X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=lib%2Fruby%2Fgfx.c;h=9384d1904be9731026911339652c1fc64a8a62ad;hp=ae4b6d8f087e9bf9b1a5e046f918fa205bc8f532;hb=2ddfa640af28b592ecf4295f0b1b7b43c923f707;hpb=69715349931b6feffe90ec4ef905656bc02beaab

diff --git a/lib/ruby/gfx.c b/lib/ruby/gfx.c
index ae4b6d8..9384d19 100644
--- a/lib/ruby/gfx.c
+++ b/lib/ruby/gfx.c
@@ -2,6 +2,7 @@
 #include "../gfxdevice.h"
 #include "../gfxsource.h"
 #include "../gfxtools.h"
+#include "../gfximage.h"
 #include "../devices/pdf.h"
 #include "../readers/swf.h"
 #include "../readers/image.h"
@@ -62,6 +63,9 @@ static VALUE doc_initialize(VALUE cls, VALUE _filename)
     const char*filename = StringValuePtr(_filename);
     doc->fontlist = gfxfontlist_create();
     doc->doc = pdfdriver->open(pdfdriver, filename);
+    if(!doc->doc) {
+	rb_raise(rb_eIOError, "couldn't open %s", filename);
+    }
     return cls;
 }
 
@@ -200,18 +204,34 @@ static VALUE image_height(VALUE cls)
     Get_Image(image,cls)
     return INT2FIX(image->image->height);
 }
+static VALUE image_rescale(VALUE cls, VALUE _width, VALUE _height)
+{
+    Get_Image(image,cls)
+    Check_Type(_width, T_FIXNUM);
+    Check_Type(_height, T_FIXNUM);
+    int width = FIX2INT(_width);
+    int height = FIX2INT(_height);
+    volatile VALUE v_image2 = image_allocate(Bitmap);
+    Get_Image(image2,v_image2)
+    image2->doc = image->doc;
+    image2->image = gfximage_rescale(image->image, width, height);
+    return v_image2;
+}
 static VALUE image_save_jpeg(VALUE cls, VALUE _filename, VALUE quality)
 {
     Get_Image(image,cls)
     Check_Type(_filename, T_STRING);
     Check_Type(quality, T_FIXNUM);
     const char*filename = StringValuePtr(_filename);
-    int l = strlen(filename);
-    char jpeg = 0;
-    if(l>=4 && !strcmp(&filename[l-4], ".jpg")) jpeg = 1;
-    if(l>=5 && !strcmp(&filename[l-5], ".jpeg")) jpeg = 1;
-    if(l>=4 && !strcmp(&filename[l-4], ".JPG")) jpeg = 1;
-    jpeg_save(image->image->data, image->image->width, image->image->height, FIX2INT(quality), filename);
+    gfximage_save_jpeg(image->image, filename, FIX2INT(quality));
+    return cls;
+}
+static VALUE image_save_png(VALUE cls, VALUE _filename)
+{
+    Get_Image(image,cls)
+    Check_Type(_filename, T_STRING);
+    const char*filename = StringValuePtr(_filename);
+    gfximage_save_png(image->image, filename);
     return cls;
 }
 VALUE convert_image(doc_internal_t*doc,gfximage_t*_image)
@@ -264,6 +284,16 @@ static VALUE glyph_advance(VALUE cls)
     return rb_float_new(glyph->font->font->glyphs[glyph->nr].advance);
 }
 
+static VALUE glyph_bbox(VALUE cls)
+{
+    Get_Glyph(glyph,cls);
+    gfxbbox_t bbox = gfxline_getbbox(glyph->font->font->glyphs[glyph->nr].line);
+    return rb_ary_new3(4, rb_float_new(bbox.xmin), 
+	                  rb_float_new(bbox.ymin), 
+			  rb_float_new(bbox.xmax), 
+			  rb_float_new(bbox.ymax));
+}
+
 static VALUE glyph_unicode(VALUE cls)
 {
     Get_Glyph(glyph,cls);
@@ -293,6 +323,18 @@ static VALUE font_allocate(VALUE cls)
     return v;
 }
 
+static VALUE font_ascent(VALUE cls)
+{
+    Get_Font(font,cls);
+    return rb_float_new(font->font->ascent);
+}
+
+static VALUE font_descent(VALUE cls)
+{
+    Get_Font(font,cls);
+    return rb_float_new(font->font->descent);
+}
+
 static VALUE font_name(VALUE cls)
 {
     Get_Font(font,cls);
@@ -305,6 +347,23 @@ static VALUE font_glyphs(VALUE cls)
     return font->glyph_array;
 }
 
