mirror of
https://github.com/gryf/wmaker.git
synced 2025-12-18 20:10:29 +01:00
24e223dc27
As pointed by coverity, the case 'index < 0' cannot be true because it was already earlier and handled with an early return. Signed-off-by: Christophe CURIS <christophe.curis@free.fr>
697 lines
18 KiB
C
697 lines
18 KiB
C
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#include "WINGsP.h"
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typedef struct W_PopUpButton {
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W_Class widgetClass;
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WMView *view;
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void *clientData;
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WMAction *action;
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char *caption;
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WMArray *items;
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short selectedItemIndex;
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short highlightedItem;
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WMView *menuView; /* override redirect popup menu */
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WMHandlerID timer; /* for autoscroll */
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/**/ int scrollStartY; /* for autoscroll */
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struct {
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unsigned int pullsDown:1;
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unsigned int configured:1;
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unsigned int insideMenu:1;
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unsigned int enabled:1;
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} flags;
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} PopUpButton;
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#define MENU_BLINK_DELAY 60000
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#define MENU_BLINK_COUNT 2
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#define SCROLL_DELAY 10
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#define DEFAULT_WIDTH 60
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#define DEFAULT_HEIGHT 20
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#define DEFAULT_CAPTION ""
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static void destroyPopUpButton(PopUpButton * bPtr);
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static void paintPopUpButton(PopUpButton * bPtr);
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static void handleEvents(XEvent * event, void *data);
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static void handleActionEvents(XEvent * event, void *data);
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static void resizeMenu(PopUpButton * bPtr);
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WMPopUpButton *WMCreatePopUpButton(WMWidget * parent)
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{
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PopUpButton *bPtr;
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W_Screen *scr = W_VIEW(parent)->screen;
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bPtr = wmalloc(sizeof(PopUpButton));
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bPtr->widgetClass = WC_PopUpButton;
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bPtr->view = W_CreateView(W_VIEW(parent));
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if (!bPtr->view) {
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wfree(bPtr);
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return NULL;
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}
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bPtr->view->self = bPtr;
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WMCreateEventHandler(bPtr->view, ExposureMask | StructureNotifyMask
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| ClientMessageMask, handleEvents, bPtr);
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W_ResizeView(bPtr->view, DEFAULT_WIDTH, DEFAULT_HEIGHT);
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bPtr->caption = wstrdup(DEFAULT_CAPTION);
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WMCreateEventHandler(bPtr->view, ButtonPressMask | ButtonReleaseMask, handleActionEvents, bPtr);
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bPtr->flags.enabled = 1;
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bPtr->items = WMCreateArrayWithDestructor(4, (WMFreeDataProc *) WMDestroyMenuItem);
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bPtr->selectedItemIndex = -1;
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bPtr->menuView = W_CreateUnmanagedTopView(scr);
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W_ResizeView(bPtr->menuView, bPtr->view->size.width, 1);
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WMCreateEventHandler(bPtr->menuView, ButtonPressMask | ButtonReleaseMask
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| EnterWindowMask | LeaveWindowMask | ButtonMotionMask
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| ExposureMask, handleActionEvents, bPtr);
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return bPtr;
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}
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void WMSetPopUpButtonAction(WMPopUpButton * bPtr, WMAction * action, void *clientData)
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{
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CHECK_CLASS(bPtr, WC_PopUpButton);
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bPtr->action = action;
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bPtr->clientData = clientData;
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}
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WMMenuItem *WMAddPopUpButtonItem(WMPopUpButton * bPtr, const char *title)
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{
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WMMenuItem *item;
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CHECK_CLASS(bPtr, WC_PopUpButton);
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item = WMCreateMenuItem();
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WMSetMenuItemTitle(item, title);
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WMAddToArray(bPtr->items, item);
