627 lines
22 KiB
C
627 lines
22 KiB
C
internal v2
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DrawCharacter (render_quad_batch_constructor* BatchConstructor, char C, bitmap_font Font, v2 Position, v4 Color, r32 FontScale)
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{
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s32 GlyphDataIndex = GetIndexForCodepoint(Font, C);
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codepoint_bitmap CodepointInfo = Font.CodepointValues[GlyphDataIndex];
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r32 MinX = Position.x + CodepointInfo.XOffset * FontScale;
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r32 MinY = Position.y + CodepointInfo.YOffset * FontScale;
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r32 MaxX = MinX + (CodepointInfo.Width) * FontScale;
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r32 MaxY = MinY + (CodepointInfo.Height) * FontScale;
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PushQuad2DOnBatch(BatchConstructor,
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v2{MinX, MinY}, v2{MaxX, MinY},
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v2{MaxX, MaxY}, v2{MinX, MaxY},
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CodepointInfo.UVMin, CodepointInfo.UVMax,
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Color);
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return v2{Position.x + CodepointInfo.Width * FontScale, Position.y};
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}
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internal v2
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DrawString (render_command_buffer* RenderBuffer, string String, bitmap_font* Font, s32 PointSize, v2 Position, v4 Color)
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{
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DEBUG_TRACK_FUNCTION;
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v2 LowerRight = Position;
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render_quad_batch_constructor BatchConstructor = PushRenderTexture2DBatch(RenderBuffer, String.Length,
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Font->BitmapMemory,
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Font->BitmapTextureHandle,
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Font->BitmapWidth,
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Font->BitmapHeight,
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Font->BitmapBytesPerPixel,
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Font->BitmapStride);
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r32 FontScale = (r32)PointSize / Font->PixelHeight;
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v2 RegisterPosition = Position;
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char* C = String.Memory;
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for (s32 i = 0; i < String.Length; i++)
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{
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v2 PositionAfterCharacter = DrawCharacter(&BatchConstructor, *C, *Font, RegisterPosition, Color, FontScale);
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RegisterPosition.x = PositionAfterCharacter.x;
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C++;
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}
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LowerRight.x = RegisterPosition.x;
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return LowerRight;
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}
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internal void
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DrawCursor (render_quad_batch_constructor* BatchConstructor, v2 Position, v4 Color, bitmap_font Font, r32 FontScale)
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{
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v2 Min = Position;
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v2 Max = Position + v2{(r32)Font.MaxCharWidth * FontScale, Font.Ascent + Font.Descent * FontScale};
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PushQuad2DOnBatch(BatchConstructor, Min, Max, Color);
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}
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internal v2
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DrawStringWithCursor (render_command_buffer* RenderBuffer, string String, s32 CursorPosition, bitmap_font* Font, s32 PointSize, v2 Position, v4 Color, v4 CursorColor)
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{
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DEBUG_TRACK_FUNCTION;
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v2 LowerRight = Position;
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// NOTE(Peter): We push this on first so that the cursor will be drawn underneath any character it may overlap with
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render_quad_batch_constructor CursorBatch = PushRenderQuad2DBatch(RenderBuffer, 1);
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render_quad_batch_constructor BatchConstructor = PushRenderTexture2DBatch(RenderBuffer, String.Length,
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Font->BitmapMemory,
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Font->BitmapTextureHandle,
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Font->BitmapWidth,
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Font->BitmapHeight,
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Font->BitmapBytesPerPixel,
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Font->BitmapStride);
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r32 FontScale = (r32)PointSize / Font->PixelHeight;
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v2 RegisterPosition = Position;
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char* C = String.Memory;
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for (s32 i = 0; i < String.Length; i++)
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{
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if (i == CursorPosition)
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{
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DrawCursor(&CursorBatch, RegisterPosition, GreenV4, *Font, FontScale);
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}
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v2 PositionAfterCharacter = DrawCharacter(&BatchConstructor, *C, *Font, RegisterPosition, Color, FontScale);
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RegisterPosition.x = PositionAfterCharacter.x;
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C++;
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}
