116 lines
3.1 KiB
C
116 lines
3.1 KiB
C
/* vim: tabstop=4 shiftwidth=4 noexpandtab
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*
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* Client-side Window Decoration library
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*/
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#include <stdint.h>
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#include "graphics.h"
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#include "window.h"
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#include "decorations.h"
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uint32_t decor_top_height = 24;
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uint32_t decor_bottom_height = 1;
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uint32_t decor_left_width = 1;
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uint32_t decor_right_width = 1;
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#define TEXT_OFFSET_X 10
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#define TEXT_OFFSET_Y 16
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#define BORDERCOLOR rgb(60,60,60)
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#define BACKCOLOR rgb(20,20,20)
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#define TEXTCOLOR rgb(255,255,255)
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#define SGFX(CTX,x,y,WIDTH) *((uint32_t *)&CTX[((WIDTH) * (y) + (x)) * 4])
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#define FONT_SIZE 12
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#include FT_CACHE_H
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static FT_Library library;
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static FT_Face face;
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static FT_GlyphSlot slot;
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static FT_UInt glyph_index;
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static void _loadDejavu() {
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char * font;
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size_t s = 0;
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int error;
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font = (char *)syscall_shm_obtain(WINS_SERVER_IDENTIFIER ".fonts.sans-serif.bold", &s);
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error = FT_New_Memory_Face(library, font, s, 0, &face);
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error = FT_Set_Pixel_Sizes(face, FONT_SIZE, FONT_SIZE);
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}
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static void draw_char(FT_Bitmap * bitmap, int x, int y, uint32_t fg, window_t * window, char * ctx) {
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int i, j, p, q;
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int x_max = x + bitmap->width;
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int y_max = y + bitmap->rows;
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for (j = y, q = 0; j < y_max; j++, q++) {
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for ( i = x, p = 0; i < x_max; i++, p++) {
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SGFX(ctx,i,j,window->width) = alpha_blend(SGFX(ctx,i,j,window->width),fg,rgb(bitmap->buffer[q * bitmap->width + p],0,0));
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}
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}
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}
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static void draw_string(int x, int y, uint32_t fg, char * string, window_t * window, char * ctx) {
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slot = face->glyph;
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int pen_x = x, pen_y = y, i = 0;
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int len = strlen(string);
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int error;
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for (i = 0; i < len; ++i) {
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FT_UInt glyph_index;
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glyph_index = FT_Get_Char_Index( face, string[i]);
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error = FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT);
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if (error) {
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printf("Error loading glyph for '%c'\n", string[i]);
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continue;
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}
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slot = (face)->glyph;
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if (slot->format == FT_GLYPH_FORMAT_OUTLINE) {
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error = FT_Render_Glyph((face)->glyph, FT_RENDER_MODE_NORMAL);
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if (error) {
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printf("Error rendering glyph for '%c'\n", string[i]);
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continue;
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}
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}
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draw_char(&slot->bitmap, pen_x + slot->bitmap_left, pen_y - slot->bitmap_top, fg, window, ctx);
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pen_x += slot->advance.x >> 6;
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pen_y += slot->advance.y >> 6;
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}
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}
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void init_decorations() {
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FT_Init_FreeType(&library);
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_loadDejavu();
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}
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void render_decorations(window_t * window, uint8_t * ctx, char * title) {
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for (uint32_t i = 0; i < window->height; ++i) {
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SGFX(ctx,0,i,window->width) = BORDERCOLOR;
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SGFX(ctx,window->width-1,i,window->width) = BORDERCOLOR;
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}
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for (uint32_t i = 1; i < decor_top_height; ++i) {
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for (uint32_t j = 1; j < window->width - 1; ++j) {
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SGFX(ctx,j,i,window->width) = BACKCOLOR;
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}
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}
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draw_string(TEXT_OFFSET_X,TEXT_OFFSET_Y,TEXTCOLOR,title,window,ctx);
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for (uint32_t i = 0; i < window->width; ++i) {
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SGFX(ctx,i,0,window->width) = BORDERCOLOR;
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SGFX(ctx,i,decor_top_height,window->width) = BORDERCOLOR;
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SGFX(ctx,i,window->height-1,window->width) = BORDERCOLOR;
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}
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}
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uint32_t decor_width() {
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return decor_left_width + decor_right_width;
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}
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uint32_t decor_height() {
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return decor_top_height + decor_bottom_height;
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}
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