+static VALUE font_kerning(VALUE cls)
+{
+    Get_Font(font,cls);
+    gfxkerning_t*kerning = font->font->kerning;
+    int kerning_size = font->font->kerning_size;
+    volatile VALUE a = rb_ary_new2(kerning_size);
+    int t;
+    for(t=0;t<kerning_size;t++) {
+	volatile VALUE tuple = rb_ary_new2(3);
+	rb_ary_store(tuple, 0, INT2FIX(kerning[t].c1));
+	rb_ary_store(tuple, 1, INT2FIX(kerning[t].c2));
+	rb_ary_store(tuple, 2, INT2FIX(kerning[t].advance));
+	rb_ary_store(a, t, tuple);
+    }
+    return a;
+}
+
 // ------------------------ gfx device --------------------------------------
 
 typedef struct device_internal {
@@ -501,7 +560,7 @@ void rb_addfont(gfxdevice_t*dev, gfxfont_t*font)
     HEAD
 
     volatile VALUE f = font_is_cached(i, font);
-    if(!f) {f=convert_font(font);cache_font(i,font,v);}
+    if(!f) {f=convert_font(font);cache_font(i,font,f);}
 
     forward(v, id_addfont, 1, f);
 }
@@ -509,7 +568,7 @@ void rb_drawchar(gfxdevice_t*dev, gfxfont_t*font, int glyphnr, gfxcolor_t*color,
 {
     HEAD
     volatile VALUE f = font_is_cached(i, font);
-    if(!f) {f=convert_font(font);cache_font(i,font,v);}
+    if(!f) {f=convert_font(font);cache_font(i,font,f);}
 
     volatile VALUE v_color = convert_color(color);
     volatile VALUE v_matrix = convert_matrix(matrix);
@@ -561,11 +620,26 @@ static VALUE page_render(VALUE cls, VALUE device)
     dev.endpage = rb_endpage;
     dev.finish = rb_finish;
 
+    dev.startpage(&dev, page->page->width, page->page->height);
     page->page->render(page->page, &dev);
+    dev.endpage(&dev);
 
     return cls;
 }
 
+// ---------------------- global functions ----------------------------------
+
+VALUE gfx_setparameter(VALUE module, VALUE _key, VALUE _value)
+{
+    Check_Type(_key, T_STRING);
+    Check_Type(_value, T_STRING);
+    const char*key = StringValuePtr(_key);
+    const char*value = StringValuePtr(_value);
+    pdfdriver->setparameter(pdfdriver, key, value);
+    swfdriver->setparameter(swfdriver, key, value);
+    imagedriver->setparameter(imagedriver, key, value);
+    return GFX;
+}
 
 // --------------------------------------------------------------------------
 
@@ -578,6 +652,8 @@ void Init_gfx()
 
     GFX = rb_define_module("GFX");
     
+    rb_define_module_function(GFX, "setparameter", gfx_setparameter, 2);
+    
     DocumentPage = rb_define_class_under(GFX, "DocumentPage", rb_cObject);
     rb_define_method(DocumentPage, "width", page_width, 0);
     rb_define_method(DocumentPage, "height", page_height, 0);
@@ -591,15 +667,24 @@ void Init_gfx()
     
     Bitmap = rb_define_class_under(GFX, "Bitmap", rb_cObject);
     rb_define_method(Bitmap, "save_jpeg", image_save_jpeg, 2);
+    rb_define_method(Bitmap, "save_png", image_save_png, 1);
+    rb_define_method(Bitmap, "width", image_width, 0);
+    rb_define_method(Bitmap, "height", image_height, 0);
+    rb_define_method(Bitmap, "rescale", image_rescale, 2);
     
     Glyph = rb_define_class_under(GFX, "Glyph", rb_cObject);
     rb_define_method(Glyph, "polygon", glyph_polygon, 0);
     rb_define_method(Glyph, "unicode", glyph_unicode, 0);
     rb_define_method(Glyph, "advance", glyph_advance, 0);
+    rb_define_method(Glyph, "bbox", glyph_bbox, 0);
     
     Font = rb_define_class_under(GFX, "Font", rb_cObject);
     rb_define_method(Font, "name", font_name, 0);
+    rb_define_method(Font, "ascent", font_ascent, 0);
+    rb_define_method(Font, "descent", font_descent, 0);
     rb_define_method(Font, "glyphs", font_glyphs, 0);
+    rb_define_method(Font, "kerning", font_kerning, 0);
+    rb_define_method(Font, "get_kerning_table", font_kerning, 0);
     
     Device = rb_define_class_under(GFX, "Device", rb_cObject);
     rb_define_method(Device, "startpage", noop, -1);