357 lines
10 KiB
C++
357 lines
10 KiB
C++
//- sixten: Rows and columns.
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inline void UI_RowBegin(u32 Flags, string Name)
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{
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UI_SetNextLayoutAxis(Axis2_X);
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ui_box *Box = UI_MakeBox(Flags, Name);
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UI_PushParent(Box);
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}
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inline void UI_RowEnd(void)
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{
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UI_PopParent();
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}
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inline void UI_ColumnBegin(u32 Flags, string Name)
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{
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UI_SetNextLayoutAxis(Axis2_Y);
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ui_box *Box = UI_MakeBox(Flags, Name);
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UI_PushParent(Box);
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}
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inline void UI_ColumnEnd(void)
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{
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UI_PopParent();
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}
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//- sixten: Compositions
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inline void UI_PushAxisSize(axis2 Axis, ui_size Size)
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{
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if(Axis == Axis2_X)
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{
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UI_PushWidth(Size);
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}
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else
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{
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UI_PushHeight(Size);
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}
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}
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inline void UI_PopAxisSize(axis2 Axis)
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{
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if(Axis == Axis2_X)
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{
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UI_PopWidth();
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}
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else
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{
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UI_PopHeight();
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}
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}
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inline void UI_SetNextAxisSize(axis2 Axis, ui_size Size)
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{
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if(Axis == Axis2_X)
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{
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UI_SetNextWidth(Size);
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}
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else
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{
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UI_SetNextHeight(Size);
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}
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}
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//- sixten: Spacing
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static ui_box *UI_NamedSpacer(ui_size Size, string String)
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{
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ui_box *Parent = UI_TopParent();
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UI_SetNextAxisSize(Parent->LayoutAxis, Size);
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ui_box *Box = UI_MakeBox(0, String);
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return(Box);
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}
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static ui_box *UI_NamedSpacerF(ui_size Size, char *Format, ...)
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{
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temporary_memory Scratch = GetScratch(0, 0);
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va_list Arguments;
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va_start(Arguments, Format);
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string String = PushFormatVariadic(Scratch.Arena, Format, Arguments);
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va_end(Arguments);
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ui_box *Box = UI_NamedSpacer(Size, String);
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ReleaseScratch(Scratch);
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return(Box);
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}
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static void UI_Spacer(ui_size Size)
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{
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UI_NamedSpacer(Size, StrLit(""));
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}
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//- sixten: Scrollable regions
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//- sixten: Common widgets
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static ui_box *UI_Label(string String)
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{
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ui_box *Box = UI_MakeBox(UI_BoxFlag_DrawText, String);
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return(Box);
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}
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static ui_box *UI_LabelF(char *Format, ...)
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{
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temporary_memory Scratch = GetScratch(0, 0);
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va_list Arguments;
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va_start(Arguments, Format);
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string String = PushFormatVariadic(Scratch.Arena, Format, Arguments);
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va_end(Arguments);
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ui_box *Box = UI_MakeBox(UI_BoxFlag_DrawText, String);
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ReleaseScratch(Scratch);
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return(Box);
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}
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static ui_signal UI_Button(string String)
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{
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ui_box *Box = UI_MakeBox(UI_BoxFlag_DrawText|
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UI_BoxFlag_DrawBackground|
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UI_BoxFlag_DrawBorder|
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UI_BoxFlag_HotAnimation|
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UI_BoxFlag_ActiveAnimation|
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UI_BoxFlag_Clickable,
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String);
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ui_signal Signal = UI_SignalFromBox(Box);
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return(Signal);
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}
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static ui_signal UI_ButtonF(char *Format, ...)