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if (CursorPosition == String.Length)
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{
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DrawCursor(&CursorBatch, RegisterPosition, GreenV4, *Font, FontScale);
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}
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LowerRight.x = RegisterPosition.x;
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return LowerRight;
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}
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struct interface_config
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{
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v4 PanelBGColors[4];
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v4 ButtonColor_Inactive, ButtonColor_Active, ButtonColor_Selected;
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v4 TextColor;
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bitmap_font* Font;
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r32 FontSize;
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v2 Margin;
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};
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struct button_result
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{
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b32 Pressed;
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r32 Advance;
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};
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internal button_result
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EvaluateButton (render_command_buffer* RenderBuffer,
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v2 Min, v2 Max, v2 Margin, string Label,
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v4 IdleBGColor, v4 HotBGColor, v4 IdleTextColor, v4 HotTextColor,
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bitmap_font* Font, input Input)
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{
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button_result Result = {};
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Result.Pressed = false;
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v4 BGColor = IdleBGColor;
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v4 TextColor = IdleTextColor;
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v2 MousePos = v2{(r32)Input.New->MouseX, (r32)Input.New->MouseY};
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if (PointIsInRange(MousePos, Min, Max))
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{
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if (KeyTransitionedDown(Input, KeyCode_MouseLeftButton))
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{
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Result.Pressed = true;
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}
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else
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{
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BGColor = HotBGColor;
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TextColor = HotTextColor;
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}
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}
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PushRenderQuad2D(RenderBuffer, Min, Max, BGColor);
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DrawString(RenderBuffer, Label, Font, Font->PixelHeight, Min + Margin, TextColor);
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Result.Advance = (Max.y - Min.y) + Margin.y;
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return Result;
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}
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internal button_result
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EvaluateButton (render_command_buffer* RenderBuffer, v2 Min, v2 Max, string Label, interface_config Config, input Input)
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{
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button_result Result = EvaluateButton(RenderBuffer,
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Min, Max, Config.Margin, Label,
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Config.ButtonColor_Inactive, Config.ButtonColor_Active,
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Config.TextColor, Config.TextColor,
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Config.Font, Input);
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return Result;
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}
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internal button_result
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EvaluateSelectableButton (render_command_buffer* RenderBuffer, v2 Min, v2 Max, string Label, interface_config Config, input Input, b32 Selected)
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{
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v4 BGColor = Config.ButtonColor_Inactive;
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if (Selected)
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{
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BGColor = Config.ButtonColor_Selected;
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}
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button_result Result = EvaluateButton(RenderBuffer,
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Min, Max, Config.Margin, Label,
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Config.ButtonColor_Inactive, Config.ButtonColor_Active,
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Config.TextColor, Config.TextColor,
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Config.Font, Input);
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return Result;
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}
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struct multi_option_label_result
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{
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b32 Pressed;
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s32 IndexPressed;
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r32 Advance;
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};
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internal multi_option_label_result
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EvaluateMultiOptionLabel (render_command_buffer* RenderBuffer,
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v2 Min, v2 Max, string Label, string Options[],
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interface_config Config, input Input)
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{
