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WINGs: create a new type of Tri-State Switch Button (to doc)

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There are some times when we need a Switch Button (aka CheckBox) with more
than 2 states, generally to express check/uncheck/leave-as-is.

This patch extends the Button widget to support the new WBTTriState type,
similar to the existing WBTSwitch except it supports a 3rd state which is
reported to application as '-1'.

The implementation was done in order to not break the binary API. The
version have been incremented in the WINGs header to reflect the change,
but not the version in the 'configure.ac' because that have already been
done in commit c6e323e75d for the next Window Maker release.

Signed-off-by: Christophe CURIS <christophe.curis@free.fr>
This commit is contained in:
Christophe CURIS
2015-05-10 19:56:05 +02:00
committed by Carlos R. Mafra
parent 997b3e5d91
commit 976083f5b9
4 changed files with 112 additions and 7 deletions
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35
WINGs/wbutton.c
View File

@@ -17,6 +17,7 @@ typedef struct W_Button {
W_Pixmap *image;
W_Pixmap *altImage;
W_Pixmap *tsImage;
W_Pixmap *dimage;
@@ -37,7 +38,7 @@ typedef struct W_Button {
WMImagePosition imagePosition:4;
WMAlignment alignment:2;
unsigned int selected:1;
unsigned int selected:2;
unsigned int enabled:1;
@@ -183,6 +184,14 @@ WMButton *WMCreateButton(WMWidget * parent, WMButtonType type)
bPtr->altImage = WMRetainPixmap(scrPtr->radioButtonImageOn);
break;
case WBTTriState:
bPtr = WMCreateCustomButton(parent, WBBStateChangeMask);
bPtr->flags.bordered = 0;
bPtr->image = WMRetainPixmap(scrPtr->tristateButtonImageOff);
bPtr->altImage = WMRetainPixmap(scrPtr->tristateButtonImageOn);
bPtr->tsImage = WMRetainPixmap(scrPtr->tristateButtonImageTri);
break;
default:
case WBTMomentaryLight:
bPtr = WMCreateCustomButton(parent, WBBSpringLoadedMask | WBBPushLightMask);
@@ -197,7 +206,7 @@ WMButton *WMCreateButton(WMWidget * parent, WMButtonType type)
WMSetButtonText(bPtr, DEFAULT_RADIO_TEXT);
bPtr->flags.alignment = DEFAULT_RADIO_ALIGNMENT;
bPtr->flags.imagePosition = DEFAULT_RADIO_IMAGE_POSITION;
} else if (type == WBTSwitch) {
} else if (type == WBTSwitch || type == WBTTriState) {
W_ResizeView(bPtr->view, DEFAULT_SWITCH_WIDTH, DEFAULT_SWITCH_HEIGHT);
WMSetButtonText(bPtr, DEFAULT_SWITCH_TEXT);
bPtr->flags.alignment = DEFAULT_SWITCH_ALIGNMENT;
@@ -371,7 +380,10 @@ void WMSetButtonDisabledTextColor(WMButton * bPtr, WMColor * color)
void WMSetButtonSelected(WMButton * bPtr, int isSelected)
{
bPtr->flags.selected = isSelected ? 1 : 0;
if ((bPtr->flags.type == WBTTriState) && (isSelected < 0))
bPtr->flags.selected = 2;
else
bPtr->flags.selected = isSelected ? 1 : 0;
if (bPtr->view->flags.realized) {
paintButton(bPtr);
@@ -384,6 +396,9 @@ int WMGetButtonSelected(WMButton * bPtr)
{
CHECK_CLASS(bPtr, WC_Button);
if ((bPtr->flags.type == WBTTriState) && (bPtr->flags.selected == 2))
return -1;
return bPtr->flags.selected;
}
@@ -558,7 +573,9 @@ static void paintButton(Button * bPtr)
if (bPtr->flags.stateChange) {
if (bPtr->altCaption)
caption = bPtr->altCaption;
if (bPtr->altImage)
if (bPtr->flags.selected == 2)
image = bPtr->tsImage;
else if (bPtr->altImage)
image = bPtr->altImage;
if (bPtr->altTextColor)
textColor = bPtr->altTextColor;
@@ -659,6 +676,8 @@ static void handleActionEvents(XEvent * event, void *data)
case ButtonPress:
if (event->xbutton.button == Button1) {
static const unsigned int next_state[4] = { [0] = 1, [1] = 2, [2] = 0 };
bPtr->flags.prevSelected = bPtr->flags.selected;
bPtr->flags.wasPushed = 0;
bPtr->flags.pushed = 1;
@@ -667,7 +686,10 @@ static void handleActionEvents(XEvent * event, void *data)
dopaint = 1;
break;
}
bPtr->flags.selected = !bPtr->flags.selected;
if (bPtr->flags.type == WBTTriState)
bPtr->flags.selected = next_state[bPtr->flags.selected];
else
bPtr->flags.selected = !bPtr->flags.selected;
dopaint = 1;
if (bPtr->flags.continuous && !bPtr->timer) {
@@ -748,5 +770,8 @@ static void destroyButton(Button * bPtr)
if (bPtr->altImage)
WMReleasePixmap(bPtr->altImage);
if (bPtr->tsImage)
WMReleasePixmap(bPtr->tsImage);
wfree(bPtr);
}