mirror of
https://github.com/netsurf-browser/netsurf
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137 lines
4.5 KiB
C
Executable File
137 lines
4.5 KiB
C
Executable File
/*
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* Copyright 2010 Ole Loots <ole@monochrom.net>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef NS_ATARI_BROWSER_H
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#define NS_ATARI_BROWSER_H
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/*
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Each browser_window in the Atari Port is represented by an struct s_browser,
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which cosnist mainly of an WinDom COMPONENT.
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*/
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/*
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BROWSER_SCROLL_SVAL
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The small scroll inc. value (used by scroll-wheel, arrow click):
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*/
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#define BROWSER_SCROLL_SVAL 64
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/*
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MAX_REDRW_SLOTS
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This is the number of redraw requests that an browser window can queue.
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If a redraw is scheduled and all slots are used, the rectangle will
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be merged to one of the existing slots.
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*/
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#define MAX_REDRW_SLOTS 32
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enum browser_rect
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{
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BR_CONTENT = 1,
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BR_FULL = 2,
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BR_HSLIDER = 3,
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BR_VSLIDER = 4
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};
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/*
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This struct contains info of current browser viewport scroll
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and the scroll which is requested. If a scroll is requested,
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the field required is set to true.
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*/
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struct s_scroll_info
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{
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POINT requested;
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POINT current;
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bool required;
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};
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/*
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This struct holds information of the cursor within the browser
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viewport.
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*/
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struct s_caret
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{
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GRECT requested;
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GRECT current;
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bool redraw;
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};
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/*
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This struct holds scheduled redraw requests.
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*/
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struct s_browser_redrw_info
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{
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BBOX areas[MAX_REDRW_SLOTS];
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short areas_used;
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BBOX area; /* used for clipping of content redraw */
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};
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/*
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This is the actual browser widget, containings GUI elements and
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the current state of the browser widget.
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*/
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struct s_browser
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{
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int type;
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COMPONENT * comp;
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WINDOW * compwin;
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struct browser_window * bw;
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struct s_scroll_info scroll;
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struct s_browser_redrw_info redraw;
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struct s_caret caret;
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bool attached;
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};
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struct s_browser * browser_create( struct gui_window * gw, struct browser_window * clone, struct browser_window *bw, int lt, int w, int flex );
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bool browser_destroy( struct s_browser * b );
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void browser_get_rect( struct gui_window * gw, enum browser_rect type, LGRECT * out);
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bool browser_input( struct gui_window * gw, unsigned short nkc ) ;
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void browser_redraw( struct gui_window * gw );
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void browser_set_content_size(struct gui_window * gw, int w, int h);
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void browser_scroll( struct gui_window * gw, short MODE, int value, bool abs );
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struct gui_window * browser_find_root( struct gui_window * gw );
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static void browser_process_scroll( struct gui_window * gw, LGRECT bwrect );
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bool browser_redraw_required( struct gui_window * gw);
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/*
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This queues an redraw to one of the slots.
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The following strategy is used:
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1. It checks if the rectangle to be scheduled is within one of the
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already queued bboxes. If yes, it will return.
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2. It checks for an intersection, and it will merge the rectangle to
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already queued rectangle where it fits best.
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3. it tries to put the rectangle into one available slot.
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4. if no slot is available, it will simply merge the new rectangle with
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the last available slot.
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*/
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void browser_redraw_caret( struct gui_window * gw, GRECT * area );
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static void browser_redraw_content( struct gui_window * gw, int xoff, int yoff );
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/* update loc / size of the browser widgets: */
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void browser_update_rects(struct gui_window * gw );
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void browser_schedule_redraw_rect(struct gui_window * gw, short x, short y, short w, short h);
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void browser_schedule_redraw(struct gui_window * gw, short x, short y, short w, short h );
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static void __CDECL browser_evnt_resize( COMPONENT * c, long buff[8], void * data);
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static void __CDECL browser_evnt_destroy( COMPONENT * c, long buff[8], void * data);
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static void __CDECL browser_evnt_mbutton( WINDOW * c, short buff[8], void * data);
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static void __CDECL browser_evnt_arrowed( WINDOW *win, short buff[8], void * data);
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static void __CDECL browser_evnt_slider( WINDOW *win, short buff[8], void * data);
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static void __CDECL browser_evnt_redraw( COMPONENT * c, long buff[8], void * data);
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static void __CDECL browser_evnt_redraw_x( WINDOW * c, short buff[8], void * data);
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#endif
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