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if (bPtr->menuView && bPtr->menuView->flags.realized)
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resizeMenu(bPtr);
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return item;
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}
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WMMenuItem *WMInsertPopUpButtonItem(WMPopUpButton * bPtr, int index, const char *title)
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{
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WMMenuItem *item;
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CHECK_CLASS(bPtr, WC_PopUpButton);
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item = WMCreateMenuItem();
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WMSetMenuItemTitle(item, title);
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WMInsertInArray(bPtr->items, index, item);
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/* if there is an selected item, update it's index to match the new
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* position */
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if (index < bPtr->selectedItemIndex)
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bPtr->selectedItemIndex++;
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if (bPtr->menuView && bPtr->menuView->flags.realized)
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resizeMenu(bPtr);
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return item;
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}
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void WMRemovePopUpButtonItem(WMPopUpButton * bPtr, int index)
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{
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CHECK_CLASS(bPtr, WC_PopUpButton);
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wassertr(index >= 0 && index < WMGetArrayItemCount(bPtr->items));
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WMDeleteFromArray(bPtr->items, index);
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if (bPtr->selectedItemIndex >= 0 && !bPtr->flags.pullsDown) {
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if (index < bPtr->selectedItemIndex)
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bPtr->selectedItemIndex--;
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else if (index == bPtr->selectedItemIndex) {
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/* reselect first item if the removed item is the
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* selected one */
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bPtr->selectedItemIndex = 0;
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if (bPtr->view->flags.mapped)
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paintPopUpButton(bPtr);
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}
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}
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if (bPtr->menuView && bPtr->menuView->flags.realized)
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resizeMenu(bPtr);
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}
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void WMSetPopUpButtonEnabled(WMPopUpButton * bPtr, Bool flag)
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{
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bPtr->flags.enabled = ((flag == 0) ? 0 : 1);
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if (bPtr->view->flags.mapped)
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paintPopUpButton(bPtr);
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}
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Bool WMGetPopUpButtonEnabled(WMPopUpButton * bPtr)
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{
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return bPtr->flags.enabled;
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}
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void WMSetPopUpButtonSelectedItem(WMPopUpButton * bPtr, int index)
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{
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wassertr(index < WMGetArrayItemCount(bPtr->items));
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/* if (index >= WMGetArrayCount(bPtr->items))
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index = -1; */
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bPtr->selectedItemIndex = index;
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if (bPtr->view->flags.mapped)
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paintPopUpButton(bPtr);
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}
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int WMGetPopUpButtonSelectedItem(WMPopUpButton * bPtr)
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{
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if (!bPtr->flags.pullsDown && bPtr->selectedItemIndex < 0)
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return -1;
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else
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return bPtr->selectedItemIndex;
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}
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void WMSetPopUpButtonText(WMPopUpButton * bPtr, const char *text)
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{
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if (bPtr->caption)
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wfree(bPtr->caption);
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if (text)
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bPtr->caption = wstrdup(text);
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else
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bPtr->caption = NULL;
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if (bPtr->view->flags.realized) {
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if (bPtr->flags.pullsDown || bPtr->selectedItemIndex < 0) {
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paintPopUpButton(bPtr);
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}
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}
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}
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void WMSetPopUpButtonItemEnabled(WMPopUpButton * bPtr, int index, Bool flag)
