TextReader v1.0: plaint text reader, supports different font size and different encodings, uses ini file to save settings

git-svn-id: svn://kolibrios.org@5819 a494cfbc-eb01-0410-851d-a64ba20cac60

programs/cmm/textreader/Tupfile.lua

@@ -0,0 +1,6 @@
+if tup.getconfig("NO_CMM") ~= "" then return end
+if tup.getconfig("LANG") == "ru"
+then C_LANG = "LANG_RUS"
+else C_LANG = "LANG_ENG" -- this includes default case without config
+end
+tup.rule("textreader.c", "c-- /D=AUTOBUILD /D=$(C_LANG) %f" .. tup.getconfig("KPACK_CMD"), "textreader.com")

programs/cmm/textreader/compile.bat

@@ -0,0 +1,6 @@
+C-- "textreader.c"
+@del "textreader"
+@rename "textreader.com" "textreader"
+@del warning.txt
+@pause
+rem kpack textreader

programs/cmm/textreader/ini.h

@@ -0,0 +1,24 @@
+char ini_path[4096];
+char config_section[] = "Config";
+int encoding;
+
+void LoadIniSettings()
+{
+	strcpy(#ini_path, "/sys/settings/treader.ini");
+	ini_get_int stdcall   (#ini_path, #config_section, "FontSize",  14); font.size.text = EAX;
+	ini_get_int stdcall   (#ini_path, #config_section, "Encoding",  CH_CP866); encoding = EAX;
+	ini_get_int stdcall   (#ini_path, #config_section, "WinX", 150); Form.left = EAX;
+	ini_get_int stdcall   (#ini_path, #config_section, "WinY", 50); Form.top = EAX;
+	ini_get_int stdcall   (#ini_path, #config_section, "WinW", 640); Form.width = EAX;
+	ini_get_int stdcall   (#ini_path, #config_section, "WinH", 560); Form.height = EAX;
+}
+
+void SaveIniSettings()
+{
+	ini_set_int stdcall (#ini_path, #config_section, "FontSize", font.size.text);
+	ini_set_int stdcall (#ini_path, #config_section, "Encoding", encoding);
+	ini_set_int stdcall (#ini_path, #config_section, "WinX", Form.left);
+	ini_set_int stdcall (#ini_path, #config_section, "WinY", Form.top);
+	ini_set_int stdcall (#ini_path, #config_section, "WinW", Form.width);
+	ini_set_int stdcall (#ini_path, #config_section, "WinH", Form.height);
+}

programs/cmm/textreader/menu.h

@@ -0,0 +1,63 @@
+char stak[4096];
+
+byte action_buf;
+
+llist menu;
+
+void menu_rmb()
+{
+	proc_info MenuForm;
+	menu.ClearList();
+	while (charsets[menu.count]) menu.count++;
+	menu.SetSizes(2,2,140,menu.count*19,19);
+	SetEventMask(100111b);
+	_BEGIN_APPLICATION_MENU:
+	switch(WaitEvent())
+	{
+	case evMouse:
+		GetProcessInfo(#MenuForm, SelfInfo);
+		if (!CheckActiveProcess(MenuForm.ID)) ExitProcess();
+		mouse.get();
+		if (menu.ProcessMouse(mouse.x, mouse.y)) DrawMenuList();
+		if (mouse.lkm)&&(mouse.up) ItemClick();
+		break;		
+	case evKey:
+		GetKeys();
+		if (key_scancode==SCAN_CODE_ESC) ExitProcess();
+		if (key_scancode==SCAN_CODE_ENTER) ItemClick();
+		if (menu.ProcessKey(key_scancode)) DrawMenuList();
+		break;
+	case evReDraw:
+		DefineAndDrawWindow(Form.left+104,Form.top+29+SKIN.height,menu.w+2,menu.h+4,0x01, 0, 0, 0x01fffFFF);
+		DrawPopup(0,0,menu.w,menu.h+3,0, 0xE4DFE1,0x9098B0);
+		DrawMenuList();				
+	}
+	goto _BEGIN_APPLICATION_MENU;
+}
+
+void DrawMenuList()
+{
+	int N;
+	for (N=0; N<menu.count; N++;)
+	{
+		if (N==menu.current) 
+			DrawBar(menu.x, N*menu.line_h+menu.y, menu.w-3, menu.line_h, 0xFFFfff);
+		else
+		{
+			DrawBar(menu.x, N*menu.line_h+menu.y, menu.w-3, menu.line_h, 0xE4DFE1);
+			WriteText(19,N*menu.line_h+9,0x80,0xf2f2f2,charsets[N]);
+		}
+		WriteText(18,N*menu.line_h+8,0x80,0x000000,charsets[N]);
+	}
+	WriteText(5, encoding*menu.line_h+7, 0x80, 0x777777, "\x10");
+}
+
+void ItemClick()
+{
+	if (encoding!=menu.current)
+	{
+		encoding = menu.current;
+		action_buf = true;
+	}
+	ExitProcess();
+}

