X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Ftext.c;h=69132fa04623b0092423a3a8d4de9d05b63677bf;hb=bdc7198372648cdde60eb28495569700b63592d5;hp=01689a73a5e85f9cef2a424f00157076185a0c18;hpb=c71f734c9f306daaca1a262d9f07ddae5bc71073;p=rocksndiamonds.git diff --git a/src/libgame/text.c b/src/libgame/text.c index 01689a73..69132fa0 100644 --- a/src/libgame/text.c +++ b/src/libgame/text.c @@ -28,7 +28,7 @@ static GC font_clip_gc = None; static void InitFontClipmasks() { XGCValues clip_gc_values; - unsigned long clip_gc_valuemask; + unsigned int clip_gc_valuemask; GC copy_clipmask_gc; int i, j; @@ -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(); @@ -156,12 +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) @@ -185,9 +187,79 @@ 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) +{ + char *text_ptr; + int word_len = 0, max_word_len = 0; + + for (text_ptr = text; *text_ptr; text_ptr++) + { + word_len = (*text_ptr != ' ' ? word_len + 1 : 0); + + max_word_len = MAX(word_len, max_word_len); + } + + return max_word_len; +} + + +/* ========================================================================= */ +/* simple text drawing functions */ +/* ========================================================================= */ + +void DrawInitTextExt(char *text, int ypos, int font_nr, boolean force) { +#if 1 +#if 0 + static unsigned int progress_delay = 0; + unsigned int progress_delay_value = 100; /* (in milliseconds) */ +#endif + + // LimitScreenUpdates(TRUE); // (ignore "force" for now) + // LimitScreenUpdates(!force); + LimitScreenUpdates(TRUE); + + UPDATE_BUSY_STATE(); + +#if 0 + if (!force && !DelayReached(&progress_delay, progress_delay_value)) + return; +#endif + if (window != NULL && + gfx.draw_init_text && + gfx.num_fonts > 0 && + gfx.font_bitmap_info[font_nr].bitmap != NULL) + { + 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); + + BlitBitmap(drawto, window, 0, 0, video.width, video.height, 0, 0); + } +#else + static unsigned int progress_delay = 0; + unsigned int progress_delay_value = 100; /* (in milliseconds) */ + + // LimitScreenUpdates(TRUE); // (ignore "force" for now) + LimitScreenUpdates(!force); + + 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) { @@ -202,6 +274,23 @@ void DrawInitText(char *text, int ypos, int font_nr) /* this makes things significantly faster than directly drawing to window */ BlitBitmap(drawto, window, 0, y, width, height, 0, y); } +#endif +} + +void DrawInitText(char *text, int ypos, int font_nr) +{ + // DrawInitTextExt(text, ypos, font_nr, TRUE); + DrawInitTextExt(text, ypos, font_nr, FALSE); +} + +void DrawInitTextAlways(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, ...) @@ -246,6 +335,11 @@ 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), @@ -309,7 +403,7 @@ void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *text, 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); @@ -394,8 +488,89 @@ 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 + +#if 1 + +char *GetTextBufferFromFile(char *filename, int max_lines) +{ + File *file; + char *buffer; + int num_lines = 0; + + if (filename == NULL) + return NULL; + + if (!(file = openFile(filename, MODE_READ))) + return NULL; + + buffer = checked_calloc(1); /* start with valid, but empty text buffer */ + + while (!checkEndOfFile(file) && num_lines < max_lines) + { + char line[MAX_LINE_LEN]; + + /* read next line of input file */ + if (!getStringFromFile(file, line, MAX_LINE_LEN)) + break; + + buffer = checked_realloc(buffer, strlen(buffer) + strlen(line) + 1); + + strcat(buffer, line); + + num_lines++; + } + + closeFile(file); + + return buffer; +} + +#else + +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; +} + +#endif + +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); @@ -422,9 +597,9 @@ 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 line_length) +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; @@ -501,29 +676,32 @@ 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 -int DrawTextFromFile(int x, int y, char *filename, int font_nr, - int line_length, int max_lines) +#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]; @@ -574,10 +752,37 @@ int DrawTextFromFile(int x, int y, char *filename, int font_nr, while (*line_ptr && current_line < max_lines) { - boolean buffer_filled = RenderLineToBuffer(&line_ptr, - buffer, &buffer_len, - last_line_was_empty, - line_length); +#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); @@ -601,3 +806,279 @@ int DrawTextFromFile(int x, int y, char *filename, int font_nr, 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 DrawTextBufferVA(int x, int y, char *format, va_list ap, 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[MAX_OUTPUT_LINESIZE]; + int text_length = vsnprintf(text_buffer, MAX_OUTPUT_LINESIZE, format, ap); + + if (text_length >= MAX_OUTPUT_LINESIZE) + Error(ERR_WARN, "string too long in DrawTextBufferVA() -- truncated"); + + 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); + return num_lines_printed; +} + +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