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{
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WMSetMenuItemEnabled(WMGetFromArray(bPtr->items, index), (flag ? 1 : 0));
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}
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Bool WMGetPopUpButtonItemEnabled(WMPopUpButton * bPtr, int index)
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{
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return WMGetMenuItemEnabled(WMGetFromArray(bPtr->items, index));
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}
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void WMSetPopUpButtonPullsDown(WMPopUpButton * bPtr, Bool flag)
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{
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bPtr->flags.pullsDown = ((flag == 0) ? 0 : 1);
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if (flag) {
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bPtr->selectedItemIndex = -1;
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}
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if (bPtr->view->flags.mapped)
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paintPopUpButton(bPtr);
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}
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int WMGetPopUpButtonNumberOfItems(WMPopUpButton * bPtr)
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{
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return WMGetArrayItemCount(bPtr->items);
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}
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char *WMGetPopUpButtonItem(WMPopUpButton * bPtr, int index)
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{
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if (index >= WMGetArrayItemCount(bPtr->items) || index < 0)
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return NULL;
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return WMGetMenuItemTitle(WMGetFromArray(bPtr->items, index));
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}
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WMMenuItem *WMGetPopUpButtonMenuItem(WMPopUpButton * bPtr, int index)
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{
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return WMGetFromArray(bPtr->items, index);
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}
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static void paintPopUpButton(PopUpButton * bPtr)
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{
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W_Screen *scr = bPtr->view->screen;
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char *caption;
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Pixmap pixmap;
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if (bPtr->flags.pullsDown) {
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caption = bPtr->caption;
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} else {
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if (bPtr->selectedItemIndex < 0) {
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/* if no item selected, show the caption */
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caption = bPtr->caption;
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} else {
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caption = WMGetPopUpButtonItem(bPtr, bPtr->selectedItemIndex);
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}
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}
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pixmap = XCreatePixmap(scr->display, bPtr->view->window,
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bPtr->view->size.width, bPtr->view->size.height, scr->depth);
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XFillRectangle(scr->display, pixmap, WMColorGC(scr->gray), 0, 0,
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bPtr->view->size.width, bPtr->view->size.height);
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W_DrawRelief(scr, pixmap, 0, 0, bPtr->view->size.width, bPtr->view->size.height, WRRaised);
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if (caption) {
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W_PaintText(bPtr->view, pixmap, scr->normalFont, 6,
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(bPtr->view->size.height - WMFontHeight(scr->normalFont)) / 2,
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bPtr->view->size.width, WALeft,
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bPtr->flags.enabled ? scr->black : scr->darkGray, False, caption, strlen(caption));
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}
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if (bPtr->flags.pullsDown) {
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XCopyArea(scr->display, scr->pullDownIndicator->pixmap,
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pixmap, scr->copyGC, 0, 0, scr->pullDownIndicator->width,
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scr->pullDownIndicator->height,
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bPtr->view->size.width - scr->pullDownIndicator->width - 4,
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(bPtr->view->size.height - scr->pullDownIndicator->height) / 2);
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} else {
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int x, y;
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x = bPtr->view->size.width - scr->popUpIndicator->width - 4;
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y = (bPtr->view->size.height - scr->popUpIndicator->height) / 2;
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XSetClipOrigin(scr->display, scr->clipGC, x, y);
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XSetClipMask(scr->display, scr->clipGC, scr->popUpIndicator->mask);
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XCopyArea(scr->display, scr->popUpIndicator->pixmap, pixmap,
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scr->clipGC, 0, 0, scr->popUpIndicator->width, scr->popUpIndicator->height, x, y);
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}
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XCopyArea(scr->display, pixmap, bPtr->view->window, scr->copyGC, 0, 0,