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multi_option_label_result Result = {};
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Result.Pressed = false;
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DrawString(RenderBuffer, Label, Config.Font, 14, Min + Config.Margin, Config.TextColor);
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r32 ButtonSide = (Max.y - Min.y) - (2 * Config.Margin.y);
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v2 ButtonDim = v2{ButtonSide, ButtonSide};
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v2 ButtonPos = Max - (ButtonDim + Config.Margin);
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for (s32 b = 0; b < sizeof(Options) / sizeof(Options[0]); b++)
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{
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button_result Button = EvaluateButton(RenderBuffer, ButtonPos, ButtonPos + ButtonDim,
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Options[b], Config, Input);
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if (Button.Pressed)
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{
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Result.Pressed = true;
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Result.IndexPressed = b;
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}
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}
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Result.Advance = (Max.y - Min.y) + Config.Margin.y;
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return Result;
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}
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// NOTE(Peter): returns IndexPressed = -1 if the button itself is pressed, as opposed
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// to one of its options
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internal multi_option_label_result
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EvaluateMultiOptionButton (render_command_buffer* RenderBuffer, v2 Min, v2 Max, string Text, string Options[], b32 Selected,
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interface_config Config, input Input)
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{
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multi_option_label_result Result = {};
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Result.Pressed = false;
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s32 OptionsCount = sizeof(Options) / sizeof(Options[0]);
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r32 ButtonSide = (Max.y - Min.y) - (2 * Config.Margin.y);
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v2 ButtonDim = v2{ButtonSide, ButtonSide};
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v2 FirstButtonPos = Max - ((ButtonDim + Config.Margin) * OptionsCount);
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v2 NewMax = v2{FirstButtonPos.x - Config.Margin.x, Max.y};
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button_result MainButton = EvaluateSelectableButton(RenderBuffer, Min, NewMax, Text, Config, Input, Selected);
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if (MainButton.Pressed)
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{
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Result.Pressed = true;
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Result.IndexPressed = -1;
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}
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v2 ButtonPos = Max - (ButtonDim + Config.Margin);
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for (s32 b = 0; b < OptionsCount; b++)
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{
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button_result Button = EvaluateButton(RenderBuffer, ButtonPos, ButtonPos + ButtonDim,
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Options[b], Config, Input);
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if (Button.Pressed)
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{
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Result.Pressed = true;
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Result.IndexPressed = b;
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}
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}
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Result.Advance = (Max.y - Min.y) + Config.Margin.y;
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return Result;
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}
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struct slider_result
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{
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r32 Percent;
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r32 Advance;
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};
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internal slider_result
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EvaluateSlider (render_command_buffer* RenderBuffer, v2 Min, v2 Max, string Label, r32 Percent, interface_config Config, input Input)
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{
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slider_result Result = {};
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v4 BGColor = Config.ButtonColor_Inactive;
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v4 FillColor = Config.ButtonColor_Selected;
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r32 DisplayPercent = Percent;
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v2 MousePos = v2{(r32)Input.New->MouseX, (r32)Input.New->MouseY};
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if (PointIsInRange(MousePos, Min, Max))
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{
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BGColor = Config.ButtonColor_Active;
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}
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if (KeyDown(Input, KeyCode_MouseLeftButton))
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{
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v2 MouseDownPos = v2{(r32)Input.MouseDownX, (r32)Input.MouseDownY};
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if (PointIsInRange(MouseDownPos, Min, Max))
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{
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r32 TempFillPercent = (MousePos.y - Min.y) / (Max.y - Min.y);
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DisplayPercent = GSClamp(0.0f, TempFillPercent, 1.0f);
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}
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}
