imnodes.go 4.1 KB

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  1. package imgui
  2. // #cgo CXXFLAGS: -std=c++11
  3. // #include "imnodesWrapper.h"
  4. import "C"
  5. func ImNodesCreateContext() {
  6. C.iggImNodesCreateContext()
  7. }
  8. func ImNodesDestroyContext() {
  9. C.iggImNodesDestroyContext()
  10. }
  11. func ImNodesBeginNodeEditor() {
  12. C.iggImNodesBeginNodeEditor()
  13. }
  14. func ImNodesEndNodeEditor() {
  15. C.iggImNodesEndNodeEditor()
  16. }
  17. func ImNodesBeginNode(id int) {
  18. C.iggImNodesBeginNode(C.int(id))
  19. }
  20. func ImNodesEndNode() {
  21. C.iggImNodesEndNode()
  22. }
  23. func ImNodesBeginNodeTitleBar() {
  24. C.iggImNodesBeginNodeTitleBar()
  25. }
  26. func ImNodesEndNodeTitleBar() {
  27. C.iggImNodesEndNodeTitleBar()
  28. }
  29. func ImNodesBeginInputAttribute(id int) {
  30. C.iggImNodesBeginInputAttribute(C.int(id))
  31. }
  32. func ImNodesEndInputAttribute() {
  33. C.iggImNodesEndInputAttribute()
  34. }
  35. func ImNodesBeginOutputAttribute(id int) {
  36. C.iggImNodesBeginOutputAttribute(C.int(id))
  37. }
  38. func ImNodesEndOutputAttribute() {
  39. C.iggImNodesEndOutputAttribute()
  40. }
  41. func ImNodesLink(id, startAttributeId, endAttributeId int) {
  42. C.iggImNodesLink(C.int(id), C.int(startAttributeId), C.int(endAttributeId))
  43. }
  44. func ImNodesIsLinkCreated() (startedNodeId, startedAttributeId, endedNodeId, endedAttributeId int32, createdFromSnap, isLinkCreated bool) {
  45. sNodeIdArg, sNodeIdDeleter := wrapInt32(&startedNodeId)
  46. defer sNodeIdDeleter()
  47. sAttrIdArg, sAttrIdDeleter := wrapInt32(&startedAttributeId)
  48. defer sAttrIdDeleter()
  49. eNodeIdArg, eNodeIdDeleter := wrapInt32(&endedNodeId)
  50. defer eNodeIdDeleter()
  51. eAttrIdArg, eAttrIdDeleter := wrapInt32(&endedAttributeId)
  52. defer eAttrIdDeleter()
  53. bArg, bArgDeleter := wrapBool(&createdFromSnap)
  54. defer bArgDeleter()
  55. isLinkCreated = C.iggImNodesIsLinkCreated(sNodeIdArg, sAttrIdArg, eNodeIdArg, eAttrIdArg, bArg) != 0
  56. return
  57. }
  58. func ImNodesIsLinkDestroyed() (linkId int32, isDestroyed bool) {
  59. linkIdArg, linkIdDeleter := wrapInt32(&linkId)
  60. defer linkIdDeleter()
  61. isDestroyed = C.iggImNodesIsLinkDestroyed(linkIdArg) != 0
  62. return
  63. }
  64. type ImNodesAttributeFlags int
  65. const (
  66. AttributeFlags_None ImNodesAttributeFlags = 0
  67. // Allow detaching a link by left-clicking and dragging the link at a pin it is connected to.
  68. // NOTE: the user has to actually delete the link for this to work. A deleted link can be
  69. // detected by calling IsLinkDestroyed() after EndNodeEditor().
  70. AttributeFlags_EnableLinkDetachWithDragClick ImNodesAttributeFlags = 1 << 0
  71. // Visual snapping of an in progress link will trigger IsLink Created/Destroyed events. Allows
  72. // for previewing the creation of a link while dragging it across attributes. See here for demo:
  73. // https://github.com/Nelarius/imnodes/issues/41#issuecomment-647132113 NOTE: the user has to
  74. // actually delete the link for this to work. A deleted link can be detected by calling
  75. // IsLinkDestroyed() after EndNodeEditor().
  76. AttributeFlags_EnableLinkCreationOnSnap ImNodesAttributeFlags = 1 << 1
  77. )
  78. func ImNodesPushAttributeFlag(flag ImNodesAttributeFlags) {
  79. C.iggImNodesPushAttributeFlag(C.int(flag))
  80. }
  81. func ImNodesPopAttributeFlag() {
  82. C.iggImNodesPopAttributeFlag()
  83. }
  84. func ImNodesEnableDetachWithCtrlClick() {
  85. C.iggImNodesEnableDetachWithCtrlClick()
  86. }
  87. func ImNodesSetNodeScreenSpacePos(nodeId int, pos Vec2) {
  88. posArg, _ := pos.wrapped()
  89. C.iggImNodesSetNodeScreenSpacePos(C.int(nodeId), posArg)
  90. }
  91. func ImNodesSetNodeEditorSpacePos(nodeId int, pos Vec2) {
  92. posArg, _ := pos.wrapped()
  93. C.iggImNodesSetNodeEditorSpacePos(C.int(nodeId), posArg)
  94. }
  95. func ImNodesSetNodeGridSpacePos(nodeId int, pos Vec2) {
  96. posArg, _ := pos.wrapped()
  97. C.iggImNodesSetNodeGridSpacePos(C.int(nodeId), posArg)
  98. }
  99. func ImNodesGetNodeScreenSpacePos(nodeId int) *Vec2 {
  100. var pos Vec2
  101. valueArg, valueDeleter := pos.wrapped()
  102. defer valueDeleter()
  103. C.iggImNodesGetNodeScreenSpacePos(C.int(nodeId), valueArg)
  104. return &pos
  105. }
  106. func ImNodesGetNodeEditorSpacePos(nodeId int) *Vec2 {
  107. var pos Vec2
  108. valueArg, valueDeleter := pos.wrapped()
  109. defer valueDeleter()
  110. C.iggImNodesGetNodeEditorSpacePos(C.int(nodeId), valueArg)
  111. return &pos
  112. }
  113. func ImNodesGetNodeGridSpacePos(nodeId int) *Vec2 {
  114. var pos Vec2
  115. valueArg, valueDeleter := pos.wrapped()
  116. defer valueDeleter()
  117. C.iggImNodesGetNodeGridSpacePos(C.int(nodeId), valueArg)
  118. return &pos
  119. }