diff --git a/src/gx/gh_ui.pas b/src/gx/gh_ui.pas
index be597b0dfbb75b933b1ed816eca27470b6d1eb10..b23362bdb35207813803c6fc5682483ac94fd6de 100644 (file)
--- a/src/gx/gh_ui.pas
+++ b/src/gx/gh_ui.pas
TUIControl = class
public
type TActionCB = procedure (me: TUIControl; uinfo: Integer);
+ type TCloseRequestCB = function (me: TUIControl): Boolean; // top-level windows will call this before closing with icon/keyboard
public
const ClrIdxActive = 0;
mCanFocus: Boolean;
mChildren: array of TUIControl;
mFocused: TUIControl; // valid only for top-level controls
- mGrab: TUIControl; // valid only for top-level controls
mEscClose: Boolean; // valid only for top-level controls
mEatKeys: Boolean;
mDrawShadow: Boolean;
+ mCancel: Boolean;
+ mDefault: Boolean;
// colors
mCtl4Style: AnsiString;
mBackColor: array[0..ClrIdxMax] of TGxRGBA;
function getFocused (): Boolean; inline;
procedure setFocused (v: Boolean); inline;
+ function getCanFocus (): Boolean; inline;
+
function isMyChild (ctl: TUIControl): Boolean;
function findFirstFocus (): TUIControl;
function findNextFocus (cur: TUIControl): TUIControl;
function findPrevFocus (cur: TUIControl): TUIControl;
+ function findCancelControl (): TUIControl;
+ function findDefaulControl (): TUIControl;
+
+ function findControlById (const aid: AnsiString): TUIControl;
+
procedure activated (); virtual;
procedure blurred (); virtual;
public
actionCB: TActionCB;
+ closeRequestCB: TCloseRequestCB;
private
mDefSize: TLaySize; // default size
procedure toGlobal (lx, ly: Integer; out x, y: Integer); inline;
// x and y are global coords
- function controlAtXY (x, y: Integer): TUIControl;
+ function controlAtXY (x, y: Integer; allowDisabled: Boolean=false): TUIControl;
+
+ procedure doAction ();
- function mouseEvent (var ev: THMouseEvent): Boolean; virtual; // returns `true` if event was eaten
- function keyEvent (var ev: THKeyEvent): Boolean; virtual; // returns `true` if event was eaten
+ procedure mouseEvent (var ev: THMouseEvent); virtual; // returns `true` if event was eaten
+ procedure keyEvent (var ev: THKeyEvent); virtual; // returns `true` if event was eaten
function prevSibling (): TUIControl;
function nextSibling (): TUIControl;
procedure appendChild (ctl: TUIControl); virtual;
+ procedure close (); // this closes *top-level* control
+
public
property id: AnsiString read mId;
property styleId: AnsiString read mStyleId;
property focused: Boolean read getFocused write setFocused;
property escClose: Boolean read mEscClose write mEscClose;
property eatKeys: Boolean read mEatKeys write mEatKeys;
+ property cancel: Boolean read mCancel write mCancel;
+ property defctl: Boolean read mDefault write mDefault;
+ property canFocus: Boolean read getCanFocus write mCanFocus;
+ property ctlById[const aid: AnsiString]: TUIControl read findControlById; default;
end;
procedure drawControl (gx, gy: Integer); override;
procedure drawControlPost (gx, gy: Integer); override;
- function keyEvent (var ev: THKeyEvent): Boolean; override; // returns `true` if event was eaten