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r32 FillHeight = ((Max.y - Min.y) - 4) * DisplayPercent;
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PushRenderQuad2D(RenderBuffer, Min, Max, BGColor);
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PushRenderQuad2D(RenderBuffer, Min + v2{2, 2}, v2{Max.x - 2, Min.y + 2 + FillHeight}, FillColor);
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// TODO(Peter): display the actual value of the slider
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DrawString(RenderBuffer, Label, Config.Font, 14, Min, Config.TextColor);
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Result.Percent = DisplayPercent;
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Result.Advance = (Max.y - Min.y) + Config.Margin.y;
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return Result;
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}
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struct panel_result
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{
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s32 Depth;
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v2 NextPanelMin;
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v2 ChildMin, ChildMax;
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};
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internal panel_result
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EvaluatePanel (render_command_buffer* RenderBuffer, v2 Min, v2 Max, s32 Depth, interface_config Config, input Input)
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{
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panel_result Result = {};
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Result.Depth = Depth;
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Result.ChildMin = Min + Config.Margin;
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Result.ChildMax = Max - Config.Margin;
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Result.NextPanelMin = v2{Max.x, Min.y};
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v4 BG = Config.PanelBGColors[Depth];
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PushRenderQuad2D(RenderBuffer, Min, Max, BG);
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return Result;
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}
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internal panel_result
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EvaluatePanel (render_command_buffer* RenderBuffer, v2 Min, v2 Max, string Label, s32 Depth, interface_config Config, input Input)
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{
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panel_result Result = EvaluatePanel(RenderBuffer, Min, Max, Depth, Config, Input);
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v2 TextPos = v2{
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Min.x + Config.Margin.x,
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Max.y - ((r32)NewLineYOffset(*Config.Font) + Config.Margin.y)
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};
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DrawString(RenderBuffer, Label, Config.Font, 14, TextPos, Config.TextColor);
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Result.ChildMax = v2{Max.x, TextPos.y} - Config.Margin;
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return Result;
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}
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internal panel_result
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EvaluatePanel(render_command_buffer* RenderBuffer, panel_result* ParentPanel, r32 Height, string Title, interface_config Config, input Input)
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{
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v2 Min = v2{ParentPanel->ChildMin.x, ParentPanel->ChildMax.y - Height};
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v2 Max = ParentPanel->ChildMax;
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panel_result Result = EvaluatePanel(RenderBuffer, Min, Max, Title, ParentPanel->Depth + 1, Config, Input);
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ParentPanel->ChildMax.y = Min.y - Config.Margin.y;
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return Result;
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}
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enum selection_state
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{
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Selection_None,
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Selection_Selected,
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Selection_Deselected,
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};
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struct scroll_list_result
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{
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s32 IndexSelected;
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s32 StartIndex;
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selection_state Selection;
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};
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internal scroll_list_result
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DrawOptionsList(render_command_buffer* RenderBuffer, v2 Min, v2 Max,
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string* Options, s32 OptionsCount,
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s32 Start, interface_config Config, input Input)
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{
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scroll_list_result Result = {};
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Result.IndexSelected = -1;
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Result.StartIndex = Start;
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Result.Selection = Selection_None;
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r32 OptionHeight = NewLineYOffset(*Config.Font) + (2 * Config.Margin.y);
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r32 OptionOffset = OptionHeight + Config.Margin.y;
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s32 OptionsToDisplay = ((Max.y - Min.y) / OptionHeight) - 2;
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OptionsToDisplay = GSMin(OptionsToDisplay, (OptionsCount - Start));
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v2 ButtonMin = v2{Min.x, Max.y - OptionHeight};
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v2 ButtonMax = v2{Max.x, Max.y};
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string* OptionCursor = Options + Start;
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for (s32 i = 0; i < OptionsToDisplay; i++)
