*/
#include <common.h>
#include <wm_renderer.h>
+#include <wm_messages.h>
#include <richtext_messages.h>
+#include <stdio.h> // sscanf
+#include <string.h> // memcpy
+
+#define LINES_PER_BLOCK 30
+
+// === TYPES ===
+typedef struct sRichText_Line
+{
+ struct sRichText_Line *Next;
+ struct sRichText_Line *Prev;
+ int Num;
+ // TODO: Pre-rendered cache?
+ short ByteLength;
+ short Space;
+ char Data[];
+} tRichText_Line;
+typedef struct sRichText_Window
+{
+ int DispLines, DispCols;
+ int FirstVisRow, FirstVisCol;
+ int nLines, nCols;
+ int CursorRow, CursorCol;
+ tRichText_Line *FirstLine;
+ tRichText_Line *FirstVisLine;
+ tColour DefaultFG;
+ tColour DefaultBG;
+ tFont *Font;
+
+ short LineHeight;
+} tRichText_Window;
// === PROTOTYPES ===
int Renderer_RichText_Init(void);
tWindow *Renderer_RichText_Create(int Flags);
+void Renderer_RichText_Destroy(tWindow *Window);
void Renderer_RichText_Redraw(tWindow *Window);
+ int Renderer_RichText_HandleIPC_SetAttr(tWindow *Window, size_t Len, const void *Data);
+ int Renderer_RichText_HandleIPC_WriteLine(tWindow *Window, size_t Len, const void *Data);
int Renderer_RichText_HandleMessage(tWindow *Target, int Msg, int Len, const void *Data);
// === GLOBALS ===
tWMRenderer gRenderer_RichText = {
.Name = "RichText",
.CreateWindow = Renderer_RichText_Create,
+ .DestroyWindow = Renderer_RichText_Destroy,
.Redraw = Renderer_RichText_Redraw,
- .HandleMessage = Renderer_RichText_HandleMessage
+ .HandleMessage = Renderer_RichText_HandleMessage,
+ .nIPCHandlers = N_IPC_RICHTEXT,
+ .IPCHandlers = {
+ [IPC_RICHTEXT_SETATTR] = Renderer_RichText_HandleIPC_SetAttr,
+ [IPC_RICHTEXT_WRITELINE] = Renderer_RichText_HandleIPC_WriteLine
+ }
};
// === CODE ===
tWindow *Renderer_RichText_Create(int Flags)
{
- return NULL;
+ tRichText_Window *info;
+ tWindow *ret = WM_CreateWindowStruct( sizeof(*info) );
+ if(!ret) return NULL;
+ info = ret->RendererInfo;
+
+ // Initialise font (get an idea of dimensions)
+ int h;
+ WM_Render_GetTextDims(NULL, "yY!", 3, NULL, &h);
+ info->LineHeight = h;
+
+ return ret;
+}
+
+void Renderer_RichText_Destroy(tWindow *Window)
+{
+ tRichText_Window *info = Window->RendererInfo;
+
+ // TODO: Is locking needed? WM_Destroy should have taken us off the render tree
+ while( info->FirstLine )
+ {
+ tRichText_Line *line = info->FirstLine;
+ info->FirstLine = line->Next;
+
+ free(line);
+ }
+
+ if( info->Font )
+ _SysDebug("RichText_Destroy - TODO: Free font");
+}
+
+static inline int Renderer_RichText_RenderText_Act(tWindow *Window, tRichText_Window *info, int X, int Row, const char *Text, int Bytes, tColour FG, tColour BG, int Flags)
+{
+ int rwidth;
+ // TODO: Fill only what is needed? What about the rest of the line?
