origin_rel_x >= 0 && origin_rel_y >= 0
&& mx < work.g_x + work.g_w
&& my < work.g_y + work.g_h )
{
int bms;
bool ignore=false;
short cur_rel_x, cur_rel_y, dummy, mbut;
if (ev_out->emo_mclicks == 2) {
tree_mouse_action(tv->tree,
BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_DOUBLE_CLICK,
origin_rel_x, origin_rel_y );
return;
}
graf_mkstate(&cur_rel_x, &cur_rel_x, &mbut, &dummy);
if( (mbut&1) == 0 ){
bms = BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_PRESS_1;
if(ev_out->emo_mclicks == 2 ) {
bms = BROWSER_MOUSE_DOUBLE_CLICK;
}
tree_mouse_action(tv->tree, bms, origin_rel_x, origin_rel_y );
} else {
/* button still pressed */
short prev_x = origin_rel_x;
short prev_y = origin_rel_y;
cur_rel_x = origin_rel_x;
cur_rel_y = origin_rel_y;
if( tree_is_edited(tv->tree) ){
gem_set_cursor(&gem_cursors.ibeam);
} else {
gem_set_cursor(&gem_cursors.hand);
}
tv->startdrag.x = origin_rel_x;
tv->startdrag.y = origin_rel_y;
tree_mouse_action( tv->tree,
BROWSER_MOUSE_DRAG_1 | BROWSER_MOUSE_DRAG_ON ,
cur_rel_x, cur_rel_y );
do{
if( abs(prev_x-cur_rel_x) > 5 || abs(prev_y-cur_rel_y) > 5 ){
tree_mouse_action( tv->tree,
BROWSER_MOUSE_HOLDING_1 | BROWSER_MOUSE_DRAG_ON,
cur_rel_x, cur_rel_y);
prev_x = cur_rel_x;
prev_y = cur_rel_y;
}
if( tv->redraw )
atari_treeview_redraw( tv );
/* sample mouse button state: */
graf_mkstate(&cur_rel_x, &cur_rel_y, &mbut, &dummy);
cur_rel_x = (cur_rel_x-work.g_x)+(slid->x_pos*slid->x_unit_px);
cur_rel_y = (cur_rel_y-work.g_y)+(slid->y_pos*slid->y_unit_px);
} while( mbut & 1 );
tree_drag_end(tv->tree, 0, tv->startdrag.x, tv->startdrag.y,
cur_rel_x, cur_rel_y );
gem_set_cursor(&gem_cursors.arrow);
}
}
}
NSTREEVIEW atari_treeview_create(uint32_t flags, GUIWIN *win,
guiwin_event_handler_f user_func)
{
struct guiwin_scroll_info_s *slid;
if( win == NULL )
return( NULL );
NSTREEVIEW new = malloc(sizeof(struct atari_treeview));
if (new == NULL)
return NULL;
memset( new, 0, sizeof(struct atari_treeview));
new->tree = tree_create(flags, &atari_tree_callbacks, new);
if (new->tree == NULL) {
free(new);
return NULL;
}
new->window = win;
new->user_func = user_func;
guiwin_set_event_handler(win, handle_event);
guiwin_set_user_data(win, (void*)new);
slid = guiwin_get_scroll_info(new->window);
slid->y_unit_px = 16;
slid->x_unit_px = 16;
return(new);
}
void atari_treeview_open( NSTREEVIEW tv )
{
if( tv->window != NULL ) {
tree_set_redraw(tv->tree, true);
}
}
void atari_treeview_close( NSTREEVIEW tv )
{
if( tv->window != NULL ) {
tree_set_redraw(tv->tree, false);
}
}
void atari_treeview_destroy( NSTREEVIEW tv )
{
if( tv != NULL ){
tv->disposing = true;
LOG(("tree: %p", tv));
if( tv->tree != NULL ) {
tree_delete(tv->tree);
tv->tree = NULL;
}
free( tv );
}
}
bool atari_treeview_mevent( NSTREEVIEW tv, browser_mouse_state bms, int x, int y)
{
GRECT work;
struct guiwin_scroll_info_s *slid;
if( tv == NULL )
return ( false );
guiwin_get_grect(tv->window, GUIWIN_AREA_CONTENT, &work);
slid = guiwin_get_scroll_info(tv->window);
int rx = (x-work.g_x)+(slid->x_pos*slid->x_unit_px);
int ry = (y-work.g_y)+(slid->y_pos*slid->y_unit_px);
tree_mouse_action(tv->tree, bms, rx, ry);
tv->click.x = rx;
tv->click.y = ry;
return( true );
}
void atari_treeview_redraw( NSTREEVIEW tv)
{
if (tv != NULL) {
if( tv->redraw && ((atari_plot_flags & PLOT_FLAG_OFFSCREEN) == 0) ) {
short todo[4];
GRECT work;
short handle = guiwin_get_handle(tv->window);
struct guiwin_scroll_info_s *slid;
guiwin_get_grect(tv->window, GUIWIN_AREA_CONTENT, &work);
slid = guiwin_get_scroll_info(tv->window);
struct redraw_context ctx = {
.interactive = true,
.background_images = true,
.plot = &atari_plotters
};
plot_set_dimensions(work.g_x, work.g_y, work.g_w, work.g_h);
if (plot_lock() == false)
return;
if( wind_get(handle, WF_FIRSTXYWH,
&todo[0], &todo[1], &todo[2], &todo[3] )!=0 ) {
while (todo[2] && todo[3]) {
short pxy[4];
pxy[0] = todo[0];
pxy[1] = todo[1];
pxy[2] = todo[0] + todo[2]-1;
pxy[3] = todo[1] + todo[3]-1;
vs_clip(atari_plot_vdi_handle, 1, (short*)&pxy);
/* convert screen to treeview coords: */
todo[0] = todo[0] - work.g_x + slid->x_pos*slid->x_unit_px;
todo[1] = todo[1] - work.g_y + slid->y_pos*slid->y_unit_px;
if( todo[0] < 0 ){
todo[2] = todo[2] + todo[0];
todo[0] = 0;
}
if( todo[1] < 0 ){
todo[3] = todo[3] + todo[1];
todo[1] = 0;
}
// TODO: get slider values
if (rc_intersect((GRECT *)&tv->rdw_area,(GRECT *)&todo)) {
tree_draw(tv->tree, -(slid->x_pos*slid->x_unit_px),
-(slid->y_pos*slid->y_unit_px),
todo[0], todo[1], todo[2], todo[3], &ctx
);
}
vs_clip(atari_plot_vdi_handle, 0, (short*)&pxy);
if (wind_get(handle, WF_NEXTXYWH,
&todo[0], &todo[1], &todo[2], &todo[3])==0) {
break;
}
}
} else {
plot_unlock();
return;
}
plot_unlock();
tv->redraw = false;
tv->rdw_area.g_x = 65000;
tv->rdw_area.g_y = 65000;
tv->rdw_area.g_w = -1;
tv->rdw_area.g_h = -1;
} else {
/* just copy stuff from the offscreen buffer */
}
}
}
/**
* Callback to force a redraw of part of the treeview window.