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{
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button_result Button = EvaluateButton(RenderBuffer, ButtonMin, ButtonMax,
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*OptionCursor,
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Config, Input);
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if (Button.Pressed)
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{
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Result.IndexSelected = Start + i;
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Result.Selection = Selection_Selected;
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}
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OptionCursor++;
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ButtonMin.y -= OptionOffset;
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ButtonMax.y -= OptionOffset;
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}
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r32 HalfWidthWithMargin = ((Max.x - Min.x) / 2.0f) - Config.Margin.x;
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string DownArrowString = MakeStringLiteral(" v ");
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string UpArrowString = MakeStringLiteral(" ^ ");
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button_result Down = EvaluateButton(RenderBuffer, Min, v2{Min.x + HalfWidthWithMargin, Min.y + OptionHeight},
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DownArrowString, Config, Input);
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button_result Up = EvaluateButton(RenderBuffer, v2{Min.x + HalfWidthWithMargin + Config.Margin.x, Min.y},
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v2{Max.x, Min.y + OptionHeight},
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UpArrowString, Config, Input);
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if (Down.Pressed)
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{
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Result.StartIndex += 1;
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}
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if (Up.Pressed)
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{
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Result.StartIndex -= 1;
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}
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Result.StartIndex = GSClamp(0, Result.StartIndex, OptionsCount);
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return Result;
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}
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internal scroll_list_result
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DrawSelectableOptionsList(render_command_buffer* RenderBuffer, v2 Min, v2 Max,
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string* Options, s32 OptionsCount,
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s32 Start, s32 Selected, interface_config Config, input Input)
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{
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scroll_list_result Result = {};
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Result.IndexSelected = Selected;
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Result.StartIndex = Start;
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Result.Selection = Selection_None;
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r32 OptionHeight = NewLineYOffset(*Config.Font) + (2 * Config.Margin.y);
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r32 OptionOffset = OptionHeight + Config.Margin.y;
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s32 OptionsToDisplay = ((Max.y - Min.y) / OptionHeight) - 2;
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OptionsToDisplay = GSMin(OptionsToDisplay, (OptionsCount - Start));
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string* OptionCursor = 0;
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OptionCursor = Options + Start;
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v2 ButtonMin = v2{Min.x, Max.y - OptionHeight};
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v2 ButtonMax = v2{Max.x, Max.y};
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for (s32 i = 0; i < OptionsToDisplay; i++)
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{
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button_result Button = EvaluateSelectableButton(RenderBuffer, ButtonMin, ButtonMax,
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*OptionCursor,
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Config, Input, (Selected == Start + i));
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if (Button.Pressed)
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{
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s32 SelectedIndex = Start + i;
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if (SelectedIndex == Result.IndexSelected)
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{
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Result.Selection = Selection_Deselected;
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Result.IndexSelected = -1;
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}
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else
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{
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Result.Selection = Selection_Selected;
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Result.IndexSelected = Start + i;
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}
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}
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OptionCursor++;
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ButtonMin.y -= OptionOffset;
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ButtonMax.y -= OptionOffset;
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}
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r32 HalfWidthWithMargin = ((Max.x - Min.x) / 2.0f) - Config.Margin.x;
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string DownArrowString = MakeStringLiteral(" v ");
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string UpArrowString = MakeStringLiteral(" ^ ");
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button_result Down = EvaluateButton(RenderBuffer, Min, v2{Min.x + HalfWidthWithMargin, Min.y + OptionHeight},
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DownArrowString, Config, Input);
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button_result Up = EvaluateButton(RenderBuffer, v2{Min.x + HalfWidthWithMargin + Config.Margin.x, Min.y},
