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#include "stdafx.h"
#include "Icon.h"
#include "Utils/Bitwise.h"
#include "Core/SystemError.h"
namespace gui {
#ifdef GUI_WIN32
// Create the color bitmap.
static HBITMAP createColorBitmap(Image *image) {
Nat scanline = image->width() * 4;
vector<byte> data(scanline * image->height(), 0);
// Copy pixels, we need to shift R and B as well.
for (Nat y = 0; y < image->height(); y++) {
Nat start = y * scanline;
for (Nat x = 0; x < image->width(); x++) {
byte *src = image->buffer(x, y);
data[start + x*4 + 0] = src[2];
data[start + x*4 + 1] = src[1];
data[start + x*4 + 2] = src[0];
data[start + x*4 + 3] = src[3];
}
}
return CreateBitmap(image->width(), image->height(), 1, 32, &data[0]);
}
// Create the mask bitmap.
static HBITMAP createMaskBitmap(Image *image) {
Nat scanline = roundUp((image->width() + 7) / 8, Nat(2));
vector<byte> data(scanline * image->height(), 0);
for (Nat y = 0; y < image->height(); y++) {
Nat start = scanline * y;
for (Nat x = 0; x < image->width(); x++) {
byte *b = image->buffer(x, y);
if (b[4] == 0) {
Nat idx = start + x / 8;
data[idx] |= 1 << (7 - (x % 8));
}
}
}
return CreateBitmap(image->width(), image->height(), 1, 1, &data[0]);
}
// Create a HICON of the desired size.
static Handle createIcon(ImageSet *from, Nat width, Nat height) {
Image *image = from->atLeast(width, height);
// Note: DrawIcon seems to handle shrinking icons as needed.
HBITMAP maskBitmap = createMaskBitmap(image);
HBITMAP colorBitmap = createColorBitmap(image);
// PVAR(systemErrorMessage(from->engine(), GetLastError()));
// PVAR(colorBitmap);
ICONINFO info;
info.fIcon = TRUE;
info.xHotspot = 0;
info.yHotspot = 0;
info.hbmMask = maskBitmap;
info.hbmColor = colorBitmap;
HICON created = CreateIconIndirect(&info);
DeleteObject(colorBitmap);
DeleteObject(maskBitmap);
// HDC desktop = GetDC(NULL);
// DrawIcon(desktop, 1000, 500, created);
// ReleaseDC(NULL, desktop);
return created;
}
Icon::Icon(ImageSet *from) {
smallIcon = createIcon(from, GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON));
largeIcon = createIcon(from, GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON));
}
Icon::~Icon() {
DestroyIcon(largeIcon.icon());
DestroyIcon(smallIcon.icon());
}
#endif
#ifdef GUI_GTK
static GdkPixbuf *createPixbuf(Image *image) {
GdkPixbuf *buf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, image->width(), image->height());
if (!buf)
return null;
guchar *dst = gdk_pixbuf_get_pixels(buf);
int stride = gdk_pixbuf_get_rowstride(buf);
for (Nat y = 0; y < image->height(); y++) {
byte *src = image->buffer(0, y);
memcpy(dst + int(y)*stride, src, image->width() * 4);
}
return buf;
}
Icon::Icon(ImageSet *from) {
gtkImages = runtime::allocArray<GdkPixbuf *>(engine(), &pointerArrayType, from->count());
for (Nat i = 0; i < from->count(); i++) {
if (GdkPixbuf *buffer = createPixbuf(from->at(i)))
gtkImages->v[gtkImages->filled++] = buffer;
}
}
Icon::~Icon() {
for (size_t i = 0; i < gtkImages->filled; i++) {
if (gtkImages->v[i])
g_object_unref(gtkImages->v[i]);
}
}
GList *Icon::gtkList() const {
GList *current = NULL;
for (Nat i = gtkImages->filled; i > 0; i--) {
GdkPixbuf *item = gtkImages->v[i - 1];
current = g_list_prepend(current, item);
}
return current;
}
#endif
}
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