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Introduce the possiblity to draw certain frames with alpha blending on top of

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an existing background. It's not supported by many frame types yet, but BButton
and TextControl frames work as well as the soft recessed frame which many
controls use.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29762 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stephan Aßmus 2009-03-28 19:37:43 +00:00
parent 06ab171868
commit 4f57909806
2 changed files with 106 additions and 47 deletions
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5
headers/os/interface/ControlLook.h
View File

@ -61,7 +61,9 @@ public:
B_ACTIVATED = 1 << 2,
B_HOVER = 1 << 3,
B_DISABLED = 1 << 4,
B_DEFAULT_BUTTON = 1 << 5
B_DEFAULT_BUTTON = 1 << 5,
B_BLEND_FRAME = 1 << 16
};
virtual BAlignment DefaultLabelAlignment() const;
@ -253,6 +255,7 @@ protected:
BRect& rect, const rgb_color& base,
float contrast = 1.0f,
float brightness = 1.0f,
uint32 flags = 0,
uint32 borders = B_ALL_BORDERS);
void _DrawFrame(BView* view, BRect& rect,

148
src/kits/interface/ControlLook.cpp
View File

@ -480,7 +480,7 @@ BControlLook::DrawCheckBox(BView* view, BRect& rect, const BRect& updateRect,
rgb_color navigationColor = ui_color(B_KEYBOARD_NAVIGATION_COLOR);
if (flags & B_DISABLED) {
_DrawOuterResessedFrame(view, rect, base, 0.0);
_DrawOuterResessedFrame(view, rect, base, 0.0, 1.0, flags);
dark1BorderColor = tint_color(base, 1.15);
dark2BorderColor = tint_color(base, 1.15);
@ -494,7 +494,7 @@ BControlLook::DrawCheckBox(BView* view, BRect& rect, const BRect& updateRect,
dark2BorderColor = dark1BorderColor;
} else {
_DrawOuterResessedFrame(view, rect, base, 0.6);
_DrawOuterResessedFrame(view, rect, base, 0.6, 1.0, flags);
dark1BorderColor = tint_color(base, 1.40);
dark2BorderColor = tint_color(base, 1.38);
@ -713,7 +713,7 @@ BControlLook::DrawScrollViewFrame(BView* view, BRect& rect,
rgb_color scrollbarFrameColor = tint_color(base, B_DARKEN_2_TINT);
if (border == B_FANCY_BORDER)
_DrawOuterResessedFrame(view, rect, base, 1.0, 1.0, borders);
_DrawOuterResessedFrame(view, rect, base, 1.0, 1.0, flags, borders);
if (flags & B_FOCUSED) {
rgb_color focusColor = ui_color(B_KEYBOARD_NAVIGATION_COLOR);
@ -731,7 +731,7 @@ BControlLook::DrawScrollViewFrame(BView* view, BRect& rect,
borders = _borders;
borders &= ~B_TOP_BORDER;
_DrawOuterResessedFrame(view, horizontalScrollBarFrame, base,
1.0, 1.0, borders);
1.0, 1.0, flags, borders);
_DrawFrame(view, horizontalScrollBarFrame, scrollbarFrameColor,
scrollbarFrameColor, scrollbarFrameColor, scrollbarFrameColor,
borders);
@ -743,7 +743,7 @@ BControlLook::DrawScrollViewFrame(BView* view, BRect& rect,
borders = _borders;
borders &= ~B_LEFT_BORDER;
_DrawOuterResessedFrame(view, verticalScrollBarFrame, base,
1.0, 1.0, borders);
1.0, 1.0, flags, borders);
_DrawFrame(view, verticalScrollBarFrame, scrollbarFrameColor,
scrollbarFrameColor, scrollbarFrameColor, scrollbarFrameColor,
borders);
@ -1433,7 +1433,7 @@ BControlLook::DrawBorder(BView* view, BRect& rect, const BRect& updateRect,
scrollbarFrameColor = ui_color(B_KEYBOARD_NAVIGATION_COLOR);
if (border == B_FANCY_BORDER)
_DrawOuterResessedFrame(view, rect, base, 1.0, 1.0, borders);
_DrawOuterResessedFrame(view, rect, base, 1.0, 1.0, flags, borders);
_DrawFrame(view, rect, scrollbarFrameColor, scrollbarFrameColor,
scrollbarFrameColor, scrollbarFrameColor, borders);
@ -1474,24 +1474,33 @@ BControlLook::DrawTextControlBorder(BView* view, BRect& rect,
rgb_color navigationColor = ui_color(B_KEYBOARD_NAVIGATION_COLOR);
if (flags & B_DISABLED) {
_DrawOuterResessedFrame(view, rect, base, 0.0, 1.0, borders);
_DrawOuterResessedFrame(view, rect, base, 0.0, 1.0, flags, borders);
dark1BorderColor = tint_color(base, 1.15);
dark2BorderColor = tint_color(base, 1.15);
if (flags & B_BLEND_FRAME)
dark1BorderColor = (rgb_color){ 0, 0, 0, 40 };
else
dark1BorderColor = tint_color(base, 1.15);
dark2BorderColor = dark1BorderColor;
} else if (flags & B_CLICKED) {
dark1BorderColor = tint_color(base, 1.50);
dark2BorderColor = tint_color(base, 1.49);
// BCheckBox uses this to indicate the clicked state...