- function mouseEvent (var ev: THMouseEvent): Boolean; override; // returns `true` if event was eaten
+ procedure keyEvent (var ev: THKeyEvent); override; // returns `true` if event was eaten
+ procedure mouseEvent (var ev: THMouseEvent); override; // returns `true` if event was eaten
public
property freeOnClose: Boolean read mFreeOnClose write mFreeOnClose;
procedure drawControl (gx, gy: Integer); override;
- function mouseEvent (var ev: THMouseEvent): Boolean; override;
- function keyEvent (var ev: THKeyEvent): Boolean; override;
+ procedure mouseEvent (var ev: THMouseEvent); override;
end;
procedure drawControl (gx, gy: Integer); override;
- function mouseEvent (var ev: THMouseEvent): Boolean; override;
- function keyEvent (var ev: THKeyEvent): Boolean; override;
+ procedure mouseEvent (var ev: THMouseEvent); override;
+ procedure keyEvent (var ev: THKeyEvent); override;
end;
// ////////////////////////////////////////////////////////////////////// //
procedure drawControl (gx, gy: Integer); override;
- function mouseEvent (var ev: THMouseEvent): Boolean; override;
- function keyEvent (var ev: THKeyEvent): Boolean; override;
+ procedure mouseEvent (var ev: THMouseEvent); override;
+ procedure keyEvent (var ev: THKeyEvent); override;
end;
TUIHBox = class(TUIBox)
procedure drawControl (gx, gy: Integer); override;
- function mouseEvent (var ev: THMouseEvent): Boolean; override;
- function keyEvent (var ev: THKeyEvent): Boolean; override;
+ procedure mouseEvent (var ev: THMouseEvent); override;
+ end;
+
+ // ////////////////////////////////////////////////////////////////////// //
+ TUIButton = class(TUITextLabel)
+ public
+ constructor Create (const atext: AnsiString);
+
+ procedure AfterConstruction (); override; // so it will be correctly initialized when created from parser
+
+ function parseProperty (const prname: AnsiString; par: TTextParser): Boolean; override;
+
+ procedure drawControl (gx, gy: Integer); override;
+
+ procedure mouseEvent (var ev: THMouseEvent); override;
+ procedure keyEvent (var ev: THKeyEvent); override;
end;
// ////////////////////////////////////////////////////////////////////////// //
-function uiMouseEvent (ev: THMouseEvent): Boolean;
-function uiKeyEvent (ev: THKeyEvent): Boolean;
+procedure uiMouseEvent (var evt: THMouseEvent);
+procedure uiKeyEvent (var evt: THKeyEvent);
procedure uiDraw ();
utils;
+// ////////////////////////////////////////////////////////////////////////// //
+var
+ ctlsToKill: array of TUIControl = nil;
+
+
+procedure scheduleKill (ctl: TUIControl);
+var
+ f: Integer;
+begin
+ if (ctl = nil) then exit;
+ ctl := ctl.topLevel;
+ for f := 0 to High(ctlsToKill) do
+ begin
+ if (ctlsToKill[f] = ctl) then exit;
+ if (ctlsToKill[f] = nil) then begin ctlsToKill[f] := ctl; exit; end;
+ end;
+ SetLength(ctlsToKill, Length(ctlsToKill)+1);
+ ctlsToKill[High(ctlsToKill)] := ctl;
+end;
+
+
+procedure processKills ();
+var
+ f: Integer;
+ ctl: TUIControl;
+begin
+ for f := 0 to High(ctlsToKill) do
+ begin
+ ctl := ctlsToKill[f];
+ if (ctl = nil) then break;
+ ctlsToKill[f] := nil;
+ FreeAndNil(ctl);
