kolibrios/programs/cmm/textreader/textreader.c

408 lines
8.8 KiB
C
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#define MEMSIZE 4096*20
#include "../lib/font.h"
#include "../lib/io.h"
#include "../lib/gui.h"
#include "../lib/list_box.h"
#include "../lib/obj/box_lib.h"
#include "../lib/obj/libini.h"
#include "../lib/obj/iconv.h"
#include "../lib/obj/proc_lib.h"
#include "../lib/patterns/libimg_load_skin.h"
#include "../lib/patterns/simple_open_dialog.h"
#define TOOLBAR_H 34
#define TOOLBAR_ICON_WIDTH 26
#define TOOLBAR_ICON_HEIGHT 24
#define TOOLBAR_OPEN_FILE_LEFT 8
#define TOOLBAR_MAGNIFY_PLUS_LEFT 42
#define TOOLBAR_MAGNIFY_MINUS_LEFT 67
#define TOOLBAR_CHANGE_ENCODING_LEFT 101
#define TOOLBAR_RUN_EDIT_LEFT 135
#define DEFAULT_FONT "/sys/fonts/Tahoma.kf"
#define DEFAULT_EDITOR "/sys/tinypad"
#define INTRO_TEXT "This is a plain text reader.\nTry to open some text file."
char default_dir[] = "/rd/1";
od_filter filter2 = {0,0};
scroll_bar scroll = { 15,200,398,44,0,2,115,15,0,0xeeeeee,0xBBBbbb,0xeeeeee,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1};
llist list;
proc_info Form;
char title[4196];
byte help_opened = false;
char char_width[255];
dword line_offset;
#define DWORD 4;
enum {
OPEN_FILE = 10,
MAGNIFY_MINUS,
MAGNIFY_PLUS,
CHANGE_ENCODING,
RUN_EDIT,
SHOW_INFO,
};
#include "ini.h"
#include "menu.h"
void InitDlls()
{
load_dll(boxlib, #box_lib_init, 0);
load_dll(libio, #libio_init, 1);
load_dll(libimg, #libimg_init, 1);
load_dll(libini, #lib_init, 1);
load_dll(iconv_lib, #iconv_open, 0);
load_dll(Proc_lib, #OpenDialog_init,0);
}
void EventShowInfo()
{
ShowAbout();
}
void EventOpenFile()
{
OpenDialog_start stdcall (#o_dialog);
OpenFile(#openfile_path);
PreparePage();
}
void EventMagnifyPlus()
{
font.size.text++;
if(!font.changeSIZE())
font.size.text--;
else
PreparePage();
}
void EventMagnifyMinus()
{
font.size.text--;
if(!font.changeSIZE())
font.size.text++;
else
PreparePage();
}
void EventRunEdit()
{
io.run(DEFAULT_EDITOR, #param);
}
void EventChangeEncoding()
{
CreateThread(#menu_rmb,#stak+4092);
}
void HandleMouseEvent()
{
mouse.get();
list.wheel_size = 7;
if (list.MouseScroll(mouse.vert)) {
DrawPage();
return;
}
scrollbar_v_mouse (#scroll);
if (list.first != scroll.position) {
list.first = scroll.position;
DrawPage();
}
}
void HandleKeyEvent()
{
if (help_opened) {
help_opened = false;
DrawPage();
return;
}
GetKeys();
if (key_scancode==059) {
EventShowInfo();
return;
}
if (key_modifier & KEY_LCTRL) || (key_modifier & KEY_RCTRL) {
switch (key_scancode)
{
case 024:
EventOpenFile();
break;
case SCAN_CODE_UP:
EventMagnifyPlus();
break;
case SCAN_CODE_DOWN:
EventMagnifyMinus();
break;
case 018:
EventRunEdit();
break;
case SCAN_CODE_TAB:
EventChangeEncoding();
break;
}
return;
}
if (list.ProcessKey(key_scancode))
DrawPage();
}
void HandleButtonEvent()
{
byte btn = GetButtonID();
if (btn==1) {
SaveIniSettings();
ExitProcess();
}
btn-=10;
switch(btn)
{
case OPEN_FILE:
EventOpenFile();
break;
case MAGNIFY_PLUS:
EventMagnifyPlus();
break;
case MAGNIFY_MINUS:
EventMagnifyMinus();
break;
case CHANGE_ENCODING:
EventChangeEncoding();
break;
case RUN_EDIT:
EventRunEdit();
break;
case SHOW_INFO:
EventShowInfo();
break;
}
}
void main()
{
InitDlls();
OpenDialog_init stdcall (#o_dialog);
font.no_bg_copy = true;
font.color = 0;
font.bg_color = 0xFFFFFF;
font.load(DEFAULT_FONT);
if (!font.data) {
io.run("/sys/@notify","'Error: Font is not loaded.' -E");
ExitProcess();
}
Libimg_LoadImage(#skin, abspath("toolbar.png"));
LoadIniSettings();
OpenFile(#param);
list.no_selection = true;
SetEventMask(10000000000000000000000001100111b);
loop()
{
switch(WaitEvent())
{
case evMouse:
HandleMouseEvent();
break;
case evKey:
HandleKeyEvent();
break;
case evButton:
HandleButtonEvent();
break;
case evReDraw:
if (action_buf) {
OpenFile(#param);
PreparePage();
action_buf = false;
};
draw_window();
}
}
}
void draw_window()
{
DefineAndDrawWindow(Form.left,Form.top,Form.width,Form.height,0x73,0,#title);
GetProcessInfo(#Form, SelfInfo);
if (Form.status_window>2) return;
if (Form.width < 200) { MoveSize(OLD,OLD,200,OLD); return; }
