Usermode/GUITerminal - Progressing, compiles and runs but stubbed
[tpg/acess2.git] / Usermode / Applications / gui_shell_src / main.c
1 /*
2  * Acess GUI Terminal
3  * - By John Hodge (thePowersGang)
4  *
5  * main.c
6  * - Core
7  */
8 #include <axwin3/axwin.h>
9 #include <axwin3/menu.h>
10 #include <axwin3/richtext.h>
11 #include <axwin3/keysyms.h>
12 #include <stdio.h>
13 #include <acess/sys.h>
14 #include "include/display.h"
15 #include "include/vt100.h"
16 #include <string.h>
17 #include <unicode.h>
18
19 // === PROTOTYPES ===
20  int    main(int argc, char *argv[], const char **envp);
21  int    Term_KeyHandler(tHWND Window, int bPress, uint32_t KeySym, uint32_t Translated);
22  int    Term_MouseHandler(tHWND Window, int bPress, int Button, int Row, int Col);
23 void    Term_HandleOutput(int Len, const char *Buf);
24
25 // === GLOBALS ===
26 tHWND   gMainWindow;
27 tHWND   gMenuWindow;
28  int    giChildStdin;
29  int    giChildStdout;
30
31 // === CODE ===
32 int main(int argc, char *argv[], const char **envp)
33 {
34         AxWin3_Connect(NULL);
35         
36         // --- Build up window
37         gMainWindow = AxWin3_RichText_CreateWindow(NULL, 0);
38         AxWin3_SetWindowTitle(gMainWindow, "Terminal"); // TODO: Update title with other info
39
40         gMenuWindow = AxWin3_Menu_Create(gMainWindow);
41         AxWin3_Menu_AddItem(gMenuWindow, "Copy\tWin+C", NULL, NULL, 0, NULL);
42         AxWin3_Menu_AddItem(gMenuWindow, "Paste\tWin+V", NULL, NULL, 0, NULL);
43         // TODO: Populate menu  
44
45
46         // TODO: Tabs?
47         
48         AxWin3_RichText_SetKeyHandler   (gMainWindow, Term_KeyHandler);
49         AxWin3_RichText_SetMouseHandler (gMainWindow, Term_MouseHandler);
50         AxWin3_RichText_SetDefaultColour(gMainWindow, 0xFFFFFF);
51         AxWin3_RichText_SetBackground   (gMainWindow, 0x000000);
52         AxWin3_RichText_SetFont         (gMainWindow, "#monospace", 10);
53         AxWin3_RichText_SetCursorPos    (gMainWindow, 0, 0);
54         AxWin3_RichText_SetCursorType   (gMainWindow, AXWIN3_RICHTEXT_CURSOR_INV);
55         AxWin3_RichText_SetCursorBlink  (gMainWindow, 1);
56
57         // <testing>
58         AxWin3_RichText_SetLineCount(gMainWindow, 3);
59         AxWin3_RichText_SendLine(gMainWindow, 0, "First line!");
60         AxWin3_RichText_SendLine(gMainWindow, 2, "Third line! \x01""ff0000A red");
61         // </testing>
62
63         AxWin3_ResizeWindow(gMainWindow, 80*8, 25*16);
64         AxWin3_MoveWindow(gMainWindow, 20, 50);
65         AxWin3_ShowWindow(gMainWindow, 1);
66         AxWin3_FocusWindow(gMainWindow);
67
68         // Spawn shell
69         giChildStdin = _SysOpen("/Devices/fifo/anon", OPENFLAG_READ|OPENFLAG_WRITE);
70         giChildStdout = _SysOpen("/Devices/fifo/anon", OPENFLAG_READ|OPENFLAG_WRITE);
71         if( giChildStdout == -1 || giChildStdin == -1 ) {
72                 perror("Oh, fsck");
73                 _SysDebug("out,in = %i,%i", giChildStdout, giChildStdin);
74                 return -1;
75         }
76
77         {
78                  int    fds[] = {giChildStdin, giChildStdout, giChildStdout};
79                 const char      *argv[] = {"CLIShell", NULL};
80                 int pid = _SysSpawn("/Acess/Bin/CLIShell", argv, envp, 3, fds, NULL);
81                 if( pid < 0 )
82                         _SysDebug("ERROR: Shell spawn failed");
83         }
84
85         // Main loop
86         for( ;; )
87         {
88                 fd_set  fds;
89                 
90                 FD_ZERO(&fds);
91                 FD_SET(giChildStdout, &fds);
92                 AxWin3_MessageSelect(giChildStdout + 1, &fds);
93                 
94                 if( FD_ISSET(giChildStdout, &fds) )
95                 {
96                         _SysDebug("Activity on child stdout");
97                         // Read and update screen
98                         char    buf[32];
99                         int len = _SysRead(giChildStdout, buf, sizeof(buf));
100                         if( len <= 0 )  break;
101                         
102                         Term_HandleOutput(len, buf);
103                 }
104         }
105
106         return 0;
107 }
108
109 int Term_KeyHandler(tHWND Window, int bPress, uint32_t KeySym, uint32_t Translated)
110 {
111         static int      ctrl_state = 0;
112
113         // Handle modifiers
114         #define _bitset(var,bit,set) do{if(set)var|=1<<(bit);else var&=1<<(bit);}while(0)
115         switch(KeySym)
116         {
117         case KEYSYM_LEFTCTRL:
118                 _bitset(ctrl_state, 0, bPress);
119                 return 0;
120         case KEYSYM_RIGHTCTRL:
121                 _bitset(ctrl_state, 0, bPress);
122                 return 0;
123         }
124         #undef _bitset
125
126         // Handle shortcuts
127         // - Ctrl-A -- Ctrl-Z
128         if( ctrl_state && KeySym >= KEYSYM_a && KeySym <= KEYSYM_z )
129         {
130                 Translated = KeySym - KEYSYM_a + 1;
131         }
132
133         if( Translated )
134         {
135                 char    buf[6];
136                  int    len;
137                 
138                 // Encode and send
139                 len = WriteUTF8(buf, Translated);
140                 
141                 _SysWrite(giChildStdin, buf, len);
142                 
143                 return 0;
144         }
145         
146         // No translation, look for escape sequences to send
147         const char *str = NULL;
148         switch(KeySym)
149         {
150         case KEYSYM_LEFTARROW:
151                 str = "\x1b[D";
152                 break;
153         }
154         if( str )
155         {
156                 _SysWrite(giChildStdin, str, strlen(str));
157         }
158         return 0;
159 }
160
161 int Term_MouseHandler(tHWND Window, int bPress, int Button, int Row, int Col)
162 {
163         return 0;
164 }
165
166 void Term_HandleOutput(int Len, const char *Buf)
167 {
168         // TODO: Handle graphical / accelerated modes
169
170          int    ofs = 0;
171          int    esc_len = 0;
172
173         while( ofs < Len )
174         {
175                 esc_len = Term_HandleVT100(Len - ofs, Buf + ofs);
176                 if( esc_len < 0 ) {
177                         Display_AddText(-esc_len, Buf + ofs);
178                         esc_len = -esc_len;
179                 }
180                 Len -= esc_len;
181                 ofs += esc_len;
182         }
183         
184         Display_Flush();
185 }
186

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