X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Ftext.c;h=2c5b77bf71edb7ce120f4a998a5dbe3faf88fec3;hb=c2a639c0b2c1a9a2bd14de86932a47429ae918a4;hp=5558fc1c2b8efb471a4f994dfdc050fead8b6118;hpb=57becb68aac2b371506b50cbf8b9b66220003b31;p=rocksndiamonds.git diff --git a/src/libgame/text.c b/src/libgame/text.c index 5558fc1c..2c5b77bf 100644 --- a/src/libgame/text.c +++ b/src/libgame/text.c @@ -144,6 +144,11 @@ int getFontHeight(int font_nr) return gfx.font_bitmap_info[font_bitmap_id].height; } +int getTextWidth(char *text, int font_nr) +{ + return (text != NULL ? strlen(text) * getFontWidth(font_nr) : 0); +} + static char getFontCharPosition(int font_nr, char c) { int font_bitmap_id = gfx.select_font_function(font_nr); @@ -179,16 +184,14 @@ void DrawInitText(char *text, int ypos, int font_nr) gfx.num_fonts > 0 && gfx.font_bitmap_info[font_nr].bitmap != NULL) { - int text_width = strlen(text) * getFontWidth(font_nr); - ClearRectangle(window, 0, ypos, video.width, getFontHeight(font_nr)); - DrawTextExt(window, (video.width - text_width) / 2, ypos, text, font_nr, - BLIT_OPAQUE); + DrawTextExt(window, (video.width - getTextWidth(text, font_nr)) / 2, ypos, + text, font_nr, BLIT_OPAQUE); FlushDisplay(); } } -void DrawTextFCentered(int y, int font_nr, char *format, ...) +void DrawTextF(int x, int y, int font_nr, char *format, ...) { char buffer[MAX_OUTPUT_LINESIZE + 1]; va_list ap; @@ -198,13 +201,12 @@ void DrawTextFCentered(int y, int font_nr, char *format, ...) va_end(ap); if (strlen(buffer) > MAX_OUTPUT_LINESIZE) - Error(ERR_EXIT, "string too long in DrawTextFCentered() -- aborting"); + Error(ERR_EXIT, "string too long in DrawTextF() -- aborting"); - DrawText(gfx.sx + (gfx.sxsize - strlen(buffer) * getFontWidth(font_nr)) / 2, - gfx.sy + y, buffer, font_nr); + DrawText(gfx.sx + x, gfx.sy + y, buffer, font_nr); } -void DrawTextF(int x, int y, int font_nr, char *format, ...) +void DrawTextFCentered(int y, int font_nr, char *format, ...) { char buffer[MAX_OUTPUT_LINESIZE + 1]; va_list ap; @@ -214,9 +216,21 @@ void DrawTextF(int x, int y, int font_nr, char *format, ...) va_end(ap); if (strlen(buffer) > MAX_OUTPUT_LINESIZE) - Error(ERR_EXIT, "string too long in DrawTextF() -- aborting"); + Error(ERR_EXIT, "string too long in DrawTextFCentered() -- aborting"); - DrawText(gfx.sx + x, gfx.sy + y, buffer, font_nr); + DrawText(gfx.sx + (gfx.sxsize - getTextWidth(buffer, font_nr)) / 2, + gfx.sy + y, buffer, font_nr); +} + +void DrawTextS(int x, int y, int font_nr, char *text) +{ + DrawText(gfx.sx + x, gfx.sy + y, text, font_nr); +} + +void DrawTextSCentered(int y, int font_nr, char *text) +{ + DrawText(gfx.sx + (gfx.sxsize - getTextWidth(text, font_nr)) / 2, + gfx.sy + y, text, font_nr); } void DrawText(int x, int y, char *text, int font_nr) @@ -256,6 +270,9 @@ 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 */ + getFontCharSource(font_nr, c, &src_bitmap, &src_x, &src_y); if (mask_mode == BLIT_INVERSE) /* special mode for text gadgets */ @@ -319,3 +336,131 @@ void DrawTextExt(DrawBuffer *dst_bitmap, int dst_x, int dst_y, char *text, dst_x += font_width; } } + +void DrawTextToTextArea(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); + + if (text == NULL) + return; + + while (*text && area_line < area_ysize) + { + char buffer[MAX_OUTPUT_LINESIZE + 1]; + int i; + + for (i=0; i < line_length && *text; i++) + if ((buffer[i] = *text++) == '\n') + break; + buffer[MIN(i, area_xsize)] = '\0'; + + DrawTextExt(drawto, x, y + area_line * font_height, buffer, font_nr, + mask_mode); + + area_line++; + } + + 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) +{ + char *text_ptr = *src_buffer_ptr; + char *buffer = dst_buffer; + int buffer_len = *dst_buffer_len; + boolean buffer_filled = FALSE; + + while (*text_ptr) + { + char *word_ptr; + int word_len; + + /* skip leading whitespaces */ + while (*text_ptr == ' ' || *text_ptr == '\t') + text_ptr++; + + word_ptr = text_ptr; + word_len = 0; + + /* look for end of next word */ + while (*word_ptr != ' ' && *word_ptr != '\t' && *word_ptr != '\0') + { + word_ptr++; + word_len++; + } + + if (word_len == 0) + { + continue; + } + else if (*text_ptr == '\n') /* special case: force empty line */ + { + if (buffer_len == 0) + text_ptr++; + + /* prevent printing of multiple empty lines */ + if (buffer_len > 0 || !last_line_was_empty) + buffer_filled = TRUE; + } + else if (word_len < max_chars_per_line - buffer_len) + { + /* word fits into text buffer -- add word */ + + if (buffer_len > 0) + buffer[buffer_len++] = ' '; + + strncpy(&buffer[buffer_len], text_ptr, word_len); + buffer_len += word_len; + buffer[buffer_len] = '\0'; + text_ptr += word_len; + } + else if (buffer_len > 0) + { + /* not enough space left for word in text buffer -- print buffer */ + + buffer_filled = TRUE; + } + else + { + /* 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; + buffer_filled = TRUE; + } + + if (buffer_filled) + break; + } + + *src_buffer_ptr = text_ptr; + *dst_buffer_len = buffer_len; + + return buffer_filled; +} + +void DrawTextWrapped(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) + { + buffer[0] = '\0'; + buffer_len = 0; + + RenderLineToBuffer(&text_ptr, buffer, &buffer_len, TRUE, line_length); + + DrawText(x, y + current_line * font_height, buffer, font_nr); + current_line++; + } +}