*
* \param x Min X Coordinate of area to be redrawn.
* \param y Min Y Coordinate of area to be redrawn.
* \param width Width of area to be redrawn.
* \param height Height of area to be redrawn.
* \param pw The treeview object to be redrawn.
*/
void atari_treeview_request_redraw(int x, int y, int w, int h, void *pw)
{
if ( pw != NULL ) {
NSTREEVIEW tv = (NSTREEVIEW) pw;
if( tv->redraw == false ){
tv->redraw = true;
tv->rdw_area.g_x = x;
tv->rdw_area.g_y = y;
tv->rdw_area.g_w = w;
tv->rdw_area.g_h = h;
} else {
/* merge the redraw area to the new area.: */
int newx1 = x+w;
int newy1 = y+h;
int oldx1 = tv->rdw_area.g_x + tv->rdw_area.g_w;
int oldy1 = tv->rdw_area.g_y + tv->rdw_area.g_h;
tv->rdw_area.g_x = MIN(tv->rdw_area.g_x, x);
tv->rdw_area.g_y = MIN(tv->rdw_area.g_y, y);
tv->rdw_area.g_w = ( oldx1 > newx1 ) ? oldx1 - tv->rdw_area.g_x : newx1 - tv->rdw_area.g_x;
tv->rdw_area.g_h = ( oldy1 > newy1 ) ? oldy1 - tv->rdw_area.g_y : newy1 - tv->rdw_area.g_y;
}
dbg_grect("atari_treeview_request_redraw", &tv->rdw_area);
}
}
/**
* Callback to notify us of a new overall tree size.
*
* \param tree The tree being resized.
* \param width The new width of the window.
* \param height The new height of the window.
* \param *pw The treeview object to be resized.
*/
void atari_treeview_resized(struct tree *tree, int width, int height, void *pw)
{
GRECT area;
if (pw != NULL) {
NSTREEVIEW tv = (NSTREEVIEW) pw;
if( tv->disposing )
return;
tv->extent.x = width;
tv->extent.y = height;
struct guiwin_scroll_info_s *slid = guiwin_get_scroll_info(tv->window);
guiwin_get_grect(tv->window, GUIWIN_AREA_CONTENT, &area);
slid->x_units = (width/slid->x_unit_px);
slid->y_units = (height/slid->y_unit_px);
/*printf("units content: %d, units viewport: %d\n", (height/slid->y_unit_px),
(area.g_h/slid->y_unit_px));*/
guiwin_update_slider(tv->window, GUIWIN_VH_SLIDER);
}
}
/**
* Callback to request that a section of the tree is scrolled into view.
*
* \param y The Y coordinate of top of the area in NS units.
* \param height The height of the area in NS units.
* \param *pw The treeview object affected.
*/
void atari_treeview_scroll_visible(int y, int height, void *pw)
{
/* we don't support dragging outside the treeview */
/* so we don't need to implement this? */
}
static void atari_treeview_get_grect(NSTREEVIEW tv, enum treeview_area_e mode,
GRECT *dest)
{
if (mode == TREEVIEW_AREA_CONTENT) {
guiwin_get_grect(tv->window, GUIWIN_AREA_CONTENT, dest);
}
else if (mode == TREEVIEW_AREA_TOOLBAR) {
guiwin_get_grect(tv->window, GUIWIN_AREA_TOOLBAR, dest);
}
}
/**
* Callback to return the tree window dimensions to the treeview system.
*
* \param *width Return the window width.
* \param *height Return the window height.
* \param *pw The treeview object to use.
*/
void atari_treeview_get_dimensions(int *width, int *height,
void *pw)
{
if (pw != NULL && (width != NULL || height != NULL)) {
NSTREEVIEW tv = (NSTREEVIEW) pw;
GRECT work;
atari_treeview_get_grect(tv, TREEVIEW_AREA_CONTENT, &work);
*width = work.g_w;
*height = work.g_h;
}
}
/**
* Translates a content_type to the name of a respective icon
*
* \param content_type content type
* \param buffer buffer for the icon name
*/
void tree_icon_name_from_content_type(char *buffer, content_type type)
{
switch (type) {
case CONTENT_HTML:
case CONTENT_TEXTPLAIN:
case CONTENT_CSS:
case CONTENT_IMAGE:
default:
strcpy( buffer, "content.png" );
break;
}
}
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