_DrawFrame(view, rect,
dark1BorderColor, dark1BorderColor,
dark2BorderColor, dark2BorderColor);
dark2BorderColor = dark1BorderColor;
} else {
_DrawOuterResessedFrame(view, rect, base, 0.6, 1.0, borders);
_DrawOuterResessedFrame(view, rect, base, 0.6, 1.0, flags, borders);
dark1BorderColor = tint_color(base, 1.40);
dark2BorderColor = tint_color(base, 1.38);
if (flags & B_BLEND_FRAME) {
dark1BorderColor = (rgb_color){ 0, 0, 0, 102 };
dark2BorderColor = (rgb_color){ 0, 0, 0, 97 };
} else {
dark1BorderColor = tint_color(base, 1.40);
dark2BorderColor = tint_color(base, 1.38);
}
}
if ((flags & B_DISABLED) == 0 && (flags & B_FOCUSED)) {
@ -1499,9 +1508,20 @@ BControlLook::DrawTextControlBorder(BView* view, BRect& rect,
dark2BorderColor = navigationColor;
}
_DrawFrame(view, rect,
dark1BorderColor, dark1BorderColor,
dark2BorderColor, dark2BorderColor, borders);
if (flags & B_BLEND_FRAME) {
drawing_mode oldMode = view->DrawingMode();
view->SetDrawingMode(B_OP_ALPHA);
_DrawFrame(view, rect,
dark1BorderColor, dark1BorderColor,
dark2BorderColor, dark2BorderColor, borders);
view->SetDrawingMode(oldMode);
} else {
_DrawFrame(view, rect,
dark1BorderColor, dark1BorderColor,
dark2BorderColor, dark2BorderColor, borders);
}
}
@ -1618,14 +1638,21 @@ BControlLook::_DrawButtonFrame(BView* view, BRect& rect,
rgb_color dark2BorderColor;
if ((flags & B_DISABLED) == 0) {
dark1BorderColor = tint_color(base, 1.33);
dark2BorderColor = tint_color(base, 1.45);
if (flags & B_BLEND_FRAME) {
dark1BorderColor = (rgb_color){ 0, 0, 0, 75 };
dark2BorderColor = (rgb_color){ 0, 0, 0, 95 };
} else {
dark1BorderColor = tint_color(base, 1.33);
dark2BorderColor = tint_color(base, 1.45);
}
if (flags & B_DEFAULT_BUTTON) {
// TODO: B_BLEND_FRAME
dark2BorderColor = tint_color(dark1BorderColor, 1.5);
dark1BorderColor = tint_color(dark1BorderColor, 1.35);
}
} else {
// TODO: B_BLEND_FRAME
dark1BorderColor = tint_color(base, 1.147);
dark2BorderColor = tint_color(base, 1.24);
@ -1648,6 +1675,7 @@ BControlLook::_DrawButtonFrame(BView* view, BRect& rect,
}
if (flags & B_DEFAULT_BUTTON) {
// TODO: B_BLEND_FRAME
float focusTint = 1.2;
if (flags & B_DISABLED)
focusTint = (B_NO_TINT + focusTint) / 2;
@ -1668,49 +1696,77 @@ BControlLook::_DrawButtonFrame(BView* view, BRect& rect,
_DrawOuterResessedFrame(view, rect, focusColor,
contrast * (((flags & B_DISABLED) ? 0.3 : 0.8)),
brightness * (((flags & B_DISABLED) ? 1.0 : 0.9)),
borders);
flags, borders);
} else {
// bevel around external border
_DrawOuterResessedFrame(view, rect, background,
contrast * ((flags & B_DISABLED) ? 0.0 : 1.0), brightness * 1.0,
borders);
flags, borders);
}
_DrawFrame(view, rect, dark1BorderColor, dark1BorderColor,
dark2BorderColor, dark2BorderColor, borders);
if (flags & B_BLEND_FRAME) {
drawing_mode oldDrawingMode = view->DrawingMode();
view->SetDrawingMode(B_OP_ALPHA);
_DrawFrame(view, rect, dark1BorderColor, dark1BorderColor,