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v2{Max.x, Min.y + OptionHeight},
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UpArrowString, Config, Input);
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if (Down.Pressed)
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{
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Result.StartIndex += 1;
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}
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if (Up.Pressed)
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{
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Result.StartIndex -= 1;
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}
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Result.StartIndex = GSClamp(0, Result.StartIndex, OptionsCount);
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return Result;
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}
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internal r32
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EvaluateColorChannelSlider (render_command_buffer* RenderBuffer, v4 ChannelMask, v2 Min, v2 Max, r32 Current, input Input)
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{
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r32 Result = Current;
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render_quad_batch_constructor Batch = PushRenderQuad2DBatch(RenderBuffer, 2);
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v4 LeftColor = ChannelMask * 0;
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LeftColor.a = 1.f;
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v4 RightColor = ChannelMask;
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PushQuad2DOnBatch(&Batch,
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Min, v2{Max.x, Min.y}, Max, v2{Min.x, Max.y},
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v2{0, 0}, v2{1, 0}, v2{1, 1}, v2{0, 1},
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LeftColor, RightColor, RightColor, LeftColor);
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if (KeyDown(Input, KeyCode_MouseLeftButton))
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{
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v2 MouseDownPos = v2{(r32)Input.MouseDownX, (r32)Input.MouseDownY};
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if (PointIsInRange(MouseDownPos, Min, Max))
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{
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|
Result = ((r32)Input.New->MouseX - Min.x) / (Max.x - Min.x);
|
|
Result = GSClamp01(Result);
|
|
}
|
|
}
|
|
|
|
r32 DragBarWidth = 8;
|
|
v2 DragBarMin = v2{GSLerp(Min.x, Max.x, Result) - (DragBarWidth / 2), Min.y - 2};
|
|
v2 DragBarMax = DragBarMin + v2{DragBarWidth, (Max.y - Min.y) + 4};
|
|
|
|
PushQuad2DOnBatch(&Batch, DragBarMin, DragBarMax, v4{.3f, .3f, .3f, 1.f});
|
|
|
|
return Result;
|
|
}
|
|
|
|
internal b32
|
|
EvaluateColorPicker (render_command_buffer* RenderBuffer, v4* Value, v2 PanelMin, interface_config Config, input Input)
|
|
{
|
|
b32 ShouldClose = false;
|
|
|
|
v2 PanelMax = v2{400, 500};
|
|
if (KeyTransitionedDown(Input, KeyCode_MouseLeftButton) &&
|
|
!PointIsInRange(v2{(r32)Input.New->MouseX, (r32)Input.New->MouseY}, PanelMin, PanelMax))
|
|
{
|
|
ShouldClose = true;
|
|
}
|
|
else
|
|
{
|
|
PushRenderQuad2D(RenderBuffer, PanelMin, PanelMax, v4{.5f, .5f, .5f, 1.f});
|
|
|
|
v2 TitleMin = v2{PanelMin.x + 5, PanelMax.y - (Config.Font->PixelHeight + 5)};
|
|
DrawString(RenderBuffer, MakeStringLiteral("Color Picker"), Config.Font, Config.Font->PixelHeight,
|
|
TitleMin, WhiteV4);
|
|
|
|
v2 SliderDim = v2{(PanelMax.x - PanelMin.x) - 20, 32};
|
|
// channel sliders
|
|
v2 SliderMin = TitleMin - v2{0, SliderDim.y + 10};
|
|
Value->r = EvaluateColorChannelSlider(RenderBuffer, RedV4, SliderMin, SliderMin + SliderDim, Value->r, Input);
|
|
SliderMin.y -= SliderDim.y + 10;
|
|
Value->g = EvaluateColorChannelSlider(RenderBuffer, GreenV4, SliderMin, SliderMin + SliderDim, Value->g, Input);
|
|
SliderMin.y -= SliderDim.y + 10;
|
|
Value->b = EvaluateColorChannelSlider(RenderBuffer, BlueV4, SliderMin, SliderMin + SliderDim, Value->b, Input);
|
|
SliderMin.y -= SliderDim.y + 10;
|
|
Value->a = EvaluateColorChannelSlider(RenderBuffer, WhiteV4, SliderMin, SliderMin + SliderDim, Value->a, Input);
|
|
|
|
// Output Color Display
|
|
SliderMin.y -= 100;
|
|
PushRenderQuad2D(RenderBuffer, SliderMin, SliderMin + v2{75, 75}, *Value);
|
|
}
|
|
|
|
return ShouldClose;
|
|
}
|
|
|
|
struct search_lister_result
|
|
{
|
|
s32 HotItem;
|
|
s32 SelectedItem;
|
|
b32 ShouldRemainOpen;
|
|
};
|
|
|
|
typedef char* search_lister_get_list_item_at_offset(u8* ListMemory, s32 ListLength, s32 Offset);
|
|
|
|
internal search_lister_result
|
|
EvaluateSearchLister (render_command_buffer* RenderBuffer, v2 TopLeft, v2 Dimension, string Title,
|
|
s32 ListLength, u8* ListMemory, s32 HotItem, search_lister_get_list_item_at_offset* GetListItem,
|
|
string* SearchString, s32 SearchStringCursorPosition,
|
|
bitmap_font* Font, interface_config Config, input Input)
|
|
{
|
|
Assert(GetListItem != 0);
|
|
|
|
search_lister_result Result = {};
|
|
Result.ShouldRemainOpen = true;
|
|
Result.HotItem = HotItem;
|
|
Result.SelectedItem = -1;
|
|
|
|
// Title Bar
|
|
PushRenderQuad2D(RenderBuffer, v2{TopLeft.x, TopLeft.y - 30}, v2{TopLeft.x + 300, TopLeft.y}, v4{.3f, .3f, .3f, 1.f});
|
|
DrawString(RenderBuffer, Title, Font, 14, v2{TopLeft.x, TopLeft.y - 25}, WhiteV4);
|
|
TopLeft.y -= 30;
|
|
|
|
// Search Bar
|
|
PushRenderQuad2D(RenderBuffer, v2{TopLeft.x, TopLeft.y - 30}, v2{TopLeft.x + 300, TopLeft.y}, v4{.3f, .3f, .3f, 1.f});
|
|
DrawStringWithCursor(RenderBuffer, *SearchString, SearchStringCursorPosition, Font, 14, v2{TopLeft.x, TopLeft.y - 25}, WhiteV4, GreenV4);
|
|
TopLeft.y -= 30;
|
|
|
|
s32 VisibleItemIndex = 0;
|
|
for (s32 i = 0; i < ListLength; i++)
|
|
{
|
|
char* ListItemText = GetListItem(ListMemory, ListLength, i);
|
|
Assert(ListItemText);
|
|
string ListItemString = MakeStringLiteral(ListItemText);
|
|
|
|
if (SearchString->Length == 0 ||
|
|
StringContainsStringCaseInsensitive(ListItemString, *SearchString))
|
|
{
|
|
v2 Min = v2{TopLeft.x, TopLeft.y - 30};
|
|
v2 Max = Min + Dimension - v2{0, Config.Margin.y};
|
|
|
|
v4 ButtonColor = Config.ButtonColor_Inactive;
|
|
if (VisibleItemIndex == HotItem)
|
|
{
|
|
ButtonColor = Config.ButtonColor_Active;
|
|
}
|
|
|
|
button_result Button = EvaluateButton(RenderBuffer, Min, Max, Config.Margin, ListItemString,
|
|
ButtonColor, ButtonColor, Config.TextColor, Config.TextColor,
|
|
Config.Font, Input);
|
|
if (Button.Pressed)
|
|
{
|
|
Result.SelectedItem = i;
|
|
}
|
|
|
|
TopLeft.y -= 30;
|
|
VisibleItemIndex++;
|
|
}
|
|
}
|
|
|
|
return Result;
|
|
} |