+ WM_Render_DrawRect(Window, X, Row*info->LineHeight,
+ Window->W - X, info->LineHeight,
+ BG
+ );
+ // TODO: Bold, Italic, Underline
+ rwidth = WM_Render_DrawText(Window,
+ X, Row*info->LineHeight,
+ Window->W - X, info->LineHeight,
+ info->Font, FG,
+ Text, Bytes
+ );
+ return rwidth;
+}
+
+void Renderer_RichText_RenderText(tWindow *Window, int Line, const char *Text)
+{
+ tRichText_Window *info = Window->RendererInfo;
+ tColour fg = info->DefaultFG;
+ tColour bg = info->DefaultBG;
+ int flagset = 0;
+ int bRender = 0;
+ int curx = 0;
+ const char *oldtext = Text;
+
+ for( int i = 0; curx < Window->W; i ++ )
+ {
+ char ch, flags;
+ int len;
+
+ if( i == info->FirstVisCol )
+ bRender = 1;
+
+ ch = *Text++;
+ if( ch == 0 ) break;
+
+ // Not an escape - move along
+ if( ch > 4 )
+ continue ;
+
+ if( bRender ) {
+ // Render previous characters
+ curx += Renderer_RichText_RenderText_Act(Window, info, curx, Line,
+ oldtext, Text - oldtext - 1, fg, bg, flagset);
+ if( curx >= Window->W )
+ break;
+ }
+ oldtext = Text;
+ switch(ch)
+ {
+ case 1: // FG Select (\1 RRGGBB)
+ if( sscanf(Text, "%6x%n", &fg, &len) != 1 || len != 6 ) {
+ // Bad client
+ _SysDebug("foreground scanf failed - len=%i", len);
+ len = 0;
+ }
+ Text += len;
+ oldtext = Text;
+ _SysDebug("FG update to %x", fg);
+ break ;
+ case 2: // BG Select (\2 RRGGBB)
+ if( sscanf(Text, "%6x%n", &bg, &len) != 1 || len != 6 ) {
+ // Bad client
+ _SysDebug("background scanf failed - len=%i", len);
+ len = 0;
+ }
+ Text += len;
+ oldtext = Text;
+ _SysDebug("BG update to %x", bg);
+ break ;
+ case 3: // Flagset (0,it,uline,bold)
+ if( sscanf(Text, "%1hhx%n", &flags, &len) != 1 || len != 1 ) {
+ // Bad client
+ _SysDebug("Flagset scanf failed - len=%i", len);
+ }
+ flagset = flags & 7;
+ Text += len;
+ oldtext = Text;
+ break ;
+ case 4: // Escape (do nothing)
+ Text ++;
+ // NOTE: No update to oldtext
+ break;
+ default: // Error.
+ break;
+ }
+ }
+ curx += Renderer_RichText_RenderText_Act(Window, info, curx,
+ Line, oldtext, Text - oldtext + 1, fg, bg, flagset);
+ WM_Render_DrawRect(Window, curx, Line * info->LineHeight,
+ Window->W - curx, info->LineHeight, info->DefaultBG);
}
void Renderer_RichText_Redraw(tWindow *Window)
{
- return;
+ tRichText_Window *info = Window->RendererInfo;
+ int i;
+ tRichText_Line *line = info->FirstVisLine;
+
+ if( !line ) {
+ line = info->FirstLine;
+ while(line && line->Num < info->FirstVisRow )
+ line = line->Next;
+ info->FirstVisLine = line;
+ }
+ while( line && line->Prev && line->Prev->Num > info->FirstVisRow )
+ line = line->Prev;
+
+ for( i = 0; i < info->DispLines && line; i ++ )
+ {
+ if( i >= info->nLines - info->FirstVisRow )
+ break;
+ // TODO: Dirty rectangles?
+ WM_Render_FillRect(Window,
+ 0, i*info->LineHeight,
+ Window->W, info->LineHeight,
+ info->DefaultBG
+ );
+ if( line->Num > info->FirstVisRow + i )
+ continue ;
+ // TODO: Horizontal scrolling?
+ // TODO: Formatting
+
+ // Formatted text out
+ Renderer_RichText_RenderText(Window, i, line->Data);
+ _SysDebug("RichText: %p - Render %i '%.*s'", Window,
+ line->Num, line->ByteLength, line->Data);
+
+ line = line->Next;
+ }
+ // Clear out i -- info->DispLines
+ _SysDebug("RichText: %p - Clear %i px lines with %06x starting at %i",
+ Window, (info->DispLines-i)*info->LineHeight, info->DefaultBG, i*info->LineHeight);
+ WM_Render_FillRect(Window,
+ 0, i*info->LineHeight,
+ Window->W, (info->DispLines-i)*info->LineHeight,
+ info->DefaultBG
+ );
+
+ // HACK!