+ end;
+ if (Length(ctlsToKill) > 0) then ctlsToKill[0] := nil; // just in case
+end;
+
+
// ////////////////////////////////////////////////////////////////////////// //
var
knownCtlClasses: array of record
// ////////////////////////////////////////////////////////////////////////// //
var
uiTopList: array of TUIControl = nil;
+ uiGrabCtl: TUIControl = nil;
procedure uiUpdateStyles ();
end;
-function uiMouseEvent (ev: THMouseEvent): Boolean;
+procedure uiMouseEvent (var evt: THMouseEvent);
var
+ ev: THMouseEvent;
f, c: Integer;
lx, ly: Integer;
ctmp: TUIControl;
begin
+ processKills();
+ if (evt.eaten) or (evt.cancelled) then exit;
+ ev := evt;
ev.x := trunc(ev.x/gh_ui_scale);
ev.y := trunc(ev.y/gh_ui_scale);
ev.dx := trunc(ev.dx/gh_ui_scale); //FIXME
ev.dy := trunc(ev.dy/gh_ui_scale); //FIXME
- if (Length(uiTopList) = 0) then result := false else result := uiTopList[High(uiTopList)].mouseEvent(ev);
- if not result and (ev.press) then
- begin
- for f := High(uiTopList) downto 0 do
+ try
+ if (uiGrabCtl <> nil) then
begin
- if uiTopList[f].toLocal(ev.x, ev.y, lx, ly) then
+ uiGrabCtl.mouseEvent(ev);
+ if (ev.release) then uiGrabCtl := nil;
+ ev.eat();
+ exit;
+ end;
+ if (Length(uiTopList) > 0) and (uiTopList[High(uiTopList)].mEnabled) then uiTopList[High(uiTopList)].mouseEvent(ev);
+ if (not ev.eaten) and (not ev.cancelled) and (ev.press) then
+ begin
+ for f := High(uiTopList) downto 0 do
begin
- result := true;
- if uiTopList[f].mEnabled and (f <> High(uiTopList)) then
+ if uiTopList[f].toLocal(ev.x, ev.y, lx, ly) then
begin
- uiTopList[High(uiTopList)].blurred();
- ctmp := uiTopList[f];
- ctmp.mGrab := nil;
- for c := f+1 to High(uiTopList) do uiTopList[c-1] := uiTopList[c];
- uiTopList[High(uiTopList)] := ctmp;
- ctmp.activated();
- result := ctmp.mouseEvent(ev);
+ if (uiTopList[f].mEnabled) and (f <> High(uiTopList)) then
+ begin
+ uiTopList[High(uiTopList)].blurred();
+ ctmp := uiTopList[f];
+ uiGrabCtl := nil;
+ for c := f+1 to High(uiTopList) do uiTopList[c-1] := uiTopList[c];
+ uiTopList[High(uiTopList)] := ctmp;
+ ctmp.activated();
+ ctmp.mouseEvent(ev);
+ end;
+ ev.eat();
+ exit;
end;
- exit;
end;
end;
+ finally
+ if (ev.eaten) then evt.eat();
+ if (ev.cancelled) then evt.cancel();
end;
end;
-function uiKeyEvent (ev: THKeyEvent): Boolean;
+procedure uiKeyEvent (var evt: THKeyEvent);
+var
+ ev: THKeyEvent;
begin
+ processKills();
+ if (evt.eaten) or (evt.cancelled) then exit;
+ ev := evt;
ev.x := trunc(ev.x/gh_ui_scale);
ev.y := trunc(ev.y/gh_ui_scale);
- if (Length(uiTopList) = 0) then result := false else result := uiTopList[High(uiTopList)].keyEvent(ev);
- if (ev.release) then begin result := true; exit; end;
+ try
+ if (Length(uiTopList) > 0) and (uiTopList[High(uiTopList)].mEnabled) then uiTopList[High(uiTopList)].keyEvent(ev);
+ //if (ev.release) then begin ev.eat(); exit; end;
+ finally
+ if (ev.eaten) then evt.eat();
+ if (ev.cancelled) then evt.cancel();
+ end;
end;
f, cidx: Integer;
ctl: TUIControl;
begin
+ processKills();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
