X-Git-Url: https://git.artsoft.org/?p=rocksndiamonds.git;a=blobdiff_plain;f=src%2Flibgame%2Ftext.c;h=23de7cac548849a90e4c395a35391e9b0b1fb640;hp=132016de40c9d8d1e2fbd20d23640ba9d4853458;hb=359536f46007d1b9148bed9c529056faa91b8aab;hpb=74c0f7de91268e40d15948f473eac51a9760b9c0 diff --git a/src/libgame/text.c b/src/libgame/text.c index 132016de..23de7cac 100644 --- a/src/libgame/text.c +++ b/src/libgame/text.c @@ -1,7 +1,7 @@ /*********************************************************** * Artsoft Retro-Game Library * *----------------------------------------------------------* -* (c) 1994-2002 Artsoft Entertainment * +* (c) 1994-2006 Artsoft Entertainment * * Holger Schemel * * Detmolder Strasse 189 * * 33604 Bielefeld * @@ -107,11 +107,13 @@ static void FreeFontClipmasks() #endif /* TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND */ void InitFontInfo(struct FontBitmapInfo *font_bitmap_info, int num_fonts, - int (*select_font_function)(int)) + int (*select_font_function)(int), + int (*get_font_from_token_function)(char *)) { gfx.num_fonts = num_fonts; gfx.font_bitmap_info = font_bitmap_info; gfx.select_font_function = select_font_function; + gfx.get_font_from_token_function = get_font_from_token_function; #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND) InitFontClipmasks(); @@ -130,6 +132,13 @@ void FreeFontInfo(struct FontBitmapInfo *font_bitmap_info) free(font_bitmap_info); } +struct FontBitmapInfo *getFontBitmapInfo(int font_nr) +{ + int font_bitmap_id = gfx.select_font_function(font_nr); + + return &gfx.font_bitmap_info[font_bitmap_id]; +} + int getFontWidth(int font_nr) { int font_bitmap_id = gfx.select_font_function(font_nr); @@ -149,12 +158,12 @@ int getTextWidth(char *text, int font_nr) return (text != NULL ? strlen(text) * getFontWidth(font_nr) : 0); } -static char getFontCharPosition(int font_nr, char c) +static int getFontCharPosition(int font_nr, char c) { int font_bitmap_id = gfx.select_font_function(font_nr); struct FontBitmapInfo *font = &gfx.font_bitmap_info[font_bitmap_id]; boolean default_font = (font->num_chars == DEFAULT_NUM_CHARS_PER_FONT); - int font_pos = c - 32; + int font_pos = (unsigned char)c - 32; /* map some special characters to their ascii values in default font */ if (default_font) @@ -178,19 +187,65 @@ void getFontCharSource(int font_nr, char c, Bitmap **bitmap, int *x, int *y) *y = font->src_y + (font_pos / font->num_chars_per_line) * font->height; } -void DrawInitText(char *text, int ypos, int font_nr) + +/* ========================================================================= */ +/* text string helper functions */ +/* ========================================================================= */ + +int maxWordLengthInString(char *text) { - if (window && + char *text_ptr; + int max_word_len = 0; + + for (text_ptr = text; *text_ptr; text_ptr++) + max_word_len = (*text_ptr != ' ' ? max_word_len + 1 : 0); + + return max_word_len; +} + + +/* ========================================================================= */ +/* simple text drawing functions */ +/* ========================================================================= */ + +void DrawInitTextExt(char *text, int ypos, int font_nr, boolean force) +{ + static unsigned long progress_delay = 0; + unsigned long progress_delay_value = 100; /* (in milliseconds) */ + + UPDATE_BUSY_STATE(); + + if (!force && !DelayReached(&progress_delay, progress_delay_value)) + return; + + if (window != NULL && + gfx.draw_init_text && gfx.num_fonts > 0 && gfx.font_bitmap_info[font_nr].bitmap != NULL) { - ClearRectangle(window, 0, ypos, video.width, getFontHeight(font_nr)); - DrawTextExt(window, (video.width - getTextWidth(text, font_nr)) / 2, ypos, - text, font_nr, BLIT_OPAQUE); - FlushDisplay(); + int x = (video.width - getTextWidth(text, font_nr)) / 2; + int y = ypos; + int width = video.width; + int height = getFontHeight(font_nr); + + ClearRectangle(drawto, 0, y, width, height); + DrawTextExt(drawto, x, y, text, font_nr, BLIT_OPAQUE); + + /* this makes things significantly faster than directly drawing to window */ + BlitBitmap(drawto, window, 0, y, width, height, 0, y); } } +void DrawInitText(char *text, int ypos, int font_nr) +{ + DrawInitTextExt(text, ypos, font_nr, TRUE); +} + +void DrawInitTextIfNeeded(char *text, int ypos, int font_nr) +{ + DrawInitTextExt(text, ypos, font_nr, FALSE); +} + void DrawTextF(int x, int y, int font_nr, char *format, ...) { char buffer[MAX_OUTPUT_LINESIZE + 1]; @@ -233,6 +288,23 @@ void DrawTextSCentered(int y, int font_nr, char *text) gfx.sy + y, text, font_nr); } +void DrawTextCentered(int y, int font_nr, char *text) +{ + DrawText((gfx.sxsize - getTextWidth(text, font_nr)) / 2, y, text, font_nr); +} + +void DrawTextSAligned(int x, int y, char *text, int font_nr, int align) +{ + DrawText(gfx.sx + ALIGNED_XPOS(x, getTextWidth(text, font_nr), align), + gfx.sx + y, text, font_nr); +} + +void DrawTextAligned(int x, int y, char *text, int font_nr, int align) +{ + DrawText(ALIGNED_XPOS(x, getTextWidth(text, font_nr), align), + y, text, font_nr); +} + void DrawText(int x, int y, char *text, int font_nr) { int mask_mode = BLIT_OPAQUE; @@ -251,10 +323,19 @@ void DrawText(int x, int y, char *text, int font_nr) void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *text, int font_nr, int mask_mode) { +#if 1 + struct FontBitmapInfo *font = getFontBitmapInfo(font_nr); +#else int font_bitmap_id = gfx.select_font_function(font_nr); struct FontBitmapInfo *font = &gfx.font_bitmap_info[font_bitmap_id]; +#endif int font_width = getFontWidth(font_nr); int font_height = getFontHeight(font_nr); +#if 0 + int border_1 = gfx.sx + gfx.sxsize; + int border_2 = gfx.dx + gfx.dxsize; + int dst_x_start = dst_x; +#endif Bitmap *src_bitmap; int src_x, src_y; char *text_ptr = text; @@ -262,19 +343,42 @@ void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *text, if (font->bitmap == NULL) return; + /* skip text to be printed outside the window (left/right will be clipped) */ + if (dst_y < 0 || dst_y + font_height > video.height) + return; + /* add offset for drawing font characters */ - dst_x += font->draw_x; - dst_y += font->draw_y; + dst_x += font->draw_xoffset; + dst_y += font->draw_yoffset; while (*text_ptr) { char c = *text_ptr++; if (c == '\n') - c = ' '; /* print space instaed of newline */ + c = ' '; /* print space instead of newline */ getFontCharSource(font_nr, c, &src_bitmap, &src_x, &src_y); + /* clip text at the left side of the window */ + if (dst_x < 0) + { + dst_x += font_width; + + continue; + } + + /* clip text at the right side of the window */ +#if 1 + if (dst_x + font_width > video.width) + break; +#else + /* (this does not work well when trying to print text to whole screen) */ + if ((dst_x_start < border_1 && dst_x + font_width > border_1) || + (dst_x_start < border_2 && dst_x + font_width > border_2)) + break; +#endif + if (mask_mode == BLIT_INVERSE) /* special mode for text gadgets */ { /* first step: draw solid colored rectangle (use "cursor" character) */ @@ -337,8 +441,49 @@ void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *text, } } -void DrawTextToTextArea(int x, int y, char *text, int font_nr, int line_length, - int area_xsize, int area_ysize, int mask_mode) + +/* ========================================================================= */ +/* text buffer drawing functions */ +/* ========================================================================= */ + +#define MAX_LINES_FROM_FILE 1024 + +char *GetTextBufferFromFile(char *filename, int max_lines) +{ + FILE *file; + char *buffer; + int num_lines = 0; + + if (filename == NULL) + return NULL; + + if (!