+ info->DispCols = Window->W / 8;
+
+ // TODO: Text cursor
+ _SysDebug("Cursor at %i,%i", info->CursorCol, info->CursorRow);
+ _SysDebug(" Range [%i+%i],[%i+%i]", info->FirstVisRow, info->DispLines, info->FirstVisCol, info->DispCols);
+ if( info->CursorRow >= info->FirstVisRow && info->CursorRow < info->FirstVisRow + info->DispLines )
+ {
+ if( info->CursorCol >= info->FirstVisCol && info->CursorCol < info->FirstVisCol + info->DispCols )
+ {
+ // TODO: Kill hardcoded 8 with cached text distance
+ WM_Render_FillRect(Window,
+ (info->CursorCol - info->FirstVisCol) * 8,
+ (info->CursorRow - info->FirstVisRow) * info->LineHeight,
+ 1,
+ info->LineHeight,
+ info->DefaultFG
+ );
+ }
+ }
+}
+
+int Renderer_RichText_HandleIPC_SetAttr(tWindow *Window, size_t Len, const void *Data)
+{
+ tRichText_Window *info = Window->RendererInfo;
+ const struct sRichTextIPC_SetAttr *msg = Data;
+ if(Len < sizeof(*msg)) return -1;
+
+ _SysDebug("RichText Attr %i set to %x", msg->Attr, msg->Value);
+ switch(msg->Attr)
+ {
+ case _ATTR_DEFBG:
+ info->DefaultBG = msg->Value;
+ break;
+ case _ATTR_DEFFG:
+ info->DefaultFG = msg->Value;
+ break;
+ case _ATTR_CURSORPOS:
+ info->CursorRow = msg->Value >> 12;
+ info->CursorCol = msg->Value & 0xFFF;
+ break;
+ case _ATTR_SCROLL:
+ // TODO: Set scroll flag
+ break;
+ case _ATTR_LINECOUNT:
+ info->nLines = msg->Value;
+ break;
+ }
+
+ return 0;
+}
+
+int Renderer_RichText_HandleIPC_WriteLine(tWindow *Window, size_t Len, const void *Data)
+{
+ tRichText_Window *info = Window->RendererInfo;
+ const struct sRichTextIPC_WriteLine *msg = Data;
+ if( Len < sizeof(*msg) ) return -1;
+ if( msg->Line >= info->nLines ) return 1; // Bad count
+
+ tRichText_Line *line = info->FirstLine;
+ tRichText_Line *prev = NULL;
+ while(line && line->Num < msg->Line)
+ prev = line, line = line->Next;
+ if( !line || line->Num > msg->Line )
+ {
+ // New line!
+ // Round up to 32
+ int space = ((Len - sizeof(*msg)) + 32-1) & ~(32-1);
+ tRichText_Line *new = malloc(sizeof(*line) + space);
+ // TODO: Bookkeeping on how much memory each window uses
+ new->Next = line;
+ new->Prev = prev;
+ new->Num = msg->Line;
+ new->Space = space;
+ if(new->Prev) new->Prev->Next = new;
+ else info->FirstLine = new;
+ if(new->Next) new->Next->Prev = new;
+ line = new;
+ }
+ else if( line->Space < Len - sizeof(*msg) )
+ {
+ // Need to allocate more space
+ int space = ((Len - sizeof(*msg)) + 32-1) & ~(32-1);
+ tRichText_Line *new = realloc(line, space);
+ // TODO: Bookkeeping on how much memory each window uses
+ new->Space = space;
+
+ if(new->Prev) new->Prev->Next = new;
+ else info->FirstLine = new;
+ if(new->Next) new->Next->Prev = new;
+ line = new;
+ }
+ else
+ {
+ // It fits :)
+ }
+ line->ByteLength = Len - sizeof(*msg);
+ memcpy(line->Data, msg->LineData, Len - sizeof(*msg));
+
+ WM_Invalidate( Window );
+
+ return 0;
}
int Renderer_RichText_HandleMessage(tWindow *Target, int Msg, int Len, const void *Data)
{
+ tRichText_Window *info = Target->RendererInfo;
switch(Msg)
{
- case MSG_RICHTEXT_SETATTR:
- break;
+ case WNDMSG_RESIZE: {
+ const struct sWndMsg_Resize *msg = Data;
+ if(Len < sizeof(*msg)) return -1;
+ info->DispLines = msg->H / info->LineHeight;
+ return 1; }
+ case WNDMSG_KEYDOWN:
+ case WNDMSG_KEYUP:
+ case WNDMSG_KEYFIRE:
+ return 1;
}
return 0;
}
git.ucc.asn.au / tpg / acess2.git / blobdiff
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