try
try
if assigned(TUITopWindow(ctl).closeCB) then TUITopWindow(ctl).closeCB(ctl, 0);
finally
- if (TUITopWindow(ctl).mFreeOnClose) then FreeAndNil(ctl);
+ if (TUITopWindow(ctl).mFreeOnClose) then scheduleKill(ctl);
end;
end;
exit;
mCanFocus := true;
mChildren := nil;
mFocused := nil;
- mGrab := nil;
mEscClose := false;
mEatKeys := false;
scallowed := false;
if (strEquCI1251(prname, 'disabled')) then begin mEnabled := not parseBool(par); exit; end;
if (strEquCI1251(prname, 'escclose')) then begin mEscClose := not parseBool(par); exit; end;
if (strEquCI1251(prname, 'eatkeys')) then begin mEatKeys := not parseBool(par); exit; end;
+ if (strEquCI1251(prname, 'default')) then begin mDefault := true; exit; end;
+ if (strEquCI1251(prname, 'cancel')) then begin mCancel := true; exit; end;
result := false;
end;
procedure TUIControl.blurred ();
begin
- mGrab := nil;
+ if (uiGrabCtl = self) then uiGrabCtl := nil;
end;
ctl: TUIControl;
begin
result := false;
- if (not mEnabled) or (mWidth < 1) or (mHeight < 1) then exit;
+ if (not mEnabled) then exit;
ctl := mParent;
while (ctl <> nil) do
begin
- if (not ctl.mEnabled) or (ctl.mWidth < 1) or (ctl.mHeight < 1) then exit;
+ if (not ctl.mEnabled) then exit;
ctl := ctl.mParent;
end;
result := true;
begin
if (mEnabled = v) then exit;
mEnabled := v;
- if not v and focused then setFocused(false);
+ if (not v) and focused then setFocused(false);
end;
end;
exit;
end;
- if (not mEnabled) or (not mCanFocus) then exit;
+ if (not mEnabled) or (not canFocus) then exit;
if (tl.mFocused <> self) then
begin
- if (tl.mFocused <> nil) then tl.mFocused.blurred();
+ if (tl.mFocused <> nil) and (tl.mFocused <> nil) then tl.mFocused.blurred();
tl.mFocused := self;
- if (tl.mGrab <> self) then tl.mGrab := nil;
+ if (uiGrabCtl <> self) then uiGrabCtl := nil;
activated();
end;
end;
+function TUIControl.getCanFocus (): Boolean; inline;
+begin
+ result := (mCanFocus) and (mWidth > 0) and (mHeight > 0);
+end;
+
+
function TUIControl.isMyChild (ctl: TUIControl): Boolean;
begin
result := true;
// x and y are global coords
-function TUIControl.controlAtXY (x, y: Integer): TUIControl;
+function TUIControl.controlAtXY (x, y: Integer; allowDisabled: Boolean=false): TUIControl;
var
lx, ly: Integer;
f: Integer;
begin
result := nil;
- if (not mEnabled) or (mWidth < 1) or (mHeight < 1) then exit;
+ if (not allowDisabled) and (not mEnabled) then exit;
+ if (mWidth < 1) or (mHeight < 1) then exit;
if not toLocal(x, y, lx, ly) then exit;
for f := High(mChildren) downto 0 do
begin
- result := mChildren[f].controlAtXY(x, y);
+ result := mChildren[f].controlAtXY(x, y, allowDisabled);
if (result <> nil) then exit;
end;
result := self;
result := mChildren[f].findFirstFocus();
if (result <> nil) then exit;
end;
- if mCanFocus then result := self;
+ if canFocus then result := self;
end;
end;
result := mChildren[f].findLastFocus();
if (result <> nil) then exit;
end;
- if mCanFocus then result := self;
+ if canFocus then result := self;
end;
end;
end;
+function TUIControl.findDefaulControl (): TUIControl;
+var
