163 lines
3.6 KiB
C
163 lines
3.6 KiB
C
#ifdef USE_GDI_TEXT
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#include <Mw/Milsko.h>
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struct _MwFLFont {
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HANDLE handle;
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HFONT font;
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HDC dc;
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};
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static int GDI_MwDrawText(MwWidget handle, MwFLFont ttf, MwPoint* point, const char* text, MwLLColor color) {
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BITMAPINFOHEADER bmih;
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int tw;
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int th;
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HBITMAP hbm;
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RGBQUAD* bits = NULL;
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HDC hmdc;
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char* t = MwUTF8ToACP(text);
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unsigned char* px;
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int y, x;
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MwRect r;
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MwLLPixmap p;
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tw = MwTextWidth(handle, ttf, text);
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th = MwTextHeight(handle, ttf, text);
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if(handle->lowlevel->common.type == MwLLBackendGDI) {
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HFONT old_font = SelectObject(handle->lowlevel->gdi.hDC, ttf->font);
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int old_bkmode = SetBkMode(handle->lowlevel->gdi.hDC, TRANSPARENT);
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COLORREF old_color = SetTextColor(handle->lowlevel->gdi.hDC, color->gdi.color);
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TextOut(handle->lowlevel->gdi.hDC, point->x, point->y - th / 2, t, strlen(t));
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SetTextColor(handle->lowlevel->gdi.hDC, old_color);
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SetBkMode(handle->lowlevel->gdi.hDC, old_bkmode);
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SelectObject(handle->lowlevel->gdi.hDC, old_font);
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free(t);
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return 0;
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}
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px = malloc(tw * th * 4);
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bmih.biSize = sizeof(bmih);
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bmih.biWidth = tw;
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bmih.biHeight = -(LONG)th;
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bmih.biPlanes = 1;
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bmih.biBitCount = 32;
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bmih.biCompression = BI_RGB;
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bmih.biSizeImage = 0;
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bmih.biXPelsPerMeter = 0;
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bmih.biYPelsPerMeter = 0;
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bmih.biClrUsed = 0;
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bmih.biClrImportant = 0;
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hbm = CreateDIBSection(ttf->dc, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, (void**)&bits, NULL, 0);
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hmdc = CreateCompatibleDC(ttf->dc);
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SelectObject(hmdc, hbm);
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SelectObject(hmdc, ttf->font);
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TextOut(hmdc, 0, 0, t, strlen(t));
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DeleteDC(hmdc);
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for(y = 0; y < th; y++) {
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for(x = 0; x < tw; x++) {
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unsigned char* opx = &px[(y * tw + x) * 4];
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opx[0] = color->common.red;
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opx[1] = color->common.green;
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opx[2] = color->common.blue;
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opx[3] = 255 - bits[y * tw + x].rgbRed;
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}
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}
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p = MwLoadRaw(handle, px, tw, th);
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r.x = point->x;
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r.y = point->y - th / 2;
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r.width = tw;
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r.height = th;
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MwLLDrawPixmap(handle->lowlevel, &r, p);
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MwLLDestroyPixmap(p);
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free(px);
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DeleteObject(hbm);
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free(t);
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return 0;
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}
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static int GDI_MwTextWidth(MwFLFont ttf, const char* text) {
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char* t = MwUTF8ToACP(text);
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SIZE sz;
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GetTextExtentPoint32(ttf->dc, t, strlen(t), &sz);
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free(t);
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return sz.cx;
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}
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static int GDI_MwTextHeight(MwFLFont ttf, int count) {
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TEXTMETRIC tm;
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GetTextMetrics(ttf->dc, &tm);
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return tm.tmHeight * count;
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}
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static void* GDI_MwFontLoad(unsigned char* data, unsigned int size, int px) {
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MwFLFont ttf = malloc(sizeof(*ttf));
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DWORD c;
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MwTTFInfo info;
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if((info = MwTTFGetInfo(data, size)) == NULL) {
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free(ttf);
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return NULL;
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}
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ttf->dc = GetDC(NULL);
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if((ttf->handle = AddFontMemResourceEx(data, size, 0, &c)) == NULL) {
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ReleaseDC(NULL, ttf->dc);
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MwTTFFreeInfo(info);
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free(ttf);
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return NULL;
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}
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if((ttf->font = CreateFont(-px, 0, 0, 0, info->weight, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, info->family)) == NULL) {
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RemoveFontMemResourceEx(ttf->handle);
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ReleaseDC(NULL, ttf->dc);
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MwTTFFreeInfo(info);
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free(ttf);
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return NULL;
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}
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MwTTFFreeInfo(info);
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SelectObject(ttf->dc, ttf->font);
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return ttf;
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}
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static void GDI_MwFontFree(void* handle) {
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MwFLFont ttf = handle;
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DeleteObject(ttf->font);
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RemoveFontMemResourceEx(ttf->handle);
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ReleaseDC(NULL, ttf->dc);
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free(ttf);
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}
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int MwFL_GDISetup(void) {
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MwFLDrawText = GDI_MwDrawText;
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MwFLTextWidth = GDI_MwTextWidth;
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MwFLTextHeight = GDI_MwTextHeight;
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MwFLFontLoad = GDI_MwFontLoad;
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MwFLFontFree = GDI_MwFontFree;
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return 0;
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}
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#endif
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