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draw letters centered

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This commit is contained in:
Eric House 2021-02-11 19:37:52 -08:00
parent 7dc949fb38
commit 9852142a2d
1 changed files with 25 additions and 7 deletions
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32
xwords4/wasm/wasmdraw.c
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@ -175,6 +175,21 @@ frameRect( WasmDrawCtx* wdctx, const XP_Rect* rect )
SDL_RenderDrawRect( wdctx->renderer, &sdlr );
}
static void
measureText( WasmDrawCtx* wdctx, const XP_UCHAR* text, int fontHeight,
int* widthP, int* heightP )
{
SDL_Color black = { 0, 0, 0, 255 };
TTF_Font* font = fontFor( wdctx, fontHeight );
SDL_Surface* surface = TTF_RenderText_Blended( font, text, black );
SDL_Texture* texture = SDL_CreateTextureFromSurface( wdctx->renderer,
surface );
SDL_QueryTexture( texture, NULL, NULL, widthP, heightP );
SDL_FreeSurface( surface );
SDL_DestroyTexture( texture );
}
static void
textInRect( WasmDrawCtx* wdctx, const XP_UCHAR* text, const XP_Rect* rect,
const SDL_Color* color )
@ -193,9 +208,8 @@ textInRect( WasmDrawCtx* wdctx, const XP_UCHAR* text, const XP_Rect* rect,
int width, height;
SDL_QueryTexture( texture, NULL, NULL, &width, &height );
/* XP_LOGFF( "have w: %d; h: %d; got w: %d; h: %d", */
/* tmpR.width, tmpR.height, width, height ); */
tmpR.width = XP_MIN( width, tmpR.width );
tmpR.left += (rect->width - tmpR.width) / 2;
tmpR.height = XP_MIN( height, tmpR.height );
SDL_Rect sdlr;
@ -256,7 +270,6 @@ wasm_draw_dictChanged( DrawCtx* dctx, XWEnv xwe, XP_S16 playerNum,
static XP_Bool
wasm_draw_beginDraw( DrawCtx* dctx, XWEnv xwe )
{
LOG_FUNC();
WasmDrawCtx* wdctx = (WasmDrawCtx*)dctx;
SDL_RenderPresent( wdctx->renderer );
return XP_TRUE;
@ -333,8 +346,7 @@ wasm_draw_scoreBegin( DrawCtx* dctx, XWEnv xwe, const XP_Rect* rect,
static XP_Bool
wasm_draw_measureRemText( DrawCtx* dctx, XWEnv xwe, const XP_Rect* rect,
XP_S16 nTilesLeft,
XP_U16* width, XP_U16* height )
XP_S16 nTilesLeft, XP_U16* widthP, XP_U16* heightP )
{
XP_Bool drawIt = 0 <= nTilesLeft;
if ( drawIt ) {
@ -342,8 +354,10 @@ wasm_draw_measureRemText( DrawCtx* dctx, XWEnv xwe, const XP_Rect* rect,
XP_SNPRINTF( buf, VSIZE(buf), "%d", nTilesLeft );
WasmDrawCtx* wdctx = (WasmDrawCtx*)dctx;
textInRect( wdctx, buf, rect, NULL );
*width = *height = rect->height;
int width, height;
measureText( wdctx, buf, rect->height, &width, &height );
*widthP = XP_MIN( width, rect->width );
*heightP = XP_MIN( height, rect->height );
}
return drawIt;
}
@ -353,6 +367,10 @@ wasm_draw_drawRemText( DrawCtx* dctx, XWEnv xwe, const XP_Rect* rInner,
const XP_Rect* rOuter,
XP_S16 nTilesLeft, XP_Bool focussed )
{
WasmDrawCtx* wdctx = (WasmDrawCtx*)dctx;
XP_UCHAR buf[4];
XP_SNPRINTF( buf, VSIZE(buf), "%d", nTilesLeft );
textInRect( wdctx, buf, rInner, NULL );
}
static void