programs/cmm/textreader/textreader.c

@@ -0,0 +1,258 @@
+#define MEMSIZE 4096*20
+
+#include "../lib/font.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
+
+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;
+
+enum {
+	OPEN_FILE,
+	MAGNIFY_MINUS,
+	MAGNIFY_PLUS,
+	CHANGE_ENCODING,
+	RUN_EDIT,
+	SHOW_INFO,
+};
+
+#include "ini.h"
+#include "menu.h"
+
+void main()
+{   
+	byte btn;
+	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);
+	OpenDialog_init stdcall (#o_dialog);
+	font.no_bg_copy = true; font.color = 0; font.bg_color = 0xFFFFFF;
+	font.load("/sys/fonts/Tahoma.kf"); 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:
+      		mouse.get();
+      		list.wheel_size = 7;
+			if (list.MouseScroll(mouse.vert)) { DrawPage(); break; }
+			scrollbar_v_mouse (#scroll); if (list.first != scroll.position) { list.first = scroll.position; DrawPage(); }
+			break;
+		case evKey:
+			if (help_opened) { help_opened=false; DrawPage(); break; }
+			GetKeys();
+			if (key_scancode==059) goto _SHOW_INFO;
+			if (key_modifier&KEY_LCTRL) || (key_modifier&KEY_RCTRL) {
+				if (key_scancode==024) goto _OPEN_FILE;
+				if (key_scancode==SCAN_CODE_UP) goto _MAGNIFY_PLUS;
+				if (key_scancode==SCAN_CODE_DOWN) goto _MAGNIFY_MINUS;
+				if (key_scancode==018) goto _RUN_EDIT;
+				if (key_scancode==SCAN_CODE_TAB) goto _CHANGE_ENCODING;
+				break;
+			}
+			if (list.ProcessKey(key_scancode)) DrawPage();
+			break;
+		case evButton:
+			btn = GetButtonID();
+			if (btn==1) { SaveIniSettings(); ExitProcess(); }
+			btn-=10;
+			if (btn==OPEN_FILE) { _OPEN_FILE: OpenDialog_start stdcall (#o_dialog); OpenFile(#openfile_path); PreparePage(); }
+			else if (btn==MAGNIFY_PLUS)  { _MAGNIFY_PLUS: font.size.text++; if(!font.changeSIZE())font.size.text--; else PreparePage(); }
+			else if (btn==MAGNIFY_MINUS) { _MAGNIFY_MINUS: font.size.text--; if(!font.changeSIZE())font.size.text++; else PreparePage(); }
+			else if (btn==CHANGE_ENCODING) { _CHANGE_ENCODING: CreateThread(#menu_rmb,#stak+4092); break; }
+			else if (btn==RUN_EDIT) { _RUN_EDIT: io.run("/sys/tinypad",#param); }
+			else if (btn==SHOW_INFO) { _SHOW_INFO: ShowAbout(); }
+			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, 8);
+	DrawToolbarButton(MAGNIFY_PLUS, 42);
+	DrawToolbarButton(MAGNIFY_MINUS, 67);
+	DrawToolbarButton(CHANGE_ENCODING, 101);
+	DrawToolbarButton(RUN_EDIT, 135);
+	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.line_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;
+	char ch_width[255];
+	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++) ch_width[i] = font.symbol_size(i);
+	//get font buffer height
+	for (bufoff=io.buffer_data; ESBYTE[bufoff]; bufoff++)
+	{
+		ch = ESBYTE[bufoff];
+		line_length += ch_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.line_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 += ch_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.line_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, 26-1, 24-1, 10+image_id + BT_HIDE, 0);
+	img_draw stdcall(skin.image, x, 5, 26, 24, 0, image_id*24);
+}
+
+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 = "This is a plain text reader.\nTry to open some text file.";
+		strcpy(#title, "Text Reader"); 
+	}
+	if (encoding!=CH_CP866) ChangeCharset(charsets[encoding], "CP866", io.buffer_data);
+	list.KeyHome();
+	list.ClearList();
+}
+
+
+
+char *about[] = {
+	"Text Reader v1.0",
+	"Idea: Leency, punk_joker",
+	"Code: Leency, 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]);
+}