+ ctl: TUIControl;
+begin
+ if mDefault then begin result := self; exit; end;
+ for ctl in mChildren do
+ begin
+ result := ctl.findDefaulControl();
+ if (result <> nil) then exit;
+ end;
+ result := nil;
+end;
+
+function TUIControl.findCancelControl (): TUIControl;
+var
+ ctl: TUIControl;
+begin
+ if mCancel then begin result := self; exit; end;
+ for ctl in mChildren do
+ begin
+ result := ctl.findCancelControl();
+ if (result <> nil) then exit;
+ end;
+ result := nil;
+end;
+
+
+function TUIControl.findControlById (const aid: AnsiString): TUIControl;
+var
+ ctl: TUIControl;
+begin
+ if (strEquCI1251(aid, mId)) then begin result := self; exit; end;
+ for ctl in mChildren do
+ begin
+ result := ctl.findControlById(aid);
+ if (result <> nil) then exit;
+ end;
+ result := nil;
+end;
+
+
procedure TUIControl.appendChild (ctl: TUIControl);
begin
if (ctl = nil) then exit;
if (mWidth+mFrameWidth < ctl.mX+ctl.mWidth) then mWidth := ctl.mX+ctl.mWidth+mFrameWidth;
if (mHeight+mFrameHeight < ctl.mY+ctl.mHeight) then mHeight := ctl.mY+ctl.mHeight+mFrameHeight;
end;
- //if (mFocused = nil) and ctl.mEnabled and ctl.mCanFocus and (ctl.mWidth > 0) and (ctl.mHeight > 0) then mFocused := ctl;
+end;
+
+
+procedure TUIControl.close (); // this closes *top-level* control
+var
+ ctl: TUIControl;
+begin
+ ctl := topLevel;
+ uiRemoveWindow(ctl);
+ if (ctl is TUITopWindow) and (TUITopWindow(ctl).mFreeOnClose) then scheduleKill(ctl); // just in case
+end;
+
+
+procedure TUIControl.doAction ();
+begin
+ if assigned(actionCB) then actionCB(self, 0);
end;
// ////////////////////////////////////////////////////////////////////////// //
-function TUIControl.mouseEvent (var ev: THMouseEvent): Boolean;
+procedure TUIControl.mouseEvent (var ev: THMouseEvent);
var
ctl: TUIControl;
begin
- result := false;
- if not mEnabled then exit;
- if (mParent = nil) then
- begin
- if (mGrab <> nil) then
- begin
- result := mGrab.mouseEvent(ev);
- if (ev.release) then mGrab := nil;
- exit;
- end;
- end;
+ if (not mEnabled) then exit;
if (mWidth < 1) or (mHeight < 1) then exit;
ctl := controlAtXY(ev.x, ev.y);
- if (ctl <> nil) and (ctl <> self) then
+ if (ctl = nil) then exit;
+ if (ctl.canFocus) and (ev.press) then
begin
if (ctl <> topLevel.mFocused) then ctl.setFocused(true);
- result := ctl.mouseEvent(ev);
- end
- else if (ctl = self) and assigned(actionCB) then
- begin
- actionCB(self, 0);
+ uiGrabCtl := ctl;
end;
+ if (ctl <> self) then ctl.mouseEvent(ev);
+ //ev.eat();
end;
-function TUIControl.keyEvent (var ev: THKeyEvent): Boolean;
+procedure TUIControl.keyEvent (var ev: THKeyEvent);
var
ctl: TUIControl;
begin
- result := false;
- if not mEnabled then exit;
- if (topLevel.mFocused <> self) and isMyChild(topLevel.mFocused) and topLevel.mFocused.mEnabled then result := topLevel.mFocused.keyEvent(ev);
- if (mParent = nil) then
+ if (not mEnabled) then exit;
+ // focused control should process keyboard first
+ if (topLevel.mFocused <> self) and isMyChild(topLevel.mFocused) and (topLevel.mFocused.mEnabled) then
+ begin
+ topLevel.mFocused.keyEvent(ev);