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{
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temporary_memory Scratch = GetScratch(0, 0);
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va_list Arguments;
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va_start(Arguments, Format);
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string String = PushFormatVariadic(Scratch.Arena, Format, Arguments);
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va_end(Arguments);
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ui_box *Box = UI_MakeBox(UI_BoxFlag_DrawText|
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UI_BoxFlag_DrawBackground|
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UI_BoxFlag_DrawBorder|
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UI_BoxFlag_HotAnimation|
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UI_BoxFlag_ActiveAnimation|
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UI_BoxFlag_Clickable,
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String);
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ui_signal Signal = UI_SignalFromBox(Box);
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ReleaseScratch(Scratch);
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return(Signal);
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}
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static ui_signal UI_Checkbox(b32 *Checked, string String)
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{
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UI_SetNextSize(UI_ChildrenSum(1, 1), UI_ChildrenSum(1, 1));
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UI_SetNextLayoutAxis(Axis2_X);
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ui_box *ContainerBox = UI_MakeBox(UI_BoxFlag_Clickable, String);
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UI_Parent(ContainerBox)
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{
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r32 OpacityTransition = AnimationCurve_AnimateValueF(*Checked, *Checked, 0.15, "UI Checkbox Transition %p", Checked);
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v4 TextColor = UI_TopTextColor();
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TextColor.a = OpacityTransition;
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UI_CornerRadius(2) UI_Size(UI_Em(1, 1), UI_Em(1, 1)) UI_Font(Font_Icons) UI_TextColor(TextColor)
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UI_MakeBoxF(UI_BoxFlag_DrawBorder|UI_BoxFlag_DrawText, "%U", FontIcon_Cancel);
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UI_Size(UI_TextContent(15, 1), UI_Em(1, 1)) UI_Label(String);
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}
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ui_signal Signal = UI_SignalFromBox(ContainerBox);
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if(Signal.Hovering)
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{
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Platform.SetCursor(PlatformCursor_Hand);
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}
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if(Signal.Pressed)
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{
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*Checked = !*Checked;
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}
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return(Signal);
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}
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//- sixten: Scrollable regions
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static ui_signal UI_Scrollbar(axis2 Axis, string Name, r32 Size, r32 Offset)
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{
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ui_signal Signal;
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UI_SetNextAxisSize(Axis, UI_Percent(1, 0));
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UI_SetNextAxisSize(Opposite(Axis), UI_Em(1, 1));
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UI_SetNextBackgroundColor(Darken(UI_TopBackgroundColor(), 2));
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UI_SetNextLayoutAxis(Axis);
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UI_Parent(UI_MakeBox(UI_BoxFlag_DrawBorder|UI_BoxFlag_DrawBackground, Name))
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{
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UI_SetNextSize(UI_Em(1, 1), UI_Em(1, 1));
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UI_SetNextFont(Font_Icons);
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UI_MakeBoxF(UI_BoxFlag_DrawText, "%U", Axis?FontIcon_UpDir:FontIcon_LeftDir);
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UI_Spacer(UI_Pixels(Offset, 1));
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UI_SetNextAxisSize(Axis, UI_Pixels(Size, 1));
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UI_SetNextAxisSize(Opposite(Axis), UI_Percent(1, 1));
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Signal = UI_SignalFromBox(UI_MakeBox(UI_BoxFlag_DrawBorder |
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UI_BoxFlag_DrawBackground |
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UI_BoxFlag_Clickable |
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UI_BoxFlag_HotAnimation |
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UI_BoxFlag_ActiveAnimation,
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StrLit("Slider")));
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UI_Spacer(UI_Percent(1, 0));
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UI_SetNextSize(UI_Em(1, 1), UI_Em(1, 1));
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UI_SetNextFont(Font_Icons);
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UI_MakeBoxF(UI_BoxFlag_DrawText, "%U", Axis?FontIcon_DownDir:FontIcon_RightDir);
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}
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return(Signal);
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}
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/*
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Goal for next week: Be able to make basic dialog trees.
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Goal for tomorrow: Scrollable regions and basic text editing (with line wrapping).