(file = fopen(filename, MODE_READ))) + return NULL; + + buffer = checked_calloc(1); /* start with valid, but empty text buffer */ + + while (!feof(file) && num_lines < max_lines) + { + char line[MAX_LINE_LEN]; + + /* read next line of input file */ + if (!fgets(line, MAX_LINE_LEN, file)) + break; + + buffer = checked_realloc(buffer, strlen(buffer) + strlen(line) + 1); + + strcat(buffer, line); + + num_lines++; + } + + fclose(file); + + return buffer; +} + +void DrawTextToTextArea_OLD(int x, int y, char *text, int font_nr, int line_length, + int area_xsize, int area_ysize, int mask_mode) { int area_line = 0; int font_height = getFontHeight(font_nr); @@ -365,9 +510,9 @@ void DrawTextToTextArea(int x, int y, char *text, int font_nr, int line_length, redraw_mask |= REDRAW_FIELD; } -boolean RenderLineToBuffer(char **src_buffer_ptr, char *dst_buffer, - int *dst_buffer_len, boolean last_line_was_empty, - int max_chars_per_line) +static boolean RenderLineToBuffer(char **src_buffer_ptr, char *dst_buffer, + int *dst_buffer_len, int line_length, + boolean last_line_was_empty) { char *text_ptr = *src_buffer_ptr; char *buffer = dst_buffer; @@ -406,7 +551,7 @@ boolean RenderLineToBuffer(char **src_buffer_ptr, char *dst_buffer, if (buffer_len > 0 || !last_line_was_empty) buffer_filled = TRUE; } - else if (word_len < max_chars_per_line - buffer_len) + else if (word_len < line_length - buffer_len) { /* word fits into text buffer -- add word */ @@ -428,9 +573,9 @@ boolean RenderLineToBuffer(char **src_buffer_ptr, char *dst_buffer, { /* word does not fit at all into empty text buffer -- cut word */ - strncpy(buffer, text_ptr, max_chars_per_line); - buffer[max_chars_per_line] = '\0'; - text_ptr += max_chars_per_line; + strncpy(buffer, text_ptr, line_length); + buffer[line_length] = '\0'; + text_ptr += line_length; buffer_filled = TRUE; } @@ -444,23 +589,391 @@ boolean RenderLineToBuffer(char **src_buffer_ptr, char *dst_buffer, return buffer_filled; } -void DrawTextWrapped(int x, int y, char *text, int font_nr, int line_length, - int max_lines) +#if 0 +void DrawTextWrapped_OLD(int x, int y, char *text, int font_nr, int line_length, + int max_lines) { char *text_ptr = text; - char buffer[line_length + 1]; - int buffer_len; int current_line = 0; int font_height = getFontHeight(font_nr); while (*text_ptr && current_line < max_lines) { + char buffer[line_length + 1]; + int buffer_len = 0; + buffer[0] = '\0'; - buffer_len = 0; - RenderLineToBuffer(&text_ptr, buffer, &buffer_len, TRUE, line_length); + RenderLineToBuffer(&text_ptr, buffer, &buffer_len, line_length, TRUE); + + DrawText(x, y + current_line * font_height, buffer, font_nr); + current_line++; + } +} +#endif + +#if 0 +int DrawTextFromFile_OLD(int x, int y, char *filename, int font_nr, + int line_length, int max_lines, boolean wrap_text) +{ + int font_height = getFontHeight(font_nr); + char line[MAX_LINE_LEN]; + char buffer[line_length + 1]; + int buffer_len; + int current_line = 0; + FILE *file; + + if (current_line >= max_lines) + return 0; + + if (filename == NULL) + return 0; + + if (!(file = fopen(filename, MODE_READ))) + return 0; + + buffer[0] = '\0'; + buffer_len = 0; + + while (!feof(file) && current_line < max_lines) + { + char *line_ptr; + boolean last_line_was_empty = TRUE; + + /* read next line of input file */ + if (!fgets(line, MAX_LINE_LEN, file)) + break; + + /* skip comments (lines directly beginning with '#') */ + if (line[0] == '#') + continue; + + /* cut trailing newline from input line */ + for (line_ptr = line; *line_ptr; line_ptr++) + { + if (*line_ptr == '\n' || *line_ptr == '\r') + { + *line_ptr = '\0'; + break; + } + } + + if (strlen(line) == 0) /* special case: force empty line */ + strcpy(line, "\n"); + + line_ptr = line; + + while (*line_ptr && current_line < max_lines) + { +#if 1 + boolean buffer_filled; + + if (wrap_text) + { + buffer_filled = RenderLineToBuffer(&line_ptr, buffer, &buffer_len, + line_length, last_line_was_empty); + } + else + { + if (strlen(line_ptr) <= line_length) + { + buffer_len = strlen(line_ptr); + strcpy(buffer, line_ptr); + } + else + { + buffer_len = line_length; + strncpy(buffer, line_ptr, line_length); + } + + buffer[buffer_len] = '\0'; + line_ptr += buffer_len; + buffer_filled = TRUE; + } +#else + boolean buffer_filled = RenderLineToBuffer(&line_ptr, buffer, &buffer_len, + line_length, last_line_was_empty); +#endif + + if (buffer_filled) + { + DrawText(x, y + current_line * font_height, buffer, font_nr); + current_line++; + + last_line_was_empty = (buffer_len == 0); + + buffer[0] = '\0'; + buffer_len = 0; + } + } + } + + fclose(file); + + if (buffer_len > 0 && current_line < max_lines) + { DrawText(x, y + current_line * font_height, buffer, font_nr); current_line++; } + + return current_line; +} +#endif + +static boolean getCheckedTokenValueFromString(char *string, char **token, + char **value) +{ + char *ptr; + + if (!getTokenValueFromString(string, token, value)) + return FALSE; + + if (**token != '.') /* token should begin with dot */ + return FALSE; + + for (ptr = *token; *ptr; ptr++) /* token should contain no whitespace */ + if (*ptr == ' ' || *ptr == '\t') + return FALSE; + + for (ptr = *value; *ptr; ptr++) /* value should contain no whitespace */ + if (*ptr == ' ' || *ptr == '\t') + return FALSE; + + return TRUE; +} + +static void DrawTextBuffer_Flush(int x, int y, char *buffer, int font_nr, + int line_length, int cut_length, + int line_spacing, int mask_mode, + boolean centered, int current_line) +{ + int buffer_len = strlen(buffer); + int font_width = getFontWidth(font_nr); + int font_height = getFontHeight(font_nr); + int offset_chars = (centered ? (line_length - buffer_len) / 2 : 0); + int offset_xsize = + (centered ? font_width * (line_length - buffer_len) / 2 : 0); + int final_cut_length = MAX(0, cut_length - offset_chars); + int xx = x + offset_xsize; + int yy = y + current_line * (font_height + line_spacing); + + buffer[final_cut_length] = '\0'; + + if (mask_mode != -1) + DrawTextExt(drawto, xx, yy, buffer, font_nr, mask_mode); + else + DrawText(xx, yy, buffer, font_nr); +} + +int DrawTextBuffer(int x, int y, char *text_buffer, int font_nr, + int line_length, int cut_length, int max_lines, + int line_spacing, int mask_mode, boolean autowrap, + boolean centered, boolean parse_comments) +{ +#if 0 + int font_width = getFontWidth(font_nr); + int font_height = getFontHeight(font_nr); +#endif + char buffer[line_length + 1]; + int buffer_len; + int current_line = 0; + + if (text_buffer == NULL || *text_buffer == '\0') + return 0; + + if (current_line >= max_lines) + return 0; + + if (cut_length == -1) + cut_length = line_length; + + buffer[0] = '\0'; + buffer_len = 0; + + while (*text_buffer && current_line < max_lines) + { + char line[MAX_LINE_LEN + 1]; + char *line_ptr; + boolean last_line_was_empty = TRUE; +#if 1 + int num_line_chars = MAX_LINE_LEN; +#else + int num_line_chars = (autowrap ? MAX_LINE_LEN : line_length); +#endif + int i; + + /* copy next line from text buffer to line buffer (nearly fgets() style) */ + for (i = 0; i < num_line_chars && *text_buffer; i++) + if ((line[i] = *text_buffer++) == '\n') + break; + line[i] = '\0'; + + /* prevent 'num_line_chars' sized lines to cause additional empty line */ + if (i == num_line_chars && *text_buffer == '\n') + text_buffer++; + + /* skip comments (lines directly beginning with '#') */ + if (line[0] == '#' && parse_comments) + { + char *token, *value; + + /* try to read generic token/value pair definition after comment sign */ + if (getCheckedTokenValueFromString(line + 1, &token, &value)) + { + /* if found, flush the current buffer, if non-empty */ + if (buffer_len > 0 && current_line < max_lines) + { + DrawTextBuffer_Flush(x, y, buffer, font_nr, line_length, cut_length, + line_spacing, mask_mode, centered, current_line); + + current_line++; + + buffer[0] = '\0'; + buffer_len = 0; + } + + if (strEqual(token, ".font")) + font_nr = gfx.get_font_from_token_function(value); + else if (strEqual(token, ".autowrap")) + autowrap = get_boolean_from_string(value); + else if (strEqual(token, ".centered")) + centered = get_boolean_from_string(value); + else if (strEqual(token, ".parse_comments")) + parse_comments = get_boolean_from_string(value); + } + + continue; + } + + /* cut trailing newline and carriage return from input line */ + for (line_ptr = line; *line_ptr; line_ptr++) + { + if (*line_ptr == '\n' || *line_ptr == '\r') + { + *line_ptr = '\0'; + break; + } + } + + if (strlen(line) == 0) /* special case: force empty line */ + strcpy(line, "\n"); + + line_ptr = line; + + while (*line_ptr && current_line < max_lines) + { + boolean buffer_filled; + + if (autowrap) + { + buffer_filled = RenderLineToBuffer(&line_ptr, buffer, &buffer_len, + line_length, last_line_was_empty); + } + else + { + if (strlen(line_ptr) <= line_length) + { + buffer_len = strlen(line_ptr); + strcpy(buffer, line_ptr); + } + else + { + buffer_len = line_length; + strncpy(buffer, line_ptr, line_length); + } + + buffer[buffer_len] = '\0'; + line_ptr += buffer_len; + + buffer_filled = TRUE; + } + + if (buffer_filled) + { +#if 1 + DrawTextBuffer_Flush(x, y, buffer, font_nr, line_length, cut_length, + line_spacing, mask_mode, centered, current_line); +#else + int offset_chars = (centered ? (line_length - buffer_len) / 2 : 0); + int offset_xsize = + (centered ? font_width * (line_length - buffer_len) / 2 : 0); + int final_cut_length = MAX(0, cut_length - offset_chars); + int xx = x + offset_xsize; + + buffer[final_cut_length] = '\0'; + + if (mask_mode != -1) + DrawTextExt(drawto, xx, y + current_line * font_height, buffer, + font_nr, mask_mode); + else + DrawText(xx, y + current_line * font_height, buffer, font_nr); +#endif + + current_line++; + + last_line_was_empty = (buffer_len == 0); + + buffer[0] = '\0'; + buffer_len = 0; + } + } + } + + if (buffer_len > 0 && current_line < max_lines) + { +#if 1 + DrawTextBuffer_Flush(x, y, buffer, font_nr, line_length, cut_length, + line_spacing, mask_mode, centered, current_line); +#else + int offset_chars = (centered ? (line_length - buffer_len) / 2 : 0); + int offset_xsize = + (centered ? font_width * (line_length - buffer_len) / 2 : 0); + int final_cut_length = MAX(0, cut_length - offset_chars); + int xx = x + offset_xsize; + + buffer[final_cut_length] = '\0'; + + if (mask_mode != -1) + DrawTextExt(drawto, xx, y + current_line * font_height, buffer, + font_nr, mask_mode); + else + DrawText(xx, y + current_line * font_height, buffer, font_nr); +#endif + + current_line++; + } + + return current_line; +} + +int DrawTextFile(int x, int y, char *filename, int font_nr, + int line_length, int cut_length, int max_lines, + int line_spacing, int mask_mode, boolean autowrap, + boolean centered, boolean parse_comments) +{ + char *text_buffer = GetTextBufferFromFile(filename, MAX_LINES_FROM_FILE); + int num_lines_printed = DrawTextBuffer(x, y, text_buffer, font_nr, + line_length, cut_length, max_lines, + line_spacing, mask_mode, autowrap, + centered, parse_comments); + checked_free(text_buffer); + + return num_lines_printed; +} + +#if 0 +void DrawTextWrapped(int x, int y, char *text, int font_nr, int line_length, + int max_lines) +{ + DrawTextBuffer(x, y, text, font_nr, line_length, -1, max_lines, -1, TRUE, + FALSE, FALSE); } + +void DrawTextToTextArea(int x, int y, char *text, int font_nr, int line_length, + int cut_length, int max_lines, int mask_mode) +{ + DrawTextBuffer(x, y, text, font_nr, line_length, cut_length, max_lines, + mask_mode, FALSE, FALSE, FALSE); +} +#endif