+ end;
+ // for top-level controls
+ if (mParent = nil) and (not ev.eaten) and (not ev.cancelled) then
begin
if (ev = 'S-Tab') then
begin
- result := true;
ctl := findPrevFocus(mFocused);
- if (ctl <> mFocused) then
- begin
- mGrab := nil;
- mFocused := ctl;
- end;
+ if (ctl <> mFocused) then ctl.setFocused(true);
+ ev.eat();
exit;
end;
if (ev = 'Tab') then
begin
- result := true;
ctl := findNextFocus(mFocused);
- if (ctl <> mFocused) then
+ if (ctl <> mFocused) then ctl.setFocused(true);
+ ev.eat();
+ exit;
+ end;
+ if (ev = 'Enter') or (ev = 'C-Enter') then
+ begin
+ ctl := findDefaulControl();
+ if (ctl <> nil) then
begin
- mGrab := nil;
- mFocused := ctl;
+ ev.eat();
+ ctl.doAction();
+ exit;
+ end;
+ end;
+ if (ev = 'Escape') then
+ begin
+ ctl := findCancelControl();
+ if (ctl <> nil) then
+ begin
+ ev.eat();
+ ctl.doAction();
+ exit;
end;
- exit;
end;
if mEscClose and (ev = 'Escape') then
begin
- result := true;
- uiRemoveWindow(self);
+ if (not assigned(closeRequestCB)) or (closeRequestCB(self)) then
+ begin
+ uiRemoveWindow(self);
+ end;
+ ev.eat();
exit;
end;
end;
- if mEatKeys then result := true;
+ if mEatKeys then ev.eat();
end;
end;
-function TUITopWindow.keyEvent (var ev: THKeyEvent): Boolean;
+procedure TUITopWindow.keyEvent (var ev: THKeyEvent);
begin
- result := inherited keyEvent(ev);
- if not getFocused then exit;
+ inherited keyEvent(ev);
+ if (ev.eaten) or (ev.cancelled) or (not mEnabled) or (not getFocused) then exit;
if (ev = 'M-F3') then
begin
- uiRemoveWindow(self);
- result := true;
+ if (not assigned(closeRequestCB)) or (closeRequestCB(self)) then
+ begin
+ uiRemoveWindow(self);
+ end;
+ ev.eat();
exit;
end;
end;
-function TUITopWindow.mouseEvent (var ev: THMouseEvent): Boolean;
+procedure TUITopWindow.mouseEvent (var ev: THMouseEvent);
var
lx, ly: Integer;
begin
- result := false;
- if not mEnabled then exit;
+ if (not mEnabled) then exit;
if (mWidth < 1) or (mHeight < 1) then exit;
if mDragging then
mDragStartX := ev.x;
mDragStartY := ev.y;
if (ev.release) then mDragging := false;
- result := true;
+ ev.eat();
exit;
end;
begin
if (ly < 8) then
begin
+ uiGrabCtl := self;
if (lx >= mFrameWidth) and (lx < mFrameWidth+3*8) then
begin
//uiRemoveWindow(self);
mDragStartX := ev.x;
mDragStartY := ev.y;
end;
- result := true;
+ ev.eat();
exit;
end;
if (lx < mFrameWidth) or (lx >= mWidth-mFrameWidth) or (ly >= mHeight-mFrameHeight) then
begin
+ uiGrabCtl := self;
mDragging := true;
mDragStartX := ev.x;
mDragStartY := ev.y;
- result := true;
+ ev.eat();
exit;
end;
end;
if (ev.release) then
begin
- if mWaitingClose and (lx >= mFrameWidth) and (lx < mFrameWidth+3*8) then
+ if mWaitingClose then
begin
- uiRemoveWindow(self);
- result := true;
+ if (lx >= mFrameWidth) and (lx < mFrameWidth+3*8) then
+ begin
+ if (not assigned(closeRequestCB)) or (closeRequestCB(self)) then
+ begin
+ uiRemoveWindow(self);
+ end;
+ end;
+ mWaitingClose := false;
+ mInClose := false;
+ ev.eat();
exit;
end;
- mWaitingClose := false;
- mInClose := false;
end;
if (ev.motion) then
if mWaitingClose then
begin
