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Add sdl_gpu demo, add more glyph positions and text rendering

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This commit is contained in:
Joey Yakimowich-Payne 2020-04-25 15:26:03 -06:00
commit ee2f3065b8
12 changed files with 312 additions and 78 deletions
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16
examples/common.nim
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@ -24,7 +24,7 @@ proc drawLabel*(text: string, x, y, w, h: float) =
nanovg.setFillColor(1.0, 1.0, 1.0, 1.0)
nanovg.textAlign("left middle")
nanovg.text(x, y+h*0.5, text)
nanovg.text(text, x, y+h*0.5)
proc drawWindow*(title: string, x, y, w, h: float) =
let cornerRadius = 3.0
@ -41,11 +41,11 @@ proc drawWindow*(title: string, x, y, w, h: float) =
nanovg.setFontBlur(2)
nanovg.setFillColor(RGBA(0,0,0,128))
nanovg.text(x+w/2, y+16+1, title)
nanovg.text(title, x+w/2, y+16+1)
nanovg.setFontBlur(0)
nanovg.setFillColor(RGBA(220,220,220,160))
nanovg.text(x+w/2,y+16, title)
nanovg.text(title, x+w/2,y+16)
proc isBlack*(color: Color): bool =
result = true
@ -163,12 +163,12 @@ proc drawButton*(preicon: string, text: string, x, y, w, h: float, color: Color)
nanovg.setFontSize(20.0)
nanovg.setFont("sans-bold")
tb = nanovg.textBounds(0.0, 0.0, text)
tb = nanovg.textBounds(text, 0.0, 0.0)
tw = tb.horizontalAdvance
nanovg.setFontSize(h*0.5)
nanovg.setFont("fa")
ib = nanovg.textBounds(0,0, preicon)
ib = nanovg.textBounds(preicon, 0, 0)
iw = ib.horizontalAdvance
iw += h*0.15
@ -176,14 +176,14 @@ proc drawButton*(preicon: string, text: string, x, y, w, h: float, color: Color)
nanovg.setFont("fa")
nanovg.setFillColor(RGBA(255,255,255,96))
nanovg.textAlign("left middle")
nanovg.text(x+w*0.5-tw*0.5-iw*0.75, y+h*0.5, preicon)
nanovg.text(preicon, x+w*0.5-tw*0.5-iw*0.75, y+h*0.5)
nanovg.setFontSize(20.0)
nanovg.setFont("sans-bold")
nanovg.textAlign("left middle")
nanovg.setFillColor(RGBA(0,0,0,160))
nanovg.text(x+w*0.5-tw*0.5+iw*0.25, y+h*0.5-1, text)
nanovg.text(text, x+w*0.5-tw*0.5+iw*0.25, y+h*0.5-1)
nanovg.setFillColor(RGBA(255,255,255,160))
nanovg.text(x+w*0.5-tw*0.5+iw*0.25, y+h*0.5, text)
nanovg.text(text, x+w*0.5-tw*0.5+iw*0.25, y+h*0.5)
proc glewInit*() {.header:"<GL/glew.h>".}