if (Form.height < 200) { MoveSize(OLD,OLD,OLD,200); return; }
DrawBar(0, 0, Form.cwidth, TOOLBAR_H - 1, 0xe1e1e1);
DrawBar(0, TOOLBAR_H - 1, Form.cwidth, 1, 0x7F7F7F);
DrawToolbarButton(OPEN_FILE, TOOLBAR_OPEN_FILE_LEFT);
DrawToolbarButton(MAGNIFY_PLUS, TOOLBAR_MAGNIFY_PLUS_LEFT);
DrawToolbarButton(MAGNIFY_MINUS, TOOLBAR_MAGNIFY_MINUS_LEFT);
DrawToolbarButton(CHANGE_ENCODING, TOOLBAR_CHANGE_ENCODING_LEFT);
DrawToolbarButton(RUN_EDIT, TOOLBAR_RUN_EDIT_LEFT);
DrawToolbarButton(SHOW_INFO, Form.cwidth - 34);
if ((Form.cwidth-scroll.size_x-1 == list.w) &&
(Form.cheight-TOOLBAR_H == list.h) &&
(list.count)
)
{
DrawPage();
} else {
PreparePage();
}
DrawRectangle(scroll.start_x, scroll.start_y, scroll.size_x, scroll.size_y-1, scroll.bckg_col);
}
void DrawPage()
{
_PutImage(list.x,list.y,list.w,list.h,list.first*list.item_h*list.w*3 + font.buffer);
DrawScroller();
}
void PreparePage()
{
char line[4096]=0;
dword line_start;
byte ch;
dword bufoff;
dword line_length=30;
dword stroka_y = 5;
dword stroka=0;
int i, srch_pos;
font.changeSIZE();
list.w = Form.cwidth-scroll.size_x-1;
//get font chars width, need to increase performance
for (i=0; i<256; i++) char_width[i] = font.symbol_size(i);
//get font buffer height
for (bufoff=io.buffer_data; ESBYTE[bufoff]; bufoff++)
{
ch = ESBYTE[bufoff];
line_length += char_width[ch];
if (line_length>=list.w) || (ch==10) {
srch_pos = bufoff;
loop()
{
if (__isWhite(ESBYTE[srch_pos])) { bufoff=srch_pos+1; break; } //normal word-break
if (srch_pos == line_start) break; //no white space found in whole line
srch_pos--;
}
line_start = bufoff;
line_length = 30;
stroka++;
}
}
//draw text in buffer
list.count = stroka+2;
list.SetSizes(0, TOOLBAR_H, list.w, Form.cheight-TOOLBAR_H, font.size.text+1);
if (list.count < list.visible) list.count = list.visible;
font.size.height = list.count+1*list.item_h;
font.buffer_size = 0;
line_length = 30;
line_start = io.buffer_data;
for (bufoff=io.buffer_data; ESBYTE[bufoff]; bufoff++)
{
ch = ESBYTE[bufoff];
line_length += char_width[ch];
if (line_length>=list.w) || (ch==10)
{
//set word break
srch_pos = bufoff;
loop()
{
if (__isWhite(ESBYTE[srch_pos])) { bufoff=srch_pos+1; break; } //normal word-break
if (srch_pos == line_start) break; //no white space found in whole line
srch_pos--;
}
i = bufoff-line_start;
strlcpy(#line, line_start, i);
font.prepare_buf(8,stroka_y,list.w,font.size.height, #line);
stroka_y += list.item_h;
line_start = bufoff;
line_length = 30;
}
}
font.prepare_buf(8,stroka_y,list.w,font.size.height, line_start);
SmoothFont(font.buffer, font.size.width, font.size.height);
DrawPage();
}
void DrawToolbarButton(char image_id, int x)
{
DefineButton(x, 5, TOOLBAR_ICON_WIDTH-1, TOOLBAR_ICON_HEIGHT-1, 10+image_id + BT_HIDE, 0);
img_draw stdcall(skin.image, x, 5, TOOLBAR_ICON_WIDTH, TOOLBAR_ICON_HEIGHT, 0, image_id*TOOLBAR_ICON_HEIGHT);
}
void DrawScroller()
{
scroll.max_area = list.count;
scroll.cur_area = list.visible;
scroll.position = list.first;
scroll.all_redraw = 0;
scroll.start_x = list.x + list.w;
scroll.start_y = list.y;
scroll.size_y = list.h;
scroll.start_x = list.x + list.w;
scrollbar_v_draw(#scroll);
}
void OpenFile(dword f_path)
{
int tmp;
if (ESBYTE[f_path]) {
strcpy(#param, f_path);
io.read(#param);
strcpy(#title, #param);
strcat(#title, " - Text Reader");
}
else {
if (list.count) return;
io.buffer_data = INTRO_TEXT;
strcpy(#title, "Text Reader");
}
if (encoding!=CH_CP866) ChangeCharset(charsets[encoding], "CP866", io.buffer_data);
list.KeyHome();
list.ClearList();
}
char *about[] = {
"Text Reader v1.01",
"Idea: Leency, punk_joker",
"Code: Leency, Veliant, KolibriOS Team",
" ",
"Hotkeys:",
"Ctrl+O - open file",
"Ctrl+Up - bigger font",
"Ctrl+Down - smaller font",
"Ctrl+Tab - select charset",
"Ctrl+E - edit current document",
" ",
"Press any key...",
0
};
ShowAbout() {
int i;
help_opened = true;
DrawBar(list.x, list.y, list.w, list.h, 0xFFFfff);
WriteText(list.x + 10, list.y + 10, 10000001b, 0x555555, about[0]);
for (i=1; about[i]; i++) WriteText(list.x + 10, i+1*20 + list.y, 10110000b, 0, about[i]);
}