mInClose := (lx >= mFrameWidth) and (lx < mFrameWidth+3*8);
- result := true;
+ ev.eat();
exit;
end;
end;
+
+ inherited mouseEvent(ev);
end
else
begin
mInClose := false;
- if (not ev.motion) then mWaitingClose := false;
+ if (not ev.motion) and (mWaitingClose) then begin ev.eat(); mWaitingClose := false; exit; end;
end;
-
- result := inherited mouseEvent(ev);
end;
end;
-function TUISimpleText.mouseEvent (var ev: THMouseEvent): Boolean;
+procedure TUISimpleText.mouseEvent (var ev: THMouseEvent);
var
lx, ly: Integer;
begin
- result := inherited mouseEvent(ev);
- if not result and toLocal(ev.x, ev.y, lx, ly) then
+ inherited mouseEvent(ev);
+ if (not ev.eaten) and (not ev.cancelled) and (mEnabled) and toLocal(ev.x, ev.y, lx, ly) then
begin
- result := true;
+ ev.eat();
end;
end;
-function TUISimpleText.keyEvent (var ev: THKeyEvent): Boolean;
-begin
- result := inherited keyEvent(ev);
-end;
-
-
// ////////////////////////////////////////////////////////////////////////// //
constructor TUICBListBox.Create (ax, ay: Integer);
begin
end;
-function TUICBListBox.mouseEvent (var ev: THMouseEvent): Boolean;
+procedure TUICBListBox.mouseEvent (var ev: THMouseEvent);
var
lx, ly: Integer;
it: PItem;
begin
- result := inherited mouseEvent(ev);
- if not result and toLocal(ev.x, ev.y, lx, ly) then
+ inherited mouseEvent(ev);
+ if (not ev.eaten) and (not ev.cancelled) and (mEnabled) and toLocal(ev.x, ev.y, lx, ly) then
begin
- result := true;
+ ev.eat();
if (ev = 'lmb') then
begin
ly := ly div 8;
end;
-function TUICBListBox.keyEvent (var ev: THKeyEvent): Boolean;
+procedure TUICBListBox.keyEvent (var ev: THKeyEvent);
var
it: PItem;
begin
- result := inherited keyEvent(ev);
- if not getFocused then exit;
+ inherited keyEvent(ev);
+ if (ev.eaten) or (ev.cancelled) or (not mEnabled) or (not getFocused) then exit;
//result := true;
if (ev = 'Home') or (ev = 'PageUp') then
begin
- result := true;
+ ev.eat();
mCurIndex := 0;
end;
if (ev = 'End') or (ev = 'PageDown') then
begin
- result := true;
+ ev.eat();
mCurIndex := High(mItems);
end;
if (ev = 'Up') then
begin
- result := true;
+ ev.eat();
if (Length(mItems) > 0) then
begin
if (mCurIndex < 0) then mCurIndex := Length(mItems);
end;
if (ev = 'Down') then
begin
- result := true;
+ ev.eat();
if (Length(mItems) > 0) then
begin
if (mCurIndex < 0) then mCurIndex := -1;
end;
if (ev = 'Space') or (ev = 'Enter') then
begin
- result := true;
+ ev.eat();
if (mCurIndex >= 0) and (mCurIndex < Length(mItems)) and (mItems[mCurIndex].varp <> nil) then
begin
it := @mItems[mCurIndex];
end;
-function TUIBox.mouseEvent (var ev: THMouseEvent): Boolean;
+procedure TUIBox.mouseEvent (var ev: THMouseEvent);
var
lx, ly: Integer;
begin
- result := inherited mouseEvent(ev);
- if not result and toLocal(ev.x, ev.y, lx, ly) then
+ inherited mouseEvent(ev);
+ if (not ev.eaten) and (not ev.cancelled) and (mEnabled) and toLocal(ev.x, ev.y, lx, ly) then
begin
- result := true;
+ ev.eat();
end;
end;
//TODO: navigation with arrow keys, according to box orientation
-function TUIBox.keyEvent (var ev: THKeyEvent): Boolean;