dark2BorderColor, dark2BorderColor, borders);
view->SetDrawingMode(oldDrawingMode);
} else {
_DrawFrame(view, rect, dark1BorderColor, dark1BorderColor,
dark2BorderColor, dark2BorderColor, borders);
}
}
void
BControlLook::_DrawOuterResessedFrame(BView* view, BRect& rect,
const rgb_color& base, float contrast, float brightness, uint32 borders)
const rgb_color& base, float contrast, float brightness, uint32 flags,
uint32 borders)
{
// colors
float tintLight = kEdgeBevelLightTint;
float tintShadow = kEdgeBevelShadowTint;
if (flags & B_BLEND_FRAME) {
// assumes the background has already been painted
drawing_mode oldDrawingMode = view->DrawingMode();
view->SetDrawingMode(B_OP_ALPHA);
if (contrast == 0.0) {
tintLight = B_NO_TINT;
tintShadow = B_NO_TINT;
} else if (contrast != 1.0) {
tintLight = B_NO_TINT + (tintLight - B_NO_TINT) * contrast;
tintShadow = B_NO_TINT + (tintShadow - B_NO_TINT) * contrast;
uint8 alpha = uint8(20 * contrast);
uint32 white = uint8(255 * brightness);
rgb_color borderBevelShadow = (rgb_color){ 0, 0, 0, alpha };
rgb_color borderBevelLight = (rgb_color){ white, white, white, alpha };
_DrawFrame(view, rect, borderBevelShadow, borderBevelShadow,
borderBevelLight, borderBevelLight, borders);
view->SetDrawingMode(oldDrawingMode);
} else {
// colors
float tintLight = kEdgeBevelLightTint;
float tintShadow = kEdgeBevelShadowTint;
if (contrast == 0.0) {
tintLight = B_NO_TINT;
tintShadow = B_NO_TINT;
} else if (contrast != 1.0) {
tintLight = B_NO_TINT + (tintLight - B_NO_TINT) * contrast;
tintShadow = B_NO_TINT + (tintShadow - B_NO_TINT) * contrast;
}
rgb_color borderBevelShadow = tint_color(base, tintShadow);
rgb_color borderBevelLight = tint_color(base, tintLight);
if (brightness < 1.0) {
borderBevelShadow.red = uint8(borderBevelShadow.red * brightness);
borderBevelShadow.green = uint8(borderBevelShadow.green * brightness);
borderBevelShadow.blue = uint8(borderBevelShadow.blue * brightness);
borderBevelLight.red = uint8(borderBevelLight.red * brightness);
borderBevelLight.green = uint8(borderBevelLight.green * brightness);
borderBevelLight.blue = uint8(borderBevelLight.blue * brightness);
}
_DrawFrame(view, rect, borderBevelShadow, borderBevelShadow,
borderBevelLight, borderBevelLight, borders);
}
rgb_color borderBevelShadow = tint_color(base, tintShadow);
rgb_color borderBevelLight = tint_color(base, tintLight);
if (brightness < 1.0) {
borderBevelShadow.red = uint8(borderBevelShadow.red * brightness);
borderBevelShadow.green = uint8(borderBevelShadow.green * brightness);
borderBevelShadow.blue = uint8(borderBevelShadow.blue * brightness);
borderBevelLight.red = uint8(borderBevelLight.red * brightness);
borderBevelLight.green = uint8(borderBevelLight.green * brightness);
borderBevelLight.blue = uint8(borderBevelLight.blue * brightness);
}
_DrawFrame(view, rect, borderBevelShadow, borderBevelShadow,
borderBevelLight, borderBevelLight, borders);
}