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bPtr->view->size.width, bPtr->view->size.height, 0, 0);
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XFreePixmap(scr->display, pixmap);
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}
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static void handleEvents(XEvent * event, void *data)
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{
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PopUpButton *bPtr = (PopUpButton *) data;
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CHECK_CLASS(data, WC_PopUpButton);
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switch (event->type) {
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case Expose:
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if (event->xexpose.count != 0)
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break;
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paintPopUpButton(bPtr);
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break;
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case DestroyNotify:
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destroyPopUpButton(bPtr);
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break;
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}
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}
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static void paintMenuEntry(PopUpButton * bPtr, int index, int highlight)
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{
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W_Screen *scr = bPtr->view->screen;
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int yo;
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int width, itemHeight, itemCount;
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char *title;
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itemCount = WMGetArrayItemCount(bPtr->items);
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if (index < 0 || index >= itemCount)
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return;
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itemHeight = bPtr->view->size.height;
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width = bPtr->view->size.width;
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yo = (itemHeight - WMFontHeight(scr->normalFont)) / 2;
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if (!highlight) {
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XClearArea(scr->display, bPtr->menuView->window, 0, index * itemHeight, width, itemHeight, False);
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return;
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}
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XFillRectangle(scr->display, bPtr->menuView->window, WMColorGC(scr->white),
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1, index * itemHeight + 1, width - 3, itemHeight - 3);
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title = WMGetPopUpButtonItem(bPtr, index);
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W_DrawRelief(scr, bPtr->menuView->window, 0, index * itemHeight, width, itemHeight, WRRaised);
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W_PaintText(bPtr->menuView, bPtr->menuView->window, scr->normalFont, 6,
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index * itemHeight + yo, width, WALeft, scr->black, False, title, strlen(title));
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if (!bPtr->flags.pullsDown && index == bPtr->selectedItemIndex) {
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XCopyArea(scr->display, scr->popUpIndicator->pixmap,
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bPtr->menuView->window, scr->copyGC, 0, 0,
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scr->popUpIndicator->width, scr->popUpIndicator->height,
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width - scr->popUpIndicator->width - 4,
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index * itemHeight + (itemHeight - scr->popUpIndicator->height) / 2);
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}
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}
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static Pixmap makeMenuPixmap(PopUpButton * bPtr)
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{
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Pixmap pixmap;
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W_Screen *scr = bPtr->view->screen;
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WMMenuItem *item;
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WMArrayIterator iter;
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int yo, i;
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int width, height, itemHeight;
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itemHeight = bPtr->view->size.height;
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width = bPtr->view->size.width;
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height = itemHeight * WMGetArrayItemCount(bPtr->items);
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yo = (itemHeight - WMFontHeight(scr->normalFont)) / 2;
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pixmap = XCreatePixmap(scr->display, bPtr->view->window, width, height, scr->depth);
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XFillRectangle(scr->display, pixmap, WMColorGC(scr->gray), 0, 0, width, height);
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i = 0;
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WM_ITERATE_ARRAY(bPtr->items, item, iter) {
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WMColor *color;
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char *text;
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text = WMGetMenuItemTitle(item);
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W_DrawRelief(scr, pixmap, 0, i * itemHeight, width, itemHeight, WRRaised);
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if (!WMGetMenuItemEnabled(item))
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color = scr->darkGray;
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else
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color = scr->black;
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W_PaintText(bPtr->menuView, pixmap, scr->normalFont, 6,
