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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 <windom.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 "cflib.h"
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 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 evnt_tv_keybd( WINDOW *win, short buff[8], void * data )
{
bool r=false;
long kstate = 0;
long kcode = 0;
long ucs4;
long ik;
unsigned short nkc = 0;
unsigned short nks = 0;
unsigned char ascii;
NSTREEVIEW tv = (NSTREEVIEW) data;
kstate = evnt.mkstate;
kcode = evnt.keybd;
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 evnt_tv_redraw( WINDOW *win, short buff[8], void * data )
{
GRECT work, clip;
NSTREEVIEW tv = (NSTREEVIEW) data;
if( tv == NULL )
return;
WindGetGrect( win, WF_WORKXYWH, &work );
clip = work;
if ( !rc_intersect( (GRECT*)&buff[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 ) {
atari_treeview_request_redraw(
win->xpos*win->w_u + clip.g_x,
win->ypos*win->h_u + clip.g_y,
clip.g_w, clip.g_h, tv
);
}
}
static void __CDECL evnt_tv_mbutton( WINDOW *win, short buff[8], void * data )
{
GRECT work;
NSTREEVIEW tv = (NSTREEVIEW) data;
if( tv == NULL )
return;
if( evnt.mbut & 2 ) {
/* do not handle right click */
return;
}
WindGetGrect( tv->window, WF_WORKXYWH, &work );
/* mouse click relative origin: */
short origin_rel_x = (evnt.mx-work.g_x)+(win->xpos*win->w_u);
short origin_rel_y = (evnt.my-work.g_y)+(win->ypos*win->h_u);
if( origin_rel_x >= 0 && origin_rel_y >= 0
&& evnt.mx < work.g_x + work.g_w
&& evnt.my < work.g_y + work.g_h )
{
int bms;
bool ignore=false;
short cur_rel_x, cur_rel_y, dummy, mbut;
if( evnt.nb_click == 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( evnt.nb_click == 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)+(win->xpos*win->w_u);
cur_rel_y = (cur_rel_y-work.g_y)+(win->ypos*win->h_u);
} 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, WINDOW *win )
{
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;
win->w_u = 16;
win->h_u = 16;
EvntDataAdd( new->window, WM_XBUTTON, evnt_tv_mbutton, new, EV_BOT );
EvntDataAttach( new->window, WM_REDRAW, evnt_tv_redraw, new );
EvntDataAttach( new->window, WM_XKEYBD, evnt_tv_keybd, new );
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)
{
if( tv == NULL )
return ( false );
GRECT work;
WindGetGrect( tv->window, WF_WORKXYWH, &work );
int rx = (x-work.g_x)+(tv->window->xpos*tv->window->w_u);
int ry = (y-work.g_y)+(tv->window->ypos*tv->window->h_u);
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;
WindGetGrect( tv->window, WF_WORKXYWH, &work );
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;
todo[0] = work.g_x;
todo[1] = work.g_y;
todo[2] = todo[0] + work.g_w-1;
todo[3] = todo[1] + work.g_h-1;
vs_clip(atari_plot_vdi_handle, 1, (short*)&todo );
if( wind_get(tv->window->handle, WF_FIRSTXYWH,
&todo[0], &todo[1], &todo[2], &todo[3] )!=0 ) {
while (todo[2] && todo[3]) {
/* convert screen to treeview coords: */
todo[0] = todo[0] - work.g_x + tv->window->xpos*tv->window->w_u;
todo[1] = todo[1] - work.g_y + tv->window->ypos*tv->window->h_u;
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;
}
if (rc_intersect((GRECT *)&tv->rdw_area,(GRECT *)&todo)) {
tree_draw(tv->tree, -tv->window->xpos*16, -tv->window->ypos*16,
todo[0], todo[1], todo[2], todo[3], &ctx
);
}
if (wind_get(tv->window->handle, WF_NEXTXYWH,
&todo[0], &todo[1], &todo[2], &todo[3])==0) {
break;
}
}
} else {
plot_unlock();
return;
}
plot_unlock();
vs_clip(atari_plot_vdi_handle, 0, (short*)&todo);
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;
}
}
}
/**
* 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)
{
if (pw != NULL) {
NSTREEVIEW tv = (NSTREEVIEW) pw;
if( tv->disposing )
return;
tv->extent.x = width;
tv->extent.y = height;
tv->window->ypos_max = (height / tv->window->w_u)+0.5;
tv->window->xpos_max = (width / tv->window->h_u)+0.5;
WindSlider( tv->window, HSLIDER|VSLIDER );
}
}
/**
* 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? */
}
/**
* 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;
WindGetGrect( tv->window, WF_WORKXYWH, &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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