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- Removed "guessing char" method for determining per-font Y-offset

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- Instead added "setBaselineOffset" script function to set a common baseline for all fonts
- Now using text_path instead of show_text pycairo function for subpixel-precise text positioning
- Updated autoShrink logic
- Increased size of some special characters
- Small updates to font.confs and default chains
This commit is contained in:
Ochi Wolfe 2013-08-31 23:18:24 +02:00
parent 3327051521
commit 70c04baf9c
18 changed files with 78 additions and 106 deletions
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64
TextureCreator/lib/TexturePainter.py
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@ -27,11 +27,12 @@ SCRIPTS_DIR = "scripts"
class GridConfig:
def __init__(self, args):
self.imageSize = (args[0], args[1])
self.cellSize = (32, 64)
self.begin = (32, 44)
self.spacing = (40, 72)
self.cellCount = (25, 14)
self.imageSize = (args[0], args[1])
self.cellSize = (32, 64)
self.begin = (32, 44)
self.spacing = (40, 72)
self.cellCount = (25, 14)
self.baselineOffset = 18.0
class CharConfig:
def __init__(self, args):
@ -44,10 +45,9 @@ class FontConfig:
def __init__(self, fontConfPath):
self.offsetX = 0
self.offsetY = 0
self.offsetXUnit = ""
self.offsetYUnit = ""
self.offsetXUnit = "abs"
self.offsetYUnit = "abs"
self.perCharConfigs = {}
self.guessingChar = "X"
self.scale = 0.75
self.scaleUnit = "cellHeight"
self.autoShrink = False
@ -59,19 +59,16 @@ class FontConfig:
while fontConf.more():
if fontConf.getCmd() == "offset":
[self.offsetX, self.offsetY, self.offsetXUnit, self.offsetYUnit] = fontConf.getArgs([int, int, str, str])
[self.offsetX, self.offsetY, self.offsetXUnit, self.offsetYUnit] = fontConf.getArgs([float, float, str, str])
elif fontConf.getCmd() == "scale":
[self.scale, self.scaleUnit] = fontConf.getArgs([float, str])
elif fontConf.getCmd() == "guessingChar":
self.guessingChar = fontConf.getArgs([unicode])[0]
elif fontConf.getCmd() == "enableAutoShrink":
self.autoShrink = True
elif fontConf.getCmd() == "charOffset":
args = fontConf.getArgs([unicode, int, int, float, float])
elif fontConf.getCmd() == "charSettings":
args = fontConf.getArgs([unicode, float, float, float, float])
self.perCharConfigs[args[0]] = CharConfig(args[1:])
def getCharConfig(self, char):
@ -134,6 +131,10 @@ class TexturePainter:
elif script.getCmd() == "setCellCount":
self.gridConfig.cellCount = script.getArgs([int, int])
elif script.getCmd() == "setBaselineOffset":
args = script.getArgs([float, str])
self.gridConfig.baselineOffset = args[0] * self.convertScaleUnit(args[1])
elif script.getCmd() == "drawLineBetweenCells":
self.lineBetweenCells(*[int(arg) for arg in script.getArgs([int, int, int, int, int, int, int, int, int])])
@ -234,37 +235,28 @@ class TexturePainter:
self.cairoContext.set_font_size(self.fontSize)
self.fontExtents = FontExtents(self.cairoContext)
self.fontExtents.update(self.fontConfig.guessingChar)
self.guessedYOffset = self.fontExtents.ySize / 2
def jumpToCell(self, x, y):
self.currentCol = int(x)
self.currentRow = int(y)
def drawChar(self, char):
fontSizeX = self.fontSize
fontSizeY = self.fontSize
if self.fontConfig.autoShrink:
self.cairoContext.set_font_size(1)
self.fontExtents.update(char)
if self.fontExtents.xSize > 0:
widthGuess = self.gridConfig.cellSize[0] / self.fontExtents.xSize
if widthGuess < self.fontSize:
fontSizeX = widthGuess
charConfig = self.fontConfig.getCharConfig(char)
fontSizeX *= charConfig.scaleX
fontSizeY *= charConfig.scaleY
fontSizeX = self.fontSize * charConfig.scaleX
fontSizeY = self.fontSize * charConfig.scaleY
self.cairoContext.set_font_matrix(cairo.Matrix(xx = fontSizeX, yy = fontSizeY))
self.fontExtents.update(char)
xOffset = -self.fontExtents.xAdvance / 2
yOffset = self.guessedYOffset
if self.fontConfig.autoShrink:
if self.fontExtents.xSize > self.gridConfig.cellSize[0]:
fontSizeX *= self.gridConfig.cellSize[0] / self.fontExtents.xSize
self.cairoContext.set_font_matrix(cairo.Matrix(xx = fontSizeX, yy = fontSizeY))
self.fontExtents.update(char)
xOffset = -self.fontExtents.xAdvance / 2.0
yOffset = self.gridConfig.baselineOffset
xOffset += self.fontConfig.offsetX * self.convertScaleUnit(self.fontConfig.offsetXUnit)
yOffset += self.fontConfig.offsetY * self.convertScaleUnit(self.fontConfig.offsetYUnit)
@ -276,8 +268,10 @@ class TexturePainter:
y = self.gridConfig.begin[1] + self.currentRow * self.gridConfig.spacing[1] + yOffset
self.cairoContext.move_to(x, y)
self.cairoContext.show_text(char)
self.cairoContext.text_path(char)
self.cairoContext.fill()
self.currentCol += 1
if self.currentCol >= self.gridConfig.cellCount[0]:
self.currentRow += 1