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i * itemHeight + yo, width, WALeft, color, False, text, strlen(text));
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if (!bPtr->flags.pullsDown && i == bPtr->selectedItemIndex) {
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XCopyArea(scr->display, scr->popUpIndicator->pixmap, pixmap,
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scr->copyGC, 0, 0, scr->popUpIndicator->width,
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scr->popUpIndicator->height,
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width - scr->popUpIndicator->width - 4,
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i * itemHeight + (itemHeight - scr->popUpIndicator->height) / 2);
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}
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i++;
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}
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return pixmap;
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}
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static void resizeMenu(PopUpButton * bPtr)
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{
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int height;
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height = WMGetArrayItemCount(bPtr->items) * bPtr->view->size.height;
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if (height > 0)
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W_ResizeView(bPtr->menuView, bPtr->view->size.width, height);
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}
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static void popUpMenu(PopUpButton * bPtr)
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{
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W_Screen *scr = bPtr->view->screen;
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Window dummyW;
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int x, y;
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if (!bPtr->flags.enabled)
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return;
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if (!bPtr->menuView->flags.realized) {
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W_RealizeView(bPtr->menuView);
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resizeMenu(bPtr);
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}
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if (WMGetArrayItemCount(bPtr->items) < 1)
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return;
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XTranslateCoordinates(scr->display, bPtr->view->window, scr->rootWin, 0, 0, &x, &y, &dummyW);
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if (bPtr->flags.pullsDown) {
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y += bPtr->view->size.height;
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} else {
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y -= bPtr->view->size.height * bPtr->selectedItemIndex;
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}
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W_MoveView(bPtr->menuView, x, y);
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XSetWindowBackgroundPixmap(scr->display, bPtr->menuView->window, makeMenuPixmap(bPtr));
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XClearWindow(scr->display, bPtr->menuView->window);
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if (W_VIEW_WIDTH(bPtr->menuView) != W_VIEW_WIDTH(bPtr->view))
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resizeMenu(bPtr);
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W_MapView(bPtr->menuView);
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bPtr->highlightedItem = 0;
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if (!bPtr->flags.pullsDown && bPtr->selectedItemIndex < 0)
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paintMenuEntry(bPtr, bPtr->selectedItemIndex, True);
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}
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static void popDownMenu(PopUpButton * bPtr)
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{
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W_UnmapView(bPtr->menuView);
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}
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static void autoScroll(void *data)
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{
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PopUpButton *bPtr = (PopUpButton *) data;
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int scrHeight = WMWidgetScreen(bPtr)->rootView->size.height;
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int repeat = 0;
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int dy = 0;
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if (bPtr->scrollStartY >= scrHeight - 1
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&& bPtr->menuView->pos.y + bPtr->menuView->size.height >= scrHeight - 1) {
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repeat = 1;
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if (bPtr->menuView->pos.y + bPtr->menuView->size.height - 5 <= scrHeight - 1) {
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dy = scrHeight - 1 - (bPtr->menuView->pos.y + bPtr->menuView->size.height);
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} else
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dy = -5;
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} else if (bPtr->scrollStartY <= 1 && bPtr->menuView->pos.y < 1) {
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repeat = 1;
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if (bPtr->menuView->pos.y + 5 > 1)
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dy = 1 - bPtr->menuView->pos.y;
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else
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dy = 5;
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}
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if (repeat) {
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int oldItem;
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W_MoveView(bPtr->menuView, bPtr->menuView->pos.x, bPtr->menuView->pos.y + dy);
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oldItem = bPtr->highlightedItem;