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*/
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static void UI_ScrollBegin(r32 *X, r32 *Y, string Name)
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{
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u32 Flags = 0;
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b32 AllowOnX = (X != 0);
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b32 AllowOnY = (Y != 0);
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UI_RowBegin(UI_BoxFlag_Clip|UI_BoxFlag_DrawBorder, Name);
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{
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UI_SetNextSize(UI_Percent(1, 0), UI_Percent(1, 0));
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UI_ColumnBegin();
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{
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if(AllowOnX)
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{
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Flags |= UI_BoxFlag_OverflowX;
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UI_SetNextOffsetX(-(*X));
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}
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if(AllowOnY)
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{
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Flags |= UI_BoxFlag_OverflowY;
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UI_SetNextOffsetY(-(*Y));
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}
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UI_SetNextSize(AllowOnX?UI_ChildrenSum(1, 1):UI_Percent(1, 0),
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AllowOnY?UI_ChildrenSum(1, 1):UI_Percent(1, 0));
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ui_box *ScrollableBox = UI_MakeBox(Flags, StrLit("Scrollable Box"));
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UI_PushParent(ScrollableBox);
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}
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}
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}
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static void UI_ScrollEnd(r32 *X, r32 *Y)
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{
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b32 AllowOnX = (X != 0);
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b32 AllowOnY = (Y != 0);
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ui_box *ScrollableBox = UI_TopParent();
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{
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{
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UI_PopParent();
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if(AllowOnX)
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{
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r32 TotalWidth = UI_CalculateBoxSize(ScrollableBox, Axis2_X);
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r32 ViewWidth = UI_CalculateBoxSize(ScrollableBox->Parent->Parent, Axis2_X);
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if(ViewWidth / TotalWidth < 1)
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{
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r32 TotalScrollWidth = ViewWidth - ScrollableBox->FontSize*2;
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r32 ScrollScale = TotalScrollWidth / TotalWidth;
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// sixten(TODO): Add a max of 1 em, and figure out the associated algebra.
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r32 ScrollWidth = ViewWidth*ScrollScale;
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r32 ScrollOffset = (*X)*ScrollScale;
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ui_signal Signal = UI_Scrollbar(Axis2_X, StrLit("Scroll X"), ScrollWidth, ScrollOffset);
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{
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if(Signal.Dragging)
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{
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if(Signal.Pressed)
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{
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UI_StoreDragR32(*X);
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}
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r32 StartOffset = UI_GetDragR32();
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r32 EndOffset = StartOffset + Signal.DragDelta.x/ScrollScale;
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AnimationCurve_AnimateValueDirect(EndOffset, 0.2, X);
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}
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}
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}
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*X = Clamp(*X, 0, Max(0.0, TotalWidth - ViewWidth));
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}
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}
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UI_ColumnEnd();
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if(AllowOnY)
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{
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UI_SetNextSize(UI_ChildrenSum(1, 1), UI_Percent(1, 0));
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UI_Column()
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{
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r32 TotalHeight = UI_CalculateBoxSize(ScrollableBox, Axis2_Y);
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r32 ViewHeight = UI_CalculateBoxSize(ScrollableBox->Parent->Parent, Axis2_Y);
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if(ViewHeight / TotalHeight < 1)
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{
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r32 TotalScrollHeight = ViewHeight - ScrollableBox->FontSize*2;
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r32 ScrollScale = TotalScrollHeight / TotalHeight;
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// sixten(TODO): Add a max of 1 em, and figure out the associated algebra.
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r32 ScrollHeight = ViewHeight*ScrollScale;
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r32 ScrollOffset = (*Y)*ScrollScale;
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ui_signal Signal = UI_Scrollbar(Axis2_Y, StrLit("Scroll Y"), ScrollHeight, ScrollOffset);
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{
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if(Signal.Dragging)
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{
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if(Signal.Pressed)
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{
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UI_StoreDragR32(*Y);
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}
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r32 StartOffset = UI_GetDragR32();
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r32 EndOffset = StartOffset + Signal.DragDelta.y/ScrollScale;
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AnimationCurve_AnimateValueDirect(EndOffset, 0.2, Y);
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}
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}
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}
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*Y = Clamp(*Y, 0, Max(0.0, TotalHeight - ViewHeight));
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}
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// sixten: Add padding
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if(AllowOnX && AllowOnY)
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{
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UI_SetNextSize(UI_Em(1, 1), UI_Em(1, 1));
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UI_SetNextBackgroundColor(Darken(UI_TopBackgroundColor(), 2));
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UI_MakeBox(UI_BoxFlag_DrawBorder|UI_BoxFlag_DrawBackground, StrLit("Padding"));
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}
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}
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}
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UI_RowEnd();
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} |