+procedure TUIBox.keyEvent (var ev: THKeyEvent);
begin
- result := inherited keyEvent(ev);
+ inherited keyEvent(ev);
+ if (ev.eaten) or (ev.cancelled) or (not mEnabled) or (not getFocused) then exit;
end;
end;
-function TUITextLabel.mouseEvent (var ev: THMouseEvent): Boolean;
+procedure TUITextLabel.mouseEvent (var ev: THMouseEvent);
var
lx, ly: Integer;
begin
- result := inherited mouseEvent(ev);
- if not result and toLocal(ev.x, ev.y, lx, ly) then
+ inherited mouseEvent(ev);
+ if (not ev.eaten) and (not ev.cancelled) and (mEnabled) and toLocal(ev.x, ev.y, lx, ly) then
begin
- result := true;
+ ev.eat();
end;
end;
-function TUITextLabel.keyEvent (var ev: THKeyEvent): Boolean;
+// ////////////////////////////////////////////////////////////////////////// //
+constructor TUIButton.Create (const atext: AnsiString);
+begin
+ inherited Create(atext);
+end;
+
+
+procedure TUIButton.AfterConstruction ();
begin
- result := inherited keyEvent(ev);
+ inherited AfterConstruction();
+ mHAlign := -1;
+ mVAlign := 0;
+ mCanFocus := true;
+ mDefSize := TLaySize.Create(Length(mText)*8+8, 8);
+ mCtl4Style := 'button';
+end;
+
+
+function TUIButton.parseProperty (const prname: AnsiString; par: TTextParser): Boolean;
+begin
+ result := inherited parseProperty(prname, par);
+ if result then
+ begin
+ mDefSize := TLaySize.Create(Length(mText)*8+8*2, 8);
+ end;
+end;
+
+
+procedure TUIButton.drawControl (gx, gy: Integer);
+var
+ xpos, ypos: Integer;
+ cidx: Integer;
+ lch, rch: AnsiChar;
+begin
+ cidx := getColorIndex;
+ fillRect(gx, gy, mWidth, mHeight, mBackColor[cidx]);
+
+ if (mDefault) then begin lch := '<'; rch := '>'; end
+ else if (mCancel) then begin lch := '{'; rch := '}'; end
+ else begin lch := '['; rch := ']'; end;
+
+ if (mVAlign < 0) then ypos := 0
+ else if (mVAlign > 0) then ypos := mHeight-8
+ else ypos := (mHeight-8) div 2;
+
+ drawText8(gx, gy+ypos, lch, mTextColor[cidx]);
+ drawText8(gx+mWidth-8, gy+ypos, rch, mTextColor[cidx]);
+
+ if (Length(mText) > 0) then
+ begin
+ if (mHAlign < 0) then xpos := 0
+ else if (mHAlign > 0) then xpos := mWidth-Length(mText)*8
+ else xpos := (mWidth-Length(mText)*8) div 2;
+
+ setScissor(8, 0, mWidth-16, mHeight);
+ drawText8(gx+xpos+8, gy+ypos, mText, mTextColor[cidx]);
+ end;
+end;
+
+
+procedure TUIButton.mouseEvent (var ev: THMouseEvent);
+var
+ lx, ly: Integer;
+begin
+ inherited mouseEvent(ev);
+ if (uiGrabCtl = self) then
+ begin
+ ev.eat();
+ if (ev = '-lmb') and focused and toLocal(ev.x, ev.y, lx, ly) then
+ begin
+ doAction();
+ end;
+ exit;
+ end;
+ if (ev.eaten) or (ev.cancelled) or (not mEnabled) or not focused then exit;
+ ev.eat();
+end;
+
+
+procedure TUIButton.keyEvent (var ev: THKeyEvent);
+begin
+ inherited keyEvent(ev);
+ if (not ev.eaten) and (not ev.cancelled) and (mEnabled) then
+ begin
+ if (ev = 'Enter') or (ev = 'Space') then
+ begin
+ ev.eat();
+ doAction();
+ exit;
+ end;
+ end;
end;
registerCtlClass(TUIHLine, 'hline');
registerCtlClass(TUIVLine, 'vline');
registerCtlClass(TUITextLabel, 'label');
+ registerCtlClass(TUIButton, 'button');
end.