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bPtr->highlightedItem = (bPtr->scrollStartY - bPtr->menuView->pos.y)
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/ bPtr->view->size.height;
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if (oldItem != bPtr->highlightedItem) {
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WMMenuItem *item;
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paintMenuEntry(bPtr, oldItem, False);
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if (bPtr->highlightedItem >= 0 && bPtr->highlightedItem < WMGetArrayItemCount(bPtr->items)) {
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item = WMGetPopUpButtonMenuItem(bPtr, bPtr->highlightedItem);
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paintMenuEntry(bPtr, bPtr->highlightedItem, WMGetMenuItemEnabled(item));
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} else {
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bPtr->highlightedItem = -1;
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}
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}
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bPtr->timer = WMAddTimerHandler(SCROLL_DELAY, autoScroll, bPtr);
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} else {
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bPtr->timer = NULL;
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}
|
|
}
|
|
|
|
static void wheelScrollUp(PopUpButton * bPtr)
|
|
{
|
|
int testIndex = bPtr->selectedItemIndex - 1;
|
|
|
|
while (testIndex >= 0 && !WMGetPopUpButtonItemEnabled(bPtr, testIndex))
|
|
testIndex--;
|
|
if (testIndex != -1) {
|
|
WMSetPopUpButtonSelectedItem(bPtr, testIndex);
|
|
if (bPtr->action)
|
|
(*bPtr->action) (bPtr, bPtr->clientData);
|
|
}
|
|
}
|
|
|
|
static void wheelScrollDown(PopUpButton * bPtr)
|
|
{
|
|
int itemCount = WMGetArrayItemCount(bPtr->items);
|
|
int testIndex = bPtr->selectedItemIndex + 1;
|
|
|
|
while (testIndex < itemCount && !WMGetPopUpButtonItemEnabled(bPtr, testIndex))
|
|
testIndex++;
|
|
if (testIndex != itemCount) {
|
|
WMSetPopUpButtonSelectedItem(bPtr, testIndex);
|
|
if (bPtr->action)
|
|
(*bPtr->action) (bPtr, bPtr->clientData);
|
|
}
|
|
}
|
|
|
|
static void handleActionEvents(XEvent * event, void *data)
|
|
{
|
|
PopUpButton *bPtr = (PopUpButton *) data;
|
|
int oldItem;
|
|
int scrHeight = WMWidgetScreen(bPtr)->rootView->size.height;
|
|
|
|
CHECK_CLASS(data, WC_PopUpButton);
|
|
|
|
if (WMGetArrayItemCount(bPtr->items) < 1)
|
|
return;
|
|
|
|
switch (event->type) {
|
|
/* called for menuView */
|
|
case Expose:
|
|
paintMenuEntry(bPtr, bPtr->highlightedItem, True);
|
|
break;
|
|
|
|
case LeaveNotify:
|
|
bPtr->flags.insideMenu = 0;
|
|
if (bPtr->menuView->flags.mapped)
|
|
paintMenuEntry(bPtr, bPtr->highlightedItem, False);
|
|
bPtr->highlightedItem = -1;
|
|
break;
|
|
|
|
case EnterNotify:
|
|
bPtr->flags.insideMenu = 1;
|
|
break;
|
|
|
|
case MotionNotify:
|
|
if (bPtr->flags.insideMenu) {
|
|
oldItem = bPtr->highlightedItem;
|
|
bPtr->highlightedItem = event->xmotion.y / bPtr->view->size.height;
|
|
if (oldItem != bPtr->highlightedItem) {
|
|
WMMenuItem *item;
|
|
|
|
paintMenuEntry(bPtr, oldItem, False);
|
|
if (bPtr->highlightedItem >= 0 &&
|
|
bPtr->highlightedItem < WMGetArrayItemCount(bPtr->items)) {
|
|
item = WMGetPopUpButtonMenuItem(bPtr, bPtr->highlightedItem);
|
|
paintMenuEntry(bPtr, bPtr->highlightedItem, WMGetMenuItemEnabled(item));
|
|
} else {
|
|
bPtr->highlightedItem = -1;
|
|
}
|
|
|
|
}
|
|
|
|
if (event->xmotion.y_root >= scrHeight - 1 || event->xmotion.y_root <= 1) {
|
|
bPtr->scrollStartY = event->xmotion.y_root;
|
|
if (!bPtr->timer)
|
|
autoScroll(bPtr);
|
|
} else if (bPtr->timer) {
|
|
WMDeleteTimerHandler(bPtr->timer);
|
|
bPtr->timer = NULL;
|
|
}
|
|
}
|
|
break;
|
|
|
|
/* called for bPtr->view */
|
|
case ButtonPress:
|
|
if (!bPtr->flags.enabled)
|
|
break;
|
|
|
|
if (event->xbutton.button == WINGsConfiguration.mouseWheelUp) {
|
|
if (!bPtr->menuView->flags.mapped && !bPtr->flags.pullsDown) {
|
|
wheelScrollUp(bPtr);
|
|
}
|
|
break;
|
|
} else if (event->xbutton.button == WINGsConfiguration.mouseWheelDown) {
|
|
if (!bPtr->menuView->flags.mapped && !bPtr->flags.pullsDown) {
|
|
wheelScrollDown(bPtr);
|
|
}
|
|
break;
|
|
}
|
|
popUpMenu(bPtr);
|
|
if (!bPtr->flags.pullsDown) {
|
|
bPtr->highlightedItem = bPtr->selectedItemIndex;
|
|
bPtr->flags.insideMenu = 1;
|
|
} else {
|
|
bPtr->highlightedItem = -1;
|
|
bPtr->flags.insideMenu = 0;
|
|
}
|
|
XGrabPointer(bPtr->view->screen->display, bPtr->menuView->window,
|
|
False, ButtonReleaseMask | ButtonMotionMask | EnterWindowMask
|
|
| LeaveWindowMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
|
|
break;
|
|
|
|
case ButtonRelease:
|
|
if (event->xbutton.button == WINGsConfiguration.mouseWheelUp ||
|
|
event->xbutton.button == WINGsConfiguration.mouseWheelDown) {
|
|
break;
|
|
}
|
|
XUngrabPointer(bPtr->view->screen->display, event->xbutton.time);
|
|
if (!bPtr->flags.pullsDown)
|
|
popDownMenu(bPtr);
|
|
|
|
if (bPtr->timer) {
|
|
WMDeleteTimerHandler(bPtr->timer);
|
|
bPtr->timer = NULL;
|
|
}
|
|
|
|
if (bPtr->flags.insideMenu && bPtr->highlightedItem >= 0) {
|
|
WMMenuItem *item;
|
|
|
|
item = WMGetPopUpButtonMenuItem(bPtr, bPtr->highlightedItem);
|
|
|
|
if (WMGetMenuItemEnabled(item)) {
|
|
int i;
|
|
WMSetPopUpButtonSelectedItem(bPtr, bPtr->highlightedItem);
|
|
|
|
if (bPtr->flags.pullsDown) {
|
|
for (i = 0; i < MENU_BLINK_COUNT; i++) {
|
|
paintMenuEntry(bPtr, bPtr->highlightedItem, False);
|
|
XSync(bPtr->view->screen->display, 0);
|
|
wusleep(MENU_BLINK_DELAY);
|
|
paintMenuEntry(bPtr, bPtr->highlightedItem, True);
|
|
XSync(bPtr->view->screen->display, 0);
|
|
wusleep(MENU_BLINK_DELAY);
|
|
}
|
|
}
|
|
paintMenuEntry(bPtr, bPtr->highlightedItem, False);
|
|
popDownMenu(bPtr);
|
|
if (bPtr->action)
|
|
(*bPtr->action) (bPtr, bPtr->clientData);
|
|
}
|
|
}
|
|
if (bPtr->menuView->flags.mapped)
|
|
popDownMenu(bPtr);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void destroyPopUpButton(PopUpButton * bPtr)
|
|
{
|
|
if (bPtr->timer) {
|
|
WMDeleteTimerHandler(bPtr->timer);
|
|
}
|
|
|
|
WMFreeArray(bPtr->items);
|
|
|
|
if (bPtr->caption)
|
|
wfree(bPtr->caption);
|
|
|
|
/* have to destroy explicitly because the popup is a toplevel */
|
|
W_DestroyView(bPtr->menuView);
|
|
|
|
wfree(bPtr);
|
|
}
|